Class Index

Kotlin |Java

These are the API classes. See all API packages.

A

AbsListView	Base class that can be used to implement virtualized lists of items.
AbsListView.LayoutParams	AbsListView extends LayoutParams to provide a place to hold the view type.
AbsListView.MultiChoiceModeListener	A MultiChoiceModeListener receives events for `AbsListView#CHOICE_MODE_MULTIPLE_MODAL`.
AbsListView.OnScrollListener	Interface definition for a callback to be invoked when the list or grid has been scrolled.
AbsListView.RecyclerListener	A RecyclerListener is used to receive a notification whenever a View is placed inside the RecycleBin's scrap heap.
AbsListView.SelectionBoundsAdjuster	The top-level view of a list item can implement this interface to allow itself to modify the bounds of the selection shown for that item.
AbsoluteLayout	This class was deprecated in API level 3. Use `FrameLayout`, `RelativeLayout` or a custom layout instead.
AbsoluteLayout.LayoutParams	Per-child layout information associated with AbsoluteLayout.
AbsoluteSizeSpan	A span that changes the size of the text it's attached to.
AbsSavedState	A `Parcelable` implementation that should be used by inheritance hierarchies to ensure the state of all classes along the chain is saved.
AbsSeekBar	AbsSeekBar extends the capabilities of ProgressBar by adding a draggable thumb.
AbsSpinner	An abstract base class for spinner widgets.
AbstractAccountAuthenticator	Abstract base class for creating AccountAuthenticators.
AbstractChronology	An abstract implementation of a calendar system, used to organize and identify dates.
AbstractCollection<E>	This class provides a skeletal implementation of the `Collection` interface, to minimize the effort required to implement this interface.
AbstractCursor	This is an abstract cursor class that handles a lot of the common code that all cursors need to deal with and is provided for convenience reasons.
AbstractCursor.SelfContentObserver	Cursors use this class to track changes others make to their URI.
AbstractExecutorService	Provides default implementations of `ExecutorService` execution methods.
AbstractInputMethodService	AbstractInputMethodService provides a abstract base class for input methods.
AbstractInputMethodService.AbstractInputMethodImpl	Base class for derived classes to implement their `InputMethod` interface.
AbstractInputMethodService.AbstractInputMethodSessionImpl	Base class for derived classes to implement their `InputMethodSession` interface.
AbstractInterruptibleChannel	Base implementation class for interruptible channels.
AbstractList<E>	This class provides a skeletal implementation of the `List` interface to minimize the effort required to implement this interface backed by a "random access" data store (such as an array).
AbstractMap<K, V>	This class provides a skeletal implementation of the `Map` interface, to minimize the effort required to implement this interface.
AbstractMap.SimpleEntry<K, V>	An Entry maintaining a key and a value.
AbstractMap.SimpleImmutableEntry<K, V>	An unmodifiable Entry maintaining a key and a value.
AbstractMethodError	Thrown when an application tries to call an abstract method.
AbstractOwnableSynchronizer	A synchronizer that may be exclusively owned by a thread.
AbstractPreferences	This class provides a skeletal implementation of the `Preferences` class, greatly easing the task of implementing it.
AbstractQueue<E>	This class provides skeletal implementations of some `Queue` operations.
AbstractQueuedLongSynchronizer	A version of `AbstractQueuedSynchronizer` in which synchronization state is maintained as a `long`.
AbstractQueuedLongSynchronizer.ConditionObject	Condition implementation for a `AbstractQueuedLongSynchronizer` serving as the basis of a `Lock` implementation.
AbstractQueuedSynchronizer	Provides a framework for implementing blocking locks and related synchronizers (semaphores, events, etc) that rely on first-in-first-out (FIFO) wait queues.
AbstractQueuedSynchronizer.ConditionObject	Condition implementation for a `AbstractQueuedSynchronizer` serving as the basis of a `Lock` implementation.
AbstractSelectableChannel	Base implementation class for selectable channels.
AbstractSelectionKey	Base implementation class for selection keys.
AbstractSelector	Base implementation class for selectors.
AbstractSequentialList<E>	This class provides a skeletal implementation of the `List` interface to minimize the effort required to implement this interface backed by a "sequential access" data store (such as a linked list).
AbstractSet<E>	This class provides a skeletal implementation of the `Set` interface to minimize the effort required to implement this interface.
AbstractThreadedSyncAdapter	An abstract implementation of a SyncAdapter that spawns a thread to invoke a sync operation.
AbstractVerifier	This class was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
AbstractWindowedCursor	A base class for Cursors that store their data in `CursorWindow`s.
AccelerateDecelerateInterpolator	An interpolator where the rate of change starts and ends slowly but accelerates through the middle.
AccelerateInterpolator	An interpolator where the rate of change starts out slowly and and then accelerates.
AcceptPendingException	Unchecked exception thrown when an attempt is made to initiate an accept operation on a channel and a previous accept operation has not completed.
AccessControlContext	Android doesn't support `SecurityManager`.
AccessControlException	This exception is thrown by the AccessController to indicate that a requested access (to a critical system resource such as the file system or the network) is denied.
AccessController	Android doesn't support `SecurityManager`.
AccessControlProfile	A class used to specify access controls.
AccessControlProfile.Builder	A builder for `AccessControlProfile`.
AccessControlProfileId	A class used to wrap an access control profile identifiers.
AccessDeniedException	Checked exception thrown when a file system operation is denied, typically due to a file permission or other access check.
AccessibilityButtonController	Controller for the accessibility button within the system's navigation area This class may be used to query the accessibility button's state and register callbacks for interactions with and state changes to the accessibility button when `AccessibilityServiceInfo#FLAG_REQUEST_ACCESSIBILITY_BUTTON` is set.
AccessibilityButtonController.AccessibilityButtonCallback	Callback for interaction with and changes to state of the accessibility button within the system's navigation area.
AccessibilityEvent	This class represents accessibility events that are sent by the system when something notable happens in the user interface.
AccessibilityEventSource	This interface is implemented by classes source of `AccessibilityEvent`s.
AccessibilityGestureEvent	This class describes the gesture event including gesture id and which display it happens on.
AccessibilityManager	System level service that serves as an event dispatch for `AccessibilityEvent`s, and provides facilities for querying the accessibility state of the system.
AccessibilityManager.AccessibilityServicesStateChangeListener	Listener for changes to the state of accessibility services.
AccessibilityManager.AccessibilityStateChangeListener	Listener for the system accessibility state.
AccessibilityManager.AudioDescriptionRequestedChangeListener	Listener for the audio description by default state.
AccessibilityManager.TouchExplorationStateChangeListener	Listener for the system touch exploration state.
AccessibilityNodeInfo	This class represents a node of the window content as well as actions that can be requested from its source.
AccessibilityNodeInfo.AccessibilityAction	A class defining an action that can be performed on an `AccessibilityNodeInfo`.
AccessibilityNodeInfo.CollectionInfo	Class with information if a node is a collection.
AccessibilityNodeInfo.CollectionInfo.Builder	The builder for CollectionInfo.
AccessibilityNodeInfo.CollectionItemInfo	Class with information if a node is a collection item.
AccessibilityNodeInfo.CollectionItemInfo.Builder	Builder for creating `CollectionItemInfo` objects.
AccessibilityNodeInfo.ExtraRenderingInfo	Class with information of a view useful to evaluate accessibility needs.
AccessibilityNodeInfo.RangeInfo	Class with information if a node is a range.
AccessibilityNodeInfo.TouchDelegateInfo	Class with information of touch delegated views and regions from `TouchDelegate` for the `AccessibilityNodeInfo`.
AccessibilityNodeProvider	This class is the contract a client should implement to enable support of a virtual view hierarchy rooted at a given view for accessibility purposes.
AccessibilityRecord	Represents a record in an `AccessibilityEvent` and contains information about state change of its source `View`.
AccessibilityRequestPreparer	Object responsible to ensuring that a `View` is prepared to meet a synchronous request for accessibility data.
AccessibilityService	Accessibility services should only be used to assist users with disabilities in using Android devices and apps.
AccessibilityService.GestureResultCallback	Class used to report status of dispatched gestures
AccessibilityService.MagnificationController	Used to control and query the state of display magnification.
AccessibilityService.MagnificationController.OnMagnificationChangedListener	Listener for changes in the state of magnification.
AccessibilityService.ScreenshotResult	Can be used to construct a bitmap of the screenshot or any other operations for `AccessibilityService#takeScreenshot` API.
AccessibilityService.SoftKeyboardController	Used to control, query, and listen for changes to the soft keyboard show mode.
AccessibilityService.SoftKeyboardController.OnShowModeChangedListener	Listener for changes in the soft keyboard show mode.
AccessibilityService.TakeScreenshotCallback	Interface used to report status of taking screenshot.
AccessibilityServiceInfo	This class describes an `AccessibilityService`.
AccessibilityWindowInfo	This class represents a state snapshot of a window for accessibility purposes.
AccessibleObject	The AccessibleObject class is the base class for Field, Method and Constructor objects.
AccessMode	Defines access modes used to test the accessibility of a file.
AccessNetworkConstants	Contains access network related constants.
AccessNetworkConstants.AccessNetworkType
AccessNetworkConstants.EutranBand	Frequency bands for EUTRAN.
AccessNetworkConstants.GeranBand	Frequency bands for GERAN.
AccessNetworkConstants.NgranBands	Frequency bands for NGRAN https://www.etsi.org/deliver/etsi_ts/138100_138199/13810101/15.08.02_60/ts_13810101v150802p.pdf https://www.etsi.org/deliver/etsi_ts/138100_138199/13810102/15.08.00_60/ts_13810102v150800p.pdf
AccessNetworkConstants.UtranBand	Frequency bands for UTRAN.
Account	Value type that represents an Account in the `AccountManager`.
AccountAuthenticatorActivity	This class was deprecated in API level 30. Applications should extend Activity themselves. This class is not compatible with AppCompat, and the functionality it provides is not complex.
AccountAuthenticatorResponse	Object used to communicate responses back to the AccountManager
AccountManager	This class provides access to a centralized registry of the user's online accounts.
AccountManagerCallback<V>
AccountManagerFuture<V>	A `AccountManagerFuture` represents the result of an asynchronous `AccountManager` call.
AccountsException
Acl	This interface was deprecated in API level 33. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.Policy` and related classes since 1.2.
AclEntry	An entry in an access control list (ACL).
AclEntry	This interface was deprecated in API level 33. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.Policy` and related classes since 1.2.
AclEntry.Builder	A builder of `AclEntry` objects.
AclEntryFlag	Defines the flags for used by the flags component of an ACL `entry`.
AclEntryPermission	Defines the permissions for use with the permissions component of an ACL `entry`.
AclEntryType	A typesafe enumeration of the access control entry types.
AclFileAttributeView	A file attribute view that supports reading or updating a file's Access Control Lists (ACL) or file owner attributes.
AclNotFoundException	This class was deprecated in API level 33. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.Policy` and related classes since 1.2.
AcousticEchoCanceler	Acoustic Echo Canceler (AEC).
Action	An action defined by the provider that intents into the provider's app for specific user actions.
ActionBar	A primary toolbar within the activity that may display the activity title, application-level navigation affordances, and other interactive items.
ActionBar.LayoutParams	Per-child layout information associated with action bar custom views.
ActionBar.OnMenuVisibilityListener	Listener for receiving events when action bar menus are shown or hidden.
ActionBar.OnNavigationListener	This interface was deprecated in API level 21. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionBar.Tab	This class was deprecated in API level 21. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionBar.TabListener	This interface was deprecated in API level 21. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionMenuView	ActionMenuView is a presentation of a series of menu options as a View.
ActionMenuView.LayoutParams
ActionMenuView.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
ActionMode	Represents a contextual mode of the user interface.
ActionMode.Callback	Callback interface for action modes.
ActionMode.Callback2	Extension of `ActionMode.Callback` to provide content rect information.
ActionProvider	An ActionProvider defines rich menu interaction in a single component.
ActionProvider.VisibilityListener	Listens to changes in visibility as reported by `ActionProvider#refreshVisibility()`.
ActiveCaloriesBurnedRecord	Captures the estimated active energy burned by the user (in kilocalories), excluding basal metabolic rate (BMR).
ActiveCaloriesBurnedRecord.Builder	Builder class for `ActiveCaloriesBurnedRecord`
Activity	An activity is a single, focused thing that the user can do.
Activity.ScreenCaptureCallback	Interface for observing screen captures of an `Activity`.
ActivityGroup	This class was deprecated in API level 13. Use the new `Fragment` and `FragmentManager` APIs instead; these are also available on older platforms through the Android compatibility package.
ActivityInfo	Information you can retrieve about a particular application activity or receiver.
ActivityInfo.WindowLayout	Contains information about position and size of the activity on the display.
ActivityInstrumentationTestCase<T extends Activity>	This class was deprecated in API level 3. new tests should be written using `ActivityInstrumentationTestCase2`, which provides more options for configuring the Activity under test
ActivityInstrumentationTestCase2<T extends Activity>	This class was deprecated in API level 24. Use ActivityTestRule instead. New tests should be written using the Android Testing Support Library.
ActivityManager	This class gives information about, and interacts with, activities, services, and the containing process.
ActivityManager.AppTask	The AppTask allows you to manage your own application's tasks.
ActivityManager.MemoryInfo	Information you can retrieve about the available memory through `ActivityManager#getMemoryInfo`.
ActivityManager.ProcessErrorStateInfo	Information you can retrieve about any processes that are in an error condition.
ActivityManager.RecentTaskInfo	Information you can retrieve about tasks that the user has most recently started or visited.
ActivityManager.RunningAppProcessInfo	Information you can retrieve about a running process.
ActivityManager.RunningServiceInfo	Information you can retrieve about a particular Service that is currently running in the system.
ActivityManager.RunningTaskInfo	Information you can retrieve about a particular task that is currently "running" in the system.
ActivityManager.TaskDescription	Information you can set and retrieve about the current activity within the recent task list.
ActivityManager.TaskDescription.Builder	Provides a convenient way to set the fields of a `TaskDescription` when creating a new instance.
ActivityNotFoundException	This exception is thrown when a call to `Context#startActivity` or one of its variants fails because an Activity can not be found to execute the given Intent.
ActivityOptions	Helper class for building an options Bundle that can be used with `Context.startActivity(Intent, Bundle)` and related methods.
ActivityTestCase	This class was deprecated in API level 24. New tests should be written using the Android Testing Support Library.
ActivityUnitTestCase<T extends Activity>	This class was deprecated in API level 24. Write Local Unit Tests instead.
Adapter	An Adapter object acts as a bridge between an `AdapterView` and the underlying data for that view.
AdapterView<T extends Adapter>	An AdapterView is a view whose children are determined by an `Adapter`.
AdapterView.AdapterContextMenuInfo	Extra menu information provided to the `View.OnCreateContextMenuListener.onCreateContextMenu(ContextMenu, View, ContextMenuInfo)` callback when a context menu is brought up for this AdapterView.
AdapterView.OnItemClickListener	Interface definition for a callback to be invoked when an item in this AdapterView has been clicked.
AdapterView.OnItemLongClickListener	Interface definition for a callback to be invoked when an item in this view has been clicked and held.
AdapterView.OnItemSelectedListener	Interface definition for a callback to be invoked when an item in this view has been selected.
AdapterViewAnimator	Base class for a `AdapterView` that will perform animations when switching between its views.
AdapterViewFlipper	Simple `ViewAnimator` that will animate between two or more views that have been added to it.
AdaptiveIconDrawable	This class can also be created via XML inflation using `<adaptive-icon>` tag in addition to dynamic creation.
AdBuffer	Buffer for advertisement data.
AddAdSelectionFromOutcomesOverrideRequest	This POJO represents the `TestAdSelectionManager.overrideAdSelectionFromOutcomesConfigRemoteInfo(AddAdSelectionFromOutcomesOverrideRequest, Executor, OutcomeReceiver)` ( AddAdSelectionOverrideRequest, Executor, OutcomeReceiver)} request It contains, a `AdSelectionFromOutcomesConfig` which will serve as the identifier for the specific override, a `String` selectionLogicJs and `String` selectionSignals field representing the override value
AddAdSelectionOverrideRequest	This POJO represents the `TestAdSelectionManager.overrideAdSelectionConfigRemoteInfo(android.adservices.adselection.AddAdSelectionOverrideRequest, java.util.concurrent.Executor, android.os.OutcomeReceiver)` request It contains, a `AdSelectionConfig` which will serve as the identifier for the specific override, a `String` decisionLogicJs and `String` trustedScoringSignals field representing the override value
AdData	Represents data specific to an ad that is necessary for ad selection and rendering.
AdData.Builder	Builder for `AdData` objects.
AddCustomAudienceOverrideRequest	This POJO represents the `TestCustomAudienceManager.overrideCustomAudienceRemoteInfo(android.adservices.customaudience.AddCustomAudienceOverrideRequest, java.util.concurrent.Executor, android.os.OutcomeReceiver)` request.
AddCustomAudienceOverrideRequest.Builder	Builder for `AddCustomAudienceOverrideRequest` objects.
AdditionalContentContract	Specifies constants used by Chooser when interacting with the additional content provider, see `Intent.EXTRA_CHOOSER_ADDITIONAL_CONTENT_URI`.
AdditionalContentContract.Columns
AdditionalContentContract.CursorExtraKeys	Constants for `Cursor.getExtras()` keys.
AdditionalContentContract.MethodNames	Constants for method names used with `ContentResolver.call(Uri, String, String, Bundle)` method.
Address	A class representing an Address, that is, a set of Strings describing a location.
AdFilters	A container class for filters which are associated with an ad.
AdFilters.Builder	Builder for creating `AdFilters` objects.
AdId	A unique, user-resettable, device-wide, per-profile ID for advertising.
AdIdManager	AdId Manager provides APIs for app and ad-SDKs to access advertising ID.
Adler32	A class that can be used to compute the Adler-32 checksum of a data stream.
AdRequest	An advertisement request which can be sent to TV input to request AD operations.
AdResponse	An advertisement response which can be sent to TV interactive App service to inform AD status.
AdSelectionConfig	Contains the configuration of the ad selection process.
AdSelectionConfig.Builder	Builder for `AdSelectionConfig` object.
AdSelectionFromOutcomesConfig	Contains the configuration of the ad selection process that select a winner from a given list of ad selection ids.
AdSelectionFromOutcomesConfig.Builder	Builder for `AdSelectionFromOutcomesConfig` objects.
AdSelectionManager	AdSelection Manager provides APIs for app and ad-SDKs to run ad selection processes as well as report impressions.
AdSelectionOutcome	This class represents a field in the `OutcomeReceiver`, which is an input to the `AdSelectionManager.selectAds(AdSelectionConfig, Executor, OutcomeReceiver)` in the `AdSelectionManager`.
AdSelectionOutcome.Builder	Builder for `AdSelectionOutcome` objects.
AdSelectionSignals	This class holds JSON that will be passed into a JavaScript function during ad selection.
AdServicesException	Exception thrown by AdServices.
AdServicesOutcomeReceiver<R, E extends Throwable>	Callback interface intended for use when an asynchronous operation may result in a failure.
AdServicesPermissions	Permissions used by the AdServices APIs.
AdServicesState	This class specifies the state of the APIs exposed by AdServicesApi apk.
AdTechIdentifier	An Identifier representing an ad buyer or seller.
Advanceable	This interface can be implemented by any collection-type view which has a notion of progressing through its set of children.
AdvertiseCallback	Bluetooth LE advertising callbacks, used to deliver advertising operation status.
AdvertiseData	Advertise data packet container for Bluetooth LE advertising.
AdvertiseData.Builder	Builder for `AdvertiseData`.
AdvertiseSettings	The `AdvertiseSettings` provide a way to adjust advertising preferences for each Bluetooth LE advertisement instance.
AdvertiseSettings.Builder	Builder class for `AdvertiseSettings`.
AdvertisingSet	This class provides a way to control single Bluetooth LE advertising instance.
AdvertisingSetCallback	Bluetooth LE advertising set callbacks, used to deliver advertising operation status.
AdvertisingSetParameters	The `AdvertisingSetParameters` provide a way to adjust advertising preferences for each Bluetooth LE advertising set.
AdvertisingSetParameters.Builder	Builder class for `AdvertisingSetParameters`.
AdWithBid	Represents an ad and its corresponding bid value after the bid generation step in the ad selection process.
AEADBadTagException	This exception is thrown when a `Cipher` operating in an AEAD mode (such as GCM/CCM) is unable to verify the supplied authentication tag.
AggregateRecordsGroupedByDurationResponse<T>	Class to represent the response from `HealthConnectManager#aggregateGroupByDuration`
AggregateRecordsGroupedByPeriodResponse<T>	Class to represent the response from `HealthConnectManager#aggregateGroupByPeriod`
AggregateRecordsRequest<T>	A class to create requests for `HealthConnectManager#aggregate`
AggregateRecordsRequest.Builder<T>
AggregateRecordsResponse<T>	A class representing response for `HealthConnectManager#aggregate`
AggregationType<T>	Class to represent aggregation types in `Record` classes.
AitInfo	AIT (Application Information Table) info.
AlarmClock	The AlarmClock provider contains an Intent action and extras that can be used to start an Activity to set a new alarm or timer in an alarm clock application.
AlarmManager	This class provides access to the system alarm services.
AlarmManager.AlarmClockInfo	An immutable description of a scheduled "alarm clock" event.
AlarmManager.OnAlarmListener	Direct-notification alarms: the requester must be running continuously from the time the alarm is set to the time it is delivered, or delivery will fail.
AlertDialog	A subclass of Dialog that can display one, two or three buttons.
AlertDialog.Builder
AlgorithmConstraints	This interface specifies constraints for cryptographic algorithms, keys (key sizes), and other algorithm parameters.
AlgorithmParameterGenerator	The `AlgorithmParameterGenerator` class is used to generate a set of parameters to be used with a certain algorithm.
AlgorithmParameterGeneratorSpi	This class defines the Service Provider Interface (SPI) for the `AlgorithmParameterGenerator` class, which is used to generate a set of parameters to be used with a certain algorithm.
AlgorithmParameters	This class is used as an opaque representation of cryptographic parameters.
AlgorithmParameterSpec	A (transparent) specification of cryptographic parameters.
AlgorithmParametersSpi	This class defines the Service Provider Interface (SPI) for the `AlgorithmParameters` class, which is used to manage algorithm parameters.
AliasActivity	This class was deprecated in API level 30. Use `<activity-alias>` or subclass Activity directly.
AlignmentSpan	Span that allows defining the alignment of text at the paragraph level.
AlignmentSpan.Standard	Default implementation of the `AlignmentSpan`.
Allocation	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Allocation.MipmapControl	Controls mipmap behavior when using the bitmap creation and update functions.
Allocation.OnBufferAvailableListener	Interface to handle notification when new buffers are available via `Allocation.USAGE_IO_INPUT`.
AllocationAdapter	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
AllowAllHostnameVerifier	This class was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
AllPermission	Android doesn't support `SecurityManager`.
AlphaAnimation	An animation that controls the alpha level of an object.
AlphabeticIndex<V>	AlphabeticIndex supports the creation of a UI index appropriate for a given language.
AlphabeticIndex.Bucket<V>	An index "bucket" with a label string and type.
AlphabeticIndex.Bucket.LabelType	Type of the label
AlphabeticIndex.ImmutableIndex<V>	Immutable, thread-safe version of `AlphabeticIndex`.
AlphabeticIndex.Record<V>	A (name, data) pair, to be sorted by name into one of the index buckets.
AlphabetIndexer	A helper class for adapters that implement the SectionIndexer interface.
AlreadyBoundException	Unchecked exception thrown when an attempt is made to bind the socket a network oriented channel that is already bound.
AlreadyConnectedException	Unchecked exception thrown when an attempt is made to connect a `SocketChannel` that is already connected.
AlreadyPersonalizedException	Thrown if trying to create a credential which already exists.
AlteredCharSequence	This class was deprecated in API level 30. The functionality this class offers is easily implemented outside the framework.
AlternativeSpan	List of alternative hypotheses for a specific span of a speech recognition result string.
AlternativeSpans	List of `AlternativeSpan` for a specific speech recognition result.
AltitudeConverter	Converts altitudes reported above the World Geodetic System 1984 (WGS84) reference ellipsoid into ones above Mean Sea Level.
AnalogClock	This class was deprecated in API level 23. This widget is no longer supported; except for `RemoteViews` use cases like app widgets.
AndroidCharacter	This class was deprecated in API level 26. Use various methods from `UCharacter`, instead.
AndroidException	Base class for all checked exceptions thrown by the Android frameworks.
AndroidRuntimeException	Base class for all unchecked exceptions thrown by the Android frameworks.
AndroidTestCase	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
AndroidTestRunner	This class was deprecated in API level 24. Use AndroidJUnitRunner instead. New tests should be written using the Android Testing Support Library.
Animatable	Interface that drawables supporting animations should implement.
Animatable2	Abstract class that drawables supporting animations and callbacks should extend.
Animatable2.AnimationCallback
AnimatedImageDrawable	`Drawable` for drawing animated images (like GIF).
AnimatedStateListDrawable	Drawable containing a set of Drawable keyframes where the currently displayed keyframe is chosen based on the current state set.
AnimatedVectorDrawable	This class animates properties of a `VectorDrawable` with animations defined using `ObjectAnimator` or `AnimatorSet`.
Animation	Abstraction for an Animation that can be applied to Views, Surfaces, or other objects.
Animation.AnimationListener	An animation listener receives notifications from an animation.
Animation.Description	Utility class to parse a string description of a size.
AnimationDrawable	An object used to create frame-by-frame animations, defined by a series of Drawable objects, which can be used as a View object's background.
AnimationSet	Represents a group of Animations that should be played together.
AnimationUtils	Defines common utilities for working with animations.
Animator	This is the superclass for classes which provide basic support for animations which can be started, ended, and have `AnimatorListeners` added to them.
Animator.AnimatorListener	An animation listener receives notifications from an animation.
Animator.AnimatorPauseListener	A pause listener receives notifications from an animation when the animation is `paused` or `resumed`.
AnimatorInflater	This class is used to instantiate animator XML files into Animator objects.
AnimatorListenerAdapter	This adapter class provides empty implementations of the methods from `Animator.AnimatorListener`.
AnimatorSet	This class plays a set of `Animator` objects in the specified order.
AnimatorSet.Builder	The `Builder` object is a utility class to facilitate adding animations to a `AnimatorSet` along with the relationships between the various animations.
AnnotatedElement	Represents an annotated element of the program currently running in this VM.
Annotation	Annotations are simple key-value pairs that are preserved across TextView save/restore cycles and can be used to keep application-specific data that needs to be maintained for regions of text.
Annotation	The common interface extended by all annotation interfaces.
Annotation	An Annotation object is used as a wrapper for a text attribute value if the attribute has annotation characteristics.
AnnotationFormatError	Thrown when the annotation parser attempts to read an annotation from a class file and determines that the annotation is malformed.
AnnotationTypeMismatchException	Thrown to indicate that a program has attempted to access an element of an annotation whose type has changed after the annotation was compiled (or serialized).
AnticipateInterpolator	An interpolator where the change starts backward then flings forward.
AnticipateOvershootInterpolator	An interpolator where the change starts backward then flings forward and overshoots the target value and finally goes back to the final value.
ApkChecksum	A typed checksum of an APK.
ApnSetting	An Access Point Name (APN) configuration for a carrier data connection.
ApnSetting.Builder	Provides a convenient way to set the fields of a `ApnSetting` when creating a new instance.
AppComponentFactory	Interface used to control the instantiation of manifest elements.
Appendable	An object to which `char` sequences and values can be appended.
AppInfo	Information about apps.
AppInfo	Application Info class containing details about a given application
AppInstallFilters	A container for the ad filters that are based on app install state.
AppInstallFilters.Builder	Builder for creating `AppInstallFilters` objects.
Application	Base class for maintaining global application state.
Application.ActivityLifecycleCallbacks
Application.OnProvideAssistDataListener	Callback interface for use with `Application#registerOnProvideAssistDataListener` and `Application#unregisterOnProvideAssistDataListener`.
ApplicationErrorReport	Describes an application error.
ApplicationErrorReport.AnrInfo	Describes an application not responding error.
ApplicationErrorReport.BatteryInfo	Describes a battery usage report.
ApplicationErrorReport.CrashInfo	Describes an application crash.
ApplicationErrorReport.RunningServiceInfo	Describes a running service report.
ApplicationExitInfo	Describes the information of an application process's death.
ApplicationInfo	Information you can retrieve about a particular application.
ApplicationInfo.DisplayNameComparator
ApplicationMediaCapabilities	ApplicationMediaCapabilities is an immutable class that encapsulates an application's capabilities for handling newer video codec format and media features.
ApplicationMediaCapabilities.Builder	Builder class for `ApplicationMediaCapabilities` objects.
ApplicationRuntime	Provides APIs to retrieve the information about the application loaded in the current runtime.
ApplicationStartInfo	Describes information related to an application process's startup.
ApplicationTestCase<T extends Application>	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
AppLinkInfo	App link information used by TV interactive app to launch Android apps.
AppOpsManager	App-ops are used for two purposes: Access control and tracking.
AppOpsManager.OnOpActiveChangedListener	Callback for notification of changes to operation active state.
AppOpsManager.OnOpChangedListener	Callback for notification of changes to operation state.
AppOpsManager.OnOpNotedCallback	Callback an app can `set` to monitor the app-ops the system has tracked for it.
AppOwnedSdkSandboxInterface	Represents a channel for an SDK in the sandbox process to interact with the app.
AppSearchBatchResult<KeyType, ValueType>	Provides results for AppSearch batch operations which encompass multiple documents.
AppSearchBatchResult.Builder<KeyType, ValueType>	Builder for `AppSearchBatchResult` objects.
AppSearchException	An exception thrown by `AppSearchSession` or a subcomponent.
AppSearchManager	Provides access to the centralized AppSearch index maintained by the system.
AppSearchManager.SearchContext	Contains information about how to create the search session.
AppSearchManager.SearchContext.Builder	Builder for `SearchContext` objects.
AppSearchResult<ValueType>	Information about the success or failure of an AppSearch call.
AppSearchSchema	The AppSearch Schema for a particular type of document.
AppSearchSchema.BooleanPropertyConfig	Configuration for a property containing a boolean.
AppSearchSchema.BooleanPropertyConfig.Builder	Builder for `BooleanPropertyConfig`.
AppSearchSchema.Builder	Builder for `objects`.
AppSearchSchema.BytesPropertyConfig	Configuration for a property containing a byte array.
AppSearchSchema.BytesPropertyConfig.Builder	Builder for `BytesPropertyConfig`.
AppSearchSchema.DocumentPropertyConfig	Configuration for a property containing another Document.
AppSearchSchema.DocumentPropertyConfig.Builder	Builder for `DocumentPropertyConfig`.
AppSearchSchema.DoublePropertyConfig	Configuration for a property containing a double-precision decimal number.
AppSearchSchema.DoublePropertyConfig.Builder	Builder for `DoublePropertyConfig`.
AppSearchSchema.LongPropertyConfig	Configuration for a property containing a 64-bit integer.
AppSearchSchema.LongPropertyConfig.Builder	Builder for `LongPropertyConfig`.
AppSearchSchema.PropertyConfig	Common configuration for a single property (field) in a Document.
AppSearchSchema.StringPropertyConfig	Configuration for a property of type String in a Document.
AppSearchSchema.StringPropertyConfig.Builder	Builder for `StringPropertyConfig`.
AppSearchSession	Provides a connection to a single AppSearch database.
AppSetId	A unique, per-device, per developer-account user-resettable ID for non-monetizing advertising usecases.
AppSetIdManager	AppSetIdManager provides APIs for app and ad-SDKs to access appSetId for non-monetizing purpose.
AppUriAuthenticationPolicy	The app-URI authentication policy is set by the credential management app.
AppUriAuthenticationPolicy.Builder	Builder class for `AppUriAuthenticationPolicy` objects.
AppWidgetHost	AppWidgetHost provides the interaction with the AppWidget service for apps, like the home screen, that want to embed AppWidgets in their UI.
AppWidgetHostView	Provides the glue to show AppWidget views.
AppWidgetManager	Updates AppWidget state; gets information about installed AppWidget providers and other AppWidget related state.
AppWidgetProvider	A convenience class to aid in implementing an AppWidget provider.
AppWidgetProviderInfo	Describes the meta data for an installed AppWidget provider.
ArchivedActivityInfo	Contains fields required to show archived package in Launcher.
ArchivedPackageInfo	Contains fields required for archived package installation, i.e.
ArcMotion	A PathMotion that generates a curved path along an arc on an imaginary circle containing the two points.
ArcShape	Creates an arc shape.
ArgbEvaluator	This evaluator can be used to perform type interpolation between integer values that represent ARGB colors.
ArithmeticException	Thrown when an exceptional arithmetic condition has occurred.
Array	The `Array` class provides static methods to dynamically create and access Java arrays.
Array	The mapping in the Java programming language for the SQL type `ARRAY`.
ArrayAdapter<T>	You can use this adapter to provide views for an `AdapterView`, Returns a view for each object in a collection of data objects you provide, and can be used with list-based user interface widgets such as `ListView` or `Spinner`.
ArrayBlockingQueue<E>	A bounded blocking queue backed by an array.
ArrayDeque<E>	Resizable-array implementation of the `Deque` interface.
ArrayIndexOutOfBoundsException	Thrown to indicate that an array has been accessed with an illegal index.
ArrayList<E>	Resizable-array implementation of the `List` interface.
ArrayMap<K, V>	ArrayMap is a generic key->value mapping data structure that is designed to be more memory efficient than a traditional `HashMap`.
Arrays	This class contains various methods for manipulating arrays (such as sorting and searching).
ArraySet<E>	ArraySet is a generic set data structure that is designed to be more memory efficient than a traditional `HashSet`.
ArrayStoreException	Thrown to indicate that an attempt has been made to store the wrong type of object into an array of objects.
ArrowKeyMovementMethod	A movement method that provides cursor movement and selection.
AssertionError	Thrown to indicate that an assertion has failed.
AssertionFailedError	This class was deprecated in API level 16. use junit.framework.AssertionFailedError
AssetFileDescriptor	File descriptor of an entry in the AssetManager.
AssetFileDescriptor.AutoCloseInputStream	An InputStream you can create on a ParcelFileDescriptor, which will take care of calling `ParcelFileDescriptor.close()` for you when the stream is closed.
AssetFileDescriptor.AutoCloseOutputStream	An OutputStream you can create on a ParcelFileDescriptor, which will take care of calling `ParcelFileDescriptor.close()` for you when the stream is closed.
AssetManager	Provides access to an application's raw asset files; see `Resources` for the way most applications will want to retrieve their resource data.
AssetManager.AssetInputStream
AssetsProvider	Provides callbacks that allow for the value of a file-based resources or assets of a `ResourcesProvider` to be specified or overridden.
AssistContent	Holds information about the content an application is viewing, to hand to an assistant at the user's request.
AssistStructure	This API automatically creates assist data from the platform's implementation of assist and autofill.
AssistStructure.ViewNode	Describes a single view in the assist data.
AssistStructure.WindowNode	Describes a window in the assist data.
AssociatedDevice	Container for device info from an association that is not self-managed.
AssociationInfo	Details for a specific "association" that has been established between an app and companion device.
AssociationRequest	A request for the user to select a companion device to associate with.
AssociationRequest.Builder	A builder for `AssociationRequest`
AsynchronousByteChannel	An asynchronous channel that can read and write bytes.
AsynchronousChannel	A channel that supports asynchronous I/O operations.
AsynchronousChannelGroup	A grouping of asynchronous channels for the purpose of resource sharing.
AsynchronousChannelProvider	Service-provider class for asynchronous channels.
AsynchronousCloseException	Checked exception received by a thread when another thread closes the channel or the part of the channel upon which it is blocked in an I/O operation.
AsynchronousFileChannel	An asynchronous channel for reading, writing, and manipulating a file.
AsynchronousServerSocketChannel	An asynchronous channel for stream-oriented listening sockets.
AsynchronousSocketChannel	An asynchronous channel for stream-oriented connecting sockets.
AsyncNotedAppOp	When an `app-op is noted` and the app the app-op is noted for has a `AppOpsManager.OnOpNotedCallback` registered the note-event needs to be delivered to the callback.
AsyncPlayer	Plays a series of audio URIs, but does all the hard work on another thread so that any slowness with preparing or loading doesn't block the calling thread.
AsyncQueryHandler	A helper class to help make handling asynchronous `ContentResolver` queries easier.
AsyncQueryHandler.WorkerArgs
AsyncQueryHandler.WorkerHandler
AsyncTask<Params, Progress, Result>	This class was deprecated in API level 30. Use the standard `java.util.concurrent` or Kotlin concurrency utilities instead.
AsyncTask.Status	Indicates the current status of the task.
AsyncTaskLoader<D>	This class was deprecated in API level 28. Use the Support Library `AsyncTaskLoader`
AtomicBoolean	A `boolean` value that may be updated atomically.
AtomicFile	Helper class for performing atomic operations on a file by writing to a new file and renaming it into the place of the original file after the write has successfully completed.
AtomicInteger	An `int` value that may be updated atomically.
AtomicIntegerArray	An `int` array in which elements may be updated atomically.
AtomicIntegerFieldUpdater<T>	A reflection-based utility that enables atomic updates to designated `volatile int` fields of designated classes.
AtomicLong	A `long` value that may be updated atomically.
AtomicLongArray	A `long` array in which elements may be updated atomically.
AtomicLongFieldUpdater<T>	A reflection-based utility that enables atomic updates to designated `volatile long` fields of designated classes.
AtomicMarkableReference<V>	An `AtomicMarkableReference` maintains an object reference along with a mark bit, that can be updated atomically.
AtomicMoveNotSupportedException	Checked exception thrown when a file cannot be moved as an atomic file system operation.
AtomicReference<V>	An object reference that may be updated atomically.
AtomicReferenceArray<E>	An array of object references in which elements may be updated atomically.
AtomicReferenceFieldUpdater<T, V>	A reflection-based utility that enables atomic updates to designated `volatile` reference fields of designated classes.
AtomicStampedReference<V>	An `AtomicStampedReference` maintains an object reference along with an integer "stamp", that can be updated atomically.
AttachCallback	Base class for Aware attach callbacks.
AttachedSurfaceControl	Provides an interface to the root-Surface of a View Hierarchy or Window.
AttachedSurfaceControl.OnBufferTransformHintChangedListener	Buffer transform hint change listener.
AttestedKeyPair	The `AttestedKeyPair` class contains a `KeyPair` instance of keys generated by Keystore and owned by KeyChain, as well as an attestation record for the key.
Attr	The `Attr` interface represents an attribute in an `Element` object.
AttributedCharacterIterator	An `AttributedCharacterIterator` allows iteration through both text and related attribute information.
AttributedCharacterIterator.Attribute	Defines attribute keys that are used to identify text attributes.
AttributedString	An AttributedString holds text and related attribute information.
AttributeList	This interface was deprecated in API level 9. This interface has been replaced by the SAX2 `Attributes` interface, which includes Namespace support.
AttributeListImpl	This class was deprecated in API level 9. This class implements a deprecated interface, `AttributeList`; that interface has been replaced by `Attributes`, which is implemented in the `AttributesImpl` helper class.
Attributes	The Attributes class maps Manifest attribute names to associated string values.
Attributes	Interface for a list of XML attributes.
Attributes.Name	The Attributes.Name class represents an attribute name stored in this Map.
Attributes2	SAX2 extension to augment the per-attribute information provided though `Attributes`.
Attributes2Impl	SAX2 extension helper for additional Attributes information, implementing the `Attributes2` interface.
AttributeSet	A collection of attributes, as found associated with a tag in an XML document.
AttributesImpl	Default implementation of the Attributes interface.
AttributeView	An object that provides a read-only or updatable view of non-opaque values associated with an object in a filesystem.
Attribution	Information about an attribution declared by a package.
AttributionSource	This class represents a source to which access to permission protected data should be attributed.
AttributionSource.Builder	A builder for `AttributionSource`
AudioAttributes	A class to encapsulate a collection of attributes describing information about an audio stream.
AudioAttributes.Builder	Builder class for `AudioAttributes` objects.
AudioCodec	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
AudioDescriptor	The AudioDescriptor contains the information to describe the audio playback/capture capabilities.
AudioDeviceCallback	AudioDeviceCallback defines the mechanism by which applications can receive notifications of audio device connection and disconnection events.
AudioDeviceInfo	Provides information about an audio device.
AudioEffect	AudioEffect is the base class for controlling audio effects provided by the android audio framework.
AudioEffect.Descriptor	The effect descriptor contains information on a particular effect implemented in the audio framework: type: UUID identifying the effect type.
AudioEffect.OnControlStatusChangeListener	The OnControlStatusChangeListener interface defines a method called by the AudioEffect when control of the effect engine is gained or lost by the application
AudioEffect.OnEnableStatusChangeListener	The OnEnableStatusChangeListener interface defines a method called by the AudioEffect when the enabled state of the effect engine was changed by the controlling application.
AudioFocusRequest	A class to encapsulate information about an audio focus request.
AudioFocusRequest.Builder	Builder class for `AudioFocusRequest` objects.
AudioFormat	The `AudioFormat` class is used to access a number of audio format and channel configuration constants.
AudioFormat.Builder	Builder class for `AudioFormat` objects.
AudioGroup	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
AudioManager	AudioManager provides access to volume and ringer mode control.
AudioManager.AudioPlaybackCallback	Interface for receiving update notifications about the playback activity on the system.
AudioManager.AudioRecordingCallback	Interface for receiving update notifications about the recording configuration.
AudioManager.OnAudioFocusChangeListener	Interface definition for a callback to be invoked when the audio focus of the system is updated.
AudioManager.OnCommunicationDeviceChangedListener	Listener registered by client to be notified upon communication audio device change.
AudioManager.OnModeChangedListener	Interface definition of a callback that is notified when the audio mode changes
AudioManager.OnPreferredMixerAttributesChangedListener	Interface to be notified of changes in the preferred mixer attributes.
AudioMetadata	AudioMetadata class is used to manage typed key-value pairs for configuration and capability requests within the Audio Framework.
AudioMetadata.Format	A container class for AudioMetadata Format keys.
AudioMetadata.Key<T>	Key interface for the `AudioMetadata` map.
AudioMetadataMap	AudioMetadataMap is a writeable `Map`-style interface of `AudioMetadata.Key` value pairs.
AudioMetadataReadMap	A read only `Map`-style interface of `AudioMetadata.Key` value pairs used for `AudioMetadata`.
AudioMixerAttributes	Class to represent the attributes of the audio mixer: its format, which represents by an `AudioFormat` object and mixer behavior.
AudioMixerAttributes.Builder	Builder class for `AudioMixerAttributes` objects.
AudioPlaybackCaptureConfiguration	Configuration for capturing audio played by other apps.
AudioPlaybackCaptureConfiguration.Builder	Builder for creating `AudioPlaybackCaptureConfiguration` instances.
AudioPlaybackConfiguration	The AudioPlaybackConfiguration class collects the information describing an audio playback session.
AudioPresentation	The AudioPresentation class encapsulates the information that describes an audio presentation which is available in next generation audio content.
AudioPresentation.Builder	A builder class for creating `AudioPresentation` objects.
AudioProfile	An AudioProfile is specific to an audio format and lists supported sampling rates and channel masks for that format.
AudioRecord	The AudioRecord class manages the audio resources for Java applications to record audio from the audio input hardware of the platform.
AudioRecord.Builder	Builder class for `AudioRecord` objects.
AudioRecord.MetricsConstants
AudioRecord.OnRecordPositionUpdateListener	Interface definition for a callback to be invoked when an AudioRecord has reached a notification marker set by `AudioRecord#setNotificationMarkerPosition(int)` or for periodic updates on the progress of the record head, as set by `AudioRecord#setPositionNotificationPeriod(int)`.
AudioRecord.OnRoutingChangedListener	This interface was deprecated in API level 24. users should switch to the general purpose `AudioRouting.OnRoutingChangedListener` class instead.
AudioRecordingConfiguration	The AudioRecordingConfiguration class collects the information describing an audio recording session.
AudioRecordingMonitor	AudioRecordingMonitor defines an interface implemented by `AudioRecord` and `MediaRecorder` allowing applications to install a callback and be notified of changes in the capture path while recoding is active.
AudioRouting	AudioRouting defines an interface for controlling routing and routing notifications in AudioTrack and AudioRecord objects.
AudioRouting.OnRoutingChangedListener	Defines the interface by which applications can receive notifications of routing changes for the associated `AudioRouting`.
AudioStream	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
AudioTimestamp	Structure that groups a position in frame units relative to an assumed audio stream, together with the estimated time when that frame enters or leaves the audio processing pipeline on that device.
AudioTrack	The AudioTrack class manages and plays a single audio resource for Java applications.
AudioTrack.Builder	Builder class for `AudioTrack` objects.
AudioTrack.MetricsConstants
AudioTrack.OnCodecFormatChangedListener	Interface definition for a listener for codec format changes.
AudioTrack.OnPlaybackPositionUpdateListener	Interface definition for a callback to be invoked when the playback head position of an AudioTrack has reached a notification marker or has increased by a certain period.
AudioTrack.OnRoutingChangedListener	This interface was deprecated in API level 24. users should switch to the general purpose `AudioRouting.OnRoutingChangedListener` class instead.
AudioTrack.StreamEventCallback	Abstract class to receive event notifications about the stream playback in offloaded mode.
AuthenticationKeyMetadata	Data about authentication keys.
AuthenticationRequiredException	Specialization of `SecurityException` that is thrown when authentication is needed from the end user before viewing the content.
Authenticator	The class Authenticator represents an object that knows how to obtain authentication for a network connection.
Authenticator.RequestorType	The type of the entity requesting authentication.
AuthenticatorDescription	A `Parcelable` value type that contains information about an account authenticator.
AuthenticatorException
AuthPermission	Legacy security code; do not use.
AuthProvider	Legacy security code; do not use.
AutoCloseable	An object that may hold resources (such as file or socket handles) until it is closed.
AutoCompleteTextView	An editable text view that shows completion suggestions automatically while the user is typing.
AutoCompleteTextView.OnDismissListener	Listener to respond to the AutoCompleteTextView's completion list being dismissed.
AutoCompleteTextView.Validator	This interface is used to make sure that the text entered in this TextView complies to a certain format.
AutofillId	A unique identifier for an autofill node inside an `Activity`.
AutofillManager	The `AutofillManager` class provides ways for apps and custom views to integrate with the Autofill Framework lifecycle.
AutofillManager.AutofillCallback	Callback for autofill related events.
AutofillService	An `AutofillService` is a service used to automatically fill the contents of the screen on behalf of a given user - for more information about autofill, read Autofill Framework.
AutofillValue	Abstracts how a `View` can be autofilled by an `AutofillService`.
AutomaticGainControl	Automatic Gain Control (AGC).
AutomaticZenRule	Rule instance information for a zen (aka DND or Attention Management) mode.
AutomaticZenRule.Builder
AutoText	This class accesses a dictionary of corrections to frequent misspellings.
AutoTransition	Utility class for creating a default transition that automatically fades, moves, and resizes views during a scene change.
AvailableNetworkInfo	Defines available network information which includes corresponding subscription id, network plmns and corresponding priority to be used for network selection by Opportunistic Network Service when passed through `TelephonyManager#updateAvailableNetworks`
AvailableNetworkInfo.Builder	Provides a convenient way to set the fields of a `AvailableNetworkInfo` when creating a new instance.
AvailableNfcAntenna	Represents a single available Nfc antenna on an Android device.
AwarePairingConfig	The config for the Aware Pairing.
AwarePairingConfig.Builder	Builder used to build `AwarePairingConfig` objects.
AwareResources	The resources of the Aware service.

B

BackendBusyException	Indicates a transient error that prevented a key operation from being created.
BackEvent	Object used to report back gesture progress.
BackgroundColorSpan	Changes the background color of the text to which the span is attached.
BackgroundServiceStartNotAllowedException	Exception thrown when an app tries to start a background `Service` when it's not allowed to do so.
BackingStoreException	Thrown to indicate that a preferences operation could not complete because of a failure in the backing store, or a failure to contact the backing store.
BackupAgent	Provides the central interface between an application and Android's data backup infrastructure.
BackupAgentHelper	A convenient `BackupAgent` wrapper class that automatically manages heterogeneous data sets within the backup data, each identified by a unique key prefix.
BackupDataInput	Provides the structured interface through which a `BackupAgent` reads information from the backup data set, via its `onRestore()` method.
BackupDataInputStream	Provides an `InputStream`-like interface for accessing an entity's data during a restore operation.
BackupDataOutput	Provides the structured interface through which a `BackupAgent` commits information to the backup data set, via its `onBackup()` method.
BackupHelper	Defines the calling interface that `BackupAgentHelper` uses when dispatching backup and restore operations to the installed helpers.
BackupManager	The interface through which an application interacts with the Android backup service to request backup and restore operations.
BadPaddingException	This exception is thrown when a particular padding mechanism is expected for the input data but the data is not padded properly.
BadParcelableException	Exception thrown when a `Parcelable` is malformed or otherwise invalid.
BarringInfo	Provides the barring configuration for a particular service type.
BarringInfo.BarringServiceInfo	Describe the current barring configuration of a cell
BasalBodyTemperatureRecord	Captures the body temperature of a user when at rest (for example, immediately after waking up).
BasalBodyTemperatureRecord.Builder	Builder class for `BasalBodyTemperatureRecord`
BasalMetabolicRateRecord	Captures the BMR of a user.
BasalMetabolicRateRecord.Builder	Builder class for `BasalMetabolicRateRecord`
Base64	Utilities for encoding and decoding the Base64 representation of binary data.
Base64	This class consists exclusively of static methods for obtaining encoders and decoders for the Base64 encoding scheme.
Base64.Decoder	This class implements a decoder for decoding byte data using the Base64 encoding scheme as specified in RFC 4648 and RFC 2045.
Base64.Encoder	This class implements an encoder for encoding byte data using the Base64 encoding scheme as specified in RFC 4648 and RFC 2045.
Base64DataException	This exception is thrown by `Base64InputStream` or `Base64OutputStream` when an error is detected in the data being decoded.
Base64InputStream	An InputStream that does Base64 decoding on the data read through it.
Base64OutputStream	An OutputStream that does Base64 encoding on the data written to it, writing the resulting data to another OutputStream.
BaseAdapter	Common base class of common implementation for an `Adapter` that can be used in both `ListView` (by implementing the specialized `ListAdapter` interface) and `Spinner` (by implementing the specialized `SpinnerAdapter` interface).
BaseBundle	A mapping from String keys to values of various types.
BaseColumns
BaseDexClassLoader	Base class for common functionality between various dex-based `ClassLoader` implementations.
BaseExpandableListAdapter	Base class for a `ExpandableListAdapter` used to provide data and Views from some data to an expandable list view.
BaseInputConnection	Base class for implementors of the InputConnection interface, taking care of most of the common behavior for providing a connection to an Editable.
BaseInterpolator	An abstract class which is extended by default interpolators.
BaseKeyListener	Abstract base class for key listeners.
BaseMovementMethod	Base classes for movement methods.
BaseObj	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
BaseStream<T, S extends BaseStream<T, S>>	Base interface for streams, which are sequences of elements supporting sequential and parallel aggregate operations.
BasicFileAttributes	Basic attributes associated with a file in a file system.
BasicFileAttributeView	A file attribute view that provides a view of a basic set of file attributes common to many file systems.
BasicPermission	Android doesn't support `SecurityManager`.
BassBoost	Bass boost is an audio effect to boost or amplify low frequencies of the sound.
BassBoost.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the BassBoost when a parameter value has changed.
BassBoost.Settings	The Settings class regroups all bass boost parameters.
BatchResultCallback<KeyType, ValueType>	The callback interface to return `AppSearchBatchResult`.
BatchUpdateException	The subclass of `SQLException` thrown when an error occurs during a batch update operation.
BatchUpdates	Defines actions to be applied to a `template presentation`.
BatchUpdates.Builder	Builder for `BatchUpdates` objects.
BatteryManager	The BatteryManager class contains strings and constants used for values in the `Intent.ACTION_BATTERY_CHANGED` Intent, and provides a method for querying battery and charging properties.
BatteryState	The BatteryState class is a representation of a single battery on a device.
BeginCreateCredentialRequest	Request for beginning a create credential request.
BeginCreateCredentialResponse	Response to a `BeginCreateCredentialRequest`.
BeginCreateCredentialResponse.Builder	A builder for `BeginCreateCredentialResponse`
BeginGetCredentialOption	A specific type of credential request to be sent to the provider during the query phase of a get flow.
BeginGetCredentialRequest	Query stage request for getting user's credentials from a given credential provider.
BeginGetCredentialRequest.Builder	Builder for `BeginGetCredentialRequest`.
BeginGetCredentialResponse	Response from a credential provider, containing credential entries and other associated data to be shown on the account selector UI.
BeginGetCredentialResponse.Builder	Builds an instance of `BeginGetCredentialResponse`.
BiConsumer<T, U>	Represents an operation that accepts two input arguments and returns no result.
Bidi	Bidi algorithm for ICU This is an implementation of the Unicode Bidirectional Algorithm.
Bidi	This class implements the Unicode Bidirectional Algorithm.
BidiClassifier	Overrides default Bidi class values with custom ones.
BidiFormatter	Utility class for formatting text for display in a potentially opposite-directionality context without garbling.
BidiFormatter.Builder	A class for building a BidiFormatter with non-default options.
BidirectionalStream	Class for bidirectional sending and receiving of data over HTTP/2 or QUIC connections.
BidirectionalStream.Builder	Builder for `BidirectionalStream`s.
BidirectionalStream.Callback	Callback interface used to receive callbacks from a `BidirectionalStream`.
BidirectionalTypeConverter<T, V>	Abstract base class used convert type T to another type V and back again.
BidiRun	A BidiRun represents a sequence of characters at the same embedding level.
BiFunction<T, U, R>	Represents a function that accepts two arguments and produces a result.
BigDecimal	The `BigDecimal` class implements immutable arbitrary-precision decimal numbers.
BigDecimal	Immutable, arbitrary-precision signed decimal numbers.
BigInteger	Immutable arbitrary-precision integers.
BinaryOperator<T>	Represents an operation upon two operands of the same type, producing a result of the same type as the operands.
Binder	Base class for a remotable object, the core part of a lightweight remote procedure call mechanism defined by `IBinder`.
BindException	Signals that an error occurred while attempting to bind a socket to a local address and port.
BiometricManager	A class that contains biometric utilities.
BiometricManager.Authenticators	Types of authenticators, defined at a level of granularity supported by `BiometricManager` and `BiometricPrompt`.
BiometricManager.Strings	Provides localized strings for an application that uses `BiometricPrompt` to authenticate the user.
BiometricPrompt	A class that manages a system-provided biometric dialog.
BiometricPrompt.AuthenticationCallback	Callback structure provided to `BiometricPrompt#authenticate(CancellationSignal, Executor, AuthenticationCallback)` or `BiometricPrompt#authenticate(CryptoObject, CancellationSignal, Executor, AuthenticationCallback)`.
BiometricPrompt.AuthenticationResult	Container for callback data from `BiometricPrompt.authenticate(android.os.CancellationSignal, java.util.concurrent.Executor, android.hardware.biometrics.BiometricPrompt.AuthenticationCallback)` and `BiometricPrompt.authenticate(android.hardware.biometrics.BiometricPrompt.CryptoObject, android.os.CancellationSignal, java.util.concurrent.Executor, android.hardware.biometrics.BiometricPrompt.AuthenticationCallback)`.
BiometricPrompt.Builder	A builder that collects arguments to be shown on the system-provided biometric dialog.
BiometricPrompt.CryptoObject	A wrapper class for the cryptographic operations supported by BiometricPrompt.
BiPredicate<T, U>	Represents a predicate (boolean-valued function) of two arguments.
Bitmap
Bitmap.CompressFormat	Specifies the known formats a bitmap can be compressed into
Bitmap.Config	Possible bitmap configurations.
BitmapDrawable	A Drawable that wraps a bitmap and can be tiled, stretched, or aligned.
BitmapFactory	Creates Bitmap objects from various sources, including files, streams, and byte-arrays.
BitmapFactory.Options
BitmapRegionDecoder	BitmapRegionDecoder can be used to decode a rectangle region from an image.
BitmapShader	Shader used to draw a bitmap as a texture.
BitSet	This class implements a vector of bits that grows as needed.
BlackLevelPattern	Immutable class to store a 4-element vector of integers corresponding to a 2x2 pattern of color channel offsets used for the black level offsets of each color channel.
BlendMode
BlendModeColorFilter	A color filter that can be used to tint the source pixels using a single color and a specific `BlendMode`.
Blob	The representation (mapping) in the Java^TM programming language of an SQL `BLOB` value.
BlobHandle	An identifier to represent a blob.
BlobStoreManager	This class provides access to the blob store managed by the system.
BlobStoreManager.Session	Represents an ongoing session of a blob's contribution to the blob store managed by the system.
BlockedNumberContract	The contract between the blockednumber provider and applications.
BlockedNumberContract.BlockedNumbers	Constants to interact with the blocked numbers list.
BlockingDeque<E>	A `Deque` that additionally supports blocking operations that wait for the deque to become non-empty when retrieving an element, and wait for space to become available in the deque when storing an element.
BlockingQueue<E>	A `Queue` that additionally supports operations that wait for the queue to become non-empty when retrieving an element, and wait for space to become available in the queue when storing an element.
BloodGlucose	Represents a unit of blood glucose level (glycaemia).
BloodGlucoseRecord	Captures the concentration of glucose in the blood.
BloodGlucoseRecord.Builder	Builder class for `BloodGlucoseRecord`
BloodGlucoseRecord.RelationToMealType	Relationship of the meal to the blood glucose measurement.
BloodGlucoseRecord.SpecimenSource	Type of body fluid used to measure the blood glucose.
BloodPressureRecord	Captures the blood pressure of a user.
BloodPressureRecord.BloodPressureMeasurementLocation	Identifier for Blood Pressure Measurement Location
BloodPressureRecord.BodyPosition	Identifier for body position
BloodPressureRecord.Builder	Builder class for `BloodPressureRecord`
BluetoothA2dp	This class provides the public APIs to control the Bluetooth A2DP profile.
BluetoothAdapter	Represents the local device Bluetooth adapter.
BluetoothAdapter.LeScanCallback	Callback interface used to deliver LE scan results.
BluetoothAssignedNumbers	Bluetooth Assigned Numbers.
BluetoothClass	Represents a Bluetooth class, which describes general characteristics and capabilities of a device.
BluetoothClass.Device	Defines all device class constants.
BluetoothClass.Device.Major	Defines all major device class constants.
BluetoothClass.Service	Defines all service class constants.
BluetoothCodecConfig	Represents the codec configuration for a Bluetooth A2DP source device.
BluetoothCodecConfig.Builder	Builder for `BluetoothCodecConfig`.
BluetoothCodecStatus	Represents the codec status (configuration and capability) for a Bluetooth A2DP source device.
BluetoothCodecStatus.Builder	Builder for `BluetoothCodecStatus`.
BluetoothCodecType	Represents a supported source codec type for a Bluetooth A2DP device.
BluetoothCsipSetCoordinator	This class provides the public APIs to control the Bluetooth CSIP set coordinator.
BluetoothDevice	Represents a remote Bluetooth device.
BluetoothDeviceFilter	A filter for Bluetooth(non-LE) devices
BluetoothDeviceFilter.Builder	A builder for `BluetoothDeviceFilter`
BluetoothGatt	Public API for the Bluetooth GATT Profile.
BluetoothGattCallback	This abstract class is used to implement `BluetoothGatt` callbacks.
BluetoothGattCharacteristic	Represents a Bluetooth GATT Characteristic A GATT characteristic is a basic data element used to construct a GATT service, `BluetoothGattService`.
BluetoothGattDescriptor	Represents a Bluetooth GATT Descriptor GATT Descriptors contain additional information and attributes of a GATT characteristic, `BluetoothGattCharacteristic`.
BluetoothGattServer	Public API for the Bluetooth GATT Profile server role.
BluetoothGattServerCallback	This abstract class is used to implement `BluetoothGattServer` callbacks.
BluetoothGattService	Represents a Bluetooth GATT Service Gatt Service contains a collection of `BluetoothGattCharacteristic`, as well as referenced services.
BluetoothHeadset	Public API for controlling the Bluetooth Headset Service.
BluetoothHealth	This class was deprecated in API level 29. Health Device Profile (HDP) and MCAP protocol are no longer used. New apps should use Bluetooth Low Energy based solutions such as `BluetoothGatt`, `BluetoothAdapter.listenUsingL2capChannel()`, or `BluetoothDevice.createL2capChannel(int)`
BluetoothHealthAppConfiguration	This class was deprecated in API level 29. Health Device Profile (HDP) and MCAP protocol are no longer used. New apps should use Bluetooth Low Energy based solutions such as `BluetoothGatt`, `BluetoothAdapter.listenUsingL2capChannel()`, or `BluetoothDevice.createL2capChannel(int)`
BluetoothHealthCallback	This class was deprecated in API level 29. Health Device Profile (HDP) and MCAP protocol are no longer used. New apps should use Bluetooth Low Energy based solutions such as `BluetoothGatt`, `BluetoothAdapter.listenUsingL2capChannel()`, or `BluetoothDevice.createL2capChannel(int)`
BluetoothHearingAid	This class provides the public APIs to control the Hearing Aid profile.
BluetoothHidDevice	Provides the public APIs to control the Bluetooth HID Device profile.
BluetoothHidDevice.Callback	The template class that applications use to call callback functions on events from the HID host.
BluetoothHidDeviceAppQosSettings	Represents the Quality of Service (QoS) settings for a Bluetooth HID Device application.
BluetoothHidDeviceAppSdpSettings	Represents the Service Discovery Protocol (SDP) settings for a Bluetooth HID Device application.
BluetoothLeAdvertiser	This class provides a way to perform Bluetooth LE advertise operations, such as starting and stopping advertising.
BluetoothLeAudio	This class provides the public APIs to control the LeAudio profile.
BluetoothLeAudioCodecConfig	Represents the codec configuration for a Bluetooth LE Audio source device.
BluetoothLeAudioCodecConfig.Builder	Builder for `BluetoothLeAudioCodecConfig`.
BluetoothLeAudioCodecStatus	Represents the codec status (configuration and capability) for a Bluetooth Le Audio source device.
BluetoothLeDeviceFilter	A filter for Bluetooth LE devices
BluetoothLeDeviceFilter.Builder	Builder for `BluetoothLeDeviceFilter`
BluetoothLeScanner	This class provides methods to perform scan related operations for Bluetooth LE devices.
BluetoothManager	High level manager used to obtain an instance of an `BluetoothAdapter` and to conduct overall Bluetooth Management.
BluetoothProfile	Public APIs for the Bluetooth Profiles.
BluetoothProfile.ServiceListener	An interface for notifying BluetoothProfile IPC clients when they have been connected or disconnected to the service.
BluetoothServerSocket	A listening Bluetooth socket.
BluetoothSocket	A connected or connecting Bluetooth socket.
BluetoothSocketException	Thrown when an error occurs during a Bluetooth Socket related exception.
BluetoothStatusCodes	A class with constants representing possible return values for Bluetooth APIs.
BlurMaskFilter	This takes a mask, and blurs its edge by the specified radius.
BlurMaskFilter.Blur
BodyFatRecord	Captures the body fat percentage of a user.
BodyFatRecord.Builder	Builder class for `BodyFatRecord`
BodyTemperatureMeasurementLocation	Where on the user's body a temperature measurement was taken from.
BodyTemperatureRecord	Captures the body temperature of a user.
BodyTemperatureRecord.Builder	Builder class for `BodyTemperatureRecord`
BodyWaterMassRecord	Captures the user's body water mass.
BodyWaterMassRecord.Builder	Builder class for `BodyWaterMassRecord`
BoneMassRecord	Captures the user's bone mass.
BoneMassRecord.Builder	Builder class for `BoneMassRecord`
Boolean	The Boolean class wraps a value of the primitive type `boolean` in an object.
BooleanAction	Action sent by user toggling a `Control` between checked/unchecked.
BooleanSupplier	Represents a supplier of `boolean`-valued results.
BootstrapMethodError	Thrown to indicate that an `invokedynamic` instruction or a dynamic constant failed to resolve its bootstrap method and arguments, or for `invokedynamic` instruction the bootstrap method has failed to provide a call site with a target of the correct method type, or for a dynamic constant the bootstrap method has failed to provide a constant value of the required type.
BoringLayout	A BoringLayout is a very simple Layout implementation for text that fits on a single line and is all left-to-right characters.
BoringLayout.Metrics
BounceInterpolator	An interpolator where the change bounces at the end.
BrailleDisplayController	Used to communicate with a Braille display that supports the Braille display HID standard (usage page 0x41).
BrailleDisplayController.BrailleDisplayCallback	Interface provided to `BrailleDisplayController` connection methods to receive callbacks from the system.
BreakIterator	[icu enhancement] ICU's replacement for `BreakIterator`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
BreakIterator	The `BreakIterator` class implements methods for finding the location of boundaries in text.
BroadcastInfoRequest	A request for the information retrieved from broadcast signal.
BroadcastInfoResponse	A response of `BroadcastInfoRequest` for information retrieved from broadcast signal.
BroadcastOptions	Helper class for building an options Bundle that can be used with `Context.sendBroadcast(Intent)` and related methods.
BroadcastReceiver	Base class for code that receives and handles broadcast intents sent by `Context.sendBroadcast(Intent)`.
BroadcastReceiver.PendingResult	State for a result that is pending for a broadcast receiver.
BrokenBarrierException	Exception thrown when a thread tries to wait upon a barrier that is in a broken state, or which enters the broken state while the thread is waiting.
Browser
BrowserCompatHostnameVerifier	This class was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
BuddhistCalendar	`BuddhistCalendar` is a subclass of `GregorianCalendar` that numbers years since the birth of the Buddha.
Buffer	A container for data of a specific primitive type.
BufferedInputStream	A `BufferedInputStream` adds functionality to another input stream-namely, the ability to buffer the input and to support the `mark` and `reset` methods.
BufferedOutputStream	The class implements a buffered output stream.
BufferedReader	Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
BufferedWriter	Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.
BufferOverflowException	Unchecked exception thrown when a relative put operation reaches the target buffer's limit.
BufferUnderflowException	Unchecked exception thrown when a relative get operation reaches the source buffer's limit.
BugreportManager	Class that provides a privileged API to capture and consume bugreports.
BugreportManager.BugreportCallback	An interface describing the callback for bugreport progress and status.
Build	Information about the current build, extracted from system properties.
Build.Partition	Build information for a particular device partition.
Build.VERSION	Various version strings.
Build.VERSION_CODES	Enumeration of the currently known SDK version codes.
BulletSpan	A span which styles paragraphs as bullet points (respecting layout direction).
Bundle	A mapping from String keys to various `Parcelable` values.
BundleSession	An instances of this class represents a session with data stored in a bundle.
Button	A user interface element the user can tap or click to perform an action.
Byte	The `Byte` class wraps a value of primitive type `byte` in an object.
Byte2	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Byte3	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Byte4	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ByteArrayInputStream	A `ByteArrayInputStream` contains an internal buffer that contains bytes that may be read from the stream.
ByteArrayOutputStream	This class implements an output stream in which the data is written into a byte array.
ByteBuffer	A byte buffer.
ByteChannel	A channel that can read and write bytes.
ByteOrder	A typesafe enumeration for byte orders.

C

CacheRequest	Represents channels for storing resources in the ResponseCache.
CacheResponse	Represent channels for retrieving resources from the ResponseCache.
Calendar	[icu enhancement] ICU's replacement for `Calendar`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
Calendar	The `Calendar` class is an abstract class that provides methods for converting between a specific instant in time and a set of `calendar fields` such as `YEAR`, `MONTH`, `DAY_OF_MONTH`, `HOUR`, and so on, and for manipulating the calendar fields, such as getting the date of the next week.
Calendar.Builder	`Calendar.Builder` is used for creating a `Calendar` from various date-time parameters.
Calendar.WeekData	Simple, immutable struct-like class for access to the CLDR week data.
CalendarContract	The contract between the calendar provider and applications.
CalendarContract.Attendees	Fields and helpers for interacting with Attendees.
CalendarContract.AttendeesColumns	Columns from the Attendees table that other tables join into themselves.
CalendarContract.CalendarAlerts	Fields and helpers for accessing calendar alerts information.
CalendarContract.CalendarAlertsColumns
CalendarContract.CalendarCache	CalendarCache stores some settings for calendar including the current time zone for the instances.
CalendarContract.CalendarCacheColumns
CalendarContract.CalendarColumns	Columns specific to the Calendars Uri that other Uris can query.
CalendarContract.CalendarEntity	Class that represents a Calendar Entity.
CalendarContract.Calendars	Constants and helpers for the Calendars table, which contains details for individual calendars.
CalendarContract.CalendarSyncColumns	Generic columns for use by sync adapters.
CalendarContract.Colors	Fields for accessing colors available for a given account.
CalendarContract.ColorsColumns
CalendarContract.EventDays	Fields and helpers for querying for a list of days that contain events.
CalendarContract.EventDaysColumns
CalendarContract.Events	Constants and helpers for the Events table, which contains details for individual events.
CalendarContract.EventsColumns	Columns from the Events table that other tables join into themselves.
CalendarContract.EventsEntity	Class that represents an Event Entity.
CalendarContract.ExtendedProperties	Fields for accessing the Extended Properties.
CalendarContract.ExtendedPropertiesColumns
CalendarContract.Instances	Fields and helpers for interacting with Instances.
CalendarContract.Reminders	Fields and helpers for accessing reminders for an event.
CalendarContract.RemindersColumns
CalendarContract.SyncColumns	Columns for Sync information used by Calendars and Events tables.
CalendarContract.SyncState	A table provided for sync adapters to use for storing private sync state data.
CalendarView	This class is a calendar widget for displaying and selecting dates.
CalendarView.OnDateChangeListener	The callback used to indicate the user changes the date.
Call	Represents an ongoing phone call that the in-call app should present to the user.
Call.Callback	Defines callbacks which inform the `InCallService` of changes to a `Call`.
Call.Details
Call.RttCall	A class that holds the state that describes the state of the RTT channel to the remote party, if it is active.
Callable<V>	A task that returns a result and may throw an exception.
CallableStatement	The interface used to execute SQL stored procedures.
CallAttributes	CallAttributes represents a set of properties that define a new Call.
CallAttributes.Builder	Build an instance of `CallAttributes`.
CallAudioState	Encapsulates the telecom audio state, including the current audio routing, supported audio routing and mute.
Callback	Implementations of this interface are passed to a `CallbackHandler`, allowing underlying security services the ability to interact with a calling application to retrieve specific authentication data such as usernames and passwords, or to display certain information, such as error and warning messages.
CallbackException	Exception passed to `UrlRequest.Callback.onFailed()` when `UrlRequest.Callback` or `UploadDataProvider` method throws an exception.
CallbackHandler	An application implements a `CallbackHandler` and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages.
CallControl	CallControl provides client side control of a call.
CallControlCallback	CallControlCallback relays call updates (that require a response) from the Telecom framework out to the application.This can include operations which the app must implement on a Call due to the presence of other calls on the device, requests relayed from a Bluetooth device, or from another calling surface.
CallEndpoint	Encapsulates the endpoint where call media can flow
CallEndpointException	This class represents a set of exceptions that can occur when requesting a `CallEndpoint` change.
CallEventCallback	CallEventCallback relays call updates (that do not require any action) from the Telecom framework out to the application.
CallException	This class defines exceptions that can be thrown when using Telecom APIs with `OutcomeReceiver`s.
CallingAppInfo	Information pertaining to the calling application, including the package name and a list of app signatures.
CallLog	The CallLog provider contains information about placed and received calls.
CallLog.Calls	Contains the recent calls.
CallLog.Locations	Table that contains information on location data sent via call composer.
CallRedirectionService	This service can be implemented to interact between Telecom and its implementor for making outgoing call with optional redirection/cancellation purposes.
CallScreeningService	This service can be implemented by the default dialer (see `TelecomManager#getDefaultDialerPackage()`) or a third party app to allow or disallow incoming calls before they are shown to a user.
CallScreeningService.CallResponse	Information about how to respond to an incoming call.
CallScreeningService.CallResponse.Builder
CallSite	A `CallSite` is a holder for a variable `MethodHandle`, which is called its `target`.
CamcorderProfile	Retrieves the predefined camcorder profile settings for camcorder applications.
Camera	A camera instance can be used to compute 3D transformations and generate a matrix that can be applied, for instance, on a `Canvas`.
Camera	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.Area	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.AutoFocusCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.AutoFocusMoveCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.CameraInfo	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.ErrorCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.Face	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.FaceDetectionListener	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.OnZoomChangeListener	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.Parameters	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.PictureCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.PreviewCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.ShutterCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.Size	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
CameraAccessException	`CameraAccessException` is thrown if a camera device could not be queried or opened by the `CameraManager`, or if the connection to an opened `CameraDevice` is no longer valid.
CameraCaptureSession	A configured capture session for a `CameraDevice`, used for capturing images from the camera or reprocessing images captured from the camera in the same session previously.
CameraCaptureSession.CaptureCallback	A callback object for tracking the progress of a `CaptureRequest` submitted to the camera device.
CameraCaptureSession.StateCallback	A callback object for receiving updates about the state of a camera capture session.
CameraCharacteristics	The properties describing a `CameraDevice`.
CameraCharacteristics.Key<T>	A `Key` is used to do camera characteristics field lookups with `CameraCharacteristics#get`.
CameraConstrainedHighSpeedCaptureSession	A constrained high speed capture session for a `CameraDevice`, used for capturing high speed images from the `CameraDevice` for high speed video recording use case.
CameraDevice	The CameraDevice class is a representation of a single camera connected to an Android device, allowing for fine-grain control of image capture and post-processing at high frame rates.
CameraDevice.CameraDeviceSetup	CameraDeviceSetup is a limited representation of `CameraDevice` that can be used to query device specific information which would otherwise need a CameraDevice instance.
CameraDevice.StateCallback	A callback objects for receiving updates about the state of a camera device.
CameraExtensionCharacteristics	Allows clients to query availability and supported resolutions of camera extensions.
CameraExtensionSession	A camera capture session that enables access to device-specific camera extensions, which often use multi-frame bursts and sophisticated post-process algorithms for image capture.
CameraExtensionSession.ExtensionCaptureCallback	A callback object for tracking the progress of a `CaptureRequest` submitted to the camera device.
CameraExtensionSession.StateCallback	A callback object for receiving updates about the state of a camera extension session.
CameraExtensionSession.StillCaptureLatency	Realtime calculated still `CameraExtensionSession.capture(CaptureRequest, Executor, ExtensionCaptureCallback)` latency.
CameraManager	A system service manager for detecting, characterizing, and connecting to `CameraDevices`.
CameraManager.AvailabilityCallback	A callback for camera devices becoming available or unavailable to open.
CameraManager.TorchCallback	A callback for camera flash torch modes becoming unavailable, disabled, or enabled.
CameraMetadata<TKey>	The base class for camera controls and information.
CameraOfflineSession	A camera capture session that was switched to offline mode via successful call to `CameraCaptureSession#switchToOffline`.
CameraOfflineSession.CameraOfflineSessionCallback
CameraPrewarmService	Extend this class to implement a camera prewarm service.
CameraProfile	The CameraProfile class is used to retrieve the pre-defined still image capture (jpeg) quality levels (0-100) used for low, medium, and high quality settings in the Camera application.
CancellationException	Exception indicating that the result of a value-producing task, such as a `FutureTask`, cannot be retrieved because the task was cancelled.
CancellationSignal	Provides the ability to cancel an operation in progress.
CancellationSignal.OnCancelListener	Listens for cancellation.
CancelledKeyException	Unchecked exception thrown when an attempt is made to use a selection key that is no longer valid.
Canvas	The Canvas class holds the "draw" calls.
Canvas.EdgeType	This enum was deprecated in API level 30. quickReject no longer uses this.
Canvas.VertexMode
Capability	Represents a capability that can be performed by an app, also known as App Action.
Capability	Immutable class to store the camera capability, its corresponding maximum streaming dimension and zoom range.
Capability.Builder	Builder class for `Capability`.
CapabilityParams	Represents the parameters and its matching names which can be associated with a `Capability`.
CapabilityParams.Builder	Builder class for `CapabilityParams`.
CaptioningManager	Contains methods for accessing and monitoring preferred video captioning state and visual properties.
CaptioningManager.CaptioningChangeListener	Listener for changes in captioning properties, including enabled state and user style preferences.
CaptioningManager.CaptionStyle	Specifies visual properties for video captions, including foreground and background colors, edge properties, and typeface.
CaptivePortal	A class allowing apps handling the `ConnectivityManager#ACTION_CAPTIVE_PORTAL_SIGN_IN` activity to indicate to the system different outcomes of captive portal sign in.
CaptureFailure	A report of failed capture for a single image capture from the image sensor.
CaptureRequest	An immutable package of settings and outputs needed to capture a single image from the camera device.
CaptureRequest.Builder	A builder for capture requests.
CaptureRequest.Key<T>	A `Key` is used to do capture request field lookups with `CaptureRequest#get` or to set fields with `CaptureRequest.Builder#set(Key, Object)`.
CaptureResult	The subset of the results of a single image capture from the image sensor.
CaptureResult.Key<T>	A `Key` is used to do capture result field lookups with `CaptureResult#get`.
CardEmulation	This class can be used to query the state of NFC card emulation services.
CarrierConfigManager	Provides access to telephony configuration values that are carrier-specific.
CarrierConfigManager.Apn	Configs used for APN setup.
CarrierConfigManager.Bsf	This groups the BSF (BootStrapping Function) related configs.
CarrierConfigManager.CarrierConfigChangeListener	Listener interface to get a notification when the carrier configurations have changed.
CarrierConfigManager.Gps	GPS configs.
CarrierConfigManager.Ims	Configs used by the IMS stack.
CarrierConfigManager.ImsEmergency	Emergency Call/E911.
CarrierConfigManager.ImsRtt	IMS RTT configs.
CarrierConfigManager.ImsServiceEntitlement	Configs used by ImsServiceEntitlement.
CarrierConfigManager.ImsSms	IMS SMS configs.
CarrierConfigManager.ImsSs	IMS supplementary services configs.
CarrierConfigManager.ImsVoice	IMS Voice configs.
CarrierConfigManager.ImsVt	IMS Video Telephony configs.
CarrierConfigManager.ImsWfc	WiFi Calling.
CarrierConfigManager.Iwlan	Configs used for epdg tunnel bring up.
CarrierIdentifier	Used to pass info to CarrierConfigService implementations so they can decide what values to return.
CarrierMessagingClientService	If the default SMS app has a service that extends this class, the system always tries to bind it so that the process is always running, which allows the app to have a persistent connection to the server.
CarrierMessagingService	A service that receives calls from the system when new SMS and MMS are sent or received.
CarrierMessagingService.ResultCallback<T>	A callback interface used to provide results asynchronously.
CarrierMessagingService.SendMmsResult	The result of sending an MMS.
CarrierMessagingService.SendMultipartSmsResult	The result of sending a multipart SMS.
CarrierMessagingService.SendSmsResult	The result of sending an SMS.
CarrierService	A service that exposes carrier-specific functionality to the system.
CaseMap	Low-level case mapping options and methods.
CaseMap.Fold	Case folding options and methods.
CaseMap.Lower	Lowercasing options and methods.
CaseMap.Title	Titlecasing options and methods.
CaseMap.Upper	Uppercasing options and methods.
CDATASection	CDATA sections are used to escape blocks of text containing characters that would otherwise be regarded as markup.
CdmaCellLocation	This class was deprecated in API level 31. use `CellIdentity`.
CellIdentity	CellIdentity represents the identity of a unique cell.
CellIdentityCdma	CellIdentity is to represent a unique CDMA cell
CellIdentityGsm	CellIdentity to represent a unique GSM cell
CellIdentityLte	CellIdentity is to represent a unique LTE cell
CellIdentityNr	Information to represent a unique NR(New Radio 5G) cell.
CellIdentityTdscdma	CellIdentity is to represent a unique TD-SCDMA cell
CellIdentityWcdma	CellIdentity to represent a unique UMTS cell
CellInfo	Immutable cell information from a point in time.
CellInfoCdma	A `CellInfo` representing a CDMA cell that provides identity and measurement info.
CellInfoGsm	A `CellInfo` representing a GSM cell that provides identity and measurement info.
CellInfoLte	A `CellInfo` representing an LTE cell that provides identity and measurement info.
CellInfoNr	A `CellInfo` representing an 5G NR cell that provides identity and measurement info.
CellInfoTdscdma	A `CellInfo` representing a TD-SCDMA cell that provides identity and measurement info.
CellInfoWcdma	A `CellInfo` representing a WCDMA cell that provides identity and measurement info.
CellLocation	This class was deprecated in API level 31. use `CellIdentity`.
CellSignalStrength	Abstract base class for cell phone signal strength related information.
CellSignalStrengthCdma	Signal strength related information.
CellSignalStrengthGsm	GSM signal strength related information.
CellSignalStrengthLte	LTE signal strength related information.
CellSignalStrengthNr	5G NR signal strength related information.
CellSignalStrengthTdscdma	Tdscdma signal strength related information.
CellSignalStrengthWcdma	Wcdma signal strength related information.
Certificate	This interface was deprecated in API level 3. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.cert.Certificate` and related classes.
Certificate	Abstract class for managing a variety of identity certificates.
Certificate	Abstract class for managing a variety of identity certificates.
Certificate.CertificateRep	Alternate Certificate class for serialization.
CertificateEncodingException	Certificate Encoding Exception.
CertificateEncodingException	Certificate Encoding Exception.
CertificateException	This exception indicates one of a variety of certificate problems.
CertificateException	This exception indicates one of a variety of certificate problems.
CertificateExpiredException	Certificate Expired Exception.
CertificateExpiredException	Certificate Expired Exception.
CertificateFactory	This class defines the functionality of a certificate factory, which is used to generate certificate, certification path (`CertPath`) and certificate revocation list (CRL) objects from their encodings.
CertificateFactorySpi	This class defines the Service Provider Interface (SPI) for the `CertificateFactory` class.
CertificateNotYetValidException	Certificate is not yet valid exception.
CertificateNotYetValidException	Certificate is not yet valid exception.
CertificateParsingException	Certificate Parsing Exception.
CertificateParsingException	Certificate Parsing Exception.
CertificateRevokedException	An exception that indicates an X.509 certificate is revoked.
CertPath	An immutable sequence of certificates (a certification path).
CertPath.CertPathRep	Alternate `CertPath` class for serialization.
CertPathBuilder	A class for building certification paths (also known as certificate chains).
CertPathBuilderException	An exception indicating one of a variety of problems encountered when building a certification path with a `CertPathBuilder`.
CertPathBuilderResult	A specification of the result of a certification path builder algorithm.
CertPathBuilderSpi	The Service Provider Interface (SPI) for the `CertPathBuilder` class.
CertPathChecker	Performs one or more checks on each `Certificate` of a `CertPath`.
CertPathParameters	A specification of certification path algorithm parameters.
CertPathTrustManagerParameters	A wrapper for CertPathParameters.
CertPathValidator	A class for validating certification paths (also known as certificate chains).
CertPathValidatorException	An exception indicating one of a variety of problems encountered when validating a certification path.
CertPathValidatorException.BasicReason	The BasicReason enumerates the potential reasons that a certification path of any type may be invalid.
CertPathValidatorException.Reason	The reason the validation algorithm failed.
CertPathValidatorResult	A specification of the result of a certification path validator algorithm.
CertPathValidatorSpi	The Service Provider Interface (SPI) for the `CertPathValidator` class.
CertSelector	A selector that defines a set of criteria for selecting `Certificate`s.
CertStore	A class for retrieving `Certificate`s and `CRL`s from a repository.
CertStoreException	An exception indicating one of a variety of problems retrieving certificates and CRLs from a `CertStore`.
CertStoreParameters	A specification of `CertStore` parameters.
CertStoreSpi	The Service Provider Interface (SPI) for the `CertStore` class.
CervicalMucusRecord	Captures the description of cervical mucus.
CervicalMucusRecord.Builder	Builder class for `CervicalMucusRecord`
CervicalMucusRecord.CervicalMucusAppearance	Identifier for Cervical Mucus Appearance
CervicalMucusRecord.CervicalMucusSensation	Identifier for Cervical Mucus Sensation
ChaCha20ParameterSpec	This class specifies the parameters used with the ChaCha20 algorithm.
ChangeBounds	This transition captures the layout bounds of target views before and after the scene change and animates those changes during the transition.
ChangeClipBounds	ChangeClipBounds captures the `View.getClipBounds()` before and after the scene change and animates those changes during the transition.
ChangedPackages	Packages that have been changed since the last time they were requested.
ChangeImageTransform	This Transition captures an ImageView's matrix before and after the scene change and animates it during the transition.
ChangeLogsRequest	Request class for `HealthConnectManager#getChangeLogs`
ChangeLogsRequest.Builder	Builder class for `ChangeLogsRequest`
ChangeLogsResponse	Response class for `HealthConnectManager#getChangeLogs` This is the response to clients fetching changes.
ChangeLogsResponse.DeletedLog	A change log holds the `Metadata#getId()` of a deleted Record.
ChangeLogTokenRequest	A class to request changelog token using `HealthConnectManager#getChangeLogToken`
ChangeLogTokenRequest.Builder	Builder for `ChangeLogTokenRequest`
ChangeLogTokenResponse	Response class for `HealthConnectManager#getChangeLogToken`}
ChangeScroll	This transition captures the scroll properties of targets before and after the scene change and animates any changes.
ChangeTransform	This Transition captures scale and rotation for Views before and after the scene change and animates those changes during the transition.
Channel	Instances of this class represent an ISO/IEC 7816-4 channel opened to a Secure Element.
Channel	A nexus for I/O operations.
Channels	Utility methods for channels and streams.
Character	The `Character` class wraps a value of the primitive type `char` in an object.
Character.Subset	Instances of this class represent particular subsets of the Unicode character set.
Character.UnicodeBlock	A family of character subsets representing the character blocks in the Unicode specification.
Character.UnicodeScript	A family of character subsets representing the character scripts defined in the Unicode Standard Annex #24: Script Names.
CharacterCodingException	Checked exception thrown when a character encoding or decoding error occurs.
CharacterData	The `CharacterData` interface extends Node with a set of attributes and methods for accessing character data in the DOM.
Characteristics	The characteristics of the Wi-Fi Aware implementation.
CharacterIterator	This interface defines a protocol for bidirectional iteration over text.
CharacterPickerDialog	Dialog for choosing accented characters related to a base character.
CharacterStyle	The classes that affect character-level text formatting extend this class.
CharArrayBuffer	This is used for `Cursor#copyStringToBuffer`
CharArrayReader	This class implements a character buffer that can be used as a character-input stream.
CharArrayWriter	This class implements a character buffer that can be used as an Writer.
CharBuffer	A char buffer.
CharConversionException	Base class for character conversion exceptions.
CharSequence	A `CharSequence` is a readable sequence of `char` values.
CharSequenceTransformation	Replaces a `TextView` child of a `CustomDescription` with the contents of one or more regular expressions (regexs).
CharSequenceTransformation.Builder	Builder for `CharSequenceTransformation` objects.
Charset	A named mapping between sequences of sixteen-bit Unicode code units and sequences of bytes.
CharsetDecoder	An engine that can transform a sequence of bytes in a specific charset into a sequence of sixteen-bit Unicode characters.
CharsetEncoder	An engine that can transform a sequence of sixteen-bit Unicode characters into a sequence of bytes in a specific charset.
CharsetProvider	Charset service-provider class.
Checkable	Defines an extension for views that make them checkable.
CheckBox	A checkbox is a specific type of two-states button that can be either checked or unchecked.
CheckBoxPreference	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
CheckedInputStream	An input stream that also maintains a checksum of the data being read.
CheckedOutputStream	An output stream that also maintains a checksum of the data being written.
CheckedTextView	An extension to `TextView` that supports the `Checkable` interface and displays.
Checksum	A typed checksum.
Checksum	An interface representing a data checksum.
ChildSaProposal	ChildSaProposal represents a proposed configuration to negotiate a Child SA.
ChildSaProposal.Builder	This class is used to incrementally construct a ChildSaProposal.
ChildSessionCallback	Callback interface for receiving state changes of a Child Session.
ChildSessionConfiguration	ChildSessionConfiguration represents the negotiated configuration for a Child Session.
ChildSessionConfiguration.Builder	This class can be used to incrementally construct a `ChildSessionConfiguration`.
ChildSessionParams	ChildSessionParams is an abstract class that represents proposed configurations for negotiating a Child Session.
ChineseCalendar	`ChineseCalendar` is a concrete subclass of `Calendar` that implements a traditional Chinese calendar.
ChoiceFormat	A `ChoiceFormat` allows you to attach a format to a range of numbers.
ChooserAction	A ChooserAction is an app-defined action that can be provided to the Android Sharesheet to be shown to the user when `Intent.ACTION_CHOOSER` is invoked.
ChooserAction.Builder	Builder class for `ChooserAction` objects
ChooserResult	An event reported to a supplied [IntentSender] by the system chooser when an activity is selected or other actions are taken to complete the session.
ChooserTarget	This class was deprecated in API level 30. For publishing direct share targets, please follow the instructions in https://developer.android.com/training/sharing/receive.html#providing-direct-share-targets instead.
ChooserTargetService	This class was deprecated in API level 30. For publishing direct share targets, please follow the instructions in https://developer.android.com/training/sharing/receive.html#providing-direct-share-targets instead.
Choreographer	Coordinates the timing of animations, input and drawing.
Choreographer.FrameCallback	Implement this interface to receive a callback when a new display frame is being rendered.
Choreographer.FrameData	The payload for `VsyncCallback` which includes frame information such as when the frame started being rendered, and multiple possible frame timelines and their information including deadline and expected present time.
Choreographer.FrameTimeline	Holds data that describes one possible VSync frame event to render at.
Choreographer.VsyncCallback	Implement this interface to receive a callback to start the next frame.
ChronoField	A standard set of fields.
ChronoLocalDate	A date without time-of-day or time-zone in an arbitrary chronology, intended for advanced globalization use cases.
ChronoLocalDateTime<D extends ChronoLocalDate>	A date-time without a time-zone in an arbitrary chronology, intended for advanced globalization use cases.
Chronology	A calendar system, used to organize and identify dates.
Chronometer	Class that implements a simple timer.
Chronometer.OnChronometerTickListener	A callback that notifies when the chronometer has incremented on its own.
ChronoPeriod	A date-based amount of time, such as '3 years, 4 months and 5 days' in an arbitrary chronology, intended for advanced globalization use cases.
ChronoUnit	A standard set of date periods units.
ChronoZonedDateTime<D extends ChronoLocalDate>	A date-time with a time-zone in an arbitrary chronology, intended for advanced globalization use cases.
Cipher	This class provides the functionality of a cryptographic cipher for encryption and decryption.
CipherInputStream	A CipherInputStream is composed of an InputStream and a Cipher so that read() methods return data that are read in from the underlying InputStream but have been additionally processed by the Cipher.
CipherOutputStream	A CipherOutputStream is composed of an OutputStream and a Cipher so that write() methods first process the data before writing them out to the underlying OutputStream.
CipherSpi	This class defines the Service Provider Interface (SPI) for the `Cipher` class.
CipherSuiteNotSupportedException	Thrown if trying to use a cipher suite which isn't supported.
CircularPropagation	A propagation that varies with the distance to the epicenter of the Transition or center of the scene if no epicenter exists.
CivicLocationKeys	Civic Address key types used to define address elements.
Class<T>	Instances of the class `Class` represent classes and interfaces in a running Java application.
ClassCastException	Thrown to indicate that the code has attempted to cast an object to a subclass of which it is not an instance.
ClassCircularityError	Thrown when the Java Virtual Machine detects a circularity in the superclass hierarchy of a class being loaded.
ClassFormatError	Thrown when the Java Virtual Machine attempts to read a class file and determines that the file is malformed or otherwise cannot be interpreted as a class file.
ClassLoader	A class loader is an object that is responsible for loading classes.
ClassNotFoundException	Thrown when an application tries to load in a class through its string name using: The `forName` method in class `Class`.
ClassValue<T>	Lazily associate a computed value with (potentially) every type.
Cleaner	`Cleaner` manages a set of object references and corresponding cleaning actions.
Cleaner.Cleanable	`Cleanable` represents an object and a cleaning action registered in a `Cleaner`.
ClearCredentialStateException	Represents an error encountered during the `CredentialManager#clearCredentialState(ClearCredentialStateRequest, CancellationSignal, Executor, OutcomeReceiver)` operation.
ClearCredentialStateRequest	A request class for clearing a user's credential state from the credential providers.
ClearCredentialStateRequest	A request class for clearing a user's credential state.
CleartextNetworkViolation
ClickableSpan	If an object of this type is attached to the text of a TextView with a movement method of LinkMovementMethod, the affected spans of text can be selected.
ClientCertRequest	ClientCertRequest: The user receives an instance of this class as a parameter of `WebViewClient#onReceivedClientCertRequest`.
ClientInfoStatus	Enumeration for status of the reason that a property could not be set via a call to `Connection.setClientInfo`
ClipboardManager	Interface to the clipboard service, for placing and retrieving text in the global clipboard.
ClipboardManager	This class was deprecated in API level 11. Old text-only interface to the clipboard. See `ClipboardManager` for the modern API.
ClipboardManager.OnPrimaryClipChangedListener	Defines a listener callback that is invoked when the primary clip on the clipboard changes.
ClipData	Representation of a clipped data on the clipboard.
ClipData.Item	Description of a single item in a ClipData.
ClipData.Item.Builder	A builder for a ClipData Item.
ClipDescription	Meta-data describing the contents of a `ClipData`.
ClipDrawable	A Drawable that clips another Drawable based on this Drawable's current level value.
Clob	The mapping in the Java^TM programming language for the SQL `CLOB` type.
Clock	A clock providing access to the current instant, date and time using a time-zone.
Cloneable	A class implements the `Cloneable` interface to indicate to the `Object.clone()` method that it is legal for that method to make a field-for-field copy of instances of that class.
CloneNotSupportedException	Thrown to indicate that the `clone` method in class `Object` has been called to clone an object, but that the object's class does not implement the `Cloneable` interface.
Closeable	A `Closeable` is a source or destination of data that can be closed.
ClosedByInterruptException	Checked exception received by a thread when another thread interrupts it while it is blocked in an I/O operation upon a channel.
ClosedChannelException	Checked exception thrown when an attempt is made to invoke or complete an I/O operation upon channel that is closed, or at least closed to that operation.
ClosedDirectoryStreamException	Unchecked exception thrown when an attempt is made to invoke an operation on a directory stream that is closed.
ClosedFileSystemException	Unchecked exception thrown when an attempt is made to invoke an operation on a file and the file system is closed.
ClosedSelectorException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a closed selector.
ClosedSubscriberGroupInfo	Information to represent a closed subscriber group.
ClosedWatchServiceException	Unchecked exception thrown when an attempt is made to invoke an operation on a watch service that is closed.
CloseGuard	CloseGuard is a mechanism for flagging implicit finalizer cleanup of resources that should have been cleaned up by explicit close methods (aka "explicit termination methods" in Effective Java).
CloudMediaProvider	Base class for a cloud media provider.
CloudMediaProvider.CloudMediaSurfaceController	Manages rendering the preview of media items on given instances of `Surface`.
CloudMediaProvider.CloudMediaSurfaceStateChangedCallback	This class is used by `CloudMediaProvider` to send `Surface` state updates to picker launched via `MediaStore#ACTION_PICK_IMAGES`.
CloudMediaProviderContract	Defines the contract between a cloud media provider and the OS.
CloudMediaProviderContract.AlbumColumns	Constants related to an album item, including `Cursor` column names
CloudMediaProviderContract.MediaCollectionInfo	Constants related to a media collection
CloudMediaProviderContract.MediaColumns	Constants related to a media item, including `Cursor` column names
CoderMalfunctionError	Error thrown when the `decodeLoop` method of a `CharsetDecoder`, or the `encodeLoop` method of a `CharsetEncoder`, throws an unexpected exception.
CoderResult	A description of the result state of a coder.
CodeSigner	This class encapsulates information about a code signer.
CodeSource	Legacy security code; do not use.
CodingErrorAction	A typesafe enumeration for coding-error actions.
CollapsibleActionView	When a `View` implements this interface it will receive callbacks when expanded or collapsed as an action view alongside the optional, app-specified callbacks to `OnActionExpandListener`.
CollationElementIterator	`CollationElementIterator` is an iterator created by a RuleBasedCollator to walk through a string.
CollationElementIterator	The `CollationElementIterator` class is used as an iterator to walk through each character of an international string.
CollationKey	A `CollationKey` represents a `String` under the rules of a specific `Collator` object.
CollationKey	A `CollationKey` represents a `String` under the rules of a specific `Collator` object.
CollationKey.BoundMode	Options that used in the API CollationKey.getBound() for getting a CollationKey based on the bound mode requested.
Collator	[icu enhancement] ICU's replacement for `Collator`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
Collator	The `Collator` class performs locale-sensitive `String` comparison.
Collator.ReorderCodes	Reordering codes for non-script groups that can be reordered under collation.
Collection<E>	The root interface in the collection hierarchy.
CollectionCertStoreParameters	Parameters used as input for the Collection `CertStore` algorithm.
Collections	This class consists exclusively of static methods that operate on or return collections.
Collector<T, A, R>	A mutable reduction operation that accumulates input elements into a mutable result container, optionally transforming the accumulated result into a final representation after all input elements have been processed.
Collector.Characteristics	Characteristics indicating properties of a `Collector`, which can be used to optimize reduction implementations.
Collectors	Implementations of `Collector` that implement various useful reduction operations, such as accumulating elements into collections, summarizing elements according to various criteria, etc.
Color	The `Color` class provides methods for creating, converting and manipulating colors.
ColorDrawable	A specialized Drawable that fills the Canvas with a specified color.
ColorFilter	A color filter can be used with a `Paint` to modify the color of each pixel drawn with that paint.
ColorMatrix	4x5 matrix for transforming the color and alpha components of a Bitmap.
ColorMatrixColorFilter	A color filter that transforms colors through a 4x5 color matrix.
ColorSpace	A `ColorSpace` is used to identify a specific organization of colors.
ColorSpace.Adaptation	List of adaptation matrices that can be used for chromatic adaptation using the von Kries transform.
ColorSpace.Connector	A connector transforms colors from a source color space to a destination color space.
ColorSpace.Model	A color model is required by a `ColorSpace` to describe the way colors can be represented as tuples of numbers.
ColorSpace.Named	List of common, named color spaces.
ColorSpace.RenderIntent	A render intent determines how a `connector` maps colors from one color space to another.
ColorSpace.Rgb	An RGB color space is an additive color space using the `RGB` color model (a color is therefore represented by a tuple of 3 numbers).
ColorSpace.Rgb.TransferParameters	Defines the parameters for the ICC parametric curve type 4, as defined in ICC.1:2004-10, section 10.15.
ColorSpaceProfiles	Immutable class with information about supported color space profiles.
ColorSpaceTransform	Immutable class for describing a 3x3 matrix of `Rational` values in row-major order.
ColorStateList	Lets you map `View` state sets to colors.
ColorStateListDrawable	A Drawable that manages a `ColorDrawable` to make it stateful and backed by a `ColorStateList`.
CombinedVibration	A CombinedVibration describes a combination of haptic effects to be performed by one or more `Vibrators`.
CombinedVibration.ParallelCombination	A combination of haptic effects that should be played in multiple vibrators in parallel.
CommandAction	A simple `ControlAction` indicating that the user has interacted with a `Control` created using a `StatelessTemplate`.
CommandRequest	A request for command from broadcast signal.
CommandResponse	A response for command from broadcast signal.
Comment	This interface inherits from `CharacterData` and represents the content of a comment, i.e., all the characters between the starting ' `<!--`' and ending '`-->`'.
CommonDataSource	Interface that defines the methods which are common between `DataSource`, `XADataSource` and `ConnectionPoolDataSource`.
CompactDecimalFormat	Formats numbers in compact (abbreviated) notation, like "1.2K" instead of "1200".
CompactDecimalFormat.CompactStyle	Style parameter for CompactDecimalFormat.
CompactNotation	A class that defines the scientific notation style to be used when formatting numbers in NumberFormatter.
CompanionDeviceManager	Public interfaces for managing companion devices.
CompanionDeviceManager.Callback	Callback for applications to receive updates about and the outcome of `AssociationRequest` issued via `associate()` call.
CompanionDeviceService	A service that receives calls from the system with device events.
CompanionException	`CompanionException` can be thrown during the companion system data transfer process.
Comparable<T>	This interface imposes a total ordering on the objects of each class that implements it.
Comparator<T>	A comparison function, which imposes a total ordering on some collection of objects.
ComparisonFailure	This class was deprecated in API level 16. use org.junit.ComparisonFailure
Compiler	Does nothing on Android.
CompletableFuture<T>	A `Future` that may be explicitly completed (setting its value and status), and may be used as a `CompletionStage`, supporting dependent functions and actions that trigger upon its completion.
CompletableFuture.AsynchronousCompletionTask	A marker interface identifying asynchronous tasks produced by `async` methods.
CompletionException	Exception thrown when an error or other exception is encountered in the course of completing a result or task.
CompletionHandler<V, A>	A handler for consuming the result of an asynchronous I/O operation.
CompletionInfo	Information about a single text completion that an editor has reported to an input method.
CompletionService<V>	A service that decouples the production of new asynchronous tasks from the consumption of the results of completed tasks.
CompletionStage<T>	A stage of a possibly asynchronous computation, that performs an action or computes a value when another CompletionStage completes.
ComponentCallbacks	The set of callback APIs that are common to all application components (`Activity`, `Service`, `ContentProvider`, and `Application`).
ComponentCallbacks2	Extended `ComponentCallbacks` interface with a new callback for finer-grained memory management.
ComponentCaller	Represents the app that launched the component.
ComponentInfo	Base class containing information common to all application components (`ActivityInfo`, `ServiceInfo`).
ComponentName	Identifier for a specific application component (`Activity`, `Service`, `BroadcastReceiver`, or `ContentProvider`) that is available.
ComposePathEffect
ComposeShader	A subclass of shader that returns the composition of two other shaders, combined by an `Xfermode` subclass.
CompoundButton	A button with two states, checked and unchecked.
CompoundButton.OnCheckedChangeListener	Interface definition for a callback to be invoked when the checked state of a compound button changed.
ConcurrentHashMap<K, V>	A hash table supporting full concurrency of retrievals and high expected concurrency for updates.
ConcurrentHashMap.KeySetView<K, V>	A view of a ConcurrentHashMap as a `Set` of keys, in which additions may optionally be enabled by mapping to a common value.
ConcurrentLinkedDeque<E>	An unbounded concurrent deque based on linked nodes.
ConcurrentLinkedQueue<E>	An unbounded thread-safe queue based on linked nodes.
ConcurrentMap<K, V>	A `Map` providing thread safety and atomicity guarantees.
ConcurrentModificationException	This exception may be thrown by methods that have detected concurrent modification of an object when such modification is not permissible.
ConcurrentNavigableMap<K, V>	A `ConcurrentMap` supporting `NavigableMap` operations, and recursively so for its navigable sub-maps.
ConcurrentSkipListMap<K, V>	A scalable concurrent `ConcurrentNavigableMap` implementation.
ConcurrentSkipListSet<E>	A scalable concurrent `NavigableSet` implementation based on a `ConcurrentSkipListMap`.
Condition	The current condition of an `AutomaticZenRule`, provided by the app that owns the rule.
Condition	`Condition` factors out the `Object` monitor methods (`wait`, `notify` and `notifyAll`) into distinct objects to give the effect of having multiple wait-sets per object, by combining them with the use of arbitrary `Lock` implementations.
ConditionProviderService	This class was deprecated in API level 29. Instead of using an automatically bound service, use `NotificationManager.setAutomaticZenRuleState(String, Condition)` to tell the system about the state of your rule. In order to maintain a link from Settings to your rule configuration screens, provide a configuration activity that handles `NotificationManager.ACTION_AUTOMATIC_ZEN_RULE` on your `AutomaticZenRule` via `AutomaticZenRule.setConfigurationActivity(ComponentName)`.
ConditionVariable	Class that implements the condition variable locking paradigm.
Conference	Represents a conference call which can contain any number of `Connection` objects.
Conferenceable	Interface used to identify entities with which another entity can participate in a conference call with.
Config	This class was deprecated in API level 14. This class is not useful, it just returns the same value for all constants, and has always done this. Do not use it.
ConfigParser	Utility class for building PasspointConfiguration from an installation file.
Configuration	This class describes all device configuration information that can impact the resources the application retrieves.
ConfigurationInfo	Information you can retrieve about hardware configuration preferences declared by an application.
ConfigurationStats	Represents the usage statistics of a device `Configuration` for a specific time range.
ConfirmationAlreadyPresentingException	This exception is thrown when presenting a prompt fails because another prompt is already being presented.
ConfirmationCallback	Callback class used when signaling that a prompt is no longer being presented.
ConfirmationNotAvailableException	This exception is thrown when presenting a prompt fails because the environment lacks facilities for showing confirmations.
ConfirmationPrompt	Class used for displaying confirmation prompts.
ConfirmationPrompt.Builder	A builder that collects arguments, to be shown on the system-provided confirmation prompt.
ConnectEvent	A class that represents a TCP connect event initiated through the standard network stack.
ConnectException	Signals that an error occurred while attempting to connect a socket to a remote address and port.
Connection	Represents a phone call or connection to a remote endpoint that carries voice and/or video traffic.
Connection	A connection (session) with a specific database.
Connection.RttModifyStatus	Provides constants to represent the results of responses to session modify requests sent via `Call#sendRttRequest()`
Connection.RttTextStream	Provides methods to read and write RTT data to/from the in-call app.
Connection.VideoProvider	Provides a means of controlling the video session associated with a `Connection`.
ConnectionEvent	An `Event` object that provides information about the source of a connection-related event.
ConnectionEventListener	An object that registers to be notified of events generated by a `PooledConnection` object.
ConnectionlessHandwritingCallback	Interface to receive the result of starting a connectionless stylus handwriting session using one of `InputMethodManager#startConnectionlessStylusHandwriting(View, CursorAnchorInfo, Executor,ConnectionlessHandwritingCallback)`, `InputMethodManager.startConnectionlessStylusHandwritingForDelegation(android.view.View, android.view.inputmethod.CursorAnchorInfo, java.util.concurrent.Executor, android.view.inputmethod.ConnectionlessHandwritingCallback)`, or `InputMethodManager.startConnectionlessStylusHandwritingForDelegation(android.view.View, android.view.inputmethod.CursorAnchorInfo, java.lang.String, java.util.concurrent.Executor, android.view.inputmethod.ConnectionlessHandwritingCallback)`.
ConnectionMigrationOptions	A class configuring the HTTP connection migration functionality.
ConnectionMigrationOptions.Builder	Builder for `ConnectionMigrationOptions`.
ConnectionPendingException	Unchecked exception thrown when an attempt is made to connect a `SocketChannel` for which a non-blocking connection operation is already in progress.
ConnectionPoolDataSource	A factory for `PooledConnection` objects.
ConnectionRequest	Simple data container encapsulating a request to some entity to create a new `Connection`.
ConnectionService	An abstract service that should be implemented by any apps which either: Can make phone calls (VoIP or otherwise) and want those calls to be integrated into the built-in phone app.
ConnectivityDiagnosticsManager	Class that provides utilities for collecting network connectivity diagnostics information.
ConnectivityDiagnosticsManager.ConnectivityDiagnosticsCallback	Abstract base class for Connectivity Diagnostics callbacks.
ConnectivityDiagnosticsManager.ConnectivityReport	Class that includes connectivity information for a specific Network at a specific time.
ConnectivityDiagnosticsManager.DataStallReport	Class that includes information for a suspected data stall on a specific Network
ConnectivityManager	Class that answers queries about the state of network connectivity.
ConnectivityManager.NetworkCallback	Base class for `NetworkRequest` callbacks.
ConnectivityManager.OnNetworkActiveListener	Callback for use with `ConnectivityManager#addDefaultNetworkActiveListener` to find out when the system default network has gone in to a high power state.
ConnectTimeoutException	This class was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
Console	Methods to access the character-based console device, if any, associated with the current Java virtual machine.
ConsoleHandler	This `Handler` publishes log records to `System.err`.
ConsoleMessage	Public class representing a JavaScript console message from WebCore.
ConsoleMessage.MessageLevel
ConstantCallSite	A `ConstantCallSite` is a `CallSite` whose target is permanent, and can never be changed.
ConstrainedFieldPosition	Represents a span of a string containing a given field.
Constructor<T>	`Constructor` provides information about, and access to, a single constructor for a class.
Consumer<T>	Represents an operation that accepts a single input argument and returns no result.
ConsumerIrManager	Class that operates consumer infrared on the device.
ConsumerIrManager.CarrierFrequencyRange	Represents a range of carrier frequencies (inclusive) on which the infrared transmitter can transmit
Contacts	This class was deprecated in API level 5. The APIs have been superseded by `ContactsContract`. The newer APIs allow access multiple accounts and support aggregation of similar contacts. These APIs continue to work but will only return data for the first Google account created, which matches the original behavior.
Contacts.ContactMethods	This class was deprecated in API level 5. see `ContactsContract`
Contacts.ContactMethodsColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Extensions	This class was deprecated in API level 5. see `ContactsContract`
Contacts.ExtensionsColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.GroupMembership	This class was deprecated in API level 5. see `ContactsContract`
Contacts.Groups	This class was deprecated in API level 5. see `ContactsContract`
Contacts.GroupsColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Intents	This class was deprecated in API level 5. see `ContactsContract`
Contacts.Intents.Insert	This class was deprecated in API level 5. see `ContactsContract`
Contacts.Intents.UI	This class was deprecated in API level 5. Do not use. This is not supported.
Contacts.OrganizationColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Organizations	This class was deprecated in API level 5. see `ContactsContract`
Contacts.People	This class was deprecated in API level 5. see `ContactsContract`
Contacts.People.ContactMethods	This class was deprecated in API level 5. see `ContactsContract`
Contacts.People.Extensions	This class was deprecated in API level 5. see `ContactsContract`
Contacts.People.Phones	This class was deprecated in API level 5. see `ContactsContract`
Contacts.PeopleColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Phones	This class was deprecated in API level 5. see `ContactsContract`
Contacts.PhonesColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Photos	This class was deprecated in API level 5. see `ContactsContract`
Contacts.PhotosColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.PresenceColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Settings	This class was deprecated in API level 5. see `ContactsContract`
Contacts.SettingsColumns	This interface was deprecated in API level 5. see `ContactsContract`
ContactsContract	The contract between the contacts provider and applications.
ContactsContract.AggregationExceptions	Constants for the contact aggregation exceptions table, which contains aggregation rules overriding those used by automatic aggregation.
ContactsContract.BaseSyncColumns	Generic columns for use by sync adapters.
ContactsContract.CommonDataKinds	Container for definitions of common data types stored in the `ContactsContract.Data` table.
ContactsContract.CommonDataKinds.BaseTypes	The base types that all "Typed" data kinds support.
ContactsContract.CommonDataKinds.Callable	Convenient functionalities for "callable" data.
ContactsContract.CommonDataKinds.CommonColumns	Columns common across the specific types.
ContactsContract.CommonDataKinds.Contactables	A special class of data items, used to refer to types of data that can be used to attempt to start communicating with a person (`Phone` and `Email`).
ContactsContract.CommonDataKinds.Email	A data kind representing an email address.
ContactsContract.CommonDataKinds.Event	A data kind representing an event.
ContactsContract.CommonDataKinds.GroupMembership	Group Membership.
ContactsContract.CommonDataKinds.Identity	A data kind representing an Identity related to the contact.
ContactsContract.CommonDataKinds.Im	This class was deprecated in API level 35. This field may not be well supported by some contacts apps and is discouraged to use.
ContactsContract.CommonDataKinds.Nickname	A data kind representing the contact's nickname.
ContactsContract.CommonDataKinds.Note	Notes about the contact.
ContactsContract.CommonDataKinds.Organization	A data kind representing an organization.
ContactsContract.CommonDataKinds.Phone	A data kind representing a telephone number.
ContactsContract.CommonDataKinds.Photo	A data kind representing a photo for the contact.
ContactsContract.CommonDataKinds.Relation	A data kind representing a relation.
ContactsContract.CommonDataKinds.SipAddress	This class was deprecated in API level 35. This field may not be well supported by some contacts apps and is discouraged to use.
ContactsContract.CommonDataKinds.StructuredName	A data kind representing the contact's proper name.
ContactsContract.CommonDataKinds.StructuredPostal	A data kind representing a postal addresses.
ContactsContract.CommonDataKinds.Website	A data kind representing a website related to the contact.
ContactsContract.ContactNameColumns	Contact name and contact name metadata columns in the RawContacts table.
ContactsContract.ContactOptionsColumns	Columns of `ContactsContract.Contacts` that track the user's preferences for, or interactions with, the contact.
ContactsContract.Contacts	Constants for the contacts table, which contains a record per aggregate of raw contacts representing the same person.
ContactsContract.Contacts.AggregationSuggestions	A read-only sub-directory of a single contact aggregate that contains all aggregation suggestions (other contacts).
ContactsContract.Contacts.AggregationSuggestions.Builder	A convenience builder for aggregation suggestion content URIs.
ContactsContract.Contacts.Data	A sub-directory of a single contact that contains all of the constituent raw contact `ContactsContract.Data` rows.
ContactsContract.Contacts.Entity	A sub-directory of a contact that contains all of its `ContactsContract.RawContacts` as well as `ContactsContract.Data` rows.
ContactsContract.Contacts.Photo	A read-only sub-directory of a single contact that contains the contact's primary photo.
ContactsContract.ContactsColumns	Columns of `ContactsContract.Contacts` that refer to intrinsic properties of the contact, as opposed to the user-specified options found in `ContactOptionsColumns`.
ContactsContract.ContactStatusColumns
ContactsContract.Data	Constants for the data table, which contains data points tied to a raw contact.
ContactsContract.DataColumns	Columns in the Data table.
ContactsContract.DataColumnsWithJoins	Combines all columns returned by `ContactsContract.Data` table queries.
ContactsContract.DataUsageFeedback	This class was deprecated in API level 29. Contacts affinity information is no longer supported as of Android version `Build.VERSION_CODES.Q`. Both update and delete calls are always ignored.
ContactsContract.DataUsageStatColumns	Columns in the Data_Usage_Stat table
ContactsContract.DeletedContacts	Constants for the deleted contact table.
ContactsContract.DeletedContactsColumns
ContactsContract.Directory	A Directory represents a contacts corpus, e.g. Local contacts, Google Apps Global Address List or Corporate Global Address List.
ContactsContract.DisplayNameSources	Types of data used to produce the display name for a contact.
ContactsContract.DisplayPhoto	Helper class for accessing full-size photos by photo file ID.
ContactsContract.FullNameStyle	Constants for various styles of combining given name, family name etc into a full name.
ContactsContract.Groups	Constants for the groups table.
ContactsContract.GroupsColumns
ContactsContract.Intents	Contains helper classes used to create or manage `Intents` that involve contacts.
ContactsContract.Intents.Insert	Convenience class that contains string constants used to create contact `Intents`.
ContactsContract.PhoneLookup	A table that represents the result of looking up a phone number, for example for caller ID.
ContactsContract.PhoneLookupColumns
ContactsContract.PhoneticNameStyle	Constants for various styles of capturing the pronunciation of a person's name.
ContactsContract.PinnedPositions	Contact-specific information about whether or not a contact has been pinned by the user at a particular position within the system contact application's user interface.
ContactsContract.Presence	This class was deprecated in API level 5. This old name was never meant to be made public. Do not use.
ContactsContract.PresenceColumns	Additional data mixed in with `StatusColumns` to link back to specific `ContactsContract.Data#_ID` entries.
ContactsContract.Profile	Constants for the user's profile data, which is represented as a single contact on the device that represents the user.
ContactsContract.ProfileSyncState	A table provided for sync adapters to use for storing private sync state data for the user's personal profile.
ContactsContract.ProviderStatus	API for inquiring about the general status of the provider.
ContactsContract.QuickContact	Helper methods to display QuickContact dialogs that display all the information belonging to a specific `Contacts` entry.
ContactsContract.RawContacts	Constants for the raw contacts table, which contains one row of contact information for each person in each synced account.
ContactsContract.RawContacts.Data	A sub-directory of a single raw contact that contains all of its `ContactsContract.Data` rows.
ContactsContract.RawContacts.DisplayPhoto	A sub-directory of a single raw contact that represents its primary display photo.
ContactsContract.RawContacts.Entity	A sub-directory of a single raw contact that contains all of its `ContactsContract.Data` rows.
ContactsContract.RawContactsColumns
ContactsContract.RawContactsEntity	Constants for the raw contacts entities table, which can be thought of as an outer join of the raw_contacts table with the data table.
ContactsContract.SearchSnippets	Additional column returned by `Contacts.CONTENT_FILTER_URI` explaining why the filter matched the contact.
ContactsContract.Settings	Contacts-specific settings for various `Account`'s.
ContactsContract.SettingsColumns
ContactsContract.SimAccount	A parcelable class encapsulating account data for contacts that originate from a SIM card.
ContactsContract.SimContacts	Class containing utility methods around determine what accounts in the ContactsProvider are related to the SIM cards in the device.
ContactsContract.StatusColumns	Social status update columns.
ContactsContract.StatusUpdates	A status update is linked to a `ContactsContract.Data` row and captures the user's latest status update via the corresponding source, e.g.
ContactsContract.SyncColumns	Columns that appear when each row of a table belongs to a specific account, including sync information that an account may need.
ContactsContract.SyncState	A table provided for sync adapters to use for storing private sync state data for contacts.
ContentCaptureCondition	Defines a condition for when content capture should be allowed.
ContentCaptureContext	Context associated with a `ContentCaptureSession` - see `ContentCaptureManager` for more info.
ContentCaptureContext.Builder	Builder for `ContentCaptureContext` objects.
ContentCaptureManager	Provides additional ways for apps to integrate with the content capture subsystem.
ContentCaptureSession	Session used when notifying the Android system about events associated with views.
ContentCaptureSessionId	Identifier for a Content Capture session.
ContentHandler	The abstract class `ContentHandler` is the superclass of all classes that read an `Object` from a `URLConnection`.
ContentHandler	Receive notification of the logical content of a document.
ContentHandlerFactory	This interface defines a factory for content handlers.
ContentInfo	Holds all the relevant data for a request to `View#performReceiveContent`.
ContentInfo.Builder	Builder for `ContentInfo`.
ContentObservable	A specialization of `Observable` for `ContentObserver` that provides methods for sending notifications to a list of `ContentObserver` objects.
ContentObserver	Receives call backs for changes to content.
ContentProvider	Content providers are one of the primary building blocks of Android applications, providing content to applications.
ContentProvider.CallingIdentity	Opaque token representing the identity of an incoming IPC.
ContentProvider.PipeDataWriter<T>	Interface to write a stream of data to a pipe.
ContentProviderClient	The public interface object used to interact with a specific `ContentProvider`.
ContentProviderOperation	Represents a single operation to be performed as part of a batch of operations.
ContentProviderOperation.Builder	Used to add parameters to a `ContentProviderOperation`.
ContentProviderResult	Contains the result of the application of a `ContentProviderOperation`.
ContentQueryMap	Caches the contents of a cursor into a Map of String->ContentValues and optionally keeps the cache fresh by registering for updates on the content backing the cursor.
ContentResolver	This class provides applications access to the content model.
ContentResolver.MimeTypeInfo	Detailed description of a specific MIME type, including an icon and label that describe the type.
ContentUris	Utility methods useful for working with `Uri` objects that use the "content" (content://) scheme.
ContentUriWithoutPermissionViolation
ContentValues	This class is used to store a set of values that the `ContentResolver` can process.
Context	Interface to global information about an application environment.
Context.BindServiceFlags	Specific flags used for bindService() call, which encapsulates a 64 bits long integer.
ContextMenu	Extension of `Menu` for context menus providing functionality to modify the header of the context menu.
ContextMenu.ContextMenuInfo	Additional information regarding the creation of the context menu.
ContextParams	This class represents rules around how a context being created via `Context#createContext` should behave.
ContextParams.Builder	Builder for creating a `ContextParams`.
ContextThemeWrapper	A context wrapper that allows you to modify or replace the theme of the wrapped context.
ContextWrapper	Proxying implementation of Context that simply delegates all of its calls to another Context.
Control	Represents a physical object that can be represented by a `ControlTemplate` and whose properties may be modified through a `ControlAction`.
Control.StatefulBuilder	Builder class for `Control` that contains state information.
Control.StatelessBuilder	Builder class for `Control`.
ControlAction	An abstract action indicating a user interaction with a `Control`.
ControlButton	Button element for `ControlTemplate`.
ControlsProviderService	Service implementation allowing applications to contribute controls to the System UI.
ControlTemplate	An abstract input template for a `Control`.
ConversationAction	Represents the action suggested by a `TextClassifier` on a given conversation.
ConversationAction.Builder	Builder class to construct `ConversationAction`.
ConversationActions	Represents a list of actions suggested by a `TextClassifier` on a given conversation.
ConversationActions.Message	Represents a message in the conversation.
ConversationActions.Message.Builder	Builder class to construct a `Message`
ConversationActions.Request	A request object for generating conversation action suggestions.
ConversationActions.Request.Builder	Builder object to construct the `Request` object.
ConversationStatus
ConversationStatus.Builder
CookieHandler	A CookieHandler object provides a callback mechanism to hook up a HTTP state management policy implementation into the HTTP protocol handler.
CookieManager	Manages the cookies used by an application's `WebView` instances.
CookieManager	CookieManager provides a concrete implementation of `CookieHandler`, which separates the storage of cookies from the policy surrounding accepting and rejecting cookies.
CookiePolicy	CookiePolicy implementations decide which cookies should be accepted and which should be rejected.
CookieStore	A CookieStore object represents a storage for cookie.
CookieSyncManager	This class was deprecated in API level 21. The WebView now automatically syncs cookies as necessary. You no longer need to create or use the CookieSyncManager. To manually force a sync you can use the CookieManager method `CookieManager#flush` which is a synchronous replacement for `sync()`.
CopticCalendar	Implement the Coptic calendar system.
CopyOnWriteArrayList<E>	A thread-safe variant of `ArrayList` in which all mutative operations (`add`, `set`, and so on) are implemented by making a fresh copy of the underlying array.
CopyOnWriteArraySet<E>	A `Set` that uses an internal `CopyOnWriteArrayList` for all of its operations.
CopyOption	An object that configures how to copy or move a file.
CoreConnectionPNames	This interface was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
CornerPathEffect
CorrectionInfo	Information about a single text correction that an editor has reported to an input method.
CountDownLatch	A synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes.
CountDownTimer	Schedule a countdown until a time in the future, with regular notifications on intervals along the way.
CountedCompleter<T>	A `ForkJoinTask` with a completion action performed when triggered and there are no remaining pending actions.
CpuUsageInfo	CPU usage information per core.
CRC32	A class that can be used to compute the CRC-32 of a data stream.
CRC32C	A class that can be used to compute the CRC-32C of a data stream.
CreateCredentialException	Represents an error encountered during the `CredentialManager#createCredential(Context, CreateCredentialRequest, CancellationSignal, Executor, OutcomeReceiver)` operation.
CreateCredentialRequest	A request to register a specific type of user credential, potentially launching UI flows to collect user consent and any other operation needed.
CreateCredentialRequest	Request for creating a credential.
CreateCredentialRequest.Builder	A builder for `CreateCredentialRequest`.
CreateCredentialResponse	A response object that encapsulates the result of a successful credential creation execution.
CreateEntry	An entry to be shown on the UI.
Credential	Represents a user credential that can be used to authenticate to your app.
Credential	Class representing Credential subtree in the PerProviderSubscription (PPS) Management Object (MO) tree.
Credential.CertificateCredential	Certificate based credential.
Credential.SimCredential	SIM (Subscriber Identify Module) based credential.
Credential.UserCredential	Username-password based credential.
CredentialDataRequest	An object representing a request for credential data.
CredentialDataRequest.Builder	A builder for `CredentialDataRequest`.
CredentialDataResult	An object that contains the result of retrieving data from a credential.
CredentialDataResult.Entries	A class for representing data elements returned.
CredentialDescription	Represents the type and contained data fields of a `Credential`.
CredentialEntry	A credential entry that is to be displayed on the account selector that is presented to the user.
CredentialManager	Manages user authentication flows.
CredentialOption	Information about a specific type of credential to be requested during a `CredentialManager.getCredential(Context, GetCredentialRequest, CancellationSignal, Executor, OutcomeReceiver)` operation.
CredentialOption.Builder	A builder for `CredentialOption`.
CredentialProtectedWhileLockedViolation	Subclass of `Violation` that is used when a process accesses filesystem paths stored in credential protected storage areas while the user is locked.
CredentialProviderService	Service to be extended by credential providers, in order to return user credentials to the framework.
Credentials	A class for representing UNIX credentials passed via ancillary data on UNIX domain sockets.
Criteria	This class was deprecated in API level 34. Criteria based APIs are deprecated because they cannot fully capture the complexity of location providers, and encourage bad development practices. Prefer to explicit select the location provider of interest (`LocationManager#FUSED_PROVIDER`, `etc`), rather than relying on Criteria.
CriticalNative	An ART runtime built-in optimization for `native` methods to speed up JNI transitions: Methods that are annotated with @`CriticalNative` use the fastest available JNI transitions from managed code to the native code and back.
CRL	This class is an abstraction of certificate revocation lists (CRLs) that have different formats but important common uses.
CRLException	CRL (Certificate Revocation List) Exception.
CRLReason	The CRLReason enumeration specifies the reason that a certificate is revoked, as defined in RFC 5280: Internet X.509 Public Key Infrastructure Certificate and CRL Profile.
CRLSelector	A selector that defines a set of criteria for selecting `CRL`s.
CrossProcessCursor	A cross process cursor is an extension of a `Cursor` that also supports usage from remote processes.
CrossProcessCursorWrapper	Cursor wrapper that implements `CrossProcessCursor`.
CrossProfileApps	Class for handling cross profile operations.
CryptoPrimitive	An enumeration of cryptographic primitives.
Currency	A class encapsulating a currency, as defined by ISO 4217.
Currency	Represents a currency.
Currency.CurrencyUsage	Currency Usage used for Decimal Format
CurrencyAmount	An amount of currency, consisting of a Number and a Currency.
CurrencyPluralInfo	This class represents the information needed by DecimalFormat to format currency plural, such as "3.00 US dollars" or "1.00 US dollar".
CurrencyPrecision	A class that defines a rounding strategy parameterized by a currency to be used when formatting numbers in NumberFormatter.
Cursor	This interface provides random read-write access to the result set returned by a database query.
CursorAdapter	Adapter that exposes data from a `Cursor` to a `ListView` widget.
CursorAnchorInfo	Positional information about the text insertion point and characters in the composition string.
CursorAnchorInfo.Builder	Builder for `CursorAnchorInfo`.
CursorIndexOutOfBoundsException	An exception indicating that a cursor is out of bounds.
CursorJoiner	Does a join on two cursors using the specified columns.
CursorJoiner.Result	The result of a call to next().
CursorLoader	This class was deprecated in API level 28. Use the Support Library `CursorLoader`
CursorTreeAdapter	An adapter that exposes data from a series of `Cursor`s to an `ExpandableListView` widget.
CursorWindow	A buffer containing multiple cursor rows.
CursorWindowAllocationException	This exception is thrown when a CursorWindow couldn't be allocated, most probably due to memory not being available.
CursorWrapper	Wrapper class for Cursor that delegates all calls to the actual cursor object.
CustomAudience	Represents the information necessary for a custom audience to participate in ad selection.
CustomAudience.Builder	Builder for `CustomAudience` objects.
CustomAudienceManager	CustomAudienceManager provides APIs for app and ad-SDKs to join / leave custom audiences.
CustomDescription	Defines a custom description for the autofill save UI.
CustomDescription.Builder	Builder for `CustomDescription` objects.
CustomPrinterIconCallback	Callback for `PrinterDiscoverySession#onRequestCustomPrinterIcon`.
CustomViolation
CycleInterpolator	Repeats the animation for a specified number of cycles.
CyclicBarrier	A synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point.
CyclingPedalingCadenceRecord	Captures the user's cycling pedaling cadence.
CyclingPedalingCadenceRecord.Builder	Builder class for `CyclingPedalingCadenceRecord`
CyclingPedalingCadenceRecord.CyclingPedalingCadenceRecordSample	Represents a single measurement of the cycling pedaling cadence.

D

DashPathEffect
DatabaseErrorHandler	An interface to let apps define an action to take when database corruption is detected.
DatabaseMetaData	Comprehensive information about the database as a whole.
DatabaseUtils	Static utility methods for dealing with databases and `Cursor`s.
DatabaseUtils.InsertHelper	This class was deprecated in API level 17. Use `SQLiteStatement` instead.
DataFailCause	DataFailCause collects data connection failure causes code from different sources.
DataFormatException	Signals that a data format error has occurred.
DatagramChannel	A selectable channel for datagram-oriented sockets.
DatagramPacket	This class represents a datagram packet.
DatagramSocket	This class represents a socket for sending and receiving datagram packets.
DatagramSocketImpl	Abstract datagram and multicast socket implementation base class.
DatagramSocketImplFactory	This interface defines a factory for datagram socket implementations.
DataInput	The `DataInput` interface provides for reading bytes from a binary stream and reconstructing from them data in any of the Java primitive types.
DataInputStream	A data input stream lets an application read primitive Java data types from an underlying input stream in a machine-independent way.
DataOrigin	Specifies the contributing source/application of any `Record`
DataOrigin.Builder
DataOutput	The `DataOutput` interface provides for converting data from any of the Java primitive types to a series of bytes and writing these bytes to a binary stream.
DataOutputStream	A data output stream lets an application write primitive Java data types to an output stream in a portable way.
DataRemovalRequest	Class used by apps to request the content capture service to remove data associated with `LocusIds`.
DataRemovalRequest.Builder	Builder for `DataRemovalRequest` objects.
DataRemovalRequest.LocusIdRequest	Representation of a request to remove data associated with a `LocusId`.
Dataset	A `Dataset` object represents a group of fields (key / value pairs) used to autofill parts of a screen.
Dataset.Builder	A builder for `Dataset` objects.
DataSetObservable	A specialization of `Observable` for `DataSetObserver` that provides methods for sending notifications to a list of `DataSetObserver` objects.
DataSetObserver	Receives call backs when a data set has been changed, or made invalid.
DataShareRequest	Container class representing a request to share data with Content Capture service.
DataShareWriteAdapter	Adapter class used by apps to share data with the Content Capture service.
DataSource	A factory for connections to the physical data source that this `DataSource` object represents.
DataSpace	DataSpace identifies three components of colors - standard (primaries), transfer and range.
DataTruncation	An exception thrown as a `DataTruncation` exception (on writes) or reported as a `DataTruncation` warning (on reads) when a data values is unexpectedly truncated for reasons other than its having execeeded `MaxFieldSize`.
DatatypeConfigurationException	Indicates a serious configuration error.
DatatypeConstants	Utility class to contain basic Datatype values as constants.
DatatypeConstants.Field	Type-safe enum class that represents six fields of the `Duration` class.
DatatypeFactory	Factory that creates new `javax.xml.datatype` `Object`s that map XML to/from Java `Object`s.
Date	A thin wrapper around a millisecond value that allows JDBC to identify this as an SQL `DATE` value.
Date	The class `Date` represents a specific instant in time, with millisecond precision.
DateFormat	[icu enhancement] ICU's replacement for `DateFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
DateFormat	Utility class for producing strings with formatted date/time.
DateFormat	`DateFormat` is an abstract class for date/time formatting subclasses which formats and parses dates or time in a language-independent manner.
DateFormat.BooleanAttribute	boolean attributes
DateFormat.Field	The instances of this inner class are used as attribute keys and values in AttributedCharacterIterator that DateFormat.formatToCharacterIterator() method returns.
DateFormat.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `DateFormat.formatToCharacterIterator` and as field identifiers in `FieldPosition`.
DateFormat.HourCycle	Hour Cycle
DateFormatSymbols	[icu enhancement] ICU's replacement for `DateFormatSymbols`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
DateFormatSymbols	`DateFormatSymbols` is a public class for encapsulating localizable date-time formatting data, such as the names of the months, the names of the days of the week, and the time zone data.
DateInterval	This class represents date interval.
DateIntervalFormat	DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent manner.
DateIntervalFormat.FormattedDateInterval	An immutable class containing the result of a date interval formatting operation.
DateIntervalInfo	DateIntervalInfo is a public class for encapsulating localizable date time interval patterns.
DateIntervalInfo.PatternInfo	PatternInfo class saves the first and second part of interval pattern, and whether the interval pattern is earlier date first.
DateKeyListener	For entering dates in a text field.
DatePicker	Provides a widget for selecting a date.
DatePicker.OnDateChangedListener	The callback used to indicate the user changed the date.
DatePickerDialog	A simple dialog containing an `DatePicker`.
DatePickerDialog.OnDateSetListener	The listener used to indicate the user has finished selecting a date.
DateSorter	Sorts dates into the following groups: Today Yesterday seven days ago one month ago older than a month ago
DateTimeException	Exception used to indicate a problem while calculating a date-time.
DateTimeFormatter	Formatter for printing and parsing date-time objects.
DateTimeFormatterBuilder	Builder to create date-time formatters.
DateTimeKeyListener	For entering dates and times in the same text field.
DateTimeParseException	An exception thrown when an error occurs during parsing.
DateTimePatternGenerator	This class provides flexible generation of date format patterns, like "yy-MM-dd".
DateTimePatternGenerator.DisplayWidth	Field display name width constants for getFieldDisplayName
DateTimePatternGenerator.PatternInfo	PatternInfo supplies output parameters for addPattern(...).
DateTransformation	Replaces a `TextView` child of a `CustomDescription` with the contents of a field that is expected to have a `date value`.
DateUtils	This class contains various date-related utilities for creating text for things like elapsed time and date ranges, strings for days of the week and months, and AM/PM text etc.
DateValueSanitizer	Sanitizes a date `AutofillValue` using a `DateFormat`.
DayOfWeek	A day-of-week, such as 'Tuesday'.
DeadObjectException	The object you are calling has died, because its hosting process no longer exists, or there has been a low-level binder error.
DeadSystemException	The core Android system has died and is going through a runtime restart.
Debug	Provides various debugging methods for Android applications, including tracing and allocation counts.
Debug.InstructionCount	This class was deprecated in API level 23. Instruction counting is no longer supported.
Debug.MemoryInfo	This class is used to retrieved various statistics about the memory mappings for this process.
DebugUtils	Various utilities for debugging and logging.
DecelerateInterpolator	An interpolator where the rate of change starts out quickly and and then decelerates.
DecimalFormat	[icu enhancement] ICU's replacement for `DecimalFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
DecimalFormat	`DecimalFormat` is a concrete subclass of `NumberFormat` that formats decimal numbers.
DecimalFormatSymbols	[icu enhancement] ICU's replacement for `DecimalFormatSymbols`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
DecimalFormatSymbols	This class represents the set of symbols (such as the decimal separator, the grouping separator, and so on) needed by `DecimalFormat` to format numbers.
DecimalStyle	Localized decimal style used in date and time formatting.
DecisionLogic	Generic Decision logic that could be provided by the buyer or seller.
DeclHandler	SAX2 extension handler for DTD declaration events.
DefaultDatabaseErrorHandler	Default class used to define the action to take when database corruption is reported by sqlite.
DefaultHandler	Default base class for SAX2 event handlers.
DefaultHandler2	This class extends the SAX2 base handler class to support the SAX2 `LexicalHandler`, `DeclHandler`, and `EntityResolver2` extensions.
Deflater	This class provides support for general purpose compression using the popular ZLIB compression library.
DeflaterInputStream	Implements an input stream filter for compressing data in the "deflate" compression format.
DeflaterOutputStream	This class implements an output stream filter for compressing data in the "deflate" compression format.
Delayed	A mix-in style interface for marking objects that should be acted upon after a given delay.
DelayQueue<E extends Delayed>	An unbounded blocking queue of `Delayed` elements, in which an element can only be taken when its delay has expired.
DelegatedAdminReceiver	Base class for delegated apps to handle callbacks related to their delegated capabilities.
DelegateLastClassLoader	A `ClassLoader` implementation that implements a delegate last lookup policy.
DeleteGesture	A sub-class of `HandwritingGesture` for deleting an area of text using single rectangle.
DeleteGesture.Builder	Builder for `DeleteGesture`.
DeleteRangeGesture	A subclass of `HandwritingGesture` for deleting a range of text by defining start and end rectangles.
DeleteRangeGesture.Builder	Builder for `DeleteRangeGesture`.
DeletionRequest	Deletion Request.
DeletionRequest.Builder	Builder for `DeletionRequest` objects.
DeniedByServerException	Exception thrown when the provisioning server or key server denies a certficate or license for a device.
Deprecated	A program element annotated `@Deprecated` is one that programmers are discouraged from using.
Deque<E>	A linear collection that supports element insertion and removal at both ends.
DESedeKeySpec	This class specifies a DES-EDE ("triple-DES") key.
DESKeySpec	This class specifies a DES key.
Destroyable	Objects such as credentials may optionally implement this interface to provide the capability to destroy its contents.
DestroyFailedException	Signals that a `destroy` operation failed.
Device	A physical device (such as phone, watch, scale, or chest strap) which captured associated health data point.
Device.Builder
DeviceAdminInfo	This class is used to specify meta information of a device administrator component.
DeviceAdminReceiver	Base class for implementing a device administration component.
DeviceAdminService	Base class for a service that device owner/profile owners can optionally have.
DeviceFilter<D extends Parcelable>	A filter for companion devices of type `D`
DeviceId	The response returned from `DeviceLockManager#getDeviceId` on success.
DeviceLockManager	Manager used to interact with the system device lock service.
DeviceNotAssociatedException	An exception for a case when a given device was not `associated` to the calling app.
DevicePolicyIdentifiers	Class containing identifiers for policy APIs in `DevicePolicyManager`, for example they will be passed in `PolicyUpdateReceiver#onPolicySetResult` and `PolicyUpdateReceiver#onPolicyChanged` to communicate updates of a certain policy back to the admin.
DevicePolicyManager	Manages device policy and restrictions applied to the user of the device or apps running on the device.
DevicePolicyManager.InstallSystemUpdateCallback	Callback used in `DevicePolicyManager.installSystemUpdate(ComponentName, Uri, Executor, InstallSystemUpdateCallback)` to indicate that there was an error while trying to install an update.
DevicePolicyManager.OnClearApplicationUserDataListener	Callback used in `DevicePolicyManager.clearApplicationUserData(ComponentName, String, Executor, OnClearApplicationUserDataListener)` to indicate that the clearing of an application's user data is done.
DevicePolicyResources	Class containing the required identifiers to update device management resources.
DevicePolicyResourcesManager	Class containing required APIs to set, reset, and get device policy related resources.
DeviceProductInfo	Product-specific information about the display or the directly connected device on the display chain.
DeviceStateSensorOrientationMap	Immutable class that maps the device fold state to sensor orientation.
DeviceStateSensorOrientationMap.Builder	Builds a DeviceStateSensorOrientationMap object.
DeviceTypes	Device types for `Control`.
DexClassLoader	A class loader that loads classes from `.jar` and `.apk` files containing a `classes.dex` entry.
DexFile	Loads DEX files.
DexFile.OptimizationInfo	Encapsulates information about the optimizations performed on a dex file.
DhcpInfo	A simple object for retrieving the results of a DHCP request.
DHGenParameterSpec	This class specifies the set of parameters used for generating Diffie-Hellman (system) parameters for use in Diffie-Hellman key agreement.
DHKey	The interface to a Diffie-Hellman key.
DHParameterSpec	This class specifies the set of parameters used with the Diffie-Hellman algorithm, as specified in PKCS #3: Diffie-Hellman Key-Agreement Standard.
DHPrivateKey	The interface to a Diffie-Hellman private key.
DHPrivateKeySpec	This class specifies a Diffie-Hellman private key with its associated parameters.
DHPublicKey	The interface to a Diffie-Hellman public key.
DHPublicKeySpec	This class specifies a Diffie-Hellman public key with its associated parameters.
DialerFilter	This class was deprecated in API level 26. Use a custom view or layout to handle this functionality instead
DialerKeyListener	For dialing-only text entry As for all implementations of `KeyListener`, this class is only concerned with hardware keyboards.
Dialog	Base class for Dialogs.
DialogFragment	This class was deprecated in API level 28. Use the Support Library `DialogFragment` for consistent behavior across all devices and access to Lifecycle.
DialogInterface	Interface that defines a dialog-type class that can be shown, dismissed, or canceled, and may have buttons that can be clicked.
DialogInterface.OnCancelListener	Interface used to allow the creator of a dialog to run some code when the dialog is canceled.
DialogInterface.OnClickListener	Interface used to allow the creator of a dialog to run some code when an item on the dialog is clicked.
DialogInterface.OnDismissListener	Interface used to allow the creator of a dialog to run some code when the dialog is dismissed.
DialogInterface.OnKeyListener	Interface definition for a callback to be invoked when a key event is dispatched to this dialog.
DialogInterface.OnMultiChoiceClickListener	Interface used to allow the creator of a dialog to run some code when an item in a multi-choice dialog is clicked.
DialogInterface.OnShowListener	Interface used to allow the creator of a dialog to run some code when the dialog is shown.
DialogPreference	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
Dictionary<K, V>	The `Dictionary` class is the abstract parent of any class, such as `Hashtable`, which maps keys to values.
DigestException	This is the generic Message Digest exception.
DigestInputStream	A transparent stream that updates the associated message digest using the bits going through the stream.
DigestOutputStream	A transparent stream that updates the associated message digest using the bits going through the stream.
DigitalClock	This class was deprecated in API level 17. It is recommended you use `TextClock` instead.
DigitsKeyListener	For digits-only text entry As for all implementations of `KeyListener`, this class is only concerned with hardware keyboards.
DirectAction	Represents an abstract action that can be perform on this app.
DirectAction.Builder	Builder for construction of DirectAction.
DirectoryIteratorException	Runtime exception thrown if an I/O error is encountered when iterating over the entries in a directory.
DirectoryNotEmptyException	Checked exception thrown when a file system operation fails because a directory is not empty.
DirectoryStream<T>	An object to iterate over the entries in a directory.
DirectoryStream.Filter<T>	An interface that is implemented by objects that decide if a directory entry should be accepted or filtered.
DisconnectCause	Describes the cause of a disconnected call.
DisconnectCause	Describes the cause of a disconnected call.
DiscoveryRequest	Encapsulates parameters for `NsdManager#discoverServices`.
DiscoveryRequest.Builder	The builder for creating new `DiscoveryRequest` objects.
DiscoverySession	A class representing a single publish or subscribe Aware session.
DiscoverySessionCallback	Base class for Aware session events callbacks.
DiscretePathEffect
DiskReadViolation
DiskWriteViolation
Display	Provides information about the size and density of a logical display.
Display.HdrCapabilities	Encapsulates the HDR capabilities of a given display.
Display.Mode	A mode supported by a given display.
DisplayContext	Display context settings.
DisplayContext.Type	Type values for DisplayContext
DisplayCutout	Represents the area of the display that is not functional for displaying content.
DisplayCutout.Builder	A Builder class to construct a DisplayCutout instance.
DisplayHash	The DisplayHash used to validate information about what was present on screen.
DisplayHashManager	Manages DisplayHash requests.
DisplayHashResultCallback	Use when calling `View#generateDisplayHash(String, Rect, Executor, DisplayHashResultCallback)`.
DisplayManager	Manages the properties of attached displays.
DisplayManager.DisplayListener	Listens for changes in available display devices.
DisplayMetrics	A structure describing general information about a display, such as its size, density, and font scaling.
DisplayOptions	Represents all the display options that are supported by CLDR such as grammatical case, noun class, ...
DisplayOptions.Builder	Responsible for building `DisplayOptions`.
DisplayOptions.Capitalization	Represents all the capitalization options.
DisplayOptions.DisplayLength	Represents all the display lengths.
DisplayOptions.GrammaticalCase	Represents all the grammatical cases that are supported by CLDR.
DisplayOptions.NameStyle	Represents all the name styles.
DisplayOptions.NounClass	Represents all the grammatical noun classes that are supported by CLDR.
DisplayOptions.PluralCategory	Standard CLDR plural category constants.
DisplayOptions.SubstituteHandling	Represents all the substitute handlings.
DisplayShape	A class representing the shape of a display.
DistanceRecord	Captures distance travelled by the user since the last reading.
DistanceRecord.Builder	Builder class for `DistanceRecord`
DngCreator	The `DngCreator` class provides functions to write raw pixel data as a DNG file.
DnsEvent	A class that represents a DNS lookup event initiated through the standard network stack.
DnsOptions	A class configuring the host resolution functionality.
DnsOptions.Builder	Builder for `DnsOptions`.
DnsOptions.StaleDnsOptions	A class configuring the stale DNS functionality.
DnsOptions.StaleDnsOptions.Builder	Builder for `StaleDnsOptions`.
DnsResolver	Dns resolver class for asynchronous dns querying Note that if a client sends a query with more than 1 record in the question section but the remote dns server does not support this, it may not respond at all, leading to a timeout.
DnsResolver.Callback<T>	Base interface for answer callbacks
DnsResolver.DnsException	Class to represent DNS error
DocTypeNotSupportedException	Thrown if trying to create a credential with an unsupported document type.
Document	The `Document` interface represents the entire HTML or XML document.
DocumentBuilder	Defines the API to obtain DOM Document instances from an XML document.
DocumentBuilderFactory	Defines a factory API that enables applications to obtain a parser that produces DOM object trees from XML documents.
DocumentChangeInfo	Contains information about an individual change detected by an `ObserverCallback`.
Documented	If the annotation `@Documented` is present on the declaration of an annotation interface A, then any `@A` annotation on an element is considered part of the element's public contract.
DocumentFragment	`DocumentFragment` is a "lightweight" or "minimal" `Document` object.
DocumentHandler	This interface was deprecated in API level 9. This interface has been replaced by the SAX2 `ContentHandler` interface, which includes Namespace support.
DocumentIdUtil	A util class with methods for working with document ids.
DocumentsContract	Defines the contract between a documents provider and the platform.
DocumentsContract.Document	Constants related to a document, including `Cursor` column names and flags.
DocumentsContract.Path	Holds a path from a document to a particular document under it.
DocumentsContract.Root	Constants related to a root of documents, including `Cursor` column names and flags.
DocumentsProvider	Base class for a document provider.
DocumentType	Each `Document` has a `doctype` attribute whose value is either `null` or a `DocumentType` object.
DomainCombiner	Legacy security code; do not use.
DomainLoadStoreParameter	Configuration data that specifies the keystores in a keystore domain.
DomainVerificationManager	System service to access domain verification APIs.
DomainVerificationUserState	Contains the user selection state for a package.
DOMConfiguration	The `DOMConfiguration` interface represents the configuration of a document and maintains a table of recognized parameters.
DOMError	`DOMError` is an interface that describes an error.
DOMErrorHandler	`DOMErrorHandler` is a callback interface that the DOM implementation can call when reporting errors that happens while processing XML data, or when doing some other processing (e.g. validating a document).
DOMException	DOM operations only raise exceptions in "exceptional" circumstances, i.e., when an operation is impossible to perform (either for logical reasons, because data is lost, or because the implementation has become unstable).
DOMImplementation	The `DOMImplementation` interface provides a number of methods for performing operations that are independent of any particular instance of the document object model.
DOMImplementationList	The `DOMImplementationList` interface provides the abstraction of an ordered collection of DOM implementations, without defining or constraining how this collection is implemented.
DOMImplementationLS	`DOMImplementationLS` contains the factory methods for creating Load and Save objects.
DOMImplementationSource	This interface permits a DOM implementer to supply one or more implementations, based upon requested features and versions, as specified in .
DOMLocator	Indicates the position of a node in a source DOM, intended primarily for error reporting.
DOMLocator	`DOMLocator` is an interface that describes a location (e.g.
DOMResult	Acts as a holder for a transformation result tree in the form of a Document Object Model (DOM) tree.
DOMSource	Acts as a holder for a transformation Source tree in the form of a Document Object Model (DOM) tree.
DOMStringList	The `DOMStringList` interface provides the abstraction of an ordered collection of `DOMString` values, without defining or constraining how this collection is implemented.
DosFileAttributes	File attributes associated with a file in a file system that supports legacy "DOS" attributes.
DosFileAttributeView	A file attribute view that provides a view of the legacy "DOS" file attributes.
Double	The `Double` class wraps a value of the primitive type `double` in an object.
Double2	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Double3	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Double4	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
DoubleAccumulator	One or more variables that together maintain a running `double` value updated using a supplied function.
DoubleAdder	One or more variables that together maintain an initially zero `double` sum.
DoubleBinaryOperator	Represents an operation upon two `double`-valued operands and producing a `double`-valued result.
DoubleBuffer	A double buffer.
DoubleConsumer	Represents an operation that accepts a single `double`-valued argument and returns no result.
DoubleFunction<R>	Represents a function that accepts a double-valued argument and produces a result.
DoublePredicate	Represents a predicate (boolean-valued function) of one `double`-valued argument.
DoubleStream	A sequence of primitive double-valued elements supporting sequential and parallel aggregate operations.
DoubleStream.Builder	A mutable builder for a `DoubleStream`.
DoubleStream.DoubleMapMultiConsumer	Represents an operation that accepts a `double`-valued argument and a DoubleConsumer, and returns no result.
DoubleSummaryStatistics	A state object for collecting statistics such as count, min, max, sum, and average.
DoubleSupplier	Represents a supplier of `double`-valued results.
DoubleToIntFunction	Represents a function that accepts a double-valued argument and produces an int-valued result.
DoubleToLongFunction	Represents a function that accepts a double-valued argument and produces a long-valued result.
DoubleUnaryOperator	Represents an operation on a single `double`-valued operand that produces a `double`-valued result.
DownloadableSubscription	Information about a subscription which is downloadable to an eUICC using `EuiccManager#downloadSubscription(DownloadableSubscription, boolean, PendingIntent)`
DownloadableSubscription.Builder
DownloadCompletedInput	The input data for `IsolatedWorker.onDownloadCompleted(android.adservices.ondevicepersonalization.DownloadCompletedInput, android.os.OutcomeReceiver)`.
DownloadCompletedOutput	The result returned by `IsolatedWorker.onDownloadCompleted(android.adservices.ondevicepersonalization.DownloadCompletedInput, android.os.OutcomeReceiver)`.
DownloadCompletedOutput.Builder	A builder for `DownloadCompletedOutput`
DownloadListener
DownloadManager	The download manager is a system service that handles long-running HTTP downloads.
DownloadManager.Query	This class may be used to filter download manager queries.
DownloadManager.Request	This class contains all the information necessary to request a new download.
DownloadProgressListener	A optional listener class used by download clients to track progress.
DownloadRequest	Describes a request to download files over cell-broadcast.
DownloadRequest.Builder
DownloadStatusListener	A optional listener class used by download clients to track progress.
DragAndDropPermissions	`DragAndDropPermissions` controls the access permissions for the content URIs associated with a `DragEvent`.
DragEvent	Represents an event that is sent out by the system at various times during a drag and drop operation.
Drawable	A Drawable is a general abstraction for "something that can be drawn." Most often you will deal with Drawable as the type of resource retrieved for drawing things to the screen; the Drawable class provides a generic API for dealing with an underlying visual resource that may take a variety of forms.
Drawable.Callback	Implement this interface if you want to create an animated drawable that extends `Drawable`.
Drawable.ConstantState	This abstract class is used by `Drawable`s to store shared constant state and data between Drawables.
DrawableContainer	A helper class that contains several `Drawable`s and selects which one to use.
DrawableContainer.DrawableContainerState	A ConstantState that can contain several `Drawable`s.
DrawableMarginSpan	A span which adds a drawable and a padding to the paragraph it's attached to.
DrawableWrapper	Drawable container with only one child element.
DrawFilter	A DrawFilter subclass can be installed in a Canvas.
DrbgParameters	This class specifies the parameters used by a DRBG (Deterministic Random Bit Generator).
DrbgParameters.Capability	The reseedable and prediction resistance capabilities of a DRBG.
DrbgParameters.Instantiation	DRBG parameters for instantiation.
DrbgParameters.NextBytes	DRBG parameters for random bits generation.
DrbgParameters.Reseed	DRBG parameters for reseed.
DreamService	Extend this class to implement a custom dream (available to the user as a "Daydream").
Driver	The interface that every driver class must implement.
Driver	SAX2 Driver that pulls events from XmlPullParser and converts them into SAX2 callbacks.
DriverManager	The basic service for managing a set of JDBC drivers.
DriverPropertyInfo	Driver properties for making a connection.
DrmConvertedStatus	This class was deprecated in API level 30. Please use `MediaDrm`
DrmErrorEvent	This class was deprecated in API level 30. Please use `MediaDrm`
DrmEvent	This class was deprecated in API level 30. Please use `MediaDrm`
DrmInfo	This class was deprecated in API level 30. Please use `MediaDrm`
DrmInfoEvent	This class was deprecated in API level 30. Please use `MediaDrm`
DrmInfoRequest	This class was deprecated in API level 30. Please use `MediaDrm`
DrmInfoStatus	This class was deprecated in API level 30. Please use `MediaDrm`
DrmInitData	Encapsulates initialization data required by a `MediaDrm` instance.
DrmInitData.SchemeInitData	Scheme initialization data.
DrmManagerClient	This class was deprecated in API level 30. Please use `MediaDrm`
DrmManagerClient.OnErrorListener	Interface definition for a callback that receives information about DRM framework errors.
DrmManagerClient.OnEventListener	Interface definition for a callback that receives information about DRM processing events.
DrmManagerClient.OnInfoListener	Interface definition for a callback that receives status messages and warnings during registration and rights acquisition.
DrmRights	This class was deprecated in API level 30. Please use `MediaDrm`
DrmStore	This class was deprecated in API level 30. Please use `MediaDrm`
DrmStore.Action	Defines actions that can be performed on rights-protected content.
DrmStore.ConstraintsColumns	Interface definition for the columns that represent DRM constraints.
DrmStore.DrmObjectType	Defines DRM object types.
DrmStore.Playback	Defines playback states for content.
DrmStore.RightsStatus	Defines status notifications for digital rights.
DrmSupportInfo	This class was deprecated in API level 30. Please use `MediaDrm`
DrmUtils	This class was deprecated in API level 30. Please use `MediaDrm`
DrmUtils.ExtendedMetadataParser	Utility that parses extended metadata embedded in DRM constraint information.
DropBoxManager	Enqueues chunks of data (from various sources -- application crashes, kernel log records, etc.).
DropBoxManager.Entry	A single entry retrieved from the drop box.
DSAGenParameterSpec	This immutable class specifies the set of parameters used for generating DSA parameters as specified in FIPS 186-3 Digital Signature Standard (DSS).
DSAKey	The interface to a DSA public or private key.
DSAKeyPairGenerator	An interface to an object capable of generating DSA key pairs.
DSAParameterSpec	This class specifies the set of parameters used with the DSA algorithm.
DSAParams	Interface to a DSA-specific set of key parameters, which defines a DSA key family.
DSAPrivateKey	The standard interface to a DSA private key.
DSAPrivateKeySpec	This class specifies a DSA private key with its associated parameters.
DSAPublicKey	The interface to a DSA public key.
DSAPublicKeySpec	This class specifies a DSA public key with its associated parameters.
DsmccRequest	A request for DSM-CC from broadcast signal.
DsmccResponse	A response for DSM-CC from broadcast signal.
DTDHandler	Receive notification of basic DTD-related events.
Dumpable	Represents an object whose state can be dumped into a `PrintWriter`.
DumpableContainer	Represents a container that manages `dumpables`.
DuplicateFormatFlagsException	Unchecked exception thrown when duplicate flags are provided in the format specifier.
Duration	A time-based amount of time, such as '34.5 seconds'.
Duration	Immutable representation of a time span as defined in the W3C XML Schema 1.0 specification.
DynamicDrawableSpan	Span that replaces the text it's attached to with a `Drawable` that can be aligned with the bottom or with the baseline of the surrounding text.
DynamicLayout	DynamicLayout is a text layout that updates itself as the text is edited.
DynamicLayout.Builder	Builder for dynamic layouts.
DynamicRangeProfiles	Immutable class with information about supported 10-bit dynamic range profiles.
DynamicsProcessing	DynamicsProcessing is an audio effect for equalizing and changing dynamic range properties of the sound.
DynamicsProcessing.BandBase	Base class for bands
DynamicsProcessing.BandStage	Base class for stages that hold bands
DynamicsProcessing.Channel	Class for Channel configuration parameters.
DynamicsProcessing.Config	Class for Config object, used by DynamicsProcessing to configure and update the audio effect.
DynamicsProcessing.Config.Builder
DynamicsProcessing.Eq	Class for Equalizer stage
DynamicsProcessing.EqBand	Class for Equalizer Bands Equalizer bands have three controllable parameters: enabled/disabled, cutoffFrequency and gain
DynamicsProcessing.Limiter	Class for Limiter Stage Limiter is a single band compressor at the end of the processing chain, commonly used to protect the signal from overloading and distortion.
DynamicsProcessing.Mbc	Class for Multi-Band Compressor (MBC) stage
DynamicsProcessing.MbcBand	Class for Multi-Band compressor bands MBC bands have multiple controllable parameters: enabled/disabled, cutoffFrequency, attackTime, releaseTime, ratio, threshold, kneeWidth, noiseGateThreshold, expanderRatio, preGain and postGain.
DynamicsProcessing.Stage	base class for the different stages.

E

E2eeContactKeysManager	E2eeContactKeysManager provides access to the provider of end-to-end encryption contact keys.
E2eeContactKeysManager.E2eeContactKey	A parcelable class encapsulating other users' end to end encrypted contact key.
E2eeContactKeysManager.E2eeSelfKey	A parcelable class encapsulating self end to end encrypted contact key.
EapAkaInfo	EapAkaInfo represents data provided by the server during EAP AKA authentication
EapAkaInfo.Builder	This class can be used to incrementally construct an `EapAkaInfo`.
EapInfo	EapInfo represents data provided by the server during EAP authentication
EapSessionConfig	EapSessionConfig represents a container for EAP method configuration.
EapSessionConfig.Builder	This class can be used to incrementally construct an `EapSessionConfig`.
EapSessionConfig.EapAkaConfig	EapAkaConfig represents the configs needed for an EAP AKA session.
EapSessionConfig.EapAkaOption	EapAkaOption represents optional configurations for EAP AKA authentication.
EapSessionConfig.EapAkaOption.Builder	This class can be used to incrementally construct an `EapAkaOption`.
EapSessionConfig.EapAkaPrimeConfig	EapAkaPrimeConfig represents the configs needed for an EAP-AKA' session.
EapSessionConfig.EapMethodConfig	EapMethodConfig represents a generic EAP method configuration.
EapSessionConfig.EapMsChapV2Config	EapMsChapV2Config represents the configs needed for an EAP MSCHAPv2 session.
EapSessionConfig.EapSimConfig	EapSimConfig represents the configs needed for an EAP SIM session.
EapSessionConfig.EapTtlsConfig	EapTtlsConfig represents the configs needed for an EAP-TTLS session.
EasyConnectStatusCallback	Easy Connect (DPP) Status Callback.
EasyEditSpan	Provides an easy way to edit a portion of text.
ECField	This interface represents an elliptic curve (EC) finite field.
ECFieldF2m	This immutable class defines an elliptic curve (EC) characteristic 2 finite field.
ECFieldFp	This immutable class defines an elliptic curve (EC) prime finite field.
ECGenParameterSpec	This immutable class specifies the set of parameters used for generating elliptic curve (EC) domain parameters.
ECKey	The interface to an elliptic curve (EC) key.
ECParameterSpec	This immutable class specifies the set of domain parameters used with elliptic curve cryptography (ECC).
ECPoint	This immutable class represents a point on an elliptic curve (EC) in affine coordinates.
ECPrivateKey	The interface to an elliptic curve (EC) private key.
ECPrivateKeySpec	This immutable class specifies an elliptic curve private key with its associated parameters.
ECPublicKey	The interface to an elliptic curve (EC) public key.
ECPublicKeySpec	This immutable class specifies an elliptic curve public key with its associated parameters.
EdDSAParameterSpec	A class used to specify EdDSA signature and verification parameters.
EdECKey	An interface for an elliptic curve public/private key as defined by RFC 8032: Edwards-Curve Digital Signature Algorithm (EdDSA).
EdECPoint	An elliptic curve point used to specify keys as defined by RFC 8032: Edwards-Curve Digital Signature Algorithm (EdDSA).
EdECPrivateKey	An interface for an elliptic curve private key as defined by RFC 8032: Edwards-Curve Digital Signature Algorithm (EdDSA).
EdECPrivateKeySpec	A class representing elliptic curve private keys as defined in RFC 8032: Edwards-Curve Digital Signature Algorithm (EdDSA), including the curve and other algorithm parameters.
EdECPublicKey	An interface for an elliptic curve public key as defined by RFC 8032: Edwards-Curve Digital Signature Algorithm (EdDSA).
EdECPublicKeySpec	A class representing elliptic curve public keys as defined in RFC 8032: Edwards-Curve Digital Signature Algorithm (EdDSA), including the curve and other algorithm parameters.
EdgeEffect	This class performs the graphical effect used at the edges of scrollable widgets when the user scrolls beyond the content bounds in 2D space.
Editable	This is the interface for text whose content and markup can be changed (as opposed to immutable text like Strings).
Editable.Factory	Factory used by TextView to create new `Editables`.
EditingEndedEvent	Event for an editing operation having ended.
EditingEndedEvent.Builder	Builder for `EditingEndedEvent`
EditingSession	Represents a session of media editing, for example, transcoding between formats, transmuxing or applying trimming or audio/video effects to a stream.
EditorBoundsInfo	Container of rectangular position related info for the Editor.
EditorBoundsInfo.Builder	Builder for `EditorBoundsInfo`.
EditorInfo	An EditorInfo describes several attributes of a text editing object that an input method is communicating with (typically an EditText), most importantly the type of text content it contains and the current cursor position.
Edits	Records lengths of string edits but not replacement text.
Edits.Iterator	Access to the list of edits.
EditText	A user interface element for entering and modifying text.
EditTextPreference	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
Effect	Effects are high-performance transformations that can be applied to image frames.
EffectContext	An EffectContext keeps all necessary state information to run Effects within a Open GL ES 2.0 context.
EffectFactory	The EffectFactory class defines the list of available Effects, and provides functionality to inspect and instantiate them.
EffectUpdateListener	Some effects may issue callbacks to inform the host of changes to the effect state.
EGL
EGL10
EGL11
EGL14	EGL 1.4
EGL15	EGL 1.5
EGLConfig	Wrapper class for native EGLConfig objects.
EGLConfig
EGLContext	Wrapper class for native EGLContext objects.
EGLContext
EGLDisplay	Wrapper class for native EGLDisplay objects.
EGLDisplay
EGLExt	EGL Extensions
EGLImage	Wrapper class for native EGLImage objects.
EGLObjectHandle	Base class for wrapped EGL objects.
EGLSurface	Wrapper class for native EGLSurface objects.
EGLSurface
EGLSync	Wrapper class for native EGLSync objects.
Element	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Element	An XML element.
Element	The `Element` interface represents an element in an HTML or XML document.
Element.Builder	Builder class for producing complex elements with matching field and name pairs.
Element.DataKind	The special interpretation of the data if required.
Element.DataType	DataType represents the basic type information for a basic element.
ElementListener	Listens for the beginning and ending of elements.
ElementType	The constants of this enumerated class provide a simple classification of the syntactic locations where annotations may appear in a Java program.
ElevationGainedRecord	Captures the elevation gained by the user since the last reading.
ElevationGainedRecord.Builder	Builder class for `ElevationGainedRecord`
EllipticCurve	This immutable class holds the necessary values needed to represent an elliptic curve.
EmbossMaskFilter
EmergencyNumber	A parcelable class that wraps and retrieves the information of number, service category(s) and country code for a specific emergency number.
EmojiConsistency	The set of emoji that should be drawn by the system with the default font for device consistency.
EmptyStackException	Thrown by methods in the `Stack` class to indicate that the stack is empty.
EncodedKeySpec	This class represents a public or private key in encoded format.
EncoderProfiles	Describes a set of encoding profiles for a given media (audio and/or video) profile.
EncoderProfiles.AudioProfile	Configuration for an audio encoder.
EncoderProfiles.VideoProfile	Configuration for a video encoder.
EncryptedPrivateKeyInfo	This class implements the `EncryptedPrivateKeyInfo` type as defined in PKCS #8.
EncryptedTopic	Encrypted form of `Topic`.
EndElementListener	Listens for the end of elements.
EndTextElementListener	Listens for the end of text elements.
Energy	Represents a unit of energy.
EnterpriseGlobalSearchSession	Provides a connection to the work profile's AppSearch databases that explicitly allow access from enterprise sessions.
Entity	A representation of a item using ContentValues.
Entity	This interface represents a known entity, either parsed or unparsed, in an XML document.
Entity.NamedContentValues
EntityIterator	A specialization of `Iterator` that allows iterating over a collection of `Entity` objects.
EntityReference	`EntityReference` nodes may be used to represent an entity reference in the tree.
EntityResolver	Basic interface for resolving entities.
EntityResolver2	Extended interface for mapping external entity references to input sources, or providing a missing external subset.
Enum<E extends Enum<E>>	This is the common base class of all Java language enumeration classes.
EnumConstantNotPresentException	Thrown when an application tries to access an enum constant by name and the enum type contains no constant with the specified name.
Enumeration<E>	An object that implements the Enumeration interface generates a series of elements, one at a time.
EnumMap<K extends Enum<K>, V>	A specialized `Map` implementation for use with enum type keys.
EnumSet<E extends Enum<E>>	A specialized `Set` implementation for use with enum types.
Environment	Provides access to environment variables.
EnvironmentalReverb	A sound generated within a room travels in many directions.
EnvironmentalReverb.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the EnvironmentalReverb when a parameter value has changed.
EnvironmentalReverb.Settings	The Settings class regroups all environmental reverb parameters.
EOFException	Signals that an end of file or end of stream has been reached unexpectedly during input.
EphemeralPublicKeyNotFoundException	Thrown if the ephemeral public key was not found in the session transcript passed to `IdentityCredential#getEntries(byte[], Map, byte[], byte[])`.
Equalizer	An Equalizer is used to alter the frequency response of a particular music source or of the main output mix.
Equalizer.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the Equalizer when a parameter value has changed.
Equalizer.Settings	The Settings class regroups all equalizer parameters.
Era	An era of the time-line.
ErrnoException	A checked exception thrown when `Os` methods fail.
Error	An `Error` is a subclass of `Throwable` that indicates serious problems that a reasonable application should not try to catch.
ErrorHandler	Basic interface for SAX error handlers.
ErrorListener	To provide customized error handling, implement this interface and use the `setErrorListener` method to register an instance of the implementation with the `Transformer`.
ErrorManager	ErrorManager objects can be attached to Handlers to process any error that occurs on a Handler during Logging.
ETC1	Methods for encoding and decoding ETC1 textures.
ETC1Util	Utility methods for using ETC1 compressed textures.
ETC1Util.ETC1Texture	A utility class encapsulating a compressed ETC1 texture.
EthernetNetworkSpecifier	A `NetworkSpecifier` used to identify ethernet interfaces.
EthiopicCalendar	Implement the Ethiopic calendar system.
EuiccInfo	Information about an eUICC chip/device.
EuiccManager	EuiccManager is the application interface to eUICCs, or eSIMs/embedded SIMs.
Event	Abstract class for metrics events.
EventInput	The input data for `IsolatedWorker.onEvent(android.adservices.ondevicepersonalization.EventInput, android.os.OutcomeReceiver)`.
EventListener	A tagging interface that all event listener interfaces must extend.
EventListenerProxy<T extends EventListener>	An abstract wrapper class for an `EventListener` class which associates a set of additional parameters with the listener.
EventLog	Access to the system diagnostic event record.
EventLog.Event	A previously logged event read from the logs.
EventLogRecord	Data to be logged in the EVENTS table.
EventLogRecord.Builder	A builder for `EventLogRecord`
EventLogTags	This class was deprecated in API level 9. This class is no longer functional. Use `EventLog` instead.
EventLogTags.Description
EventObject	The root class from which all event state objects shall be derived.
EventOutput	The result returned by `IsolatedWorker#onEvent(EventInput, android.os.OutcomeReceiver)`.
EventOutput.Builder	A builder for `EventOutput`
EventStats	Contains usage statistics for an event type for a specific time range.
EventUrlProvider	Generates event tracking URLs for a request.
Exception	The class `Exception` and its subclasses are a form of `Throwable` that indicates conditions that a reasonable application might want to catch.
ExceptionInInitializerError	Signals that an unexpected exception has occurred in a static initializer.
Exchanger<V>	A synchronization point at which threads can pair and swap elements within pairs.
Executable	A shared superclass for the common functionality of `Method` and `Constructor`.
ExecuteInput	The input data for `IsolatedWorker#onExecute(ExecuteInput, android.os.OutcomeReceiver)`.
ExecuteOutput	The result returned by `IsolatedWorker#onExecute(ExecuteInput, android.os.OutcomeReceiver)` in response to a call to `OnDevicePersonalizationManager#execute(ComponentName, PersistableBundle, java.util.concurrent.Executor, OutcomeReceiver)` from a client app.
ExecuteOutput.Builder	A builder for `ExecuteOutput`
ExecutionException	Exception thrown when attempting to retrieve the result of a task that aborted by throwing an exception.
Executor	An object that executes submitted `Runnable` tasks.
ExecutorCompletionService<V>	A `CompletionService` that uses a supplied `Executor` to execute tasks.
Executors	Factory and utility methods for `Executor`, `ExecutorService`, `ScheduledExecutorService`, `ThreadFactory`, and `Callable` classes defined in this package.
ExecutorService	An `Executor` that provides methods to manage termination and methods that can produce a `Future` for tracking progress of one or more asynchronous tasks.
ExemptionMechanism	This class provides the functionality of an exemption mechanism, examples of which are key recovery, key weakening, and key escrow.
ExemptionMechanismException	This is the generic ExemptionMechanism exception.
ExemptionMechanismSpi	This class defines the Service Provider Interface (SPI) for the `ExemptionMechanism` class.
ExerciseCompletionGoal	A goal which should be met to complete a `PlannedExerciseStep`.
ExerciseCompletionGoal.ActiveCaloriesBurnedGoal	An `ExerciseCompletionGoal` that requires a specified number of active calories to be burned.
ExerciseCompletionGoal.DistanceGoal	An `ExerciseCompletionGoal` that requires covering a specified distance.
ExerciseCompletionGoal.DistanceWithVariableRestGoal	An `ExerciseCompletionGoal` that requires covering a specified distance.
ExerciseCompletionGoal.DurationGoal	An `ExerciseCompletionGoal` that requires a specified duration to elapse.
ExerciseCompletionGoal.RepetitionsGoal	An `ExerciseCompletionGoal` that requires a specified number of repetitions to be completed.
ExerciseCompletionGoal.StepsGoal	An `ExerciseCompletionGoal` that requires completing a specified number of steps.
ExerciseCompletionGoal.TotalCaloriesBurnedGoal	An `ExerciseCompletionGoal` that requires a specified number of total calories to be burned.
ExerciseCompletionGoal.UnknownGoal	An `ExerciseCompletionGoal` that is unknown.
ExerciseCompletionGoal.UnspecifiedGoal	An `ExerciseCompletionGoal` that has no specific target metric.
ExerciseLap	Captures the time of a lap within exercise session.
ExerciseLap.Builder	Builder class for `ExerciseLap`
ExercisePerformanceGoal	A goal which should be aimed for during a `PlannedExerciseStep`.
ExercisePerformanceGoal.AmrapGoal	An `ExercisePerformanceGoal` that requires completing as many repetitions as possible.
ExercisePerformanceGoal.CadenceGoal	An `ExercisePerformanceGoal` that requires a target cadence range to be met during the associated `PlannedExerciseStep`.
ExercisePerformanceGoal.HeartRateGoal	An `ExercisePerformanceGoal` that requires a target heart rate range, in BPM, to be met during the associated `PlannedExerciseStep`.
ExercisePerformanceGoal.PowerGoal	An `ExercisePerformanceGoal` that requires a target power range to be met during the associated `PlannedExerciseStep`.
ExercisePerformanceGoal.RateOfPerceivedExertionGoal	An `ExercisePerformanceGoal` that requires a target RPE (rate of perceived exertion) to be met during the associated `PlannedExerciseStep`.
ExercisePerformanceGoal.SpeedGoal	An `ExercisePerformanceGoal` that requires a target speed range to be met during the associated `PlannedExerciseStep`.
ExercisePerformanceGoal.UnknownGoal	An `ExercisePerformanceGoal` that is unknown.
ExercisePerformanceGoal.WeightGoal	An `ExercisePerformanceGoal` that requires a target weight to be lifted during the associated `PlannedExerciseStep`.
ExerciseRoute	Route of the exercise session.
ExerciseRoute.Location	Point in the time and space.
ExerciseRoute.Location.Builder	Builder class for `Location`
ExerciseSegment	Represents particular exercise within exercise session (see `ExerciseSessionRecord`).
ExerciseSegment.Builder	Builder class for `ExerciseSegment`
ExerciseSegmentType	Identifier for exercise types, as returned by `ExerciseSegment#getSegmentType()`.
ExerciseSessionRecord	Captures exercise or a sequence of exercises.
ExerciseSessionRecord.Builder	Builder class for `ExerciseSessionRecord`
ExerciseSessionType	Identifier for exercise types, as returned by `ExerciseSessionRecord#getExerciseType()`.
ExifInterface	This is a class for reading and writing Exif tags in various image file formats.
ExpandableListActivity	This class was deprecated in API level 30. Use `RecyclerView` or use `ExpandableListView` directly
ExpandableListAdapter	An adapter that links a `ExpandableListView` with the underlying data.
ExpandableListView	A view that shows items in a vertically scrolling two-level list.
ExpandableListView.ExpandableListContextMenuInfo	Extra menu information specific to an `ExpandableListView` provided to the `View.OnCreateContextMenuListener.onCreateContextMenu(ContextMenu, View, ContextMenuInfo)` callback when a context menu is brought up for this AdapterView.
ExpandableListView.OnChildClickListener	Interface definition for a callback to be invoked when a child in this expandable list has been clicked.
ExpandableListView.OnGroupClickListener	Interface definition for a callback to be invoked when a group in this expandable list has been clicked.
ExpandableListView.OnGroupCollapseListener	Used for being notified when a group is collapsed
ExpandableListView.OnGroupExpandListener	Used for being notified when a group is expanded
ExplicitGcViolation	See #`StrictMode.ThreadPolicy.Builder.detectExplicitGc()`.
Explode	This transition tracks changes to the visibility of target views in the start and end scenes and moves views in or out from the edges of the scene.
ExtendedSSLSession	Extends the `SSLSession` interface to support additional session attributes.
Extension	This interface represents an X.509 extension.
ExtensionSessionConfiguration	A class that aggregates all supported arguments for `CameraExtensionSession` initialization.
Externalizable	Only the identity of the class of an Externalizable instance is written in the serialization stream and it is the responsibility of the class to save and restore the contents of its instances.
ExternalStorageStats	Shared/external storage statistics for a `UserHandle` on a single storage volume.
ExtractEditText	Specialization of `EditText` for showing and interacting with the extracted text in a full-screen input method.
ExtractedText	Information about text that has been extracted for use by an input method.
ExtractedTextRequest	Description of what an input method would like from an application when extract text from its input editor.

F

FabricatedOverlay	FabricatedOverlay describes the content of Fabricated Runtime Resource Overlay (FRRO) that is used to overlay the app's resources.
Face	Describes a face detected in an image.
Face.Builder	Builds a Face object.
FaceDetector	Identifies the faces of people in a `Bitmap` graphic object.
FaceDetector.Face	A Face contains all the information identifying the location of a face in a bitmap.
FactoryConfigurationError	Thrown when a problem with configuration with the Parser Factories exists.
FactoryResetProtectionPolicy	The factory reset protection policy determines which accounts can unlock a device that has gone through untrusted factory reset.
FactoryResetProtectionPolicy.Builder	Builder class for `FactoryResetProtectionPolicy` objects.
Fade	This transition tracks changes to the visibility of target views in the start and end scenes and fades views in or out when they become visible or non-visible.
FastNative	An ART runtime built-in optimization for `native` methods to speed up JNI transitions: Compared to normal `native` methods, `native` methods that are annotated with @`FastNative` use faster JNI transitions from managed code to the native code and back.
FeatureGroupInfo	A set of features that can be requested by an application.
FeatureInfo	Definition of a single optional hardware or software feature of an Android device.
FederatedComputeInput	The input data for `FederatedComputeScheduler#schedule`.
FederatedComputeInput.Builder	A builder for `FederatedComputeInput`
FederatedComputeScheduler	Handles scheduling federated compute jobs.
FederatedComputeScheduler.Params	The parameters related to job scheduling.
FetchAndJoinCustomAudienceRequest	The request object wrapping the required and optional parameters needed to fetch a `CustomAudience`.
FetchAndJoinCustomAudienceRequest.Builder	Builder for `FetchAndJoinCustomAudienceRequest` objects.
Field	This class is used to set all information of a field.
Field	A `Field` provides information about, and dynamic access to, a single field of a class or an interface.
Field.Builder	A builder for `Field`
FieldClassification	Represents a classified field from the detection service.
FieldClassification	Represents the field classification results for a given field.
FieldClassification.Match	Represents the score of a `UserData` entry for the field.
FieldPacker	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
FieldPosition	`FieldPosition` is a simple class used by `Format` and its subclasses to identify fields in formatted output.
File	An abstract representation of file and directory pathnames.
FileAlreadyExistsException	Checked exception thrown when an attempt is made to create a file or directory and a file of that name already exists.
FileAttribute<T>	An object that encapsulates the value of a file attribute that can be set atomically when creating a new file or directory by invoking the `createFile` or `createDirectory` methods.
FileAttributeView	An attribute view that is a read-only or updatable view of non-opaque values associated with a file in a filesystem.
FileBackupHelper	A helper class that can be used in conjunction with `BackupAgentHelper` to manage the backup of a set of files.
FileChannel	A channel for reading, writing, mapping, and manipulating a file.
FileChannel.MapMode	A typesafe enumeration for file-mapping modes.
FileDescriptor	Instances of the file descriptor class serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes.
FileFilter	A filter for abstract pathnames.
FileHandler	Simple file logging `Handler`.
FileInfo	Describes a single file that is available over MBMS.
FileInputStream	A `FileInputStream` obtains input bytes from a file in a file system.
FileIntegrityManager	This class provides access to file integrity related operations.
FileLock	A token representing a lock on a region of a file.
FileLockInterruptionException	Checked exception received by a thread when another thread interrupts it while it is waiting to acquire a file lock.
FilenameFilter	Instances of classes that implement this interface are used to filter filenames.
FileNameMap	A simple interface which provides a mechanism to map between a file name and a MIME type string.
FileNotFoundException	Signals that an attempt to open the file denoted by a specified pathname has failed.
FileObserver	Monitors files (using inotify) to fire an event after files are accessed or changed by any process on the device (including this one).
FileOutputStream	A file output stream is an output stream for writing data to a `File` or to a `FileDescriptor`.
FileOwnerAttributeView	A file attribute view that supports reading or updating the owner of a file.
FilePermission	Legacy security code; do not use.
FileReader	Reads text from character files using a default buffer size.
Files	This class consists exclusively of static methods that operate on files, directories, or other types of files.
FileServiceInfo	Describes a file service available from the carrier from which files can be downloaded via cell-broadcast.
FileStore	Storage for files.
FileStoreAttributeView	An attribute view that is a read-only or updatable view of the attributes of a `FileStore`.
FileSystem	Provides an interface to a file system and is the factory for objects to access files and other objects in the file system.
FileSystemAlreadyExistsException	Runtime exception thrown when an attempt is made to create a file system that already exists.
FileSystemException	Thrown when a file system operation fails on one or two files.
FileSystemLoopException	Checked exception thrown when a file system loop, or cycle, is encountered.
FileSystemNotFoundException	Runtime exception thrown when a file system cannot be found.
FileSystemProvider	Service-provider class for file systems.
FileSystems	Factory methods for file systems.
FileTime	Represents the value of a file's time stamp attribute.
FileTypeDetector	A file type detector for probing a file to guess its file type.
FileUriExposedException	The exception that is thrown when an application exposes a `file://` `Uri` to another app.
FileUriExposedViolation
FileUtils	Utility methods useful for working with files.
FileUtils.ProgressListener	Listener that is called periodically as progress is made.
FileVisitOption	Defines the file tree traversal options.
FileVisitor<T>	A visitor of files.
FileVisitResult	The result type of a `FileVisitor`.
FileWriter	Writes text to character files using a default buffer size.
FillCallback	`FillCallback` handles autofill requests from the `AutofillService` into the `Activity` being autofilled.
FillContext	This class represents a context for each fill request made via `AutofillService.onFillRequest(android.service.autofill.FillRequest, android.os.CancellationSignal, android.service.autofill.FillCallback)`.
FillEventHistory	Describes what happened after the last `AutofillService#onFillRequest(FillRequest, android.os.CancellationSignal, FillCallback)` call.
FillEventHistory.Event	Description of an event that occurred after the latest call to `FillCallback#onSuccess(FillResponse)`.
FillRequest	This class represents a request to an autofill service to interpret the screen and provide information to the system which views are interesting for saving and what are the possible ways to fill the inputs on the screen if applicable.
FillResponse	Response for an `AutofillService.onFillRequest(android.service.autofill.FillRequest, android.os.CancellationSignal, android.service.autofill.FillCallback)`.
FillResponse.Builder	Builder for `FillResponse` objects.
Filter	A filter constrains data with a filtering pattern.
Filter	A Filter can be used to provide fine grain control over what is logged, beyond the control provided by log levels.
Filter.FilterListener	Listener used to receive a notification upon completion of a filtering operation.
Filter.FilterResults	Holds the results of a filtering operation.
Filterable	Defines a filterable behavior.
FilterInputStream	A `FilterInputStream` contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterOutputStream	This class is the superclass of all classes that filter output streams.
FilterQueryProvider	This class can be used by external clients of CursorAdapter and CursorTreeAdapter to define how the content of the adapter should be filtered.
FilterReader	Abstract class for reading filtered character streams.
FilterWriter	Abstract class for writing filtered character streams.
FingerprintGestureController	An `AccessibilityService` can capture gestures performed on a device's fingerprint sensor, as long as the device has a sensor capable of detecting gestures.
FingerprintGestureController.FingerprintGestureCallback	Class that is called back when fingerprint gestures are being used for accessibility.
FingerprintManager	This class was deprecated in API level 28. See `BiometricPrompt` which shows a system-provided dialog upon starting authentication. In a world where devices may have different types of biometric authentication, it's much more realistic to have a system-provided authentication dialog since the method may vary by vendor/device.
FingerprintManager.AuthenticationCallback	This class was deprecated in API level 28. See `BiometricPrompt.AuthenticationCallback`
FingerprintManager.AuthenticationResult	This class was deprecated in API level 28. See `BiometricPrompt.AuthenticationResult`
FingerprintManager.CryptoObject	This class was deprecated in API level 28. See `BiometricPrompt.CryptoObject`
FlakyTest	This @interface was deprecated in API level 24. Use FlakyTest instead. New tests should be written using the Android Testing Support Library.
Float	The `Float` class wraps a value of primitive type `float` in an object.
Float2	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Float3	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Float4	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
FloatAction	Action sent by a `RangeTemplate`, `ToggleRangeTemplate`.
FloatArrayEvaluator	This evaluator can be used to perform type interpolation between `float[]` values.
FloatBuffer	A float buffer.
FloatEvaluator	This evaluator can be used to perform type interpolation between `float` values.
FloatMath	This class was deprecated in API level 22. Use `Math` instead.
FloatProperty<T>	An implementation of `Property` to be used specifically with fields of type `float`.
FloorsClimbedRecord	Captures the number of floors climbed by the user between the start and end time.
FloorsClimbedRecord.Builder	Builder class for `FloorsClimbedRecord`
Flow	Interrelated interfaces and static methods for establishing flow-controlled components in which `Publishers` produce items consumed by one or more `Subscribers`, each managed by a `Subscription`.
Flow.Processor<T, R>	A component that acts as both a Subscriber and Publisher.
Flow.Publisher<T>	A producer of items (and related control messages) received by Subscribers.
Flow.Subscriber<T>	A receiver of messages.
Flow.Subscription	Message control linking a `Publisher` and `Subscriber`.
Flushable	A `Flushable` is a destination of data that can be flushed.
FocusFinder	The algorithm used for finding the next focusable view in a given direction from a view that currently has focus.
Font	A font class can be used for creating FontFamily.
Font.Builder	A builder class for creating new Font.
FontFamily	A font family class can be used for creating Typeface.
FontFamily.Builder	A builder class for creating new FontFamily.
FontRequest	This class was deprecated in API level 31. Use the `FontRequest`
FontScaleConverter	A converter for non-linear font scaling.
FontsContract	This class was deprecated in API level 31. Use the Jetpack Core Library `FontsContractCompat` for consistent behavior across all devices.
FontsContract.Columns	This class was deprecated in API level 31. Use the `FontsContractCompat.Columns` for consistent behavior across all devices.
FontsContract.FontFamilyResult	This class was deprecated in API level 31. Use the `FontsContractCompat.FontFamilyResult` for consistent behavior across all devices
FontsContract.FontInfo	This class was deprecated in API level 31. Use the `FontsContractCompat.FontInfo` for consistent behavior across all devices
FontsContract.FontRequestCallback	This class was deprecated in API level 31. Use the `FontsContractCompat.FontRequestCallback` for consistent behavior across all devices
FontStyle	A font style object.
FontVariationAxis	Class that holds information about single font variation axis.
ForegroundColorSpan	Changes the color of the text to which the span is attached.
ForegroundServiceStartNotAllowedException	Exception thrown when an app tries to start a foreground `Service` when it's not allowed to do so.
ForegroundServiceTypeException	Base exception thrown when an app tries to start a foreground `Service` without a valid type.
ForkJoinPool	An `ExecutorService` for running `ForkJoinTask`s.
ForkJoinPool.ForkJoinWorkerThreadFactory	Factory for creating new `ForkJoinWorkerThread`s.
ForkJoinPool.ManagedBlocker	Interface for extending managed parallelism for tasks running in `ForkJoinPool`s.
ForkJoinTask<V>	Abstract base class for tasks that run within a `ForkJoinPool`.
ForkJoinWorkerThread	A thread managed by a `ForkJoinPool`, which executes `ForkJoinTask`s.
Format	`Format` is an abstract base class for formatting locale-sensitive information such as dates, messages, and numbers.
Format.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `Format.formatToCharacterIterator` and as field identifiers in `FieldPosition`.
FormatException
FormatFlagsConversionMismatchException	Unchecked exception thrown when a conversion and flag are incompatible.
FormatStyle	Enumeration of the style of a localized date, time or date-time formatter.
Formattable	The `Formattable` interface must be implemented by any class that needs to perform custom formatting using the `'s'` conversion specifier of `Formatter`.
FormattableFlags	FormattableFlags are passed to the `Formattable.formatTo()` method and modify the output format for Formattables.
FormattedNumber	The result of a number formatting operation.
FormattedNumberRange	The result of a number range formatting operation.
FormattedValue	An abstract formatted value: a string with associated field attributes.
Formatter	Utility class to aid in formatting common values that are not covered by the `Formatter` class in `java.util`
Formatter	An interpreter for printf-style format strings.
Formatter	A Formatter provides support for formatting LogRecords.
Formatter.BigDecimalLayoutForm	Enum for `BigDecimal` formatting.
FormatterClosedException	Unchecked exception thrown when the formatter has been closed.
FormEditRecord	Record of a form filling operation that has been executed on a single form field in a PDF.
FormEditRecord.Builder	Builder for `FormEditRecord`
FormWidgetInfo	Information about a form widget of a PDF document.
FormWidgetInfo.Builder	Builder for `FormWidgetInfo`
FractionPrecision	A class that defines a rounding strategy based on a number of fraction places and optionally significant digits to be used when formatting numbers in NumberFormatter.
Fragment	This class was deprecated in API level 28. Use the Jetpack Fragment Library `Fragment` for consistent behavior across all devices and access to Lifecycle.
Fragment.InstantiationException	This class was deprecated in API level 28. Use `Fragment.InstantiationException`
Fragment.SavedState	This class was deprecated in API level 28. Use `Fragment.SavedState`
FragmentBreadCrumbs	This class was deprecated in API level 21. This widget is no longer supported.
FragmentBreadCrumbs.OnBreadCrumbClickListener	This interface was deprecated in API level 28. This widget is no longer supported.
FragmentContainer	This class was deprecated in API level 28. Use the Support Library `FragmentContainer`.
FragmentController	This class was deprecated in API level 28. Use the Support Library `FragmentController`
FragmentHostCallback<E>	This class was deprecated in API level 28. Use the Support Library `FragmentHostCallback`
FragmentManager	This class was deprecated in API level 28. Use the Support Library `FragmentManager` for consistent behavior across all devices and access to Lifecycle.
FragmentManager.BackStackEntry	This interface was deprecated in API level 28. Use the Support Library `FragmentManager.BackStackEntry`
FragmentManager.FragmentLifecycleCallbacks	This class was deprecated in API level 28. Use the Support Library `FragmentManager.FragmentLifecycleCallbacks`
FragmentManager.OnBackStackChangedListener	This interface was deprecated in API level 28. Use the Support Library `FragmentManager.OnBackStackChangedListener`
FragmentManagerNonConfig	This class was deprecated in API level 28. Use the Support Library `FragmentManagerNonConfig`
FragmentTransaction	This class was deprecated in API level 28. Use the Support Library `FragmentTransaction`
FrameLayout	FrameLayout is designed to block out an area on the screen to display a single item.
FrameLayout.LayoutParams	Per-child layout information for layouts that support margins.
FrameMetrics	Class containing timing data for various milestones in a frame lifecycle reported by the rendering subsystem.
FrameStats	This is the base class for frame statistics.
Freezable<T>	Provides a flexible mechanism for controlling access, without requiring that a class be immutable.
FreezePeriod	A class that represents one freeze period which repeats annually.
FrequencyCapFilters	A container for the ad filters that are based on frequency caps.
FrequencyCapFilters.Builder	Builder for creating `FrequencyCapFilters` objects.
FullBackupDataOutput	Provides the interface through which a `BackupAgent` writes entire files to a full backup data set, via its `BackupAgent#onFullBackup(FullBackupDataOutput)` method.
Function<T, R>	Represents a function that accepts one argument and produces a result.
FunctionalInterface	An informative annotation type used to indicate that an interface type declaration is intended to be a functional interface as defined by the Java Language Specification.
Future<V>	A `Future` represents the result of an asynchronous computation.
FutureTask<V>	A cancellable asynchronous computation.

G

Gainmap	Gainmap represents a mechanism for augmenting an SDR image to produce an HDR one with variable display adjustment capability.
Gallery	This class was deprecated in API level 16. This widget is no longer supported. Other horizontally scrolling widgets include `HorizontalScrollView` and `ViewPager` from the support library.
Gallery.LayoutParams	Gallery extends LayoutParams to provide a place to hold current Transformation information along with previous position/transformation info.
GameManager	The GameManager allows system apps to modify and query the game mode of apps.
GameState	State of the game passed to the GameManager.
GatewayInfo	Encapsulated gateway address information for outgoing call.
GatheringByteChannel	A channel that can write bytes from a sequence of buffers.
GCMParameterSpec	Specifies the set of parameters required by a `Cipher` using the Galois/Counter Mode (GCM) mode.
GeneralSecurityException	The `GeneralSecurityException` class is a generic security exception class that provides type safety for all the security-related exception classes that extend from it.
Generated
GenericArrayType	`GenericArrayType` represents an array type whose component type is either a parameterized type or a type variable.
GenericDeclaration	A common interface for all entities that declare type variables.
GenericDocument	Represents a document unit.
GenericDocument.Builder<BuilderType extends GenericDocument.Builder<BuilderType>>	The builder class for `GenericDocument`.
GenericSignatureFormatError	Thrown when a syntactically malformed signature attribute is encountered by a reflective method that needs to interpret the generic signature information for a type, method or constructor.
Geocoder	A class for handling geocoding and reverse geocoding.
Geocoder.GeocodeListener	A listener for asynchronous geocoding results.
GeolocationPermissions	This class is used to manage permissions for the WebView's Geolocation JavaScript API.
GeolocationPermissions.Callback	A callback interface used by the host application to set the Geolocation permission state for an origin.
GeomagneticField	Estimates magnetic field at a given point on Earth, and in particular, to compute the magnetic declination from true north.
Gesture	A gesture is a hand-drawn shape on a touch screen.
GestureDescription	Accessibility services with the `R.styleable.AccessibilityService_canPerformGestures` property can dispatch gestures.
GestureDescription.Builder	Builder for a `GestureDescription`
GestureDescription.StrokeDescription	Immutable description of stroke that can be part of a gesture.
GestureDetector	Detects various gestures and events using the supplied `MotionEvent`s.
GestureDetector.OnContextClickListener	The listener that is used to notify when a context click occurs.
GestureDetector.OnDoubleTapListener	The listener that is used to notify when a double-tap or a confirmed single-tap occur.
GestureDetector.OnGestureListener	The listener that is used to notify when gestures occur.
GestureDetector.SimpleOnGestureListener	A convenience class to extend when you only want to listen for a subset of all the gestures.
GestureLibraries
GestureLibrary
GestureOverlayView	A transparent overlay for gesture input that can be placed on top of other widgets or contain other widgets.
GestureOverlayView.OnGestureListener
GestureOverlayView.OnGesturePerformedListener
GestureOverlayView.OnGesturingListener
GesturePoint	A timed point of a gesture stroke.
GestureStore	GestureLibrary maintains gesture examples and makes predictions on a new gesture
GestureStroke	A gesture stroke started on a touch down and ended on a touch up.
GestureUtils	Utility functions for gesture processing & analysis, including methods for: feature extraction (e.g., samplers and those for calculating bounding boxes and gesture path lengths); geometric transformation (e.g., translation, rotation and scaling); gesture similarity comparison (e.g., calculating Euclidean or Cosine distances between two gestures).
GetAdSelectionDataOutcome	Represents ad selection data collected from device for ad selection.
GetAdSelectionDataRequest	Represents a request containing the information to get ad selection data.
GetAdSelectionDataRequest.Builder	Builder for `GetAdSelectionDataRequest` objects.
GetByDocumentIdRequest	Encapsulates a request to retrieve documents by namespace and IDs from the `AppSearchSession` database.
GetByDocumentIdRequest.Builder	Builder for `GetByDocumentIdRequest` objects.
GetChars	Please implement this interface if your CharSequence has a getChars() method like the one in String that is faster than calling charAt() multiple times.
GetCredentialException	Represents an error encountered during the `CredentialManager#getCredential(Context, GetCredentialRequest, CancellationSignal, Executor, OutcomeReceiver)` operation.
GetCredentialRequest	A request to retrieve the user credential, potentially launching UI flows to let the user pick from different credential sources.
GetCredentialRequest	Request for getting user's credential from a given credential provider.
GetCredentialRequest.Builder	A builder for `GetCredentialRequest`.
GetCredentialResponse	A response object that encapsulates the credential successfully retrieved from the user.
GetSchemaResponse	The response class of `AppSearchSession#getSchema`
GetSchemaResponse.Builder	Builder for `GetSchemaResponse` objects.
GetTopicsRequest	Get Topics Request.
GetTopicsRequest.Builder	Builder for `GetTopicsRequest` objects.
GetTopicsResponse	Represent the result from the getTopics API.
GetTopicsResponse.Builder	Builder for `GetTopicsResponse` objects.
GetWalletCardsCallback	Handles response from the `QuickAccessWalletService` for `GetWalletCardsRequest`
GetWalletCardsError	Error response for an `GetWalletCardsRequest`.
GetWalletCardsRequest	Represents a request to a `QuickAccessWalletService` for `walletCards`.
GetWalletCardsResponse	The response for an `GetWalletCardsRequest` contains a list of wallet cards and the index of the card that should initially be displayed in the 'selected' position.
GL
GL10
GL10Ext
GL11
GL11Ext
GL11ExtensionPack
GLDebugHelper	A helper class for debugging OpenGL ES applications.
GLES10
GLES10Ext
GLES11
GLES11Ext
GLES20	OpenGL ES 2.0
GLES30	OpenGL ES 3.0
GLES31	OpenGL ES 3.1
GLES31Ext
GLES31Ext.DebugProcKHR
GLES32	OpenGL ES 3.2
GLES32.DebugProc
GLException	An exception class for OpenGL errors.
GlobalSearchSession	Provides a connection to all AppSearch databases the querying application has been granted access to.
GLSurfaceView	An implementation of SurfaceView that uses the dedicated surface for displaying OpenGL rendering.
GLSurfaceView.EGLConfigChooser	An interface for choosing an EGLConfig configuration from a list of potential configurations.
GLSurfaceView.EGLContextFactory	An interface for customizing the eglCreateContext and eglDestroyContext calls.
GLSurfaceView.EGLWindowSurfaceFactory	An interface for customizing the eglCreateWindowSurface and eglDestroySurface calls.
GLSurfaceView.GLWrapper	An interface used to wrap a GL interface.
GLSurfaceView.Renderer	A generic renderer interface.
GLU	A set of GL utilities inspired by the OpenGL Utility Toolkit.
GLUtils	Utility class to help bridging OpenGL ES and Android APIs.
GnssAntennaInfo	A class that contains information about a GNSS antenna.
GnssAntennaInfo.Builder	Builder class for GnssAntennaInfo.
GnssAntennaInfo.Listener	Used for receiving GNSS antenna info from the GNSS engine.
GnssAntennaInfo.PhaseCenterOffset	Class containing information about the antenna phase center offset (PCO).
GnssAntennaInfo.SphericalCorrections	Represents corrections on a spherical mapping.
GnssAutomaticGainControl	A class that contains GNSS Automatic Gain Control (AGC) information.
GnssAutomaticGainControl.Builder	Builder for `GnssAutomaticGainControl`
GnssCapabilities	GNSS chipset capabilities.
GnssCapabilities.Builder	Builder for GnssCapabilities.
GnssClock	A class containing a GNSS clock timestamp.
GnssMeasurement	A class representing a GNSS satellite measurement, containing raw and computed information.
GnssMeasurementRequest	This class contains extra parameters to pass in a GNSS measurement request.
GnssMeasurementRequest.Builder	Builder for `GnssMeasurementRequest`
GnssMeasurementsEvent	A class implementing a container for data associated with a measurement event.
GnssMeasurementsEvent.Builder	Builder for `GnssMeasurementsEvent`
GnssMeasurementsEvent.Callback	Used for receiving GNSS satellite measurements from the GNSS engine.
GnssNavigationMessage	A class containing a GNSS satellite Navigation Message.
GnssNavigationMessage.Callback	Used for receiving GNSS satellite Navigation Messages from the GNSS engine.
GnssSignalType	This class represents a GNSS signal type.
GnssStatus	This class represents the current state of the GNSS engine and is used in conjunction with `GnssStatus.Callback`.
GnssStatus.Builder	Builder class to help create new GnssStatus instances.
GnssStatus.Callback	Used for receiving notifications when GNSS events happen.
GpsSatellite	This class was deprecated in API level 24. use `GnssStatus` and `GnssStatus.Callback`.
GpsStatus	This class was deprecated in API level 24. Use `GnssStatus` instead.
GpsStatus.Listener	This interface was deprecated in API level 24. Use `GnssStatus.Callback` instead.
GpsStatus.NmeaListener	This interface was deprecated in API level 24. use `OnNmeaMessageListener` instead.
GradientDrawable	A Drawable with a color gradient for buttons, backgrounds, etc.
GradientDrawable.Orientation	Controls how the gradient is oriented relative to the drawable's bounds
GrammaticalInflectionManager	This class allow applications to control granular grammatical inflection settings (such as per-app grammatical gender).
GraphemeClusterSegmentFinder	Implementation of `SegmentFinder` using grapheme clusters as the text segment.
Gravity	Standard constants and tools for placing an object within a potentially larger container.
GregorianCalendar	[icu enhancement] ICU's replacement for `GregorianCalendar`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
GregorianCalendar	`GregorianCalendar` is a concrete subclass of `Calendar` and provides the standard calendar system used by most of the world.
GridLayout	A layout that places its children in a rectangular grid.
GridLayout.Alignment	Alignments specify where a view should be placed within a cell group and what size it should be.
GridLayout.LayoutParams	Layout information associated with each of the children of a GridLayout.
GridLayout.Spec	A Spec defines the horizontal or vertical characteristics of a group of cells.
GridLayoutAnimationController	A layout animation controller is used to animated a grid layout's children.
GridLayoutAnimationController.AnimationParameters	The set of parameters that has to be attached to each view contained in the view group animated by the grid layout animation controller.
GridView	A view that shows items in two-dimensional scrolling grid.
Group	This interface was deprecated in API level 33. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.Policy` and related classes since 1.2.
GroupCall	Class used to represent a single MBMS group call.
GroupCallCallback	A callback class for use when the application is in a group call.
GroupPrincipal	A `UserPrincipal` representing a group identity, used to determine access rights to objects in a file system.
GsmCellLocation	This class was deprecated in API level 31. use `CellIdentity`.
Guard	This interface represents a guard, which is an object that is used to protect access to another object.
GuardedObject	A GuardedObject is an object that is used to protect access to another object.
GZIPInputStream	This class implements a stream filter for reading compressed data in the GZIP file format.
GZIPOutputStream	This class implements a stream filter for writing compressed data in the GZIP file format.

H

Half	The `Half` class is a wrapper and a utility class to manipulate half-precision 16-bit IEEE 754 floating point data types (also called fp16 or binary16).
Handler	A Handler allows you to send and process `Message` and Runnable objects associated with a thread's `MessageQueue`.
Handler	A `Handler` object takes log messages from a `Logger` and exports them.
Handler.Callback	Callback interface you can use when instantiating a Handler to avoid having to implement your own subclass of Handler.
HandlerBase	This class was deprecated in API level 9. This class works with the deprecated `DocumentHandler` interface. It has been replaced by the SAX2 `DefaultHandler` class.
HandlerThread	A `Thread` that has a `Looper`.
HandshakeCompletedEvent	This event indicates that an SSL handshake completed on a given SSL connection.
HandshakeCompletedListener	This interface is implemented by any class which wants to receive notifications about the completion of an SSL protocol handshake on a given SSL connection.
HandwritingGesture	Base class for stylus handwriting gestures.
HapticFeedbackConstants	Constants to be used to perform haptic feedback effects via `View#performHapticFeedback(int)`
HapticGenerator	Haptic Generator(HG).
HardwareBuffer	HardwareBuffer wraps a native `AHardwareBuffer` object, which is a low-level object representing a memory buffer accessible by various hardware units.
HardwareBufferRenderer	Creates an instance of a hardware-accelerated renderer.
HardwareBufferRenderer.RenderRequest	Sets the parameters that can be used to control a render request for a `HardwareBufferRenderer`.
HardwareBufferRenderer.RenderResult	Class that contains data regarding the result of the render request.
HardwarePropertiesManager	The HardwarePropertiesManager class provides a mechanism of accessing hardware state of a device: CPU, GPU and battery temperatures, CPU usage per core, fan speed, etc.
HardwareRenderer	Creates an instance of a hardware-accelerated renderer.
HardwareRenderer.FrameRenderRequest	Sets the parameters that can be used to control a render request for a `HardwareRenderer`.
HashMap<K, V>	Hash table based implementation of the `Map` interface.
HashSet<E>	This class implements the `Set` interface, backed by a hash table (actually a `HashMap` instance).
Hashtable<K, V>	This class implements a hash table, which maps keys to values.
HdrConversionMode	Describes the HDR conversion mode for a device.
HeaderBlock	Unmodifiable container of headers or trailers.
HeaderViewListAdapter	ListAdapter used when a ListView has header views.
HealthConnectException	Class representing health connect exceptions.
HealthConnectManager	This class provides APIs to interact with the centralized HealthConnect storage maintained by the system.
HealthPermissions	Permissions for accessing the HealthConnect APIs.
HealthStats	A HealthStats object contains system health data about an application.
HeartRateRecord	Captures the user's heart rate.
HeartRateRecord.Builder	Builder class for `HeartRateRecord`
HeartRateRecord.HeartRateSample	A class to represent heart rate samples
HeartRateVariabilityRmssdRecord	Captures the user's heart rate variability RMSSD.
HeartRateVariabilityRmssdRecord.Builder	Builder class for `HeartRateVariabilityRmssdRecord`
HebrewCalendar	`HebrewCalendar` is a subclass of `Calendar` that that implements the traditional Hebrew calendar.
HeightRecord	Captures the user's height.
HeightRecord.Builder	Builder class for `HeightRecord`
HeterogeneousExpandableList	Additional methods that when implemented make an `ExpandableListAdapter` take advantage of the `Adapter` view type mechanism.
HexFormat	`HexFormat` converts between bytes and chars and hex-encoded strings which may include additional formatting markup such as prefixes, suffixes, and delimiters.
HideReturnsTransformationMethod	This transformation method causes any carriage return characters (\r) to be hidden by displaying them as zero-width non-breaking space characters (\ufeff).
Highlights	A class that represents of the highlight of the text.
Highlights.Builder	A builder for the Highlights.
HijrahChronology	The Hijrah calendar is a lunar calendar supporting Islamic calendars.
HijrahDate	A date in the Hijrah calendar system.
HijrahEra	An era in the Hijrah calendar system.
HomeSp	Class representing HomeSP subtree in PerProviderSubscription (PPS) Management Object (MO) tree.
HorizontalScrollView	Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display.
HostApduService	HostApduService is a convenience `Service` class that can be extended to emulate an NFC card inside an Android service component.
HostNameResolver	This interface was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
HostnameVerifier	This class is the base interface for hostname verification.
HostNfcFService	HostNfcFService is a convenience `Service` class that can be extended to emulate an NFC-F card inside an Android service component.
HostUsiVersion	Provides information about the supported Universal Stylus Initiative (USI) version of the host device.
HpkeSpi	Service Provider Interface for HPKE client API classes to communicate with implementations of HPKE as described in RFC 9180.
Html	This class processes HTML strings into displayable styled text.
Html.ImageGetter	Retrieves images for HTML <img> tags.
Html.TagHandler	Is notified when HTML tags are encountered that the parser does not know how to interpret.
HttpAuthHandler	Represents a request for HTTP authentication.
HttpConnectionParams	This class was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
HttpCookie	An HttpCookie object represents an HTTP cookie, which carries state information between server and user agent.
HttpEngine	An engine to process `UrlRequest`s, which uses the best HTTP stack available on the current platform.
HttpEngine.Builder	A builder for `HttpEngine`s, which allows runtime configuration of `HttpEngine`.
HttpException	Base exception passed to `UrlRequest.Callback.onFailed()`.
HttpParams	This interface was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
HttpResponseCache	Caches HTTP and HTTPS responses to the filesystem so they may be reused, saving time and bandwidth.
HttpRetryException	Thrown to indicate that a HTTP request needs to be retried but cannot be retried automatically, due to streaming mode being enabled.
HttpsURLConnection	`HttpsURLConnection` extends `HttpURLConnection` with support for https-specific features.
HttpURLConnection	A URLConnection with support for HTTP-specific features.
HydrationRecord	Captures the amount of liquids user had in a single drink.
HydrationRecord.Builder	Builder class for `HydrationRecord`

I

IBinder	Base interface for a remotable object, the core part of a lightweight remote procedure call mechanism designed for high performance when performing in-process and cross-process calls.
IBinder.DeathRecipient	Interface for receiving a callback when the process hosting an IBinder has gone away.
IccOpenLogicalChannelResponse	Response to the `TelephonyManager#iccOpenLogicalChannel` command.
Icon	An umbrella container for several serializable graphics representations, including Bitmaps, compressed bitmap images (e.g. JPG or PNG), and drawable resources (including vectors).
Icon.OnDrawableLoadedListener	Implement this interface to receive a callback when `loadDrawableAsync` is finished and your Drawable is ready.
IconMarginSpan	Paragraph affecting span, that draws a bitmap at the beginning of a text.
ICUUncheckedIOException	Unchecked version of `IOException`.
Identity	This class was deprecated in API level 3. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
IdentityChangedListener	Base class for Aware identity/cluster changes callbacks.
IdentityCredential	Class used to read data from a previously provisioned credential.
IdentityCredentialException	Base class for all Identity Credential exceptions.
IdentityCredentialStore	An interface to a secure store for user identity documents.
IdentityHashMap<K, V>	This class implements the `Map` interface with a hash table, using reference-equality in place of object-equality when comparing keys (and values).
IdentityScope	This class was deprecated in API level 3. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
IDN	Provides methods to convert internationalized domain names (IDNs) between a normal Unicode representation and an ASCII Compatible Encoding (ACE) representation.
IDNA	Abstract base class for IDNA processing.
IDNA.Error	IDNA error bit set values.
IDNA.Info	Output container for IDNA processing errors.
IInterface	Base class for Binder interfaces.
IkeDerAsn1DnIdentification	This class represents an IKE entity ID based on a DER encoded ASN.1 X.500 Distinguished Name.
IkeException	IkeException represents a generic exception that includes internal and protocol exceptions.
IkeFqdnIdentification	IkeFqdnIdentification represents an IKE entity identification based on a fully-qualified domain name (FQDN).
IkeIdentification	IkeIdentification is abstract base class that represents the common information for all types of IKE entity identification.
IkeInternalException	IkeInternalException encapsulates all local implementation or resource related exceptions.
IkeIOException	Wrapper for I/O exceptions encountered during IKE operations.
IkeIpv4AddrIdentification	IkeIpv4AddrIdentification represents an IKE entity identification based on IPv4 address.
IkeIpv6AddrIdentification	IkeIpv6AddrIdentification represents an IKE entity identification based on IPv6 address.
IkeKeyIdIdentification	IkeKeyIdIdentification represents an IKE entity identification based on a Key ID.
IkeNetworkLostException	IkeNetworkLostException is returned to the caller via `IkeSessionCallback.onError(android.net.ipsec.ike.exceptions.IkeException)` if the underlying Network for the `IkeSession` was lost with no alternatives.
IkeNonProtocolException	IkeNonProtocolException encapsulates all implementation-specific non-protocol IKE errors.
IkeProtocolException	IkeProtocolException is an abstract class that represents the common information for all IKE protocol errors.
IkeRfc822AddrIdentification	IkeRfc822AddrIdentification represents an IKE entity identification based on a fully-qualified RFC 822 email address ID (e.g. ike@android.com).
IkeSaProposal	IkeSaProposal represents a proposed configuration to negotiate an IKE SA.
IkeSaProposal.Builder	This class is used to incrementally construct a IkeSaProposal.
IkeSession	This class represents an IKE Session management object that allows for keying and management of `IpSecTransform`s.
IkeSessionCallback	Callback interface for receiving state changes of an `IkeSession`.
IkeSessionConfiguration	IkeSessionConfiguration represents the negotiated configuration for a `IkeSession`.
IkeSessionConfiguration.Builder	This class can be used to incrementally construct a `IkeSessionConfiguration`.
IkeSessionConnectionInfo	IkeSessionConnectionInfo represents the connection information of an `IkeSession`.
IkeSessionParams	IkeSessionParams contains all user provided configurations for negotiating an `IkeSession`.
IkeSessionParams.Builder	This class can be used to incrementally construct a `IkeSessionParams`.
IkeSessionParams.IkeAuthConfig	This class contains common information of an IKEv2 authentication configuration.
IkeSessionParams.IkeAuthDigitalSignLocalConfig	This class represents the configuration to support IKEv2 public-key-signature-based authentication of the local side.
IkeSessionParams.IkeAuthDigitalSignRemoteConfig	This class represents the configuration to support IKEv2 public-key-signature-based authentication of the remote side.
IkeSessionParams.IkeAuthEapConfig	This class represents the configuration to support EAP authentication of the local side.
IkeSessionParams.IkeAuthPskConfig	This class represents the configuration to support IKEv2 pre-shared-key-based authentication of local or remote side.
IkeTimeoutException	This exception is thrown when there is an IKE retransmission timeout.
IkeTrafficSelector	IkeTrafficSelector represents a Traffic Selector of a Child Session.
IkeTunnelConnectionParams	IkeTunnelConnectionParams contains IKEv2 configurations to establish an IKE/IPsec tunnel.
Ikev2VpnProfile	The Ikev2VpnProfile is a configuration for the platform setup of IKEv2/IPsec VPNs.
Ikev2VpnProfile.Builder	A incremental builder for IKEv2 VPN profiles
IllegalAccessError	Thrown if an application attempts to access or modify a field, or to call a method that it does not have access to.
IllegalAccessException	An IllegalAccessException is thrown when an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, but the currently executing method does not have access to the definition of the specified class, field, method or constructor.
IllegalArgumentException	Thrown to indicate that a method has been passed an illegal or inappropriate argument.
IllegalBlockingModeException	Unchecked exception thrown when a blocking-mode-specific operation is invoked upon a channel in the incorrect blocking mode.
IllegalBlockSizeException	This exception is thrown when the length of data provided to a block cipher is incorrect, i.e., does not match the block size of the cipher.
IllegalChannelGroupException	Unchecked exception thrown when an attempt is made to open a channel in a group that was not created by the same provider.
IllegalCharsetNameException	Unchecked exception thrown when a string that is not a legal charset name is used as such.
IllegalFormatCodePointException	Unchecked exception thrown when a character with an invalid Unicode code point as defined by `Character#isValidCodePoint` is passed to the `Formatter`.
IllegalFormatConversionException	Unchecked exception thrown when the argument corresponding to the format specifier is of an incompatible type.
IllegalFormatException	Unchecked exception thrown when a format string contains an illegal syntax or a format specifier that is incompatible with the given arguments.
IllegalFormatFlagsException	Unchecked exception thrown when an illegal combination flags is given.
IllegalFormatPrecisionException	Unchecked exception thrown when the precision is a negative value other than `-1`, the conversion does not support a precision, or the value is otherwise unsupported.
IllegalFormatWidthException	Unchecked exception thrown when the format width is a negative value other than `-1` or is otherwise unsupported.
IllegalMonitorStateException	Thrown to indicate that a thread has attempted to wait on an object's monitor or to notify other threads waiting on an object's monitor without owning the specified monitor.
IllegalSelectorException	Unchecked exception thrown when an attempt is made to register a channel with a selector that was not created by the provider that created the channel.
IllegalStateException	Signals that a method has been invoked at an illegal or inappropriate time.
IllegalThreadStateException	Thrown to indicate that a thread is not in an appropriate state for the requested operation.
IllformedLocaleException	Thrown by methods in `ULocale` and `ULocale.Builder` to indicate that an argument is not a well-formed BCP 47 tag.
IllformedLocaleException	Thrown by methods in `Locale` and `Locale.Builder` to indicate that an argument is not a well-formed BCP 47 tag.
Image	A single complete image buffer to use with a media source such as a `MediaCodec` or a `CameraDevice`.
Image.Plane	A single color plane of image data.
ImageButton	Displays a button with an image (instead of text) that can be pressed or clicked by the user.
ImageDecoder	A class for converting encoded images (like `PNG`, `JPEG`, `WEBP`, `GIF`, or `HEIF`) into `Drawable` or `Bitmap` objects.
ImageDecoder.DecodeException	Information about an interrupted decode.
ImageDecoder.ImageInfo	Information about an encoded image.
ImageDecoder.OnHeaderDecodedListener	Interface for changing the default settings of a decode.
ImageDecoder.OnPartialImageListener	Interface for inspecting a `DecodeException` and potentially preventing it from being thrown.
ImageDecoder.Source	Source of encoded image data.
ImageFormat
ImageReader	The ImageReader class allows direct application access to image data rendered into a `Surface` Several Android media API classes accept Surface objects as targets to render to, including `MediaPlayer`, `MediaCodec`, `CameraDevice`, `ImageWriter` and `RenderScript Allocations`.
ImageReader.Builder	Builder class for `ImageReader` objects.
ImageReader.OnImageAvailableListener	Callback interface for being notified that a new image is available.
ImageSpan	Span that replaces the text it's attached to with a `Drawable` that can be aligned with the bottom or with the baseline of the surrounding text.
ImageSwitcher	`ViewSwitcher` that switches between two ImageViews when a new image is set on it.
ImageTransformation	Replaces the content of a child `ImageView` of a `presentation template` with the first image that matches a regular expression (regex).
ImageTransformation.Builder	Builder for `ImageTransformation` objects.
ImageView	Displays image resources, for example `Bitmap` or `Drawable` resources.
ImageView.ScaleType	Options for scaling the bounds of an image to the bounds of this view.
ImageWriter	The ImageWriter class allows an application to produce Image data into a `Surface`, and have it be consumed by another component like `CameraDevice`.
ImageWriter.Builder	Builder class for `ImageWriter` objects.
ImageWriter.OnImageReleasedListener	ImageWriter callback interface, used to to asynchronously notify the application of various ImageWriter events.
ImplicitDirectBootViolation	Subclass of `Violation` that is used when a process implicitly relies on automatic Direct Boot filtering.
ImsException	This class defines an IMS-related exception that has been thrown while interacting with a device or carrier provided ImsService implementation.
ImsManager	Provides access to information about Telephony IMS services on the device.
ImsMmTelManager	A manager for the MmTel (Multimedia Telephony) feature of an IMS network, given an associated subscription.
ImsMmTelManager.CapabilityCallback	Receives IMS capability status updates from the ImsService.
ImsRcsManager	Manager for interfacing with the framework RCS services, including the User Capability Exchange (UCE) service, as well as managing user settings.
ImsReasonInfo	Provides details on why an IMS call failed.
ImsRegistrationAttributes	Contains the attributes associated with the current IMS registration.
ImsRegistrationImplBase	Controls IMS registration for this ImsService and notifies the framework when the IMS registration for this ImsService has changed status.
ImsStateCallback	A callback class used for monitoring changes in IMS service connection states for a specific subscription.
InCallService	This service is implemented by an app that wishes to provide functionality for managing phone calls.
InCallService.VideoCall	Used to issue commands to the `Connection.VideoProvider` associated with a `Call`.
InCallService.VideoCall.Callback	The `InCallService` extends this class to provide a means of receiving callbacks from the `Connection.VideoProvider`.
IncompatibleClassChangeError	Thrown when an incompatible class change has occurred to some class definition.
IncompleteAnnotationException	Thrown to indicate that a program has attempted to access an element of an annotation interface that was added to the annotation interface definition after the annotation was compiled (or serialized).
IncorrectContextUseViolation	Incorrect usage of `Context`, such as obtaining a UI service from non-UI `Context` instance.
IndexedPropertyChangeEvent	An "IndexedPropertyChange" event gets delivered whenever a component that conforms to the JavaBeans™ specification (a "bean") changes a bound indexed property.
IndexOutOfBoundsException	Thrown to indicate that an index of some sort (such as to an array, to a string, or to a vector) is out of range.
IndianCalendar	`IndianCalendar` is a subclass of `GregorianCalendar` that numbers years since the birth of the Buddha.
Inet4Address	This class represents an Internet Protocol version 4 (IPv4) address.
Inet6Address	This class represents an Internet Protocol version 6 (IPv6) address.
InetAddress	This class represents an Internet Protocol (IP) address.
InetAddresses	Utility methods for `InetAddress` implementations.
InetSocketAddress	This class implements an IP Socket Address (IP address + port number) It can also be a pair (hostname + port number), in which case an attempt will be made to resolve the hostname.
InferenceInput	Contains all the information needed for a run of model inference.
InferenceInput.Builder	A builder for `InferenceInput`
InferenceInput.Params
InferenceInput.Params.Builder	A builder for `Params`
InferenceOutput	The result returned by `ModelManager#run`.
InferenceOutput.Builder	A builder for `InferenceOutput`
InflateException	This exception is thrown by an inflater on error conditions.
Inflater	This class provides support for general purpose decompression using the popular ZLIB compression library.
InflaterInputStream	This class implements a stream filter for uncompressing data in the "deflate" compression format.
InflaterOutputStream	Implements an output stream filter for uncompressing data stored in the "deflate" compression format.
InheritableThreadLocal<T>	This class extends `ThreadLocal` to provide inheritance of values from parent thread to child thread: when a child thread is created, the child receives initial values for all inheritable thread-local variables for which the parent has values.
Inherited	Indicates that an annotation interface is automatically inherited.
InlineContentView	This class represents a view that holds opaque content from another app that you can inline in your UI.
InlineContentView.SurfaceControlCallback	Callback for observing the lifecycle of the surface control that manipulates the backing secure embedded UI surface.
InlineExecutionProhibitedException	Thrown when an executor runs a submitted runnable inline in `Executor.execute(Runnable)` and `UrlRequest.Builder.setDirectExecutorAllowed(boolean)` was not called.
InlinePresentation	Wrapper class holding a `Slice` and an `InlinePresentationSpec` for rendering UI for an Inline Suggestion.
InlinePresentationSpec	This class represents the presentation specification by which an inline suggestion should abide when constructing its UI.
InlinePresentationSpec.Builder	A builder for `InlinePresentationSpec`
InlineSuggestion	This class represents an inline suggestion which is made by one app and can be embedded into the UI of another.
InlineSuggestionInfo	This class represents the description of an inline suggestion.
InlineSuggestionsRequest	This class represents an inline suggestion request made by one app to get suggestions from the other source.
InlineSuggestionsRequest.Builder	A builder for `InlineSuggestionsRequest`
InlineSuggestionsResponse	This class represents an inline suggestion response.
InMemoryDexClassLoader	A `ClassLoader` implementation that loads classes from a buffer containing a DEX file.
InputBinding	Information given to an `InputMethod` about a client connecting to it.
InputConfiguration	Immutable class to store an input configuration that is used to create a reprocessable capture session.
InputConnection	The InputConnection interface is the communication channel from an `InputMethod` back to the application that is receiving its input.
InputConnectionWrapper	Wrapper class for proxying calls to another InputConnection.
InputContentInfo	A container object with which input methods can send content files to the target application.
InputDevice	Describes the capabilities of a particular input device.
InputDevice.MotionRange	Provides information about the range of values for a particular `MotionEvent` axis.
InputDevice.ViewBehavior	Provides information on how views processing `MotionEvent`s generated by this input device should respond to the events.
InputEvent	Common base class for input events.
InputFilter	InputFilters can be attached to `Editable`s to constrain the changes that can be made to them.
InputFilter.AllCaps	This filter will capitalize all the lowercase and titlecase letters that are added through edits.
InputFilter.LengthFilter	This filter will constrain edits not to make the length of the text greater than the specified length.
InputManager	Provides information about input devices and available key layouts.
InputManager.InputDeviceListener	Listens for changes in input devices.
InputMethod	This class provides input method APIs.
InputMethod	The InputMethod interface represents an input method which can generate key events and text, such as digital, email addresses, CJK characters, other language characters, and etc., while handling various input events, and send the text back to the application that requests text input.
InputMethod.AccessibilityInputConnection	This class provides the allowed list of `InputConnection` APIs for accessibility services.
InputMethod.SessionCallback
InputMethodInfo	This class is used to specify meta information of an input method.
InputMethodManager	Central system API to the overall input method framework (IMF) architecture, which arbitrates interaction between applications and the current input method.
InputMethodService	InputMethodService provides a standard implementation of an InputMethod, which final implementations can derive from and customize.
InputMethodService.InputMethodImpl	Concrete implementation of `AbstractInputMethodService.AbstractInputMethodImpl` that provides all of the standard behavior for an input method.
InputMethodService.InputMethodSessionImpl	Concrete implementation of `AbstractInputMethodService.AbstractInputMethodSessionImpl` that provides all of the standard behavior for an input method session.
InputMethodService.Insets	Information about where interesting parts of the input method UI appear.
InputMethodSession	The InputMethodSession interface provides the per-client functionality of `InputMethod` that is safe to expose to applications.
InputMethodSession.EventCallback
InputMethodSubtype	This class is used to specify meta information of a subtype contained in an input method editor (IME).
InputMethodSubtype.InputMethodSubtypeBuilder	InputMethodSubtypeBuilder is a builder class of InputMethodSubtype.
InputMismatchException	Thrown by a `Scanner` to indicate that the token retrieved does not match the pattern for the expected type, or that the token is out of range for the expected type.
InputQueue	An input queue provides a mechanism for an application to receive incoming input events.
InputQueue.Callback	Interface to receive notification of when an InputQueue is associated and dissociated with a thread.
InputSource	A single input source for an XML entity.
InputStream	This abstract class is the superclass of all classes representing an input stream of bytes.
InputStreamReader	An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified `charset`.
InputTransferToken	A token that can be used to request focus on or to transfer touch gesture to a `SurfaceControlViewHost` or `SurfaceControl` that has an input channel.
InputType	Bit definitions for an integer defining the basic content type of text held in an `Editable` object.
InsertGesture	A sub-class of `HandwritingGesture` for inserting text at the defined insertion point.
InsertGesture.Builder	Builder for `InsertGesture`.
InsertModeGesture	A sub-class of `HandwritingGesture` for starting an insert mode which inserts a space in the editor to let users hand write freely at the designated insertion point.
InsertModeGesture.Builder	Builder for `InsertModeGesture`.
InsertRecordsResponse	Response for `HealthConnectManager#insertRecords`.
InsetDrawable	A Drawable that insets another Drawable by a specified distance or fraction of the content bounds.
Insets	An Insets instance holds four integer offsets which describe changes to the four edges of a Rectangle.
InspectionCompanion<T>	An interface for companion objects used to inspect views.
InspectionCompanion.UninitializedPropertyMapException	Thrown by `InspectionCompanion.readProperties(java.lang.Object, android.view.inspector.PropertyReader)` if called before `InspectionCompanion.mapProperties(android.view.inspector.PropertyMapper)`.
InspectionCompanionProvider	An interface for services that can provide inspection companions for a class.
InstallSourceInfo	Information about how an app was installed.
InstanceCountViolation
Instant	An instantaneous point on the time-line.
InstantiationError	Thrown when an application tries to use the Java `new` construct to instantiate an abstract class or an interface.
InstantiationException	Thrown when an application tries to create an instance of a class using the `newInstance` method in class `Class`, but the specified class object cannot be instantiated.
InstantRecord	A record that contains a measurement recorded as an instance .
InstantSource	Provides access to the current instant.
Instrumentation	Base class for implementing application instrumentation code.
Instrumentation.ActivityMonitor	Information about a particular kind of Intent that is being monitored.
Instrumentation.ActivityResult	Description of a Activity execution result to return to the original activity.
InstrumentationInfo	Information you can retrieve about a particular piece of test instrumentation.
InstrumentationTestCase	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the AndroidX Test Library.
InstrumentationTestRunner	This class was deprecated in API level 24. Use AndroidJUnitRunner instead. New tests should be written using the Android Testing Support Library.
InstrumentationTestSuite	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
Int2	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Int3	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Int4	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Int64Ref	A signed 64bit integer reference suitable for passing to lower-level system calls.
IntArrayEvaluator	This evaluator can be used to perform type interpolation between `int[]` values.
IntBinaryOperator	Represents an operation upon two `int`-valued operands and producing an `int`-valued result.
IntBuffer	An int buffer.
IntConsumer	Represents an operation that accepts a single `int`-valued argument and returns no result.
Integer	The `Integer` class wraps a value of the primitive type `int` in an object.
IntegerWidth	A class that defines the strategy for padding and truncating integers before the decimal separator.
Intent	An intent is an abstract description of an operation to be performed.
Intent.FilterComparison	Wrapper class holding an Intent and implementing comparisons on it for the purpose of filtering.
Intent.ShortcutIconResource	Represents a shortcut/live folder icon resource.
IntentFilter	Structured description of Intent values to be matched.
IntentFilter.AuthorityEntry	This is an entry for a single authority in the Iterator returned by `IntentFilter.authoritiesIterator()`.
IntentFilter.MalformedMimeTypeException	This exception is thrown when a given MIME type does not have a valid syntax.
IntentReceiverLeakedViolation
IntentSender	A description of an Intent and target action to perform with it.
IntentSender.OnFinished	Callback interface for discovering when a send operation has completed.
IntentSender.SendIntentException	Exception thrown when trying to send through a PendingIntent that has been canceled or is otherwise no longer able to execute the request.
IntentService	This class was deprecated in API level 30. IntentService is subject to all the background execution limits imposed with Android 8.0 (API level 26). Consider using `WorkManager` instead.
InterfaceAddress	This class represents a Network Interface address.
IntermenstrualBleedingRecord	Captures the user's inter-menstrual bleeding.
IntermenstrualBleedingRecord.Builder	Builder class for `IntermenstrualBleedingRecord`
InternalError	Thrown to indicate some unexpected internal error has occurred in the Java Virtual Machine.
Interpolator
Interpolator	An interpolator defines the rate of change of an animation.
Interpolator.Result
InterruptedByTimeoutException	Checked exception received by a thread when a timeout elapses before an asynchronous operation completes.
InterruptedException	Thrown when a thread is waiting, sleeping, or otherwise occupied, and the thread is interrupted, either before or during the activity.
InterruptedIOException	Signals that an I/O operation has been interrupted.
InterruptibleChannel	A channel that can be asynchronously closed and interrupted.
IntervalRecord	A record that contains a measurement with a time interval.
IntEvaluator	This evaluator can be used to perform type interpolation between `int` values.
IntFlagMapping	Maps the values of an `int` property to sets of string for properties that encode flags.
IntFunction<R>	Represents a function that accepts an int-valued argument and produces a result.
IntPredicate	Represents a predicate (boolean-valued function) of one `int`-valued argument.
IntProperty<T>	An implementation of `Property` to be used specifically with fields of type `int`.
IntStream	A sequence of primitive int-valued elements supporting sequential and parallel aggregate operations.
IntStream.Builder	A mutable builder for an `IntStream`.
IntStream.IntMapMultiConsumer	Represents an operation that accepts an `int`-valued argument and an IntConsumer, and returns no result.
IntSummaryStatistics	A state object for collecting statistics such as count, min, max, sum, and average.
IntSupplier	Represents a supplier of `int`-valued results.
IntToDoubleFunction	Represents a function that accepts an int-valued argument and produces a double-valued result.
IntToLongFunction	Represents a function that accepts an int-valued argument and produces a long-valued result.
IntUnaryOperator	Represents an operation on a single `int`-valued operand that produces an `int`-valued result.
InvalidAlgorithmParameterException	This is the exception for invalid or inappropriate algorithm parameters.
InvalidClassException	Thrown when the Serialization runtime detects one of the following problems with a Class.
InvalidForegroundServiceTypeException	Exception thrown when an app tries to start a foreground `Service` with an invalid type.
InvalidKeException	This exception is thrown when the remote server expected a different Diffie-Hellman group.
InvalidKeyException	This is the exception for invalid Keys (invalid encoding, wrong length, uninitialized, etc).
InvalidKeySpecException	This is the exception for invalid key specifications.
InvalidMajorVersionException	This exception is thrown when major version of an inbound message is higher than 2.
InvalidMarkException	Unchecked exception thrown when an attempt is made to reset a buffer when its mark is not defined.
InvalidObjectException	Indicates that one or more deserialized objects failed validation tests.
InvalidParameterException	This exception, designed for use by the JCA/JCE engine classes, is thrown when an invalid parameter is passed to a method.
InvalidParameterSpecException	This is the exception for invalid parameter specifications.
InvalidPathException	Unchecked exception thrown when path string cannot be converted into a `Path` because the path string contains invalid characters, or the path string is invalid for other file system specific reasons.
InvalidPreferencesFormatException	Thrown to indicate that an operation could not complete because the input did not conform to the appropriate XML document type for a collection of preferences, as per the `Preferences` specification.
InvalidPropertiesFormatException	Thrown to indicate that an operation could not complete because the input did not conform to the appropriate XML document type for a collection of properties, as per the `Properties` specification.
InvalidReaderSignatureException	Thrown if the reader signature is invalid, or it doesn't contain a certificate chain, or if the signature failed to validate.
InvalidRequestMessageException	Thrown if message with the request doesn't satisfy the requirements documented in `IdentityCredential#getEntries(byte[], Map, byte[], byte[])`.
InvalidSelectorsException	This exception is thrown if the remote server received an IPsec packet with mismatched selectors.
InvocationHandler	`InvocationHandler` is the interface implemented by the invocation handler of a proxy instance.
InvocationTargetException	InvocationTargetException is a checked exception that wraps an exception thrown by an invoked method or constructor.
IOError	Thrown when a serious I/O error has occurred.
IOException	Signals that an I/O exception of some sort has occurred.
IpConfiguration	A class representing the IP configuration of a network.
IpConfiguration.Builder	Builder used to construct `IpConfiguration` objects.
IpPrefix	This class represents an IP prefix, i.e., a contiguous block of IP addresses aligned on a power of two boundary (also known as an "IP subnet").
IpSecAlgorithm	This class represents a single algorithm that can be used by an `IpSecTransform`.
IpSecManager	This class contains methods for managing IPsec sessions.
IpSecManager.ResourceUnavailableException	Thrown to indicate that an IPsec resource is unavailable.
IpSecManager.SecurityParameterIndex	This class represents a reserved SPI.
IpSecManager.SpiUnavailableException	Thrown to indicate that a requested SPI is in use.
IpSecManager.UdpEncapsulationSocket	This class provides access to a UDP encapsulation Socket.
IpSecTransform	This class represents a transform, which roughly corresponds to an IPsec Security Association.
IpSecTransform.Builder	This class is used to build `IpSecTransform` objects.
IpSecTransformState	This class represents a snapshot of the state of an IpSecTransform This class provides the current state of an IpSecTransform, enabling link metric analysis by the caller.
IpSecTransformState.Builder	Builder class for testing purposes Except for testing, IPsec callers normally do not instantiate `IpSecTransformState` themselves but instead get a reference via `IpSecTransformState`
IslamicCalendar	`IslamicCalendar` is a subclass of `Calendar` that that implements the Islamic civil and religious calendars.
IslamicCalendar.CalculationType	enumeration of available calendar calculation types
IsoChronology	The ISO calendar system.
IsoDep	Provides access to ISO-DEP (ISO 14443-4) properties and I/O operations on a `Tag`.
IsoEra	An era in the ISO calendar system.
IsoFields	Fields and units specific to the ISO-8601 calendar system, including quarter-of-year and week-based-year.
IsolatedContext	This class was deprecated in API level 24. New tests should be written using the Android Testing Support Library.
IsolatedService	Base class for services that are started by ODP on a call to `OnDevicePersonalizationManager#execute(ComponentName, PersistableBundle, java.util.concurrent.Executor, OutcomeReceiver)` and run in an isolated process.
IsolatedServiceException	A class that an `IsolatedService` can use to signal a failure in handling a request and return an error to be logged and aggregated.
IsolatedWorker	Interface with methods that need to be implemented to handle requests from the OnDevicePersonalization service to an `IsolatedService`.
Iterable<T>	Implementing this interface allows an object to be the target of the enhanced `for` statement (sometimes called the "for-each loop" statement).
Iterator<E>	An iterator over a collection.
IvParameterSpec	This class specifies an initialization vector (IV).

J

JapaneseCalendar	`JapaneseCalendar` is a subclass of `GregorianCalendar` that numbers years and eras based on the reigns of the Japanese emperors.
JapaneseChronology	The Japanese Imperial calendar system.
JapaneseDate	A date in the Japanese Imperial calendar system.
JapaneseEra	An era in the Japanese Imperial calendar system.
JarEntry	This class is used to represent a JAR file entry.
JarException	Signals that an error of some sort has occurred while reading from or writing to a JAR file.
JarFile	The `JarFile` class is used to read the contents of a jar file from any file that can be opened with `java.io.RandomAccessFile`.
JarInputStream	The `JarInputStream` class is used to read the contents of a JAR file from any input stream.
JarOutputStream	The `JarOutputStream` class is used to write the contents of a JAR file to any output stream.
JarURLConnection	A URL Connection to a Java ARchive (JAR) file or an entry in a JAR file.
JavascriptInterface	Annotation that allows exposing methods to JavaScript.
JetPlayer	JetPlayer provides access to JET content playback and control.
JetPlayer.OnJetEventListener	Handles the notification when the JET engine generates an event.
JobInfo	Container of data passed to the `JobScheduler` fully encapsulating the parameters required to schedule work against the calling application.
JobInfo.Builder	Builder class for constructing `JobInfo` objects.
JobInfo.TriggerContentUri	Information about a content URI modification that a job would like to trigger on.
JobParameters	Contains the parameters used to configure/identify your job.
JobScheduler	This is an API for scheduling various types of jobs against the framework that will be executed in your application's own process.
JobService	Entry point for the callback from the `JobScheduler`.
JobServiceEngine	Helper for implementing a `Service` that interacts with `JobScheduler`.
JobWorkItem	A unit of work that can be enqueued for a job using `JobScheduler.enqueue`.
JobWorkItem.Builder	Builder class for constructing `JobWorkItem` objects.
JoinCustomAudienceRequest	The request object to join a custom audience.
JoinCustomAudienceRequest.Builder	Builder for `JoinCustomAudienceRequest` objects.
JoinOrSplitGesture	A subclass of `HandwritingGesture` for deleting or inserting whitespace in text.
JoinOrSplitGesture.Builder	Builder for `JoinOrSplitGesture`.
JoinSpec	This class represents the specifications for the joining operation in search.
JoinSpec.Builder	Builder for `objects`.
JSONArray	A dense indexed sequence of values.
JSONException	Thrown to indicate a problem with the JSON API.
JSONObject	A modifiable set of name/value mappings.
JsonReader	Reads a JSON (RFC 4627) encoded value as a stream of tokens.
JSONStringer	Implements `JSONObject#toString` and `JSONArray#toString`.
JsonToken	A structure, name or value type in a JSON-encoded string.
JSONTokener	Parses a JSON (RFC 4627) encoded string into the corresponding object.
JsonWriter	Writes a JSON (RFC 4627) encoded value to a stream, one token at a time.
JsPromptResult	Public class for handling JavaScript prompt requests.
JsResult	An instance of this class is passed as a parameter in various `WebChromeClient` action notifications.
JulianFields	A set of date fields that provide access to Julian Days.

K

Key	The Key interface is the top-level interface for all keys.
KeyAgreement	This class provides the functionality of a key agreement (or key exchange) protocol.
KeyAgreementSpi	This class defines the Service Provider Interface (SPI) for the `KeyAgreement` class.
Keyboard	This class was deprecated in API level 29. This class is deprecated because this is just a convenient UI widget class that application developers can re-implement on top of existing public APIs. If you have already depended on this class, consider copying the implementation from AOSP into your project or re-implementing a similar widget by yourselves
Keyboard.Key	Class for describing the position and characteristics of a single key in the keyboard.
Keyboard.Row	Container for keys in the keyboard.
KeyboardShortcutGroup	A group of `KeyboardShortcutInfo`.
KeyboardShortcutInfo	Information about a Keyboard Shortcut.
KeyboardView	This class was deprecated in API level 29. This class is deprecated because this is just a convenient UI widget class that application developers can re-implement on top of existing public APIs. If you have already depended on this class, consider copying the implementation from AOSP into your project or re-implementing a similar widget by yourselves
KeyboardView.OnKeyboardActionListener	Listener for virtual keyboard events.
KeyChain	The `KeyChain` class provides access to private keys and their corresponding certificate chains in credential storage.
KeyChainAliasCallback	The KeyChainAliasCallback is the callback for `KeyChain.choosePrivateKeyAlias(Activity, KeyChainAliasCallback, String, Principal, Uri, String)`.
KeyChainException	Thrown on problems accessing the `KeyChain`.
KeyCharacterMap	Describes the keys provided by a keyboard device and their associated labels.
KeyCharacterMap.KeyData	This class was deprecated in API level 11. instead use `KeyCharacterMap#getDisplayLabel(int)`, `KeyCharacterMap#getNumber(int)` and `KeyCharacterMap#get(int, int)`.
KeyCharacterMap.UnavailableException	Thrown by `KeyCharacterMap#load` when a key character map could not be loaded.
KeyedFrequencyCap	A frequency cap for a specific ad counter key.
KeyedFrequencyCap.Builder	Builder for creating `KeyedFrequencyCap` objects.
KeyEvent	Object used to report key and button events.
KeyEvent.Callback
KeyEvent.DispatcherState	Use with `KeyEvent#dispatch(Callback, DispatcherState, Object)` for more advanced key dispatching, such as long presses.
KeyException	This is the basic key exception.
KeyExpiredException	Indicates that a cryptographic operation failed because the employed key's validity end date is in the past.
KeyFactory	Key factories are used to convert keys (opaque cryptographic keys of type `Key`) into key specifications (transparent representations of the underlying key material), and vice versa.
KeyFactorySpi	This class defines the Service Provider Interface (SPI) for the `KeyFactory` class.
Keyframe	This class holds a time/value pair for an animation.
KeyGenerator	This class provides the functionality of a secret (symmetric) key generator.
KeyGeneratorSpi	This class defines the Service Provider Interface (SPI) for the `KeyGenerator` class.
KeyGenParameterSpec	`AlgorithmParameterSpec` for initializing a `KeyPairGenerator` or a `KeyGenerator` of the Android Keystore system.
KeyGenParameterSpec.Builder	Builder of `KeyGenParameterSpec` instances.
KeyguardManager	Class to manage and query the state of the lock screen (also known as Keyguard).
KeyguardManager.KeyguardDismissCallback	Callback passed to `KeyguardManager#requestDismissKeyguard(Activity, KeyguardDismissCallback)` to notify caller of result.
KeyguardManager.KeyguardLock	This class was deprecated in API level 15. Use `R.attr.showWhenLocked` or `Activity.setShowWhenLocked(boolean)` instead. This allows you to seamlessly occlude and unocclude the keyguard as your application moves in and out of the foreground and does not require that any special permissions be requested.
KeyguardManager.KeyguardLockedStateListener	Listener for keyguard locked state changes.
KeyguardManager.OnKeyguardExitResult	This interface was deprecated in API level 26. Use `KeyguardDismissCallback`
KeyInfo	Information about a key from the Android Keystore system.
KeyListener	Interface for converting text key events into edit operations on an Editable class.
KeyManagementException	This is the general key management exception for all operations dealing with key management.
KeyManager	This is the base interface for JSSE key managers.
KeyManagerFactory	This class acts as a factory for key managers based on a source of key material.
KeyManagerFactorySpi	This class defines the Service Provider Interface (SPI) for the `KeyManagerFactory` class.
KeyNotYetValidException	Indicates that a cryptographic operation failed because the employed key's validity start date is in the future.
KeyPair	This class is a simple holder for a key pair (a public key and a private key).
KeyPairGenerator	The KeyPairGenerator class is used to generate pairs of public and private keys.
KeyPairGeneratorSpec	This class was deprecated in API level 23. Use `KeyGenParameterSpec` instead.
KeyPairGeneratorSpec.Builder	This class was deprecated in API level 23. Use `KeyGenParameterSpec.Builder` instead.
KeyPairGeneratorSpi	This class defines the Service Provider Interface (SPI) for the `KeyPairGenerator` class, which is used to generate pairs of public and private keys.
KeyPermanentlyInvalidatedException	Indicates that the key can no longer be used because it has been permanently invalidated.
KeyProperties	Properties of Android Keystore keys.
KeyProtection	Specification of how a key or key pair is secured when imported into the Android Keystore system.
KeyProtection.Builder	Builder of `KeyProtection` instances.
KeyRep	Standardized representation for serialized Key objects.
KeyRep.Type	Key type.
KeySpec	A (transparent) specification of the key material that constitutes a cryptographic key.
KeyStore	This class represents a storage facility for cryptographic keys and certificates.
KeyStore.Builder	A description of a to-be-instantiated KeyStore object.
KeyStore.CallbackHandlerProtection	A ProtectionParameter encapsulating a CallbackHandler.
KeyStore.Entry	A marker interface for `KeyStore` entry types.
KeyStore.Entry.Attribute	An attribute associated with a keystore entry.
KeyStore.LoadStoreParameter	A marker interface for `KeyStore` `load` and `store` parameters.
KeyStore.PasswordProtection	A password-based implementation of `ProtectionParameter`.
KeyStore.PrivateKeyEntry	A `KeyStore` entry that holds a `PrivateKey` and corresponding certificate chain.
KeyStore.ProtectionParameter	A marker interface for keystore protection parameters.
KeyStore.SecretKeyEntry	A `KeyStore` entry that holds a `SecretKey`.
KeyStore.TrustedCertificateEntry	A `KeyStore` entry that holds a trusted `Certificate`.
KeyStoreBuilderParameters	A parameters object for X509KeyManagers that encapsulates a List of KeyStore.Builders.
KeyStoreException	Exception containing information about the failure at the Keystore / KeyMint layer while generating or using a key.
KeyStoreException	This is the generic KeyStore exception.
KeyStoreParameter	This class was deprecated in API level 23. Use `KeyProtection` instead.
KeyStoreParameter.Builder	This class was deprecated in API level 23. Use `KeyProtection.Builder` instead.
KeyStoreSpi	This class defines the Service Provider Interface (SPI) for the `KeyStore` class.
KeyValueStore	An interface to a read-only key-value store.

L

LabeledIntent	A special subclass of Intent that can have a custom label/icon associated with it.
LambdaConversionException	LambdaConversionException
LargeTest	This @interface was deprecated in API level 24. Use LargeTest instead. New tests should be written using the Android Testing Support Library.
LastOwnerException	This class was deprecated in API level 33. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.Policy` and related classes since 1.2.
LauncherActivity	This class was deprecated in API level 30. Applications can implement this UI themselves using `RecyclerView` and `PackageManager.queryIntentActivities(Intent, int)`
LauncherActivity.IconResizer	Utility class to resize icons to match default icon size.
LauncherActivity.ListItem	An item in the list
LauncherActivityInfo	A representation of an activity that can belong to this user or a managed profile associated with this user.
LauncherApps	Class for retrieving a list of launchable activities for the current user and any associated managed profiles that are visible to the current user, which can be retrieved with `getProfiles()`.
LauncherApps.ArchiveCompatibilityParams	Used to enable Archiving compatibility options with `LauncherApps.setArchiveCompatibility(ArchiveCompatibilityParams)`.
LauncherApps.Callback	Callbacks for package changes to this and related managed profiles.
LauncherApps.PinItemRequest	Represents a "pin shortcut" or a "pin appwidget" request made by an app, which is sent with an `LauncherApps.ACTION_CONFIRM_PIN_SHORTCUT` or `LauncherApps.ACTION_CONFIRM_PIN_APPWIDGET` intent respectively to the default launcher app.
LauncherApps.ShortcutQuery	Represents a query passed to `LauncherApps.getShortcuts(android.content.pm.LauncherApps.ShortcutQuery, android.os.UserHandle)`.
LauncherUserInfo	The LauncherUserInfo object holds information about an Android user that is required to display the Launcher related UI elements specific to the user (like badges).
LaunchPerformanceBase	Base class for all launch performance Instrumentation classes.
LayerDrawable	A Drawable that manages an array of other Drawables.
LayeredSocketFactory	This interface was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
Layout	A base class that manages text layout in visual elements on the screen.
Layout.Alignment
Layout.Builder	A builder class for Layout object.
Layout.Directions	Stores information about bidirectional (left-to-right or right-to-left) text within the layout of a line.
Layout.TextInclusionStrategy	Strategy for determining whether a text segment is inside a rectangle area.
LayoutAnimationController	A layout animation controller is used to animate the children of a layout or a view group.
LayoutAnimationController.AnimationParameters	The set of parameters that has to be attached to each view contained in the view group animated by the layout animation controller.
LayoutDirection	A class for defining layout directions.
LayoutInflater	Instantiates a layout XML file into its corresponding `View` objects.
LayoutInflater.Factory
LayoutInflater.Factory2
LayoutInflater.Filter	Hook to allow clients of the LayoutInflater to restrict the set of Views that are allowed to be inflated.
LayoutTransition	This class enables automatic animations on layout changes in ViewGroup objects.
LayoutTransition.TransitionListener	This interface is used for listening to starting and ending events for transitions.
LDAPCertStoreParameters	Parameters used as input for the LDAP `CertStore` algorithm.
LeadingMarginSpan	A paragraph style affecting the leading margin.
LeadingMarginSpan.LeadingMarginSpan2	An extended version of `LeadingMarginSpan`, which allows the implementor to specify the number of lines of the paragraph to which this object is attached that the "first line of paragraph" margin width will be applied to.
LeadingMarginSpan.Standard	The standard implementation of LeadingMarginSpan, which adjusts the margin but does not do any rendering.
LeakedClosableViolation
LeanBodyMassRecord	Captures the user's lean body mass.
LeanBodyMassRecord.Builder	Builder class for `LeanBodyMassRecord`
LeaveCustomAudienceRequest	The request object is used to leave a custom audience.
LeaveCustomAudienceRequest.Builder	Builder for `LeaveCustomAudienceRequest` objects.
Length	Represents a unit of length.
LensIntrinsicsSample	Immutable class to store an `lens intrinsics intra-frame sample`.
LensShadingMap	Immutable class for describing a `4 x N x M` lens shading map of floats.
Level	The Level class defines a set of standard logging levels that can be used to control logging output.
LevelListDrawable	A resource that manages a number of alternate Drawables, each assigned a maximum numerical value.
LexicalHandler	SAX2 extension handler for lexical events.
Light	Represents a logical light on the device.
LightingColorFilter	A color filter that can be used to simulate simple lighting effects.
LightsManager	The LightsManager class allows control over device lights.
LightsManager.LightsSession	Encapsulates a session that can be used to control device lights and represents the lifetime of the requests.
LightsRequest	Encapsulates a request to modify the state of multiple lights.
LightsRequest.Builder	Builder for creating device light change requests.
LightState	Represents the state of a device light.
LightState.Builder	Builder for creating device light change requests.
LimitExceededException	Indicates that the app has exceeded a limit set by the System.
LinearGradient
LinearInterpolator	An interpolator where the rate of change is constant
LinearLayout	A layout that arranges other views either horizontally in a single column or vertically in a single row.
LinearLayout.LayoutParams	Per-child layout information associated with ViewLinearLayout.
LineBackgroundSpan	Used to change the background of lines where the span is attached to.
LineBackgroundSpan.Standard	Default implementation of the `LineBackgroundSpan`, which changes the background color of the lines to which the span is attached.
LineBreakConfig	Specifies the line-break strategies for text wrapping.
LineBreakConfig.Builder	A builder for creating a `LineBreakConfig` instance.
LineBreakConfigSpan	LineBreakSpan for changing line break style of the specific region of the text.
LineBreaker	Provides automatic line breaking for a single paragraph.
LineBreaker.Builder	Helper class for creating a `LineBreaker`.
LineBreaker.ParagraphConstraints	Line breaking constraints for single paragraph.
LineBreaker.Result	Holds the result of the `line breaking algorithm`.
LineHeightSpan	The classes that affect the line height of paragraph should implement this interface.
LineHeightSpan.Standard	Default implementation of the `LineHeightSpan`, which changes the line height of the attached paragraph.
LineHeightSpan.WithDensity	The classes that affect the line height of paragraph with respect to density, should implement this interface.
LineNumberInputStream	This class was deprecated in API level 1. This class incorrectly assumes that bytes adequately represent characters. As of JDK 1.1, the preferred way to operate on character streams is via the new character-stream classes, which include a class for counting line numbers.
LineNumberReader	A buffered character-input stream that keeps track of line numbers.
LinkAddress	Identifies an IP address on a network link.
LinkageError	Subclasses of `LinkageError` indicate that a class has some dependency on another class; however, the latter class has incompatibly changed after the compilation of the former class.
LinkedBlockingDeque<E>	An optionally-bounded blocking deque based on linked nodes.
LinkedBlockingQueue<E>	An optionally-bounded blocking queue based on linked nodes.
LinkedHashMap<K, V>	Hash table and linked list implementation of the `Map` interface, with well-defined encounter order.
LinkedHashSet<E>	Hash table and linked list implementation of the `Set` interface, with well-defined encounter order.
LinkedList<E>	Doubly-linked list implementation of the `List` and `Deque` interfaces.
LinkedTransferQueue<E>	An unbounded `TransferQueue` based on linked nodes.
Linkify	Linkify take a piece of text and a regular expression and turns all of the regex matches in the text into clickable links.
Linkify.MatchFilter	MatchFilter enables client code to have more control over what is allowed to match and become a link, and what is not.
Linkify.TransformFilter	TransformFilter enables client code to have more control over how matched patterns are represented as URLs.
LinkMovementMethod	A movement method that traverses links in the text buffer and scrolls if necessary.
LinkOption	Defines the options as to how symbolic links are handled.
LinkPermission	The `Permission` class for link creation operations.
LinkProperties	Describes the properties of a network link.
List<E>	An ordered collection, where the user has precise control over where in the list each element is inserted.
ListActivity	This class was deprecated in API level 30. Use `ListFragment` or `RecyclerView` to implement your Activity instead.
ListAdapter	Extended `Adapter` that is the bridge between a `ListView` and the data that backs the list.
ListFormatter	Immutable class for formatting a list, using data from CLDR (or supplied separately).
ListFormatter.FormattedList	An immutable class containing the result of a list formatting operation.
ListFormatter.Type	Type of meaning expressed by the list.
ListFormatter.Width	Verbosity level of the list patterns.
ListFragment	This class was deprecated in API level 28. Use the Support Library `ListFragment` for consistent behavior across all devices and access to Lifecycle.
ListItem	Represents a single option in a combo box or list box PDF form widget.
ListIterator<E>	An iterator for lists that allows the programmer to traverse the list in either direction, modify the list during iteration, and obtain the iterator's current position in the list.
ListPopupWindow	A ListPopupWindow anchors itself to a host view and displays a list of choices.
ListPreference	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
ListResourceBundle	`ListResourceBundle` is an abstract subclass of `ResourceBundle` that manages resources for a locale in a convenient and easy to use list.
ListView	Displays a vertically-scrollable collection of views, where each view is positioned immediatelybelow the previous view in the list.
ListView.FixedViewInfo	A class that represents a fixed view in a list, for example a header at the top or a footer at the bottom.
LiveFolders	This class was deprecated in API level 14. Live folders are no longer supported by Android. These have been replaced by the new AppWidget Collection APIs introduced in `Build.VERSION_CODES.HONEYCOMB`. These provide all of the features of live folders plus many more. The use of live folders is greatly discouraged because of security issues they introduce -- publishing a live folder requires making all data show for the live folder available to all applications with no permissions protecting it.
Loader<D>	This class was deprecated in API level 28. Use the Support Library `Loader`
Loader.ForceLoadContentObserver	This class was deprecated in API level 28. Use `Loader.ForceLoadContentObserver`
Loader.OnLoadCanceledListener<D>	This interface was deprecated in API level 28. Use `Loader.OnLoadCanceledListener`
Loader.OnLoadCompleteListener<D>	This interface was deprecated in API level 28. Use `Loader.OnLoadCompleteListener`
LoaderManager	This class was deprecated in API level 28. Use the Support Library `LoaderManager`
LoaderManager.LoaderCallbacks<D>	This interface was deprecated in API level 28. Use the Support Library `LoaderManager.LoaderCallbacks`
LoaderTestCase	A convenience class for testing `Loader`s.
LoadParams	Represents a set of parameters to load the PDF document.
LoadParams.Builder	Builder for constructing `LoadParams`.
LoadSdkException	Exception thrown by `SdkSandboxManager#loadSdk`
LocalActivityManager	This class was deprecated in API level 13. Use the new `Fragment` and `FragmentManager` APIs instead; these are also available on older platforms through the Android compatibility package.
LocalDate	A date without a time-zone in the ISO-8601 calendar system, such as `2007-12-03`.
LocalDateTime	A date-time without a time-zone in the ISO-8601 calendar system, such as `2007-12-03T10:15:30`.
Locale	A `Locale` object represents a specific geographical, political, or cultural region.
Locale.Builder	`Builder` is used to build instances of `Locale` from values configured by the setters.
Locale.Category	Enum for locale categories.
Locale.FilteringMode	This enum provides constants to select a filtering mode for locale matching.
Locale.IsoCountryCode	Enum for specifying the type defined in ISO 3166.
Locale.LanguageRange	This class expresses a Language Range defined in RFC 4647 Matching of Language Tags.
LocaleConfig	The LocaleConfig of an application.
LocaleData	A class for accessing miscellaneous data in the locale bundles
LocaleData.MeasurementSystem	Enumeration for representing the measurement systems.
LocaleData.PaperSize	A class that represents the size of letter head used in the country
LocaleDisplayNames	Returns display names of ULocales and components of ULocales.
LocaleDisplayNames.DialectHandling	Enum used in `LocaleDisplayNames.getInstance(android.icu.util.ULocale, android.icu.text.LocaleDisplayNames.DialectHandling)`.
LocaleDisplayNames.UiListItem	Struct-like class used to return information for constructing a UI list, each corresponding to a locale.
LocaleList	LocaleList is an immutable list of Locales, typically used to keep an ordered list of user preferences for locales.
LocaleManager	This class gives access to system locale services.
LocaleSpan	Changes the `Locale` of the text to which the span is attached.
LocalizedNumberFormatter	A NumberFormatter that has a locale associated with it; this means .format() methods are available.
LocalizedNumberRangeFormatter	A NumberRangeFormatter that has a locale associated with it; this means .formatRange() methods are available.
LocalServerSocket	Non-standard class for creating an inbound UNIX-domain socket in the Linux abstract namespace.
LocalSocket	Creates a (non-server) socket in the UNIX-domain namespace.
LocalSocketAddress	A UNIX-domain (AF_LOCAL) socket address.
LocalSocketAddress.Namespace	The namespace that this address exists in.
LocalTime	A time without a time-zone in the ISO-8601 calendar system, such as `10:15:30`.
LocalTimeRangeFilter	Specification of local time range for health connect requests.
LocalTimeRangeFilter.Builder	Builder class for `LocalTimeRangeFilter`
Location	A data class representing a geographic location.
LocationListener	Used for receiving notifications when the device location has changed.
LocationManager	This class provides access to the system location services.
LocationProvider	This class was deprecated in API level 31. This class is incapable of representing unknown provider properties and may return incorrect results on the rare occasion when a provider's properties are unknown. Prefer using `LocationManager#getProviderProperties(String)` to retrieve `ProviderProperties` instead.
LocationRequest	An encapsulation of various parameters for requesting location via `LocationManager`.
LocationRequest.Builder	A builder class for `LocationRequest`.
Locator	Interface for associating a SAX event with a document location.
Locator2	SAX2 extension to augment the entity information provided though a `Locator`.
Locator2Impl	SAX2 extension helper for holding additional Entity information, implementing the `Locator2` interface.
LocatorImpl	Provide an optional convenience implementation of Locator.
Lock	`Lock` implementations provide more extensive locking operations than can be obtained using `synchronized` methods and statements.
LockSupport	Basic thread blocking primitives for creating locks and other synchronization classes.
LocusId	An identifier for an unique state (locus) in the application.
Log	API for sending log output.
Logger	A Logger object is used to log messages for a specific system or application component.
LoggingMXBean	The management interface for the logging facility.
LoggingPermission	Legacy security code; do not use.
LoginException	This is the basic login exception.
LoginFilter	This class was deprecated in API level 30. Password requirements should not be hardcoded in clients. This class also does not handle non-BMP characters.
LoginFilter.PasswordFilterGMail	This class was deprecated in API level 30. Do not handle a user's Google password. Refer to Google Help for password restriction information.
LoginFilter.UsernameFilterGeneric	This filter rejects characters in the user name that are not compatible with Google login.
LoginFilter.UsernameFilterGMail	This class was deprecated in API level 30. Do not encode assumptions about Google account names into client applications.
LogManager	There is a single global LogManager object that is used to maintain a set of shared state about Loggers and log services.
LogPrinter	Implementation of a `Printer` that sends its output to the system log.
LogReader	An interface to a read logs from REQUESTS and EVENTS Used as a Data Access Object for the REQUESTS and EVENTS table.
LogRecord	LogRecord objects are used to pass logging requests between the logging framework and individual log Handlers.
LogSessionId	An instances of this class represents the ID of a log session.
Long	The `Long` class wraps a value of the primitive type `long` in an object.
Long2	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Long3	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Long4	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
LongAccumulator	One or more variables that together maintain a running `long` value updated using a supplied function.
LongAdder	One or more variables that together maintain an initially zero `long` sum.
LongBinaryOperator	Represents an operation upon two `long`-valued operands and producing a `long`-valued result.
LongBuffer	A long buffer.
LongConsumer	Represents an operation that accepts a single `long`-valued argument and returns no result.
LongFunction<R>	Represents a function that accepts a long-valued argument and produces a result.
LongPredicate	Represents a predicate (boolean-valued function) of one `long`-valued argument.
LongSparseArray<E>	SparseArray mapping longs to Objects.
LongStream	A sequence of primitive long-valued elements supporting sequential and parallel aggregate operations.
LongStream.Builder	A mutable builder for a `LongStream`.
LongStream.LongMapMultiConsumer	Represents an operation that accepts a `long`-valued argument and a LongConsumer, and returns no result.
LongSummaryStatistics	A state object for collecting statistics such as count, min, max, sum, and average.
LongSupplier	Represents a supplier of `long`-valued results.
LongToDoubleFunction	Represents a function that accepts a long-valued argument and produces a double-valued result.
LongToIntFunction	Represents a function that accepts a long-valued argument and produces an int-valued result.
LongUnaryOperator	Represents an operation on a single `long`-valued operand that produces a `long`-valued result.
Looper	Class used to run a message loop for a thread.
LoudnessCodecController	Class for getting recommended loudness parameter updates for audio decoders as they are used to play back media content according to the encoded format and current audio routing.
LoudnessCodecController.OnLoudnessCodecUpdateListener	Listener used for receiving asynchronous loudness metadata updates.
LoudnessEnhancer	LoudnessEnhancer is an audio effect for increasing audio loudness.
LruCache<K, V>	A cache that holds strong references to a limited number of values.
LSException	Parser or write operations may throw an `LSException` if the processing is stopped.
LSInput	This interface represents an input source for data.
LSOutput	This interface represents an output destination for data.
LSParser	An interface to an object that is able to build, or augment, a DOM tree from various input sources.
LSParserFilter	`LSParserFilter`s provide applications the ability to examine nodes as they are being constructed while parsing.
LSResourceResolver	`LSResourceResolver` provides a way for applications to redirect references to external resources.
LSSerializer	A `LSSerializer` provides an API for serializing (writing) a DOM document out into XML.
LuhnChecksumValidator	Validator that returns `true` if the number created by concatenating all given fields pass a Luhn algorithm checksum.

M

Mac	This class provides the functionality of a "Message Authentication Code" (MAC) algorithm.
MacAddress	Representation of a MAC address.
MacSpi	This class defines the Service Provider Interface (SPI) for the `Mac` class.
MagnificationConfig	This class describes the magnification config for `AccessibilityService` to control the magnification.
MagnificationConfig.Builder	Builder for creating `MagnificationConfig` objects.
Magnifier	Android magnifier widget.
Magnifier.Builder	Builder class for `Magnifier` objects.
MailTo	MailTo URL parser This class parses a mailto scheme URL and then can be queried for the parsed parameters.
MalformedInputException	Checked exception thrown when an input byte sequence is not legal for given charset, or an input character sequence is not a legal sixteen-bit Unicode sequence.
MalformedJsonException	Thrown when a reader encounters malformed JSON.
MalformedParameterizedTypeException	Thrown when a semantically malformed parameterized type is encountered by a reflective method that needs to instantiate it.
MalformedParametersException	Thrown when `the java.lang.reflect package` attempts to read method parameters from a class file and determines that one or more parameters are malformed.
MalformedURLException	Thrown to indicate that a malformed URL has occurred.
ManagedSubscriptionsPolicy	A policy class that describes how managed SIM subscriptions should behave on the device.
ManagerFactoryParameters	This class is the base interface for providing algorithm-specific information to a KeyManagerFactory or TrustManagerFactory.
MandatoryStreamCombination	Immutable class to store the available mandatory stream combination.
MandatoryStreamCombination.MandatoryStreamInformation	Immutable class to store available mandatory stream information.
Manifest
Manifest	The Manifest class is used to maintain Manifest entry names and their associated Attributes.
Manifest.permission
Manifest.permission_group
Map<K, V>	An object that maps keys to values.
Map.Entry<K, V>	A map entry (key-value pair).
MappedByteBuffer	A direct byte buffer whose content is a memory-mapped region of a file.
MaskFilter	MaskFilter is the base class for object that perform transformations on an alpha-channel mask before drawing it.
MaskFilterSpan	Span that allows setting a `MaskFilter` to the text it's attached to.
Mass	Represents a unit of mass.
Matcher	An engine that performs match operations on a character sequence by interpreting a `Pattern`.
MatchResult	The result of a match operation.
Math	The class `Math` contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
MathContext	The `MathContext` immutable class encapsulates the settings understood by the operator methods of the `BigDecimal` class (and potentially other classes).
MathContext	Immutable objects which encapsulate the context settings which describe certain rules for numerical operators, such as those implemented by the `BigDecimal` class.
Matrix	The Matrix class holds a 3x3 matrix for transforming coordinates.
Matrix	Matrix math utilities.
Matrix.ScaleToFit	Controls how the src rect should align into the dst rect for setRectToRect().
Matrix2f	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Matrix3f	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Matrix44	The Matrix44 class holds a 4x4 matrix for transforming coordinates.
Matrix4f	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
MatrixCursor	A mutable cursor implementation backed by an array of `Object`s.
MatrixCursor.RowBuilder	Builds a row of values using either of these approaches: Values can be added with explicit column ordering using `add(java.lang.Object)`, which starts from the left-most column and adds one column value at a time.
MbmsDownloadReceiver	The `BroadcastReceiver` responsible for handling intents sent from the middleware.
MbmsDownloadSession	This class provides functionality for file download over MBMS.
MbmsDownloadSessionCallback	A callback class that apps should use to receive information on file downloads over cell-broadcast.
MbmsErrors
MbmsErrors.DownloadErrors	Indicates the errors that are applicable only to the file-download use-case
MbmsErrors.GeneralErrors	Indicates the errors that may occur at any point and are applicable to both streaming and file-download.
MbmsErrors.GroupCallErrors	Indicates the errors that are applicable only to the group call use-case.
MbmsErrors.InitializationErrors	Indicates errors that may be generated during initialization by the middleware.
MbmsErrors.StreamingErrors	Indicates the errors that are applicable only to the streaming use-case
MbmsGroupCallSession	This class provides functionality for accessing group call functionality over MBMS.
MbmsGroupCallSessionCallback	A callback class that is used to receive information from the middleware on MBMS group-call services.
MbmsStreamingSession	This class provides functionality for streaming media over MBMS.
MbmsStreamingSessionCallback	A callback class that is used to receive information from the middleware on MBMS streaming services.
MealType	Identifier for the meal type.
Measure	An amount of a specified unit, consisting of a Number and a Unit.
MeasuredText	Result of text shaping of the single paragraph string.
MeasuredText.Builder	Helper class for creating a `MeasuredText`.
MeasureFormat	A formatter for Measure objects.
MeasureFormat.FormatWidth	Formatting width enum.
MeasurementManager	MeasurementManager provides APIs to manage source and trigger registrations.
MeasureUnit	A unit such as length, mass, volume, currency, etc.
MeasureUnit.Complexity	Enumeration for unit complexity.
MeasureUnit.MeasurePrefix	Enumeration for SI and binary prefixes, e.g. "kilo-", "nano-", "mebi-".
MediaActionSound	A class for producing sounds that match those produced by various actions taken by the media and camera APIs.
MediaBrowser	Browses media content offered by a link MediaBrowserService.
MediaBrowser.ConnectionCallback	Callbacks for connection related events.
MediaBrowser.ItemCallback	Callback for receiving the result of `MediaBrowser.getItem(String, ItemCallback)`.
MediaBrowser.MediaItem	A class with information on a single media item for use in browsing/searching media.
MediaBrowser.SubscriptionCallback	Callbacks for subscription related events.
MediaBrowserService	Base class for media browser services.
MediaBrowserService.BrowserRoot	Contains information that the browser service needs to send to the client when first connected.
MediaBrowserService.Result<T>	Completion handler for asynchronous callback methods in `MediaBrowserService`.
MediaCas	MediaCas can be used to obtain keys for descrambling protected media streams, in conjunction with `MediaDescrambler`.
MediaCas.EventListener	An interface registered by the caller to `MediaCas.setEventListener(EventListener, Handler)` to receives scheme-specific notifications from a MediaCas instance.
MediaCas.PluginDescriptor	Describe a CAS plugin with its CA_system_ID and string name.
MediaCas.Session	Class for an open session with the CA system.
MediaCasException	Base class for MediaCas exceptions
MediaCasException.DeniedByServerException	Exception thrown when the provisioning server or key server denies a license for a device.
MediaCasException.InsufficientResourceException	Exception thrown when an operation on a MediaCas object is attempted and hardware resources are not sufficient to allocate, due to client's lower priority.
MediaCasException.NotProvisionedException	Exception thrown when an operation on a MediaCas object is attempted before it's provisioned successfully.
MediaCasException.ResourceBusyException	Exception thrown when an operation on a MediaCas object is attempted and hardware resources are not available, due to being in use.
MediaCasException.UnsupportedCasException	Exception thrown when an attempt is made to construct a MediaCas object using a CA_system_id that is not supported by the device
MediaCasStateException	Base class for MediaCas runtime exceptions
MediaCodec	MediaCodec class can be used to access low-level media codecs, i.e.
MediaCodec.BufferInfo	Per buffer metadata includes an offset and size specifying the range of valid data in the associated codec (output) buffer.
MediaCodec.Callback	MediaCodec callback interface.
MediaCodec.CodecException	Thrown when an internal codec error occurs.
MediaCodec.CryptoException	Thrown when a crypto error occurs while queueing a secure input buffer.
MediaCodec.CryptoInfo	Metadata describing the structure of an encrypted input sample.
MediaCodec.CryptoInfo.Pattern	Metadata describing an encryption pattern for the protected bytes in a subsample.
MediaCodec.IncompatibleWithBlockModelException	Thrown when the codec is configured for block model and an incompatible API is called.
MediaCodec.InvalidBufferFlagsException	Thrown when a buffer is marked with an invalid combination of flags (e.g. both `MediaCodec.BUFFER_FLAG_END_OF_STREAM` and `MediaCodec.BUFFER_FLAG_DECODE_ONLY`)
MediaCodec.LinearBlock	Section of memory that represents a linear block.
MediaCodec.MetricsConstants
MediaCodec.OnFirstTunnelFrameReadyListener	Listener to be called when the first output frame has been decoded and is ready to be rendered for a codec configured for tunnel mode with `KEY_AUDIO_SESSION_ID`.
MediaCodec.OnFrameRenderedListener	Listener to be called when an output frame has rendered on the output surface
MediaCodec.OutputFrame	A single output frame and its associated metadata.
MediaCodec.ParameterDescriptor	Contains description of a parameter.
MediaCodec.QueueRequest	Builder-like class for queue requests.
MediaCodecInfo	Provides information about a given media codec available on the device.
MediaCodecInfo.AudioCapabilities	A class that supports querying the audio capabilities of a codec.
MediaCodecInfo.CodecCapabilities	Encapsulates the capabilities of a given codec component.
MediaCodecInfo.CodecProfileLevel	Encapsulates the profiles available for a codec component.
MediaCodecInfo.EncoderCapabilities	A class that supports querying the encoding capabilities of a codec.
MediaCodecInfo.VideoCapabilities	A class that supports querying the video capabilities of a codec.
MediaCodecInfo.VideoCapabilities.PerformancePoint	Video performance points are a set of standard performance points defined by number of pixels, pixel rate and frame rate.
MediaCodecList	Allows you to enumerate available codecs, each specified as a `MediaCodecInfo` object, find a codec supporting a given format and query the capabilities of a given codec.
MediaCommunicationManager	Provides support for interacting with `MediaSession2s` that applications have published to express their ongoing media playback state.
MediaController	Allows an app to interact with an ongoing media session.
MediaController	A view containing controls for a MediaPlayer.
MediaController.Callback	Callback for receiving updates from the session.
MediaController.MediaPlayerControl
MediaController.PlaybackInfo	Holds information about the current playback and how audio is handled for this session.
MediaController.TransportControls	Interface for controlling media playback on a session.
MediaController2	This API is not generally intended for third party application developers.
MediaController2.Builder	This API is not generally intended for third party application developers.
MediaController2.ControllerCallback	This API is not generally intended for third party application developers.
MediaCrypto	MediaCrypto class can be used in conjunction with `MediaCodec` to decode encrypted media data.
MediaCryptoException	Exception thrown if MediaCrypto object could not be instantiated or if unable to perform an operation on the MediaCrypto object.
MediaDataSource	For supplying media data to the framework.
MediaDescrambler	MediaDescrambler class can be used in conjunction with `MediaCodec` and `MediaExtractor` to decode media data scrambled by conditional access (CA) systems such as those in the ISO/IEC13818-1.
MediaDescription	A simple set of metadata for a media item suitable for display.
MediaDescription.Builder	Builder for `MediaDescription` objects.
MediaDrm	MediaDrm can be used to obtain keys for decrypting protected media streams, in conjunction with `MediaCrypto`.
MediaDrm.CryptoSession	In addition to supporting decryption of DASH Common Encrypted Media, the MediaDrm APIs provide the ability to securely deliver session keys from an operator's session key server to a client device, based on the factory-installed root of trust, and then perform encrypt, decrypt, sign and verify operations with the session key on arbitrary user data.
MediaDrm.ErrorCodes	Error codes that may be returned from `MediaDrm.MediaDrmStateException.getErrorCode()` and `MediaCodec.CryptoException.getErrorCode()` The description of each error code includes steps that may be taken to resolve the error condition.
MediaDrm.KeyRequest	Contains the opaque data an app uses to request keys from a license server.
MediaDrm.KeyStatus	Defines the status of a key.
MediaDrm.LogMessage	A `LogMessage` records an event in the `MediaDrm` framework or vendor plugin.
MediaDrm.MediaDrmStateException	Thrown when a general failure occurs during a MediaDrm operation.
MediaDrm.MetricsConstants	Definitions for the metrics that are reported via the `MediaDrm.getMetrics()` call.
MediaDrm.OnEventListener	Interface definition for a callback to be invoked when a drm event occurs
MediaDrm.OnExpirationUpdateListener	Interface definition for a callback to be invoked when a drm session expiration update occurs
MediaDrm.OnKeyStatusChangeListener	Interface definition for a callback to be invoked when the keys in a drm session change states.
MediaDrm.OnSessionLostStateListener	Interface definition for a callback to be invoked when the session state has been lost and is now invalid
MediaDrm.PlaybackComponent	This class contains the Drm session ID and log session ID
MediaDrm.ProvisionRequest	Contains the opaque data an app uses to request a certificate from a provisioning server
MediaDrm.SessionException	`SessionException` is a misnomer because it may occur in methods without a session context.
MediaDrmException	Base class for MediaDrm exceptions
MediaDrmResetException	This exception is thrown when the MediaDrm instance has become unusable due to a restart of the mediaserver process.
MediaDrmThrowable	A @`Throwable` thrown from `MediaDrm` or @`MediaCrypto` APIs
MediaExtractor	MediaExtractor facilitates extraction of demuxed, typically encoded, media data from a data source.
MediaExtractor.CasInfo	Describes the conditional access system used to scramble a track.
MediaExtractor.MetricsConstants
MediaFeature	MediaFeature defines various media features, e.g. hdr type.
MediaFeature.HdrType	Defines the type of HDR (high dynamic range) video.
MediaFormat	Encapsulates the information describing the format of media data, be it audio or video, as well as optional feature metadata.
MediaFormat.QpOffsetRect	QpOffsetRect constitutes the metadata required for encoding a region of interest in an image or a video frame.
MediaItemInfo	Represents information about a piece of media (for example, an audio or video file).
MediaItemInfo.Builder	Builder for `MediaItemInfo`.
MediaMetadata	Contains metadata about an item, such as the title, artist, etc.
MediaMetadata.Builder	Use to build MediaMetadata objects.
MediaMetadataEditor	This class was deprecated in API level 21. Use `MediaMetadata` instead together with `MediaSession`.
MediaMetadataRetriever	MediaMetadataRetriever class provides a unified interface for retrieving frame and meta data from an input media file.
MediaMetadataRetriever.BitmapParams
MediaMetricsManager	This class gives information about, and interacts with media metrics.
MediaMuxer	MediaMuxer facilitates muxing elementary streams.
MediaMuxer.OutputFormat	Defines the output format.
MediaParser	Parses media container formats and extracts contained media samples and metadata.
MediaParser.InputReader	Provides input data to `MediaParser`.
MediaParser.OutputConsumer	Receives extracted media sample data and metadata from `MediaParser`.
MediaParser.ParsingException	Thrown when an error occurs while parsing a media stream.
MediaParser.SeekableInputReader	`InputReader` that allows setting the read position.
MediaParser.SeekMap	Maps seek positions to `SeekPoints` in the stream.
MediaParser.SeekPoint	Defines a seek point in a media stream.
MediaParser.TrackData	Holds information associated with a track.
MediaParser.UnrecognizedInputFormatException	Thrown if all parser implementations provided to `MediaParser.create(OutputConsumer, String)` failed to sniff the input content.
MediaPlayer	MediaPlayer class can be used to control playback of audio/video files and streams.
MediaPlayer.DrmInfo	Encapsulates the DRM properties of the source.
MediaPlayer.MetricsConstants
MediaPlayer.NoDrmSchemeException	Thrown when a DRM method is called before preparing a DRM scheme through prepareDrm().
MediaPlayer.OnBufferingUpdateListener	Interface definition of a callback to be invoked indicating buffering status of a media resource being streamed over the network.
MediaPlayer.OnCompletionListener	Interface definition for a callback to be invoked when playback of a media source has completed.
MediaPlayer.OnDrmConfigHelper	Interface definition of a callback to be invoked when the app can do DRM configuration (get/set properties) before the session is opened.
MediaPlayer.OnDrmInfoListener	Interface definition of a callback to be invoked when the DRM info becomes available
MediaPlayer.OnDrmPreparedListener	Interface definition of a callback to notify the app when the DRM is ready for key request/response
MediaPlayer.OnErrorListener	Interface definition of a callback to be invoked when there has been an error during an asynchronous operation (other errors will throw exceptions at method call time).
MediaPlayer.OnInfoListener	Interface definition of a callback to be invoked to communicate some info and/or warning about the media or its playback.
MediaPlayer.OnMediaTimeDiscontinuityListener	Interface definition of a callback to be invoked when discontinuity in the normal progression of the media time is detected.
MediaPlayer.OnPreparedListener	Interface definition for a callback to be invoked when the media source is ready for playback.
MediaPlayer.OnSeekCompleteListener	Interface definition of a callback to be invoked indicating the completion of a seek operation.
MediaPlayer.OnSubtitleDataListener	Interface definition of a callback to be invoked when a player subtitle track has new subtitle data available.
MediaPlayer.OnTimedMetaDataAvailableListener	Interface definition of a callback to be invoked when a track has timed metadata available.
MediaPlayer.OnTimedTextListener	Interface definition of a callback to be invoked when a timed text is available for display.
MediaPlayer.OnVideoSizeChangedListener	Interface definition of a callback to be invoked when the video size is first known or updated
MediaPlayer.ProvisioningNetworkErrorException	Thrown when the device requires DRM provisioning but the provisioning attempt has failed due to a network error (Internet reachability, timeout, etc.).
MediaPlayer.ProvisioningServerErrorException	Thrown when the device requires DRM provisioning but the provisioning attempt has failed due to the provisioning server denying the request.
MediaPlayer.TrackInfo	Class for MediaPlayer to return each audio/video/subtitle track's metadata.
MediaProjection	A token granting applications the ability to capture screen contents and/or record system audio.
MediaProjection.Callback	Callbacks for the projection session.
MediaProjectionConfig	Configure the `MediaProjection` session requested from `MediaProjectionManager#createScreenCaptureIntent(MediaProjectionConfig)`.
MediaProjectionManager	Manages the retrieval of certain types of `MediaProjection` tokens.
MediaRecorder	Used to record audio and video.
MediaRecorder.AudioEncoder	Defines the audio encoding.
MediaRecorder.AudioSource	Defines the audio source.
MediaRecorder.MetricsConstants
MediaRecorder.OnErrorListener	Interface definition for a callback to be invoked when an error occurs while recording.
MediaRecorder.OnInfoListener	Interface definition of a callback to be invoked to communicate some info and/or warning about the recording.
MediaRecorder.OutputFormat	Defines the output format.
MediaRecorder.VideoEncoder	Defines the video encoding.
MediaRecorder.VideoSource	Defines the video source.
MediaRoute2Info	Describes the properties of a route.
MediaRoute2Info.Builder	Builder for `media route info`.
MediaRoute2ProviderService	Base class for media route provider services.
MediaRouteActionProvider	The media route action provider displays a `media route button` in the application's `ActionBar` to allow the user to select routes and to control the currently selected route.
MediaRouteButton
MediaRouter	This API is not recommended for new applications.
MediaRouter.Callback	Interface for receiving events about media routing changes.
MediaRouter.RouteCategory	Definition of a category of routes.
MediaRouter.RouteGroup	Information about a route that consists of multiple other routes in a group.
MediaRouter.RouteInfo	Information about a media route.
MediaRouter.SimpleCallback	Stub implementation of `MediaRouter.Callback`.
MediaRouter.UserRouteInfo	Information about a route that the application may define and modify.
MediaRouter.VolumeCallback	Interface for receiving events about volume changes.
MediaRouter2	This API is not generally intended for third party application developers.
MediaRouter2.ControllerCallback	Callback for receiving `RoutingController` updates.
MediaRouter2.OnGetControllerHintsListener	A listener interface to send optional app-specific hints when creating a `RoutingController`.
MediaRouter2.RouteCallback	Callback for receiving events about media route discovery.
MediaRouter2.RoutingController	A class to control media routing session in media route provider.
MediaRouter2.ScanRequest	Represents a set of parameters for scanning requests.
MediaRouter2.ScanRequest.Builder	Builder class for `ScanRequest`.
MediaRouter2.ScanToken	Represents an active scan request registered in the system.
MediaRouter2.TransferCallback	Callback for receiving events on media transfer.
MediaScannerConnection	MediaScannerConnection provides a way for applications to pass a newly created or downloaded media file to the media scanner service.
MediaScannerConnection.MediaScannerConnectionClient	An interface for notifying clients of MediaScannerConnection when a connection to the MediaScanner service has been established and when the scanning of a file has completed.
MediaScannerConnection.OnScanCompletedListener	Interface for notifying clients of the result of scanning a requested media file.
MediaSession	Allows interaction with media controllers, volume keys, media buttons, and transport controls.
MediaSession.Callback	Receives media buttons, transport controls, and commands from controllers and the system.
MediaSession.QueueItem	A single item that is part of the play queue.
MediaSession.Token	Represents an ongoing session.
MediaSession2	This API is not generally intended for third party application developers.
MediaSession2.Builder	This API is not generally intended for third party application developers.
MediaSession2.ControllerInfo	This API is not generally intended for third party application developers.
MediaSession2.SessionCallback	This API is not generally intended for third party application developers.
MediaSession2Service	This API is not generally intended for third party application developers.
MediaSession2Service.MediaNotification	This API is not generally intended for third party application developers.
MediaSessionManager	Provides support for interacting with `media sessions` that applications have published to express their ongoing media playback state.
MediaSessionManager.OnActiveSessionsChangedListener	Listens for changes to the list of active sessions.
MediaSessionManager.OnMediaKeyEventSessionChangedListener	Listener to receive changes in the media key event session, which would receive a media key event unless specified.
MediaSessionManager.OnSession2TokensChangedListener	This API is not generally intended for third party application developers.
MediaSessionManager.RemoteUserInfo	Information of a remote user of `MediaSession` or `MediaBrowserService`.
MediaStore	The contract between the media provider and applications.
MediaStore.Audio	Collection of all media with MIME type of `audio/*`.
MediaStore.Audio.AlbumColumns	Audio album metadata columns.
MediaStore.Audio.Albums	Contains artists for audio files
MediaStore.Audio.ArtistColumns	Audio artist metadata columns.
MediaStore.Audio.Artists	Contains artists for audio files
MediaStore.Audio.Artists.Albums	Sub-directory of each artist containing all albums on which a song by the artist appears.
MediaStore.Audio.AudioColumns	Audio metadata columns.
MediaStore.Audio.Genres	Contains all genres for audio files
MediaStore.Audio.Genres.Members	Sub-directory of each genre containing all members.
MediaStore.Audio.GenresColumns	Audio genre metadata columns.
MediaStore.Audio.Media
MediaStore.Audio.Playlists	This class was deprecated in API level 31. Android playlists are now deprecated. We will keep the current functionality for compatibility resons, but we will no longer take feature request. We do not advise adding new usages of Android Playlists. M3U files can be used as an alternative.
MediaStore.Audio.Playlists.Members	Sub-directory of each playlist containing all members.
MediaStore.Audio.PlaylistsColumns	This interface was deprecated in API level 31. Android playlists are now deprecated. We will keep the current functionality for compatibility reasons, but we will no longer take feature request. We do not advise adding new usages of Android Playlists. M3U files can be used as an alternative.
MediaStore.Audio.Radio
MediaStore.DownloadColumns	Download metadata columns.
MediaStore.Downloads	Collection of downloaded items.
MediaStore.Files	Media provider table containing an index of all files in the media storage, including non-media files.
MediaStore.Files.FileColumns	File metadata columns.
MediaStore.Images	Collection of all media with MIME type of `image/*`.
MediaStore.Images.ImageColumns	Image metadata columns.
MediaStore.Images.Media
MediaStore.Images.Thumbnails	This class was deprecated in API level 29. Callers should migrate to using `ContentResolver#loadThumbnail`, since it offers richer control over requested thumbnail sizes and cancellation behavior.
MediaStore.MediaColumns	Common media metadata columns.
MediaStore.PickerMediaColumns	Photo picker metadata columns.
MediaStore.Video	Collection of all media with MIME type of `video/*`.
MediaStore.Video.Media
MediaStore.Video.Thumbnails	This class was deprecated in API level 29. Callers should migrate to using `ContentResolver#loadThumbnail`, since it offers richer control over requested thumbnail sizes and cancellation behavior.
MediaStore.Video.VideoColumns	Video metadata columns.
MediaSync	MediaSync class can be used to synchronously play audio and video streams.
MediaSync.Callback	MediaSync callback interface.
MediaSync.OnErrorListener	Interface definition of a callback to be invoked when there has been an error during an asynchronous operation (other errors will throw exceptions at method call time).
MediaSyncEvent	The MediaSyncEvent class defines events that can be used to synchronize playback or capture actions between different players and recorders.
MediaTimestamp	An immutable object that represents the linear correlation between the media time and the system time.
MediumTest	This @interface was deprecated in API level 24. Use MediumTest instead. New tests should be written using the Android Testing Support Library.
Member	Member is an interface that reflects identifying information about a single member (a field or a method) or a constructor.
MembershipKey	A token representing the membership of an Internet Protocol (IP) multicast group.
MemoryFile	MemoryFile is a wrapper for `SharedMemory` which can optionally be set to purgeable.
MemoryHandler	`Handler` that buffers requests in a circular buffer in memory.
MenstruationFlowRecord	Captures a description of how heavy a user's menstrual flow was (spotting, light, medium, or heavy).
MenstruationFlowRecord.Builder	Builder class for `MenstruationFlowRecord`
MenstruationFlowRecord.MenstruationFlowType	Identifier for Menstruation Flow
MenstruationPeriodRecord	Captures the menstruation period record.
MenstruationPeriodRecord.Builder	Builder class for `MenstruationPeriodRecord`
Menu	Interface for managing the items in a menu.
MenuInflater	This class is used to instantiate menu XML files into Menu objects.
MenuItem	Interface for direct access to a previously created menu item.
MenuItem.OnActionExpandListener	Interface definition for a callback to be invoked when a menu item marked with `MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW` is expanded or collapsed.
MenuItem.OnMenuItemClickListener	Interface definition for a callback to be invoked when a menu item is clicked.
MergeCursor	A convenience class that lets you present an array of Cursors as a single linear Cursor.
Mesh	Class representing a mesh object.
MeshSpecification	Class responsible for holding specifications for `Mesh` creations.
MeshSpecification.Attribute	Data class to represent a single attribute in a shader.
MeshSpecification.Varying	Data class to represent a single varying variable.
Message	Defines a message containing a description and arbitrary data object that can be sent to a `Handler`.
MessageDecryptionException	Thrown when failing to decrypt a message from the reader device.
MessageDigest	This MessageDigest class provides applications the functionality of a message digest algorithm, such as SHA-1 or SHA-256.
MessageDigestSpi	This class defines the Service Provider Interface (SPI) for the `MessageDigest` class, which provides the functionality of a message digest algorithm, such as MD5 or SHA.
MessageFormat	[icu enhancement] ICU's replacement for `MessageFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
MessageFormat	`MessageFormat` provides a means to produce concatenated messages in a language-neutral way.
MessageFormat.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `MessageFormat.formatToCharacterIterator`.
MessageFormat.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `MessageFormat.formatToCharacterIterator`.
MessagePattern	Parses and represents ICU MessageFormat patterns.
MessagePattern.ApostropheMode	Mode for when an apostrophe starts quoted literal text for MessageFormat output.
MessagePattern.ArgType	Argument type constants.
MessagePattern.Part	A message pattern "part", representing a pattern parsing event.
MessagePattern.Part.Type	Part type constants.
MessagePdu	A parcelable list of PDUs representing contents of a possibly multi-part SMS.
MessageQueue	Low-level class holding the list of messages to be dispatched by a `Looper`.
MessageQueue.IdleHandler	Callback interface for discovering when a thread is going to block waiting for more messages.
MessageQueue.OnFileDescriptorEventListener	A listener which is invoked when file descriptor related events occur.
Messenger	Reference to a Handler, which others can use to send messages to it.
Metadata	Set of shared metadata fields for `Record`
Metadata.Builder
MetaKeyKeyListener	This base class encapsulates the behavior for tracking the state of meta keys such as SHIFT, ALT and SYM as well as the pseudo-meta state of selecting text.
MeteringRectangle	An immutable class to represent a rectangle `(x, y, width, height)` with an additional weight component.
Method	A `Method` provides information about, and access to, a single method on a class or interface.
MethodHandle	A method handle is a typed, directly executable reference to an underlying method, constructor, field, or similar low-level operation, with optional transformations of arguments or return values.
MethodHandleInfo	A symbolic reference obtained by cracking a direct method handle into its consitutent symbolic parts.
MethodHandles	This class consists exclusively of static methods that operate on or return method handles.
MethodHandles.Lookup	A lookup object is a factory for creating method handles, when the creation requires access checking.
MethodType	A method type represents the arguments and return type accepted and returned by a method handle, or the arguments and return type passed and expected by a method handle caller.
MetricAffectingSpan	The classes that affect character-level text formatting in a way that changes the width or height of characters extend this class.
MGF1ParameterSpec	This class specifies the set of parameters used with mask generation function MGF1 in OAEP Padding and RSASSA-PSS signature scheme, as defined in the PKCS#1 v2.2 standard.
MicrophoneDirection	Interface defining mechanism for controlling the directionality and field width of audio capture.
MicrophoneInfo	Class providing information on a microphone.
MicrophoneInfo.Coordinate3F
MidiDevice	This class is used for sending and receiving data to and from a MIDI device Instances of this class are created by `MidiManager#openDevice`.
MidiDevice.MidiConnection	This class represents a connection between the output port of one device and the input port of another.
MidiDeviceInfo	This class contains information to describe a MIDI device.
MidiDeviceInfo.PortInfo	Contains information about an input or output port.
MidiDeviceService	A service that implements a virtual MIDI device.
MidiDeviceStatus	This is an immutable class that describes the current status of a MIDI device's ports.
MidiInputPort	This class is used for sending data to a port on a MIDI device
MidiManager	This class is the public application interface to the MIDI service.
MidiManager.DeviceCallback	Callback class used for clients to receive MIDI device added and removed notifications
MidiManager.OnDeviceOpenedListener	Listener class used for receiving the results of `MidiManager.openDevice(MidiDeviceInfo, OnDeviceOpenedListener, Handler)` and `MidiManager.openBluetoothDevice(BluetoothDevice, OnDeviceOpenedListener, Handler)`
MidiOutputPort	This class is used for receiving data from a port on a MIDI device
MidiReceiver	Interface for sending and receiving data to and from a MIDI device.
MidiSender	Interface provided by a device to allow attaching MidiReceivers to a MIDI device.
MidiUmpDeviceService	A service that implements a virtual MIDI device for Universal MIDI Packets (UMP).
MifareClassic	Provides access to MIFARE Classic properties and I/O operations on a `Tag`.
MifareUltralight	Provides access to MIFARE Ultralight properties and I/O operations on a `Tag`.
Migrator	A migrator class to translate `GenericDocument` from different version of `AppSearchSchema` Make non-backwards-compatible changes will delete all stored documents in old schema.
MimeTypeMap	Two-way map that maps MIME-types to file extensions and vice versa.
MinguoChronology	The Minguo calendar system.
MinguoDate	A date in the Minguo calendar system.
MinguoEra	An era in the Minguo calendar system.
MissingForegroundServiceTypeException	Exception thrown when an app tries to start a foreground `Service` without a type.
MissingFormatArgumentException	Unchecked exception thrown when there is a format specifier which does not have a corresponding argument or if an argument index refers to an argument that does not exist.
MissingFormatWidthException	Unchecked exception thrown when the format width is required.
MissingResourceException	Signals that a resource is missing.
MloLink	Data structure class representing a Wi-Fi Multi-Link Operation (MLO) link This is only used by 802.11be capable devices
MmTelFeature	Base implementation for Voice and SMS (IR-92) and Video (IR-94) IMS support.
MmTelFeature.MmTelCapabilities	Contains the capabilities defined and supported by a MmTelFeature in the form of a Bitmask.
MockAccountManager	This class is deprecated. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockApplication	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockContentProvider	Mock implementation of ContentProvider.
MockContentResolver	An extension of `ContentResolver` that is designed for testing.
MockContext	A mock `Context` class.
MockCursor	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockDialogInterface	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockPackageManager	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockResources	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockService	This class is deprecated. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
ModeAction	Action sent by the user to indicate a change of mode.
ModelDownloadListener	Listener for model download events.
ModelManager	Handles model inference and only support TFLite model inference now.
Modifier	The Modifier class provides `static` methods and constants to decode class and member access modifiers.
ModuleInfo	Information you can retrieve about a particular system module.
Month	A month-of-year, such as 'July'.
MonthDay	A month-day in the ISO-8601 calendar system, such as `--12-03`.
MonthDisplayHelper	Helps answer common questions that come up when displaying a month in a 6 row calendar grid format.
MoreAsserts	This class was deprecated in API level 24. Use Hamcrest matchers instead.
MotionEvent	Object used to report movement (mouse, pen, finger, trackball) events.
MotionEvent.PointerCoords	Transfer object for pointer coordinates.
MotionEvent.PointerProperties	Transfer object for pointer properties.
MotionPredictor	Calculate motion predictions.
MovementMethod	Provides cursor positioning, scrolling and text selection functionality in a `TextView`.
Movie	This class was deprecated in API level 28. Prefer `AnimatedImageDrawable`.
MtpConstants	A class containing constants in the MTP and PTP specifications.
MtpDevice	This class represents an MTP or PTP device connected on the USB host bus.
MtpDeviceInfo	This class encapsulates information about an MTP device.
MtpEvent	This class encapsulates information about a MTP event.
MtpObjectInfo	This class encapsulates information about an object on an MTP device.
MtpObjectInfo.Builder	Builds a new object info instance.
MtpStorageInfo	This class encapsulates information about a storage unit on an MTP device.
MultiAutoCompleteTextView	An editable text view, extending `AutoCompleteTextView`, that can show completion suggestions for the substring of the text where the user is typing instead of necessarily for the entire thing.
MultiAutoCompleteTextView.CommaTokenizer	This simple Tokenizer can be used for lists where the items are separated by a comma and one or more spaces.
MultiAutoCompleteTextView.Tokenizer
MulticastChannel	A network channel that supports Internet Protocol (IP) multicasting.
MulticastSocket	The multicast datagram socket class is useful for sending and receiving IP multicast packets.
MultiResolutionImageReader	The MultiResolutionImageReader class wraps a group of `ImageReaders` with the same format and different sizes, source camera Id, or camera sensor modes.
MultiResolutionStreamConfigurationMap	Immutable class to store the information of the multi-resolution streams supported by the camera device.
MultiResolutionStreamInfo	A utility class describing the properties of one stream of fixed-size image buffers backing a multi-resolution image stream.
MultiSelectListPreference	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
MultiTapKeyListener	This is the standard key listener for alphabetic input on 12-key keyboards.
MutableBoolean	This class was deprecated in API level 28. This class will be removed from a future version of the Android API.
MutableByte	This class was deprecated in API level 28. This class will be removed from a future version of the Android API.
MutableCallSite	A `MutableCallSite` is a `CallSite` whose target variable behaves like an ordinary field.
MutableChar	This class was deprecated in API level 28. This class will be removed from a future version of the Android API.
MutableContextWrapper	Special version of `ContextWrapper` that allows the base context to be modified after it is initially set.
MutableDouble	This class was deprecated in API level 28. This class will be removed from a future version of the Android API.
MutableFloat	This class was deprecated in API level 28. This class will be removed from a future version of the Android API.
MutableInt	This class was deprecated in API level 28. This class will be removed from a future version of the Android API.
MutableKeyValueStore	An interface to a read-write key-value store.
MutableLong	This class was deprecated in API level 28. This class will be removed from a future version of the Android API.
MutableShort	This class was deprecated in API level 28. This class will be removed from a future version of the Android API.

N

NamedNodeMap	Objects implementing the `NamedNodeMap` interface are used to represent collections of nodes that can be accessed by name.
NamedParameterSpec	This class is used to specify any algorithm parameters that are determined by a standard name.
NameList	The `NameList` interface provides the abstraction of an ordered collection of parallel pairs of name and namespace values (which could be null values), without defining or constraining how this collection is implemented.
NamespaceContext	Interface for read only XML Namespace context processing.
NamespaceSupport	Encapsulate Namespace logic for use by applications using SAX, or internally by SAX drivers.
Native	Indicates that a field defining a constant value may be referenced from native code.
NativeActivity	Convenience for implementing an activity that will be implemented purely in native code.
NavigableMap<K, V>	A `SortedMap` extended with navigation methods returning the closest matches for given search targets.
NavigableSet<E>	A `SortedSet` extended with navigation methods reporting closest matches for given search targets.
NClob	The mapping in the Java^TM programming language for the SQL `NCLOB` type.
Ndef	Provides access to NDEF content and operations on a `Tag`.
NdefFormatable	Provide access to NDEF format operations on a `Tag`.
NdefMessage	Represents an immutable NDEF Message.
NdefRecord	Represents an immutable NDEF Record.
NegativeArraySizeException	Thrown if an application tries to create an array with negative size.
NeighboringCellInfo	This class was deprecated in API level 29. This class should not be used by any app targeting `Android Q` or higher. Instead callers should use `CellInfo`.
NetPermission	Legacy security code; do not use.
Network	Identifies a `Network`.
NetworkCapabilities	Representation of the capabilities of an active network.
NetworkChannel	A channel to a network socket.
NetworkErrorException
NetworkEvent	An abstract class that represents a network event.
NetworkEvent	Media network event.
NetworkEvent.Builder	A builder for `NetworkEvent`
NetworkException	Exception passed to `UrlRequest.Callback.onFailed()` when the HTTP stack fails to process a network request.
NetworkInfo	This class was deprecated in API level 29. Callers should instead use the `ConnectivityManager.NetworkCallback` API to learn about connectivity changes, or switch to use `ConnectivityManager#getNetworkCapabilities` or `ConnectivityManager#getLinkProperties` to get information synchronously. Keep in mind that while callbacks are guaranteed to be called for every event in order, synchronous calls have no such constraints, and as such it is unadvisable to use the synchronous methods inside the callbacks as they will often not offer a view of networking that is consistent (that is: they may return a past or a future state with respect to the event being processed by the callback). Instead, callers are advised to only use the arguments of the callbacks, possibly memorizing the specific bits of information they need to keep from one callback to another.
NetworkInfo.DetailedState	This enum was deprecated in API level 29. See `NetworkInfo`.
NetworkInfo.State	This enum was deprecated in API level 29. See `NetworkInfo`.
NetworkInterface	This class represents a Network Interface made up of a name, and a list of IP addresses assigned to this interface.
NetworkOnMainThreadException	The exception that is thrown when an application attempts to perform a networking operation on its main thread.
NetworkRegistrationInfo	Description of a mobile network registration info
NetworkRequest	An object describing a network that the application is interested in.
NetworkRequest.Builder	Builder used to create `NetworkRequest` objects.
NetworkScan	The caller of `TelephonyManager#requestNetworkScan(NetworkScanRequest, Executor, NetworkScanCallback)` will receive an instance of `NetworkScan`, which contains a callback method `stopScan()` for stopping the in-progress scan.
NetworkScanRequest	Defines a request to perform a network scan.
NetworkSecurityPolicy	Network security policy.
NetworkSliceInfo	Represents a S-NSSAI as defined in 3GPP TS 24.501, which represents a network slice.
NetworkSliceInfo.Builder	Provides a convenient way to set the fields of a `NetworkSliceInfo` when creating a new instance.
NetworkSlicingConfig	Represents a slicing configuration
NetworkSpecifier	Describes specific properties of a requested network for use in a `NetworkRequest`.
NetworkStats	Class providing enumeration over buckets of network usage statistics.
NetworkStats.Bucket	Buckets are the smallest elements of a query result.
NetworkStatsManager	Provides access to network usage history and statistics.
NetworkStatsManager.UsageCallback	Base class for usage callbacks.
NetworkViolation
NfcA	Provides access to NFC-A (ISO 14443-3A) properties and I/O operations on a `Tag`.
NfcAdapter	Represents the local NFC adapter.
NfcAdapter.CreateBeamUrisCallback	This interface was deprecated in API level 29. this feature is removed. File sharing can work using other technology like Bluetooth.
NfcAdapter.CreateNdefMessageCallback	This interface was deprecated in API level 29. this feature is removed. File sharing can work using other technology like Bluetooth.
NfcAdapter.OnNdefPushCompleteCallback	This interface was deprecated in API level 29. this feature is removed. File sharing can work using other technology like Bluetooth.
NfcAdapter.OnTagRemovedListener	A callback that is invoked when a tag is removed from the field.
NfcAdapter.ReaderCallback	A callback to be invoked when the system finds a tag while the foreground activity is operating in reader mode.
NfcAntennaInfo	Contains information on all available Nfc antennas on an Android device as well as information on the device itself in relation positioning of the antennas.
NfcB	Provides access to NFC-B (ISO 14443-3B) properties and I/O operations on a `Tag`.
NfcBarcode	Provides access to tags containing just a barcode.
NfcEvent	Wraps information associated with any NFC event.
NfcF	Provides access to NFC-F (JIS 6319-4) properties and I/O operations on a `Tag`.
NfcFCardEmulation	This class can be used to query the state of NFC-F card emulation services.
NfcManager	High level manager used to obtain an instance of an `NfcAdapter`.
NfcV	Provides access to NFC-V (ISO 15693) properties and I/O operations on a `Tag`.
NinePatch	The NinePatch class permits drawing a bitmap in nine or more sections.
NinePatchDrawable	A resizeable bitmap, with stretchable areas that you define.
NoAuthenticationKeyAvailableException	Thrown if no dynamic authentication keys are available.
NoClassDefFoundError	Thrown if the Java Virtual Machine or a `ClassLoader` instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the `new` expression) and no definition of the class could be found.
NoConnectionPendingException	Unchecked exception thrown when the `finishConnect` method of a `SocketChannel` is invoked without first successfully invoking its `connect` method.
NoCopySpan	This interface should be added to a span object that should not be copied into a new Spanned when performing a slice or copy operation on the original Spanned it was placed in.
NoCopySpan.Concrete	Convenience equivalent for when you would just want a new Object() for a span but want it to be no-copy.
Node	The `Node` interface is the primary datatype for the entire Document Object Model.
NodeChangeEvent	An event emitted by a `Preferences` node to indicate that a child of that node has been added or removed.
NodeChangeListener	A listener for receiving preference node change events.
NodeList	The `NodeList` interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented.
NoiseSuppressor	Noise Suppressor (NS).
NonReadableChannelException	Unchecked exception thrown when an attempt is made to read from a channel that was not originally opened for reading.
NonSdkApiUsedViolation	Subclass of `Violation` that is used when a process accesses a non SDK API.
NonWritableChannelException	Unchecked exception thrown when an attempt is made to write to a channel that was not originally opened for writing.
Normalizer	Old Unicode normalization API.
Normalizer	This class provides the method `normalize` which transforms Unicode text into an equivalent composed or decomposed form, allowing for easier sorting and searching of text.
Normalizer.Form	This enum provides constants of the four Unicode normalization forms that are described in Unicode Standard Annex #15 — Unicode Normalization Forms and two methods to access them.
Normalizer.QuickCheckResult	Result values for quickCheck().
Normalizer2	Unicode normalization functionality for standard Unicode normalization or for using custom mapping tables.
Normalizer2.Mode	Constants for normalization modes.
NoRouteToHostException	Signals that an error occurred while attempting to connect a socket to a remote address and port.
NoSuchAlgorithmException	This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.
NoSuchElementException	Thrown by various accessor methods to indicate that the element being requested does not exist.
NoSuchFieldError	Thrown if an application tries to access or modify a specified field of an object, and that object no longer has that field.
NoSuchFieldException	Signals that the class doesn't have a field of a specified name.
NoSuchFileException	Checked exception thrown when an attempt is made to access a file that does not exist.
NoSuchMethodError	Thrown if an application tries to call a specified method of a class (either static or instance), and that class no longer has a definition of that method.
NoSuchMethodException	Thrown when a particular method cannot be found.
NoSuchPaddingException	This exception is thrown when a particular padding mechanism is requested but is not available in the environment.
NoSuchPropertyException	Thrown when code requests a `Property` on a class that does not expose the appropriate method or field.
NoSuchProviderException	This exception is thrown when a particular security provider is requested but is not available in the environment.
NotActiveException	Thrown when serialization or deserialization is not active.
Notation	A class that defines the notation style to be used when formatting numbers in NumberFormatter.
Notation	This interface represents a notation declared in the DTD.
NotDirectoryException	Checked exception thrown when a file system operation, intended for a directory, fails because the file is not a directory.
Notification	A class that represents how a persistent notification is to be presented to the user using the `NotificationManager`.
Notification.Action	Structure to encapsulate a named action that can be shown as part of this notification.
Notification.Action.Builder	Builder class for `Action` objects.
Notification.Action.Extender	Extender interface for use with `Builder#extend`.
Notification.Action.WearableExtender	Wearable extender for notification actions.
Notification.BigPictureStyle	Helper class for generating large-format notifications that include a large image attachment.
Notification.BigTextStyle	Helper class for generating large-format notifications that include a lot of text.
Notification.BubbleMetadata	Encapsulates the information needed to display a notification as a bubble.
Notification.BubbleMetadata.Builder	Builder to construct a `BubbleMetadata` object.
Notification.Builder	Builder class for `Notification` objects.
Notification.CallStyle	Helper class for generating large-format notifications that include a large image attachment.
Notification.CarExtender	Helper class to add Android Auto extensions to notifications.
Notification.CarExtender.Builder	Builder class for `CarExtender.UnreadConversation` objects.
Notification.CarExtender.UnreadConversation	A class which holds the unread messages from a conversation.
Notification.DecoratedCustomViewStyle	Notification style for custom views that are decorated by the system Instead of providing a notification that is completely custom, a developer can set this style and still obtain system decorations like the notification header with the expand affordance and actions.
Notification.DecoratedMediaCustomViewStyle	Notification style for media custom views that are decorated by the system Instead of providing a media notification that is completely custom, a developer can set this style and still obtain system decorations like the notification header with the expand affordance and actions.
Notification.Extender	Extender interface for use with `Builder#extend`.
Notification.InboxStyle	Helper class for generating large-format notifications that include a list of (up to 5) strings.
Notification.MediaStyle	Notification style for media playback notifications.
Notification.MessagingStyle	Helper class for generating large-format notifications that include multiple back-and-forth messages of varying types between any number of people.
Notification.MessagingStyle.Message
Notification.Style	An object that can apply a rich notification style to a `Notification.Builder` object.
Notification.TvExtender	Helper class to add Android TV extensions to notifications.
Notification.WearableExtender	Helper class to add wearable extensions to notifications.
NotificationChannel	A representation of settings that apply to a collection of similarly themed notifications.
NotificationChannelGroup	A grouping of related notification channels.
NotificationListenerService	A service that receives calls from the system when new notifications are posted or removed, or their ranking changed.
NotificationListenerService.Ranking	Stores ranking related information on a currently active notification.
NotificationListenerService.RankingMap	Provides access to ranking information on currently active notifications.
NotificationManager	Class to notify the user of events that happen.
NotificationManager.Policy	Notification policy configuration.
NotLinkException	Checked exception thrown when a file system operation fails because a file is not a symbolic link.
NotOwnerException	This class was deprecated in API level 33. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.Policy` and related classes since 1.2.
NotProvisionedException	Exception thrown when an operation on a MediaDrm object is attempted and the device does not have a certificate.
NotSerializableException	Thrown when an instance is required to have a Serializable interface.
NotYetBoundException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a server socket channel that is not yet bound.
NotYetConnectedException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a socket channel that is not yet connected.
NsdManager	The Network Service Discovery Manager class provides the API to discover services on a network.
NsdManager.DiscoveryListener	Interface for callback invocation for service discovery
NsdManager.RegistrationListener	Interface for callback invocation for service registration
NsdManager.ResolveListener	Callback for use with `NsdManager#resolveService` to resolve the service info and use with `NsdManager#stopServiceResolution` to stop resolution.
NsdManager.ServiceInfoCallback	Callback to listen to service info updates.
NsdServiceInfo	A class representing service information for network service discovery
NullCipher	The NullCipher class is a class that provides an "identity cipher" -- one that does not transform the plain text.
NullPointerException	Thrown when an application attempts to use `null` in a case where an object is required.
Number	The abstract class `Number` is the superclass of platform classes representing numeric values that are convertible to the primitive types `byte`, `double`, `float`, `int`, `long`, and `short`.
NumberFormat	[icu enhancement] ICU's replacement for `NumberFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
NumberFormat	`NumberFormat` is the abstract base class for all number formats.
NumberFormat.Field	The instances of this inner class are used as attribute keys and values in AttributedCharacterIterator that NumberFormat.formatToCharacterIterator() method returns.
NumberFormat.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `NumberFormat.formatToCharacterIterator` and as field identifiers in `FieldPosition`.
NumberFormatException	Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format.
NumberFormatter	All-in-one formatter for localized numbers, currencies, and units.
NumberFormatter.DecimalSeparatorDisplay	An enum declaring how to render the decimal separator.
NumberFormatter.GroupingStrategy	An enum declaring the strategy for when and how to display grouping separators (i.e., the separator, often a comma or period, after every 2-3 powers of ten).
NumberFormatter.RoundingPriority	An enum declaring how to resolve conflicts between maximum fraction digits and maximum significant digits.
NumberFormatter.SignDisplay	An enum declaring how to denote positive and negative numbers.
NumberFormatter.TrailingZeroDisplay	An enum declaring how to render trailing zeros.
NumberFormatter.UnitWidth	An enum declaring how to render units, including currencies.
NumberFormatterSettings<T extends NumberFormatterSettings<?>>	An abstract base class for specifying settings related to number formatting.
NumberingSystem	`NumberingSystem` is the base class for all number systems.
NumberKeyListener	For numeric text entry As for all implementations of `KeyListener`, this class is only concerned with hardware keyboards.
NumberPicker	A widget that enables the user to select a number from a predefined range.
NumberPicker.Formatter	Interface used to format current value into a string for presentation.
NumberPicker.OnScrollListener	Interface to listen for the picker scroll state.
NumberPicker.OnValueChangeListener	Interface to listen for changes of the current value.
NumberRangeFormatter	The main entrypoint to the formatting of ranges of numbers, including currencies and other units of measurement.
NumberRangeFormatter.RangeCollapse	Defines how to merge fields that are identical across the range sign.
NumberRangeFormatter.RangeIdentityFallback	Defines the behavior when the two numbers in the range are identical after rounding.
NumberRangeFormatter.RangeIdentityResult	Used in the result class FormattedNumberRange to indicate to the user whether the numbers formatted in the range were equal or not, and whether or not the identity fallback was applied.
NumberRangeFormatterSettings<T extends NumberRangeFormatterSettings<?>>	An abstract base class for specifying settings related to number formatting.
NumericShaper	The `NumericShaper` class is used to convert Latin-1 (European) digits to other Unicode decimal digits.
NumericShaper.Range	A `NumericShaper.Range` represents a Unicode range of a script having its own decimal digits.
NutritionRecord	Captures what nutrients were consumed as part of a meal or a food item.
NutritionRecord.Builder	Builder class for `NutritionRecord`

O

OAEPParameterSpec	This class specifies the set of parameters used with OAEP Padding, as defined in the PKCS #1 standard.
ObbInfo	Basic information about a Opaque Binary Blob (OBB) that reflects the info from the footer on the OBB file.
ObbScanner	Class to scan Opaque Binary Blob (OBB) files.
ObjDoubleConsumer<T>	Represents an operation that accepts an object-valued and a `double`-valued argument, and returns no result.
Object	Class `Object` is the root of the class hierarchy.
ObjectAnimator	This subclass of `ValueAnimator` provides support for animating properties on target objects.
ObjectInput	ObjectInput extends the DataInput interface to include the reading of objects.
ObjectInputStream	An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
ObjectInputStream.GetField	Provide access to the persistent fields read from the input stream.
ObjectInputValidation	Callback interface to allow validation of objects within a graph.
ObjectMethods	Bootstrap methods for state-driven implementations of core methods, including `Object#equals(Object)`, `Object#hashCode()`, and `Object#toString()`.
ObjectOutput	ObjectOutput extends the DataOutput interface to include writing of objects.
ObjectOutputStream	An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
ObjectOutputStream.PutField	Provide programmatic access to the persistent fields to be written to ObjectOutput.
Objects	This class consists of `static` utility methods for operating on objects, or checking certain conditions before operation.
ObjectStreamClass	Serialization's descriptor for classes.
ObjectStreamConstants	Constants written into the Object Serialization Stream.
ObjectStreamException	Superclass of all exceptions specific to Object Stream classes.
ObjectStreamField	A description of a Serializable field from a Serializable class.
ObjIntConsumer<T>	Represents an operation that accepts an object-valued and a `int`-valued argument, and returns no result.
ObjLongConsumer<T>	Represents an operation that accepts an object-valued and a `long`-valued argument, and returns no result.
Observable<T>	Provides methods for registering or unregistering arbitrary observers in an `ArrayList`.
Observable	This class was deprecated in API level 33. This class and the `Observer` interface have been deprecated. The event model supported by `Observer` and `Observable` is quite limited, the order of notifications delivered by `Observable` is unspecified, and state changes are not in one-for-one correspondence with notifications. For a richer event model, consider using the `java.beans` package. For reliable and ordered messaging among threads, consider using one of the concurrent data structures in the `java.util.concurrent` package. For reactive streams style programming, see the `Flow` API.
Observer	This interface was deprecated in API level 33. This interface has been deprecated. See the `Observable` class for further information.
ObserverCallback	An interface which apps can implement to subscribe to notifications of changes to AppSearch data.
ObserverSpec	Configures the types, namespaces and other properties that `ObserverCallback` instances match against.
ObserverSpec.Builder	Builder for `ObserverSpec` instances.
OffHostApduService	OffHostApduService is a convenience `Service` class that can be extended to describe one or more NFC applications that are residing off-host, for example on an embedded secure element or a UICC.
OffsetDateTime	A date-time with an offset from UTC/Greenwich in the ISO-8601 calendar system, such as `2007-12-03T10:15:30+01:00`.
OffsetTime	A time with an offset from UTC/Greenwich in the ISO-8601 calendar system, such as `10:15:30+01:00`.
OisSample	Immutable class to store an `optical image stabilization sample`.
OnAccountsUpdateListener	An interface that contains the callback used by the AccountManager
OnBackAnimationCallback	Interface for applications to register back animation callbacks along their custom back handling.
OnBackInvokedCallback	Callback allowing applications to handle back events in place of the system.
OnBackInvokedDispatcher	Dispatcher to register `OnBackInvokedCallback` instances for handling back invocations.
OnClickAction	Class used to define an action to be performed when a child view in a `presentation` is clicked.
OnDevicePersonalizationException	Exception thrown by OnDevicePersonalization APIs.
OnDevicePersonalizationManager	OnDevicePersonalizationManager provides APIs for apps to load an `IsolatedService` in an isolated process and interact with it.
OnDevicePersonalizationManager.ExecuteResult	The result of a call to `OnDevicePersonalizationManager#execute(ComponentName, PersistableBundle, Executor, OutcomeReceiver)`
OnNmeaMessageListener	Used for receiving NMEA sentences from the GNSS.
OnObbStateChangeListener	Used for receiving notifications from `StorageManager` about OBB file states.
OnReceiveContentListener	Listener for apps to implement handling for insertion of content.
OpcodeInfo	Information about Dalvik opcodes.
Opcodes	A list of all normal (not implementation-specific) Dalvik opcodes.
OpenableColumns	These are standard columns for openable URIs.
OpenOption	An object that configures how to open or create a file.
OperationApplicationException	Thrown when an application of a `ContentProviderOperation` fails due the specified constraints.
OperationCanceledException
OperationCanceledException	An exception type that is thrown when an operation in progress is canceled.
Optional<T>	A container object which may or may not contain a non-`null` value.
OptionalDataException	Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream.
OptionalDouble	A container object which may or may not contain a `double` value.
OptionalInt	A container object which may or may not contain an `int` value.
OptionalLong	A container object which may or may not contain a `long` value.
OrientationEventListener	Helper class for receiving notifications from the SensorManager when the orientation of the device has changed.
OrientationListener	This class was deprecated in API level 3. use `OrientationEventListener` instead. This class internally uses the OrientationEventListener.
OrientedBoundingBox	An oriented bounding box
Os	Access to low-level system functionality.
OsConstants	Constants and helper functions for use with `Os`.
OutcomeReceiver<R, E extends Throwable>	Callback interface intended for use when an asynchronous operation may result in a failure.
Outline	Defines a simple shape, used for bounding graphical regions.
OutOfMemoryError	Thrown when the Java Virtual Machine cannot allocate an object because it is out of memory, and no more memory could be made available by the garbage collector.
Output<T>	Simple struct-like class for output parameters.
OutputConfiguration	A class for describing camera output, which contains a `Surface` and its specific configuration for creating capture session.
OutputKeys	Provides string constants that can be used to set output properties for a Transformer, or to retrieve output properties from a Transformer or Templates object.
OutputStream	This abstract class is the superclass of all classes representing an output stream of bytes.
OutputStreamWriter	An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified `charset`.
OvalShape	Defines an oval shape.
OverlappingFileLockException	Unchecked exception thrown when an attempt is made to acquire a lock on a region of a file that overlaps a region already locked by the same Java virtual machine, or when another thread is already waiting to lock an overlapping region of the same file.
OverlayIdentifier	A key used to uniquely identify a Runtime Resource Overlay (RRO).
OverlayInfo	An immutable information about an overlay.
OverlayManager	OverlayManager gives apps the ability to create an `OverlayManagerTransaction` to maintain the overlays and list the registered fabricated runtime resources overlays(FRROs).
OverlayManagerTransaction	A container for a batch of requests to the OverlayManager.
OverlayProperties	Provides supported overlay properties of the device.
Override	Indicates that a method declaration is intended to override a method declaration in a supertype.
OverScroller	This class encapsulates scrolling with the ability to overshoot the bounds of a scrolling operation.
OvershootInterpolator	An interpolator where the change flings forward and overshoots the last value then comes back.
OvulationTestRecord	Each record represents the result of an ovulation test.
OvulationTestRecord.Builder	Builder class for `OvulationTestRecord`
OvulationTestRecord.OvulationTestResult	Identifier for Ovulation Test Result
Owner	This interface was deprecated in API level 33. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.Policy` and related classes since 1.2.
OxygenSaturationRecord	Captures the amount of oxygen circulating in the blood, measured as a percentage of oxygen-saturated hemoglobin.
OxygenSaturationRecord.Builder	Builder class for `OxygenSaturationRecord`

P

Pack200	Transforms a JAR file to or from a packed stream in Pack200 format.
Pack200.Packer	The packer engine applies various transformations to the input JAR file, making the pack stream highly compressible by a compressor such as gzip or zip.
Pack200.Unpacker	The unpacker engine converts the packed stream to a JAR file.
Package	`Package` objects contain version information about the implementation and specification of a Java package.
PackageHealthStats	Keys for `HealthStats` returned from `HealthStats.getStats(int)` with the `UidHealthStats.STATS_PACKAGES` key.
PackageIdentifier	This class represents a uniquely identifiable package.
PackageInfo	Overall information about the contents of a package.
PackageInstaller	Offers the ability to install, upgrade, and remove applications on the device.
PackageInstaller.InstallConstraints	A class to encapsulate constraints for installation.
PackageInstaller.InstallConstraints.Builder	Builder class for constructing `InstallConstraints`.
PackageInstaller.InstallConstraintsResult	The callback result of `PackageInstaller.checkInstallConstraints(java.util.List, android.content.pm.PackageInstaller.InstallConstraints, java.util.concurrent.Executor, java.util.function.Consumer)`.
PackageInstaller.PreapprovalDetails	Details for requesting the pre-commit install approval.
PackageInstaller.PreapprovalDetails.Builder	A builder for `PreapprovalDetails`
PackageInstaller.Session	An installation that is being actively staged.
PackageInstaller.SessionCallback	Events for observing session lifecycle.
PackageInstaller.SessionInfo	Details for an active install session.
PackageInstaller.SessionParams	Parameters for creating a new `PackageInstaller.Session`.
PackageInstaller.UnarchivalState	Used to communicate the unarchival state in `PackageInstaller.reportUnarchivalState(UnarchivalState)`.
PackageItemInfo	Base class containing information common to all package items held by the package manager.
PackageItemInfo.DisplayNameComparator
PackageManager	Class for retrieving various kinds of information related to the application packages that are currently installed on the device.
PackageManager.ApplicationInfoFlags	Specific flags used for retrieving application info.
PackageManager.ComponentEnabledSetting	The class containing the enabled setting of a package component.
PackageManager.ComponentInfoFlags	Specific flags used for retrieving component info.
PackageManager.NameNotFoundException	This exception is thrown when a given package, application, or component name cannot be found.
PackageManager.OnChecksumsReadyListener	Listener that gets notified when checksums are available.
PackageManager.PackageInfoFlags	Specific flags used for retrieving package info.
PackageManager.Property	A property value set within the manifest.
PackageManager.ResolveInfoFlags	Specific flags used for retrieving resolve info.
PackagePolicy	A generic class that defines which APK packages are in scope for some device policy.
PackageStats	This class was deprecated in API level 26. this class is an orphan that could never be obtained from a valid public API. If you need package storage statistics use the new `StorageStatsManager` APIs.
PageMatchBounds	Represents the bounds of a single search match on a page of the PDF document.
PageRange	Represents a range of pages.
PageSelection	Represents the list of selected content on a particular page of the PDF document.
Paint	The Paint class holds the style and color information about how to draw geometries, text and bitmaps.
Paint.Align	Align specifies how drawText aligns its text relative to the [x,y] coordinates.
Paint.Cap	The Cap specifies the treatment for the beginning and ending of stroked lines and paths.
Paint.FontMetrics	Class that describes the various metrics for a font at a given text size.
Paint.FontMetricsInt	Convenience method for callers that want to have FontMetrics values as integers.
Paint.Join	The Join specifies the treatment where lines and curve segments join on a stroked path.
Paint.Style	The Style specifies if the primitive being drawn is filled, stroked, or both (in the same color).
PaintDrawable	Drawable that draws its bounds in the given paint, with optional rounded corners.
PaintFlagsDrawFilter
Pair<F, S>	Container to ease passing around a tuple of two objects.
ParagraphStyle	The classes that affect paragraph-level text formatting implement this interface.
Parameter	Information about method parameters.
ParameterizedType	ParameterizedType represents a parameterized type such as Collection<String>.
ParameterMetaData	An object that can be used to get information about the types and properties for each parameter marker in a `PreparedStatement` object.
Parcel	Container for a message (data and object references) that can be sent through an IBinder.
Parcelable	Interface for classes whose instances can be written to and restored from a `Parcel`.
Parcelable.ClassLoaderCreator<T>	Specialization of `Creator` that allows you to receive the ClassLoader the object is being created in.
Parcelable.Creator<T>	Interface that must be implemented and provided as a public CREATOR field that generates instances of your Parcelable class from a Parcel.
ParcelableColorSpace	A `Parcelable` wrapper for a `ColorSpace`.
ParcelablePeerHandle	A Parcelable `PeerHandle`.
ParcelableSpan	A special kind of Parcelable for objects that will serve as text spans.
ParcelFileDescriptor	The FileDescriptor returned by `Parcel#readFileDescriptor`, allowing you to close it when done with it.
ParcelFileDescriptor.AutoCloseInputStream	An InputStream you can create on a ParcelFileDescriptor, which will take care of calling `ParcelFileDescriptor.close()` for you when the stream is closed.
ParcelFileDescriptor.AutoCloseOutputStream	An OutputStream you can create on a ParcelFileDescriptor, which will take care of calling `ParcelFileDescriptor.close()` for you when the stream is closed.
ParcelFileDescriptor.FileDescriptorDetachedException	Exception that indicates that the file descriptor was detached.
ParcelFileDescriptor.OnCloseListener	Callback indicating that a ParcelFileDescriptor has been closed.
ParcelFormatException	The contents of a Parcel (usually during unmarshalling) does not contain the expected data.
ParcelUuid	This class is a Parcelable wrapper around `UUID` which is an immutable representation of a 128-bit universally unique identifier.
ParseException	Thrown when parsing failed.
ParseException	Signals that an error has been reached unexpectedly while parsing.
ParsePosition	`ParsePosition` is a simple class used by `Format` and its subclasses to keep track of the current position during parsing.
Parser	This interface was deprecated in API level 9. This interface has been replaced by the SAX2 `XMLReader` interface, which includes Namespace support.
ParserAdapter	Adapt a SAX1 Parser as a SAX2 XMLReader.
ParserConfigurationException	Indicates a serious configuration error.
ParserFactory	This class was deprecated in API level 9. This class works with the deprecated `Parser` interface.
PasspointConfiguration	Class representing Passpoint configuration.
PasswordAuthentication	The class PasswordAuthentication is a data holder that is used by Authenticator.
PasswordCallback	Underlying security services instantiate and pass a `PasswordCallback` to the `handle` method of a `CallbackHandler` to retrieve password information.
PasswordTransformationMethod
Path	The Path class encapsulates compound (multiple contour) geometric paths consisting of straight line segments, quadratic curves, and cubic curves.
Path	An object that may be used to locate a file in a file system.
Path.Direction	Specifies how closed shapes (e.g. rects, ovals) are oriented when they are added to a path.
Path.FillType	Enum for the ways a path may be filled.
Path.Op	The logical operations that can be performed when combining two paths.
PathClassLoader	Provides a simple `ClassLoader` implementation that operates on a list of files and directories in the local file system, but does not attempt to load classes from the network.
PathDashPathEffect
PathDashPathEffect.Style
PathEffect	PathEffect is the base class for objects in the Paint that affect the geometry of a drawing primitive before it is transformed by the canvas' matrix and drawn.
PathInterpolator	An interpolator that can traverse a Path that extends from `Point` `(0, 0)` to `(1, 1)`.
PathIterator	`PathIterator` can be used to query a given `Path` object, to discover its operations and point values.
PathIterator.Segment	This class holds the data for a given segment in a path, as returned by `PathIterator.next()`.
PathMatcher	An interface that is implemented by objects that perform match operations on paths.
PathMeasure
PathMotion	This base class can be extended to provide motion along a Path to Transitions.
PathPermission	Description of permissions needed to access a particular path in a `ProviderInfo`.
Paths	This class consists exclusively of static methods that return a `Path` by converting a path string or `URI`.
PathShape	Creates geometric paths, utilizing the `Path` class.
Pattern	A compiled representation of a regular expression.
PatternMatcher	A simple pattern matcher, which is safe to use on untrusted data: it does not provide full reg-exp support, only simple globbing that can not be used maliciously.
PatternPathMotion	A PathMotion that takes a Path pattern and applies it to the separation between two points.
Patterns	Commonly used regular expression patterns.
PatternSyntaxException	Unchecked exception thrown to indicate a syntax error in a regular-expression pattern.
PBEKey	The interface to a PBE key.
PBEKeySpec	A user-chosen password that can be used with password-based encryption (PBE).
PBEParameterSpec	This class specifies the set of parameters used with password-based encryption (PBE), as defined in the PKCS #5 standard.
PdfDocument	This class enables generating a PDF document from native Android content.
PdfDocument.Page	This class represents a PDF document page.
PdfDocument.PageInfo	This class represents meta-data that describes a PDF `Page`.
PdfDocument.PageInfo.Builder	Builder for creating a `PageInfo`.
PdfPageGotoLinkContent	Represents the content associated with a goto link on a page in the PDF document.
PdfPageGotoLinkContent.Destination	Represents the content associated with the destination where a goto link is directing
PdfPageImageContent	Represents the content associated with an image type in a page of a PDF document.
PdfPageLinkContent	Represents the bounds and link on a page of the PDF document.
PdfPageTextContent	Represents a continuous stream of text in a page of a PDF document in the order of viewing.
PdfRenderer	This class enables rendering a PDF document and selecting, searching, fast scrolling, annotations, etc.
PdfRenderer.Page	This class represents a PDF document page for rendering.
PdfRendererPreV	This class enables rendering a PDF document and selecting, searching, fast scrolling, annotations, etc from Android R till Android U.
PdfRendererPreV.Page	This class represents a PDF document page for rendering.
PeerHandle	Opaque object used to represent a Wi-Fi Aware peer.
PendingIntent	A description of an Intent and target action to perform with it.
PendingIntent.CanceledException	Exception thrown when trying to send through a PendingIntent that has been canceled or is otherwise no longer able to execute the request.
PendingIntent.OnFinished	Callback interface for discovering when a send operation has completed.
PeopleManager	This class allows interaction with conversation and people data.
PerBuyerDecisionLogic	The override object for decision logic JS per buyer for `SignedContextualAds`.
Percentage	Represents a value as a percentage, not a fraction - for example 100%, 89.62%, etc.
PerformanceHintManager	The PerformanceHintManager allows apps to send performance hint to system.
PerformanceHintManager.Session	A Session represents a group of threads with an inter-related workload such that hints for their performance should be considered as a unit.
PerformanceTestCase	This interface was deprecated in API level 24. Use AndroidJUnitRunner instead. New tests should be written using the Android Testing Support Library.
PerformanceTestCase.Intermediates	Callbacks for `PerformanceTestCase`.
Period	A date-based amount of time in the ISO-8601 calendar system, such as '2 years, 3 months and 4 days'.
PeriodicAdvertisingParameters	The `PeriodicAdvertisingParameters` provide a way to adjust periodic advertising preferences for each Bluetooth LE advertising set.
PeriodicAdvertisingParameters.Builder
PeriodicSync	Value type that contains information about a periodic sync.
Permission	Android doesn't support `SecurityManager`.
Permission	This interface was deprecated in API level 33. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.Policy` and related classes since 1.2.
PermissionCollection	Android doesn't support `SecurityManager`.
PermissionGroupInfo	Information you can retrieve about a particular security permission group known to the system.
PermissionInfo	Information you can retrieve about a particular security permission known to the system.
PermissionRequest	This class defines a permission request and is used when web content requests access to protected resources.
Permissions	Android doesn't support `SecurityManager`.
PersistableBundle	A mapping from String keys to values of various types.
PersistAdSelectionResultRequest	Represents a request containing the seller, the ad selection data id and data.
PersistAdSelectionResultRequest.Builder	Builder for `PersistAdSelectionResultRequest` objects.
PersistentDataBlockManager	Interface to the persistent data partition.
Person	Provides an immutable reference to an entity that appears repeatedly on different surfaces of the platform.
Person.Builder	Builder for the immutable `Person` class.
PersonalizationData	An object that holds personalization data.
PersonalizationData.Builder	A builder for `PersonalizationData`.
PesRequest	A request for PES from broadcast signal.
PesResponse	A response for PES from broadcast signal.
PhantomReference<T>	Phantom reference objects, which are enqueued after the collector determines that their referents may otherwise be reclaimed.
Phaser	A reusable synchronization barrier, similar in functionality to `CyclicBarrier` and `CountDownLatch` but supporting more flexible usage.
PhoneAccount	Represents a distinct method to place or receive a phone call.
PhoneAccount.Builder	Helper class for creating a `PhoneAccount`.
PhoneAccountHandle	The unique identifier for a `PhoneAccount`.
PhoneAccountSuggestion
PhoneNumberFormattingTextWatcher	This class was deprecated in API level 35. This is a thin wrapper on a `libphonenumber` `AsYouTypeFormatter`; it is recommended to use that instead.
PhoneNumberUtils	Various utilities for dealing with phone number strings.
PhoneStateListener	This class was deprecated in API level 31. Use `TelephonyCallback` instead.
PhysicalChannelConfig
Picture	A Picture records drawing calls (via the canvas returned by beginRecording) and can then play them back into Canvas (via `Picture#draw(Canvas)` or `Canvas#drawPicture(Picture)`).For most content (e.g.
PictureDrawable	Drawable subclass that wraps a Picture, allowing the picture to be used wherever a Drawable is supported.
PictureInPictureParams	Represents a set of parameters used to initialize and update an Activity in picture-in-picture mode.
PictureInPictureParams.Builder	Builder class for `PictureInPictureParams` objects.
PictureInPictureUiState	Used by `Activity#onPictureInPictureUiStateChanged(PictureInPictureUiState)`.
PidHealthStats	Keys for `HealthStats` returned from `HealthStats.getStats(int)` with the `UidHealthStats.STATS_PIDS` key.
Pipe	A pair of channels that implements a unidirectional pipe.
Pipe.SinkChannel	A channel representing the writable end of a `Pipe`.
Pipe.SourceChannel	A channel representing the readable end of a `Pipe`.
PipedInputStream	A piped input stream should be connected to a piped output stream; the piped input stream then provides whatever data bytes are written to the piped output stream.
PipedOutputStream	A piped output stream can be connected to a piped input stream to create a communications pipe.
PipedReader	Piped character-input streams.
PipedWriter	Piped character-output streams.
PixelCopy	Provides a mechanisms to issue pixel copy requests to allow for copy operations from `Surface` to `Bitmap`
PixelCopy.OnPixelCopyFinishedListener	Listener for observing the completion of a PixelCopy request.
PixelCopy.Request	Represents a PixelCopy request.
PixelCopy.Request.Builder	A builder to create the complete PixelCopy request, which is then executed by calling `PixelCopy.request(android.view.PixelCopy.Request, java.util.concurrent.Executor, java.util.function.Consumer)` with the built request returned from `build()`
PixelCopy.Result	Contains the result of a PixelCopy request
PixelFormat
PKCS12Attribute	An attribute associated with a PKCS12 keystore entry.
PKCS8EncodedKeySpec	This class represents the ASN.1 encoding of a private key, encoded according to the ASN.1 type `PrivateKeyInfo`.
PKIXBuilderParameters	Parameters used as input for the PKIX `CertPathBuilder` algorithm.
PKIXCertPathBuilderResult	This class represents the successful result of the PKIX certification path builder algorithm.
PKIXCertPathChecker	An abstract class that performs one or more checks on an `X509Certificate`.
PKIXCertPathValidatorResult	This class represents the successful result of the PKIX certification path validation algorithm.
PKIXParameters	Parameters used as input for the PKIX `CertPathValidator` algorithm.
PKIXReason	The `PKIXReason` enumerates the potential PKIX-specific reasons that an X.509 certification path may be invalid according to the PKIX (RFC 5280) standard.
PKIXRevocationChecker	A `PKIXCertPathChecker` for checking the revocation status of certificates with the PKIX algorithm.
PKIXRevocationChecker.Option	Various revocation options that can be specified for the revocation checking mechanism.
PlannedExerciseBlock	Represents a series of `PlannedExerciseStep`.
PlannedExerciseBlock.Builder	Builder of `PlannedExerciseBlock`.
PlannedExerciseSessionRecord	Captures a planned exercise session, also commonly referred to as a training plan.
PlannedExerciseSessionRecord.Builder	Builder class for `PlannedExerciseSessionRecord`.
PlannedExerciseStep	A single step within an `PlannedExerciseBlock` e.g. 8x 60kg barbell squats.
PlannedExerciseStep.Builder	Builder of `PlannedExerciseStep`.
PlatformVpnProfile	PlatformVpnProfile represents a configuration for a platform-based VPN implementation.
PlaybackErrorEvent	Playback error event.
PlaybackErrorEvent.Builder	A builder for `PlaybackErrorEvent`
PlaybackMetrics	This class is used to store playback data.
PlaybackMetrics.Builder	A builder for `PlaybackMetrics`
PlaybackParams	Structure for common playback params.
PlaybackSession	An instance of this class represents a session of media playback used to report playback metrics and events.
PlaybackState	Playback state for a `MediaSession`.
PlaybackState.Builder	Builder for `PlaybackState` objects.
PlaybackState.CustomAction	`CustomActions` can be used to extend the capabilities of the standard transport controls by exposing app specific actions to `MediaControllers`.
PlaybackState.CustomAction.Builder	Builder for `CustomAction` objects.
PlaybackStateEvent	Playback state event.
PlaybackStateEvent.Builder	A builder for `PlaybackStateEvent`
PluginStub	This interface is used to implement plugins in a WebView.
PluralFormat	`PluralFormat` supports the creation of internationalized messages with plural inflection.
PluralRules	Defines rules for mapping non-negative numeric values onto a small set of keywords.
PluralRules.PluralType	Type of plurals and PluralRules.
Point	Point holds two integer coordinates
PointerIcon	Represents an icon that can be used as a mouse pointer.
PointF	PointF holds two float coordinates
PointFEvaluator	This evaluator can be used to perform type interpolation between `PointF` values.
Policy	Android doesn't support `SecurityManager`.
Policy.Parameters
PolicyNode	An immutable valid policy tree node as defined by the PKIX certification path validation algorithm.
PolicyQualifierInfo	An immutable policy qualifier represented by the ASN.1 PolicyQualifierInfo structure.
PolicySpi	This class defines the Service Provider Interface (SPI) for the `Policy` class.
PolicyUpdateReceiver	Base class for implementing a policy update receiver.
PolicyUpdateResult	Class containing the reason for the policy (set from `DevicePolicyManager`) update (e.g.
PollingFrame	Polling Frames represent data about individual frames of an NFC polling loop.
PooledConnection	An object that provides hooks for connection pool management.
PopupMenu	A PopupMenu displays a `Menu` in a modal popup window anchored to a `View`.
PopupMenu.OnDismissListener	Callback interface used to notify the application that the menu has closed.
PopupMenu.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
PopupWindow	This class represents a popup window that can be used to display an arbitrary view.
PopupWindow.OnDismissListener	Listener that is called when this popup window is dismissed.
PorterDuff	This class contains the list of alpha compositing and blending modes that can be passed to `PorterDuffXfermode`, a specialized implementation of `Paint`'s `transfer mode`.
PorterDuff.Mode	The name of the parent class is an homage to the work of Thomas Porter and Tom Duff, presented in their seminal 1984 paper titled "Compositing Digital Images".
PorterDuffColorFilter	A color filter that can be used to tint the source pixels using a single color and a specific `Porter-Duff composite mode`.
PorterDuffXfermode	Specialized implementation of `Paint`'s `transfer mode`.
PortUnreachableException	Signals that an ICMP Port Unreachable message has been received on a connected datagram.
PositionedGlyphs	Text shaping result object for single style text.
PosixFileAttributes	File attributes associated with files on file systems used by operating systems that implement the Portable Operating System Interface (POSIX) family of standards.
PosixFileAttributeView	A file attribute view that provides a view of the file attributes commonly associated with files on file systems used by operating systems that implement the Portable Operating System Interface (POSIX) family of standards.
PosixFilePermission	Defines the bits for use with the `permissions` attribute.
PosixFilePermissions	This class consists exclusively of static methods that operate on sets of `PosixFilePermission` objects.
PostProcessor	Helper interface for adding custom processing to an image.
Power	Represents a unit of power.
PowerManager	This class lets you query and request control of aspects of the device's power state.
PowerManager.OnThermalStatusChangedListener	Listener passed to `PowerManager#addThermalStatusListener` and `PowerManager#removeThermalStatusListener` to notify caller of thermal status has changed.
PowerManager.WakeLock	A wake lock is a mechanism to indicate that your application needs to have the device stay on.
PowerManager.WakeLockStateListener	A listener interface to get notified when the wakelock is enabled/disabled.
PowerMonitor	A PowerMonitor represents either an ODPM rail (on-device power rail monitor) or a modeled energy consumer.
PowerMonitorReadings	A collection of energy measurements from Power Monitors.
PowerRecord	Captures the power generated by the user, e.g. during cycling or rowing with a power meter.
PowerRecord.Builder	Builder class for `PowerRecord`
PowerRecord.PowerRecordSample	Represents a single measurement of power.
PpsMoParser	Utility class for converting OMA-DM (Open Mobile Alliance's Device Management) PPS-MO (PerProviderSubscription Management Object) XML tree to a `PasspointConfiguration` object.
PreciseDataConnectionState	Contains precise data connection state.
Precision	A class that defines the rounding precision to be used when formatting numbers in NumberFormatter.
PrecomputedText	A text which has the character metrics data.
PrecomputedText.Params	The information required for building `PrecomputedText`.
PrecomputedText.Params.Builder	A builder for creating `Params`.
Predicate<T>	Represents a predicate (boolean-valued function) of one argument.
Prediction
Preference	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
Preference.BaseSavedState	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
Preference.OnPreferenceChangeListener	This interface was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
Preference.OnPreferenceClickListener	This interface was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceActivity	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceActivity.Header	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceCategory	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceChangeEvent	An event emitted by a `Preferences` node to indicate that a preference has been added, removed or has had its value changed.
PreferenceChangeListener	A listener for receiving preference change events.
PreferenceDataStore	This interface was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceFragment	This class was deprecated in API level 28. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceFragment.OnPreferenceStartFragmentCallback	This interface was deprecated in API level 28. Use `PreferenceFragmentCompat.OnPreferenceStartFragmentCallback`
PreferenceGroup	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceManager	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceManager.OnActivityDestroyListener	This interface was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceManager.OnActivityResultListener	This interface was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferenceManager.OnActivityStopListener	This interface was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
Preferences	A node in a hierarchical collection of preference data.
PreferenceScreen	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
PreferencesFactory	A factory object that generates Preferences objects.
PreferentialNetworkServiceConfig	Network configuration to be set for the user profile .
PreferentialNetworkServiceConfig.Builder	Builder used to create `PreferentialNetworkServiceConfig` objects.
PreparedStatement	An object that represents a precompiled SQL statement.
PrepareGetCredentialResponse	A response object that prefetches user app credentials and provides metadata about them.
PrepareGetCredentialResponse.PendingGetCredentialHandle	A handle that represents a pending get-credential operation.
Presentation	Base class for presentations.
Presentations	Holds presentations used to visualize autofill suggestions for each available UI type.
Presentations.Builder	A builder for `Presentations`
PresentationSession	Class for presenting multiple documents to a remote verifier.
PresetReverb	A sound generated within a room travels in many directions.
PresetReverb.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the PresetReverb when a parameter value has changed.
PresetReverb.Settings	The Settings class regroups all preset reverb parameters.
Pressure	Represents a unit of pressure.
PreviewableHandwritingGesture	A `HandwritingGesture` that can be `previewed`.
PrimitiveIterator<T, T_CONS>	A base type for primitive specializations of `Iterator`.
PrimitiveIterator.OfDouble	An Iterator specialized for `double` values.
PrimitiveIterator.OfInt	An Iterator specialized for `int` values.
PrimitiveIterator.OfLong	An Iterator specialized for `long` values.
Principal	This interface represents the abstract notion of a principal, which can be used to represent any entity, such as an individual, a corporation, and a login id.
PrintAttributes	This class represents the attributes of a print job.
PrintAttributes.Builder	Builder for creating `PrintAttributes`.
PrintAttributes.Margins	This class specifies content margins.
PrintAttributes.MediaSize	This class specifies a supported media size.
PrintAttributes.Resolution	This class specifies a supported resolution in DPI (dots per inch).
PrintDocument	This class represents a printed document from the perspective of a print service.
PrintDocumentAdapter	Base class that provides the content of a document to be printed.
PrintDocumentAdapter.LayoutResultCallback	Base class for implementing a callback for the result of `PrintDocumentAdapter.onLayout(android.print.PrintAttributes, android.print.PrintAttributes, android.os.CancellationSignal, android.print.PrintDocumentAdapter.LayoutResultCallback, android.os.Bundle)`.
PrintDocumentAdapter.WriteResultCallback	Base class for implementing a callback for the result of `PrintDocumentAdapter.onWrite(android.print.PageRange[], android.os.ParcelFileDescriptor, android.os.CancellationSignal, android.print.PrintDocumentAdapter.WriteResultCallback)`.
PrintDocumentInfo	This class encapsulates information about a document for printing purposes.
PrintDocumentInfo.Builder	Builder for creating a `PrintDocumentInfo`.
PrintedPdfDocument	This class is a helper for creating a PDF file for given print attributes.
Printer	Simple interface for printing text, allowing redirection to various targets.
PrinterCapabilitiesInfo	This class represents the capabilities of a printer.
PrinterCapabilitiesInfo.Builder	Builder for creating of a `PrinterCapabilitiesInfo`.
PrinterDiscoverySession	This class encapsulates the interaction between a print service and the system during printer discovery.
PrinterId	This class represents the unique id of a printer.
PrinterInfo	This class represents the description of a printer.
PrinterInfo.Builder	Builder for creating of a `PrinterInfo`.
PrintJob	This class represents a print job from the perspective of an application.
PrintJob	This class represents a print job from the perspective of a print service.
PrintJobId	This class represents the id of a print job.
PrintJobInfo	This class represents the description of a print job.
PrintJobInfo.Builder	Builder for creating a `PrintJobInfo`.
PrintManager	System level service for accessing the printing capabilities of the platform.
PrintService	This is the base class for implementing print services.
PrintStream	A `PrintStream` adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
PrintStreamPrinter	Implementation of a `Printer` that sends its output to a `PrintStream`.
PrintWriter	Prints formatted representations of objects to a text-output stream.
PrintWriterPrinter	Implementation of a `Printer` that sends its output to a `PrintWriter`.
PriorityBlockingQueue<E>	An unbounded blocking queue that uses the same ordering rules as class `PriorityQueue` and supplies blocking retrieval operations.
PriorityQueue<E>	An unbounded priority queue based on a priority heap.
PrivateCredentialPermission	Legacy security code; do not use.
PrivateKey	A private key.
PrivilegedAction<T>	Android doesn't support `SecurityManager`.
PrivilegedActionException	Legacy security code; do not use.
PrivilegedExceptionAction<T>	Android doesn't support `SecurityManager`.
Process	Tools for managing OS processes.
Process	The `ProcessBuilder#start()` and `Runtime.exec` methods create a native process and return an instance of a subclass of `Process` that can be used to control the process and obtain information about it.
ProcessBuilder	This class is used to create operating system processes.
ProcessBuilder.Redirect	Represents a source of subprocess input or a destination of subprocess output.
ProcessBuilder.Redirect.Type	The type of a `Redirect`.
ProcessedData	This class was deprecated in API level 30. Please use `MediaDrm`
ProcessHealthStats	Keys for `HealthStats` returned from `HealthStats.getStats(int)` with the `UidHealthStats.STATS_PROCESSES` key.
ProcessingInstruction	The `ProcessingInstruction` interface represents a "processing instruction", used in XML as a way to keep processor-specific information in the text of the document.
ProfilingManager	API for apps to request and listen for app specific profiling.
ProfilingResult	Encapsulates results of a single profiling request operation.
ProgressBar	A user interface element that indicates the progress of an operation.
ProgressDialog	This class was deprecated in API level 26. `ProgressDialog` is a modal dialog, which prevents the user from interacting with the app. Instead of using this class, you should use a progress indicator like `ProgressBar`, which can be embedded in your app's UI. Alternatively, you can use a notification to inform the user of the task's progress.
PromptContentItem	An item shown on `PromptContentView`.
PromptContentItemBulletedText	A list item with bulleted text shown on `PromptVerticalListContentView`.
PromptContentItemPlainText	A list item with plain text shown on `PromptVerticalListContentView`.
PromptContentView	Contains the information of the template of content view for Biometric Prompt.
PromptContentViewWithMoreOptionsButton	Contains the information of the template of content view with a more options button for Biometric Prompt.
PromptContentViewWithMoreOptionsButton.Builder	A builder that collects arguments to be shown on the content view with more options button.
PromptVerticalListContentView	Contains the information of the template of vertical list content view for Biometric Prompt.
PromptVerticalListContentView.Builder	A builder that collects arguments to be shown on the vertical list view.
Properties	The `Properties` class represents a persistent set of properties.
Property<T, V>	A property is an abstraction that can be used to represent a mutable value that is held in a host object.
PropertyChangeEvent	A "PropertyChange" event gets delivered whenever a bean changes a "bound" or "constrained" property.
PropertyChangeListener	A "PropertyChange" event gets fired whenever a bean changes a "bound" property.
PropertyChangeListenerProxy	A class which extends the `EventListenerProxy` specifically for adding a `PropertyChangeListener` with a "bound" property.
PropertyChangeSupport	This is a utility class that can be used by beans that support bound properties.
PropertyMapper	An interface for mapping the string names of inspectable properties to integer identifiers.
PropertyMapper.PropertyConflictException	Thrown from a map method if a property name is already mapped as different type.
PropertyPath	Represents a property path returned from searching the AppSearch Database.
PropertyPath.PathSegment	A segment of a PropertyPath, which includes the name of the property and a 0-based index into this property.
PropertyPermission	Legacy security code; do not use.
PropertyReader	An interface for reading the properties of an inspectable object.
PropertyReader.PropertyTypeMismatchException	Thrown if a client calls a typed read method for a property of a different type.
PropertyResourceBundle	`PropertyResourceBundle` is a concrete subclass of `ResourceBundle` that manages resources for a locale using a set of static strings from a property file.
PropertyValuesHolder	This class holds information about a property and the values that that property should take on during an animation.
ProtectedSignalsManager	ProtectedSignalsManager provides APIs for apps and ad-SDKs to manage their protected signals.
ProtectionDomain	Legacy security code; do not use.
ProtocolException	Thrown to indicate that there is an error in the underlying protocol, such as a TCP error.
ProtocolFamily	Represents a family of communication protocols.
ProtoOutputStream	Class to write to a protobuf stream.
Provider	This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
Provider.Service	The description of a security service.
ProviderException	A runtime exception for Provider exceptions (such as misconfiguration errors or unrecoverable internal errors), which may be subclassed by Providers to throw specialized, provider-specific runtime errors.
ProviderInfo	Holds information about a specific `content provider`.
ProviderMismatchException	Unchecked exception thrown when an attempt is made to invoke a method on an object created by one file system provider with a parameter created by a different file system provider.
ProviderNotFoundException	Runtime exception thrown when a provider of the required type cannot be found.
ProviderProperties	Location provider properties.
ProviderProperties.Builder	Builder for ProviderProperties.
ProviderTestCase<T extends ContentProvider>	This class was deprecated in API level 5. this class extends InstrumentationTestCase but should extend AndroidTestCase. Use ProviderTestCase2, which corrects this problem, instead.
ProviderTestCase2<T extends ContentProvider>	This test case class provides a framework for testing a single `ContentProvider` and for testing your app code with an isolated content provider.
ProvisioningManager	Manages IMS provisioning and configuration parameters, as well as callbacks for apps to listen to changes in these configurations.
ProvisioningManager.FeatureProvisioningCallback	Callback for IMS provisioning feature changes.
Proxy	A convenience class for accessing the user and default proxy settings.
Proxy	`Proxy` provides static methods for creating dynamic proxy classes and instances, and it is also the superclass of all dynamic proxy classes created by those methods.
Proxy	This class represents a proxy setting, typically a type (http, socks) and a socket address.
Proxy.Type	Represents the proxy type.
ProxyFileDescriptorCallback	Callback that handles file system requests from ProxyFileDescriptor.
ProxyInfo	Describes a proxy configuration.
ProxySelector	Selects the proxy server to use, if any, when connecting to the network resource referenced by a URL.
PSource	This class specifies the source for encoding input P in OAEP Padding, as defined in the PKCS #1 standard.
PSource.PSpecified	This class is used to explicitly specify the value for encoding input P in OAEP Padding.
PSSParameterSpec	This class specifies a parameter spec for RSASSA-PSS signature scheme, as defined in the PKCS#1 v2.2 standard.
PublicKey	A public key.
PublishConfig	Defines the configuration of an Aware publish session.
PublishConfig.Builder	Builder used to build `PublishConfig` objects.
PublishDiscoverySession	A class representing a Aware publish session.
PushbackInputStream	A `PushbackInputStream` adds functionality to another input stream, namely the ability to "push back" or "unread" bytes, by storing pushed-back bytes in an internal buffer.
PushbackReader	A character-stream reader that allows characters to be pushed back into the stream.
PutDocumentsRequest	Encapsulates a request to index documents into an `AppSearchSession` database.
PutDocumentsRequest.Builder	Builder for `PutDocumentsRequest` objects.

Q

QName	`QName` represents a qualified name as defined in the XML specifications: XML Schema Part2: Datatypes specification, Namespaces in XML, Namespaces in XML Errata.
QueryLocationException	This class represents a set of exceptions that can occur when requesting a `Connection#queryLocationForEmergency(long, String, Executor, OutcomeReceiver)`
Queue<E>	A collection designed for holding elements prior to processing.
QuicException	Subclass of `NetworkException` which contains a detailed QUIC error code from QuicErrorCode.
QuickAccessWalletService	A `QuickAccessWalletService` provides a list of `WalletCard`s shown in the Quick Access Wallet.
QuickContactBadge	Widget used to show an image with the standard QuickContact badge and on-click behavior.
QuickViewConstants	Constants for `Intent#ACTION_QUICK_VIEW`.
QuicOptions	Configuration options for QUIC.
QuicOptions.Builder	Builder for `QuicOptions`.
QuoteSpan	A span which styles paragraphs by adding a vertical stripe at the beginning of the text (respecting layout direction).
QwertyKeyListener	This is the standard key listener for alphabetic input on qwerty keyboards.

R

R
R.anim
R.animator
R.array
R.attr
R.bool
R.color
R.dimen
R.drawable
R.fraction
R.id
R.integer
R.interpolator
R.layout
R.menu
R.mipmap
R.plurals
R.raw
R.string
R.style
R.styleable
R.transition
R.xml
RadialGradient
RadioAccessSpecifier	Describes a particular radio access network to be scanned.
RadioButton	A radio button is a two-states button that can be either checked or unchecked.
RadioGroup	This class is used to create a multiple-exclusion scope for a set of radio buttons.
RadioGroup.LayoutParams	This set of layout parameters defaults the width and the height of the children to `ViewGroup.LayoutParams.WRAP_CONTENT` when they are not specified in the XML file.
RadioGroup.OnCheckedChangeListener	Interface definition for a callback to be invoked when the checked radio button changed in this group.
Random	An instance of this class is used to generate a stream of pseudorandom numbers; its period is only 2⁴⁸.
RandomAccess	Marker interface used by `List` implementations to indicate that they support fast (generally constant time) random access.
RandomAccessFile	Instances of this class support both reading and writing to a random access file.
RandomGenerator	The `RandomGenerator` interface is designed to provide a common protocol for objects that generate random or (more typically) pseudorandom sequences of numbers (or Boolean values).
RandomGenerator.ArbitrarilyJumpableGenerator	This interface is designed to provide a common protocol for objects that generate sequences of pseudorandom values and can easily jump forward, by an arbitrary amount, to a distant point in the state cycle.
RandomGenerator.JumpableGenerator	This interface is designed to provide a common protocol for objects that generate pseudorandom values and can easily jump forward, by a moderate amount (ex.
RandomGenerator.LeapableGenerator	This interface is designed to provide a common protocol for objects that generate sequences of pseudorandom values and can easily not only jump but also leap forward, by a large amount (ex.
RandomGenerator.SplittableGenerator	This interface is designed to provide a common protocol for objects that generate sequences of pseudorandom values and can be split into two objects (the original one and a new one) each of which obey that same protocol (and therefore can be recursively split indefinitely).
RandomGenerator.StreamableGenerator	The `StreamableGenerator` interface augments the `RandomGenerator` interface to provide methods that return streams of `RandomGenerator` objects.
RandomGeneratorFactory<T extends RandomGenerator>	This is a factory class for generating multiple random number generators of a specific algorithm.
Range<T extends Comparable<? super T>>	Immutable class for describing the range of two numeric values.
RangeTemplate	A template for a `Control` with inputs in a "continuous" range of values.
RangeValueIterator	Interface for enabling iteration over sets of <int index, int value>, where index is the sorted integer index in ascending order and value, its associated integer value.
RangeValueIterator.Element	Return result wrapper for android.icu.util.RangeValueIterator.
RangingRequest	Defines the ranging request to other devices.
RangingRequest.Builder	Builder class used to construct `RangingRequest` objects.
RangingResult	Ranging result for a request started by `WifiRttManager#startRanging(RangingRequest, java.util.concurrent.Executor, RangingResultCallback)`.
RangingResult.Builder	Builder class used to construct `RangingResult` objects.
RangingResultCallback	Base class for ranging result callbacks.
Rating	A class to encapsulate rating information used as content metadata.
RatingBar	A RatingBar is an extension of SeekBar and ProgressBar that shows a rating in stars.
RatingBar.OnRatingBarChangeListener	A callback that notifies clients when the rating has been changed.
Rational	An immutable data type representation a rational number.
RC2ParameterSpec	This class specifies the parameters used with the RC2 algorithm.
RC5ParameterSpec	This class specifies the parameters used with the RC5 algorithm.
RcsUceAdapter	Manages RCS User Capability Exchange for the subscription specified.
Readable	A `Readable` is a source of characters.
ReadableByteChannel	A channel that can read bytes.
Reader	Instances of this class represent Secure Element Readers supported to this device.
Reader	Abstract class for reading character streams.
ReadOnlyBufferException	Unchecked exception thrown when a content-mutation method such as `put` or `compact` is invoked upon a read-only buffer.
ReadOnlyFileSystemException	Unchecked exception thrown when an attempt is made to update an object associated with a `read-only` `FileSystem`.
ReadPendingException	Unchecked exception thrown when an attempt is made to read from an asynchronous socket channel and a previous read has not completed.
ReadRecordsRequest<T extends Record>	A Base class to represent a request for `HealthConnectManager.readRecords(android.health.connect.ReadRecordsRequest, java.util.concurrent.Executor, android.os.OutcomeReceiver)`
ReadRecordsRequestUsingFilters<T extends Record>	Class to represent a request based on time range and data origin filters for `HealthConnectManager.readRecords(android.health.connect.ReadRecordsRequest, java.util.concurrent.Executor, android.os.OutcomeReceiver)`
ReadRecordsRequestUsingFilters.Builder<T extends Record>	Builder class for `ReadRecordsRequestUsingFilters`
ReadRecordsRequestUsingIds<T extends Record>	A request class to represent request based on `RecordIdFilters` for `HealthConnectManager.readRecords(android.health.connect.ReadRecordsRequest, java.util.concurrent.Executor, android.os.OutcomeReceiver)` A `RecordIdFilter` can be constructed with either `record ID` or `client record ID`.
ReadRecordsRequestUsingIds.Builder<T extends Record>	Builder class for `ReadRecordsRequestUsingIds`
ReadRecordsResponse<T extends Record>	Response containing list of Records for `HealthConnectManager#readRecords`.
ReadWriteLock	A `ReadWriteLock` maintains a pair of associated `locks`, one for read-only operations and one for writing.
ReceiverCallNotAllowedException	This exception is thrown from `Context#registerReceiver` and `Context#bindService` when these methods are being used from an `BroadcastReceiver` component.
RecognitionListener	Used for receiving notifications from the SpeechRecognizer when the recognition related events occur.
RecognitionPart	Info about a single recognition part.
RecognitionPart.Builder	A builder for `RecognitionPart`
RecognitionService	This class provides a base class for recognition service implementations.
RecognitionService.Callback	This class receives callbacks from the speech recognition service and forwards them to the user.
RecognitionService.SupportCallback	This class receives callbacks from the speech recognition service and forwards them to the user.
RecognitionSupport	Encodes the level of support for a given speech recognition request
RecognitionSupport.Builder	A builder for `RecognitionSupport`
RecognitionSupportCallback	Used for receiving notifications from the SpeechRecognizer about the device support status for the given recognition request.
RecognizerIntent	Constants for supporting speech recognition through starting an `Intent`
RecognizerResultsIntent	Constants for intents related to showing speech recognition results.
RecommendedStreamConfigurationMap	Immutable class to store the recommended stream configurations to set up `Surfaces` for creating a `capture session` with `CameraDevice.createCaptureSession(SessionConfiguration)`.
Record	A base class for all record classes
Record	This is the common base class of all Java language record classes.
RecordComponent	A `RecordComponent` provides information about, and dynamic access to, a component of a record class.
RecordIdFilter	A class to represent filtering based on record ID or client ID.
RecordingCanvas	A Canvas implementation that records view system drawing operations for deferred rendering.
RecordingSession	An instances of this class represents a session of media recording.
RecoverableSecurityException	Specialization of `SecurityException` that contains additional information about how to involve the end user to recover from the exception.
RecoverySystem	RecoverySystem contains methods for interacting with the Android recovery system (the separate partition that can be used to install system updates, wipe user data, etc.)
RecoverySystem.ProgressListener	Interface definition for a callback to be invoked regularly as verification proceeds.
Rect	Rect holds four integer coordinates for a rectangle.
RectEvaluator	This evaluator can be used to perform type interpolation between `Rect` values.
RectF	RectF holds four float coordinates for a rectangle.
RectShape	Defines a rectangle shape.
RecursiveAction	A recursive resultless `ForkJoinTask`.
RecursiveTask<V>	A recursive result-bearing `ForkJoinTask`.
ReentrantLock	A reentrant mutual exclusion `Lock` with the same basic behavior and semantics as the implicit monitor lock accessed using `synchronized` methods and statements, but with extended capabilities.
ReentrantReadWriteLock	An implementation of `ReadWriteLock` supporting similar semantics to `ReentrantLock`.
ReentrantReadWriteLock.ReadLock	The lock returned by method `ReentrantReadWriteLock#readLock`.
ReentrantReadWriteLock.WriteLock	The lock returned by method `ReentrantReadWriteLock#writeLock`.
Ref	The mapping in the Java programming language of an SQL `REF` value, which is a reference to an SQL structured type value in the database.
Reference<T>	Abstract base class for reference objects.
ReferenceQueue<T>	Reference queues, to which registered reference objects are appended by the garbage collector after the appropriate reachability changes are detected.
ReflectiveOperationException	Common superclass of exceptions thrown by reflective operations in core reflection.
ReflectPermission	Legacy security code; do not use.
RegexValidator	Defines if a field is valid based on a regular expression (regex).
Region
Region.Op
RegionIterator
RegisterCredentialDescriptionRequest	A request to register a `ComponentName` that contains an actively provisioned `Credential` represented by a `CredentialDescription`.
RegistrationManager	Manages IMS Service registration state for associated `ImsFeature`s.
RegistrationManager.RegistrationCallback	Callback class for receiving IMS network Registration callback events.
RejectedExecutionException	Exception thrown by an `Executor` when a task cannot be accepted for execution.
RejectedExecutionHandler	A handler for tasks that cannot be executed by a `ThreadPoolExecutor`.
RelativeDateTimeFormatter	Formats simple relative dates.
RelativeDateTimeFormatter.AbsoluteUnit	Represents an absolute unit.
RelativeDateTimeFormatter.Direction	Represents a direction for an absolute unit e.g "Next Tuesday" or "Last Tuesday"
RelativeDateTimeFormatter.FormattedRelativeDateTime	Represents the result of a formatting operation of a relative datetime.
RelativeDateTimeFormatter.RelativeDateTimeUnit	Represents the unit for formatting a relative date.
RelativeDateTimeFormatter.RelativeUnit	Represents the unit for formatting a relative date.
RelativeDateTimeFormatter.Style	The formatting style
RelativeLayout	A Layout where the positions of the children can be described in relation to each other or to the parent.
RelativeLayout.LayoutParams	Specifies how a view is positioned within a `RelativeLayout`.
RelativeSizeSpan	Uniformly scales the size of the text to which it's attached by a certain proportion.
RemoteAction	Represents a remote action that can be called from another process.
RemoteCallbackList<E extends IInterface>	Takes care of the grunt work of maintaining a list of remote interfaces, typically for the use of performing callbacks from a `Service` to its clients.
RemoteConference	A conference provided to a `ConnectionService` by another `ConnectionService` through `ConnectionService#conferenceRemoteConnections`.
RemoteConference.Callback	Callback base class for `RemoteConference`.
RemoteConnection	A connection provided to a `ConnectionService` by another `ConnectionService` running in a different process.
RemoteConnection.Callback	Callback base class for `RemoteConnection`.
RemoteConnection.VideoProvider	`RemoteConnection.VideoProvider` associated with a `RemoteConnection`.
RemoteConnection.VideoProvider.Callback	Callback class used by the `RemoteConnection.VideoProvider` to relay events from the `Connection.VideoProvider`.
RemoteControlClient	This class was deprecated in API level 21. Use `MediaSession` instead.
RemoteControlClient.MetadataEditor	This class was deprecated in API level 21. Use `MediaMetadata` and `MediaSession` instead.
RemoteControlClient.OnGetPlaybackPositionListener	Interface definition for a callback to be invoked when the media playback position is queried.
RemoteControlClient.OnMetadataUpdateListener	Interface definition for a callback to be invoked when one of the metadata values has been updated.
RemoteControlClient.OnPlaybackPositionUpdateListener	Interface definition for a callback to be invoked when the media playback position is requested to be updated.
RemoteController	This class was deprecated in API level 21. Use `MediaController` instead.
RemoteController.MetadataEditor	A class to read the metadata published by a `RemoteControlClient`, or send a `RemoteControlClient` new values for keys that can be edited.
RemoteController.OnClientUpdateListener	Interface definition for the callbacks to be invoked whenever media events, metadata and playback status are available.
RemoteEntry	An entry to be shown on the UI.
RemoteException	Parent exception for all Binder remote-invocation errors Note: not all exceptions from binder services will be subclasses of this.
RemoteInput	A `RemoteInput` object specifies input to be collected from a user to be passed along with an intent inside a `PendingIntent` that is sent.
RemoteInput.Builder	Builder class for `RemoteInput` objects.
RemoteViews	A class that describes a view hierarchy that can be displayed in another process.
RemoteViews.ActionException	Exception to send when something goes wrong executing an action
RemoteViews.DrawInstructions	A data parcel that carries the instructions to draw the RemoteViews, as an alternative to XML layout.
RemoteViews.DrawInstructions.Builder	Builder class for `DrawInstructions` objects.
RemoteViews.RemoteCollectionItems	Representation of a fixed list of items to be displayed in a RemoteViews collection.
RemoteViews.RemoteCollectionItems.Builder	Builder class for `RemoteCollectionItems` objects.
RemoteViews.RemoteResponse	Class representing a response to an action performed on any element of a RemoteViews.
RemoteViews.RemoteView	This annotation indicates that a subclass of View is allowed to be used with the `RemoteViews` mechanism.
RemoteViews.RemoteViewOutlineProvider	OutlineProvider for a view with a radius set by `RemoteViews.setViewOutlinePreferredRadius(int, float, int)`.
RemoteViewsService	The service to be connected to for a remote adapter to request RemoteViews.
RemoteViewsService.RemoteViewsFactory	An interface for an adapter between a remote collection view (ListView, GridView, etc) and the underlying data for that view.
RemoveAdSelectionFromOutcomesOverrideRequest	This POJO represents the `RemoveAdSelectionFromOutcomesOverrideRequest, Executor, OutcomeReceiver)` request It contains one field, a `AdSelectionFromOutcomesConfig` which serves as the identifier of the override to be removed
RemoveAdSelectionOverrideRequest	This POJO represents the `TestAdSelectionManager#removeAdSelectionConfigRemoteInfoOverride( RemoveAdSelectionOverrideRequest, Executor, OutcomeReceiver)` request It contains one field, a `AdSelectionConfig` which serves as the identifier of the override to be removed
RemoveByDocumentIdRequest	Encapsulates a request to remove documents by namespace and IDs from the `AppSearchSession` database.
RemoveByDocumentIdRequest.Builder	Builder for `RemoveByDocumentIdRequest` objects.
RemoveCustomAudienceOverrideRequest	This POJO represents the `TestCustomAudienceManager#removeCustomAudienceRemoteInfoOverride( RemoveCustomAudienceOverrideRequest, Executor, OutcomeReceiver)` request.
RemoveCustomAudienceOverrideRequest.Builder	Builder for `RemoveCustomAudienceOverrideRequest` objects.
RemoveSpaceGesture	A subclass of `HandwritingGesture` for removing whitespace from text.
RemoveSpaceGesture.Builder	Builder for `RemoveSpaceGesture`.
RenamingDelegatingContext	This class was deprecated in API level 24. New tests should be written using the Android Testing Support Library.
RenderEffect	Intermediate rendering step used to render drawing commands with a corresponding visual effect.
RenderingConfig	Information returned by `IsolatedWorker#onExecute(ExecuteInput, android.os.OutcomeReceiver)` that is used in a subesequent call to `IsolatedWorker#onRender(RenderInput, android.os.OutcomeReceiver)` to identify the content to be displayed in a single `View`.
RenderingConfig.Builder	A builder for `RenderingConfig`
RenderInput	The input data for `IsolatedWorker#onRender(RenderInput, android.os.OutcomeReceiver)`.
RenderNode	RenderNode is used to build hardware accelerated rendering hierarchies.
RenderOutput	The result returned by `IsolatedWorker#onRender(RenderInput, android.os.OutcomeReceiver)`.
RenderOutput.Builder	A builder for `RenderOutput`
RenderParams	Represents a set of parameters that will be used to render a page of the PDF document.
RenderParams.Builder	Builder for constructing `RenderParams`.
RenderProcessGoneDetail	This class provides more specific information about why the render process exited.
RenderScript	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
RenderScript.ContextType	ContextType specifies the specific type of context to be created.
RenderScript.Priority	RenderScript worker thread priority enumeration.
RenderScript.RSErrorHandler	The runtime error handler base class.
RenderScript.RSMessageHandler	The base class from which an application should derive in order to receive RS messages from scripts.
Repeatable	The annotation interface `java.lang.annotation.Repeatable` is used to indicate that the annotation interface whose declaration it (meta-)annotates is repeatable.
RepetitiveTest	This @interface is deprecated. New tests should be written using the Android Testing Support Library.
Replaceable	`Replaceable` is an interface representing a string of characters that supports the replacement of a range of itself with a new string of characters.
ReplacementSpan
ReplacementTransformationMethod	This transformation method causes the characters in the `getOriginal()` array to be replaced by the corresponding characters in the `getReplacement()` array.
ReportEventRequest	Request object wrapping the required arguments needed to report an ad event.
ReportEventRequest.Builder	Builder for `ReportEventRequest` objects.
ReportImpressionRequest	Represent input parameters to the reportImpression API.
ReportSystemUsageRequest	A request to report usage of a document owned by another app from a system UI surface.
ReportSystemUsageRequest.Builder	Builder for `ReportSystemUsageRequest` objects.
ReportUsageRequest	A request to report usage of a document.
ReportUsageRequest.Builder	Builder for `ReportUsageRequest` objects.
RequestLogRecord	Contains data that will be written to the REQUESTS table at the end of a call to `IsolatedWorker#onExecute(ExecuteInput, android.os.OutcomeReceiver)`.
RequestLogRecord.Builder	A builder for `RequestLogRecord`
RequestSurfacePackageException	This class was deprecated in API level 36. Exception is used at `SdkSandboxManager#requestSurfacePackage` which is getting deprecated.
RequestToken	An opaque token that identifies the current request to an `IsolatedService`.
ResolveInfo	Information that is returned from resolving an intent against an IntentFilter.
ResolveInfo.DisplayNameComparator
ResolverStyle	Enumeration of different ways to resolve dates and times.
ResourceBundle	Resource bundles contain locale-specific objects.
ResourceBundle.Control	`ResourceBundle.Control` defines a set of callback methods that are invoked by the `ResourceBundle.getBundle` factory methods during the bundle loading process.
ResourceBusyException	Exception thrown when an operation on a MediaDrm object is attempted and hardware resources are not available, due to being in use.
ResourceCursorAdapter	An easy adapter that creates views defined in an XML file.
ResourceCursorTreeAdapter	A fairly simple ExpandableListAdapter that creates views defined in an XML file.
ResourceMismatchViolation
Resources	Class for accessing an application's resources.
Resources.NotFoundException	This exception is thrown by the resource APIs when a requested resource can not be found.
Resources.Theme	This class holds the current attribute values for a particular theme.
ResourcesLoader	A container for supplying `ResourcesProvider(s)` to `Resources` objects.
ResourcesProvider	Provides methods to load resources data from APKs (`.apk`) and resources tables (eg.
RespiratoryRateRecord	Captures the user's respiratory rate.
RespiratoryRateRecord.Builder	Builder class for `RespiratoryRateRecord`
ResponderConfig	Defines the configuration of an IEEE 802.11mc Responder.
ResponderConfig.Builder	Builder class used to construct `ResponderConfig` objects.
ResponderLocation	ResponderLocation is both a Location Configuration Information (LCI) decoder and a Location Civic Report (LCR) decoder for information received from a Wi-Fi Access Point (AP) during Wi-Fi RTT ranging process.
ResponseCache	Represents implementations of URLConnection caches.
RestingHeartRateRecord	Captures the user's resting heart rate.
RestingHeartRateRecord.Builder	Builder class for `RestingHeartRateRecord`
RestoreObserver	Callback class for receiving progress reports during a restore operation.
RestrictionEntry	Applications can expose restrictions for a restricted user on a multiuser device.
RestrictionsManager	Provides a mechanism for apps to query restrictions imposed by an entity that manages the user.
RestrictionsReceiver	Abstract implementation of a Restrictions Provider BroadcastReceiver.
Result	An object that implements this interface contains the information needed to build a transformation result tree.
ResultData	This class was deprecated in API level 33. Use `PresentationSession` instead.
ResultReceiver	Generic interface for receiving a callback result from someone.
ResultSet	A table of data representing a database result set, which is usually generated by executing a statement that queries the database.
ResultSetMetaData	An object that can be used to get information about the types and properties of the columns in a `ResultSet` object.
Retention	Indicates how long annotations with the annotated interface are to be retained.
RetentionPolicy	Annotation retention policy.
Rfc822Token	This class stores an RFC 822-like name, address, and comment, and provides methods to convert them to quoted strings.
Rfc822Tokenizer	This class works as a Tokenizer for MultiAutoCompleteTextView for address list fields, and also provides a method for converting a string of addresses (such as might be typed into such a field) into a series of Rfc822Tokens.
RggbChannelVector	Immutable class to store a 4-element vector of floats indexable by a bayer RAW 2x2 pixel block.
Ringtone	Ringtone provides a quick method for playing a ringtone, notification, or other similar types of sounds.
RingtoneManager	RingtoneManager provides access to ringtones, notification, and other types of sounds.
RingtonePreference	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
RippleDrawable	Drawable that shows a ripple effect in response to state changes.
RoleManager	This class provides information about and manages roles.
RootElement	The root XML element.
RotateAnimation	An animation that controls the rotation of an object.
RotateDrawable	A Drawable that can rotate another Drawable based on the current level value.
RoundedCorner	Represents a rounded corner of the display.
RoundingMode	Specifies a rounding policy for numerical operations capable of discarding precision.
RoundRectShape	Creates a rounded-corner rectangle.
RouteDiscoveryPreference	A media route discovery preference describing the features of routes that media router would like to discover and whether to perform active scanning.
RouteDiscoveryPreference.Builder	Builder for `RouteDiscoveryPreference`.
RouteInfo	Represents a network route.
RouteListingPreference	Allows applications to customize the list of routes used for media routing (for example, in the System UI Output Switcher).
RouteListingPreference.Builder	Builder for `RouteListingPreference`.
RouteListingPreference.Item	Holds preference information for a specific route in a `RouteListingPreference`.
RouteListingPreference.Item.Builder	Builder for `Item`.
RouteSelectionDescriptor	Represents a single route selection descriptor as defined in 3GPP TS 24.526.
RoutingSessionInfo	Describes a routing session which is created when a media route is selected.
RoutingSessionInfo.Builder	Builder class for `RoutingSessionInfo`.
RowId	The representation (mapping) in the Java programming language of an SQL ROWID value.
RowIdLifetime	Enumeration for RowId life-time values.
RowSet	The interface that adds support to the JDBC API for the JavaBeans^TM component model.
RowSetEvent	An `Event` object generated when an event occurs to a `RowSet` object.
RowSetInternal	The interface that a `RowSet` object implements in order to present itself to a `RowSetReader` or `RowSetWriter` object.
RowSetListener	An interface that must be implemented by a component that wants to be notified when a significant event happens in the life of a `RowSet` object.
RowSetMetaData	An object that contains information about the columns in a `RowSet` object.
RowSetReader	The facility that a disconnected `RowSet` object calls on to populate itself with rows of data.
RowSetWriter	An object that implements the `RowSetWriter` interface, called a writer.
RSAKey	The interface to a public or private key in PKCS#1 v2.2 standard, such as those for RSA, or RSASSA-PSS algorithms.
RSAKeyGenParameterSpec	This class specifies the set of parameters used to generate an RSA key pair.
RSAMultiPrimePrivateCrtKey	The interface to an RSA multi-prime private key, as defined in the PKCS#1 v2.2 standard, using the Chinese Remainder Theorem (CRT) information values.
RSAMultiPrimePrivateCrtKeySpec	This class specifies an RSA multi-prime private key, as defined in the PKCS#1 v2.2 standard using the Chinese Remainder Theorem (CRT) information values for efficiency.
RSAOtherPrimeInfo	This class represents the triplet (prime, exponent, and coefficient) inside RSA's OtherPrimeInfo structure, as defined in the PKCS#1 v2.2 standard.
RSAPrivateCrtKey	The interface to an RSA private key, as defined in the PKCS#1 v2.2 standard, using the Chinese Remainder Theorem (CRT) information values.
RSAPrivateCrtKeySpec	This class specifies an RSA private key, as defined in the PKCS#1 v2.2 standard, using the Chinese Remainder Theorem (CRT) information values for efficiency.
RSAPrivateKey	The interface to an RSA private key.
RSAPrivateKeySpec	This class specifies an RSA private key.
RSAPublicKey	The interface to an RSA public key.
RSAPublicKeySpec	This class specifies an RSA public key.
RSDriverException	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
RSIllegalArgumentException	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
RSInvalidStateException	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
RSRuntimeException	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
RtpStream	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
RuleBasedCollator	RuleBasedCollator is a concrete subclass of Collator.
RuleBasedCollator	The `RuleBasedCollator` class is a concrete subclass of `Collator` that provides a simple, data-driven, table collator.
Runnable	The `Runnable` interface should be implemented by any class whose instances are intended to be executed by a thread.
RunnableFuture<V>	A `Future` that is `Runnable`.
RunnableScheduledFuture<V>	A `ScheduledFuture` that is `Runnable`.
Runtime	Every Java application has a single instance of class `Runtime` that allows the application to interface with the environment in which the application is running.
RuntimeException	`RuntimeException` is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.
RuntimePermission	Legacy security code; do not use.
RuntimeShader	A `RuntimeShader` calculates a per-pixel color based on the output of a user defined Android Graphics Shading Language (AGSL) function.

S

SafeBrowsingResponse	Used to indicate an action to take when hitting a malicious URL.
SafeVarargs	A programmer assertion that the body of the annotated method or constructor does not perform potentially unsafe operations on its varargs parameter.
Sampler	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Sampler.Builder	Builder for creating non-standard samplers.
Sampler.Value
SandboxedSdk	Represents an SDK loaded in the sandbox process.
SandboxedSdkProvider	Encapsulates API which SDK sandbox can use to interact with SDKs loaded into it.
Sanitizer	Helper class used to sanitize user input before using it in a save request.
SaProposal	SaProposal represents a proposed configuration to negotiate an IKE or Child SA.
SaveCallback	Handles save requests from the `AutofillService` into the `Activity` being autofilled.
SavedDatasetsInfo	A result returned from `AutofillService#onSavedDatasetsInfoRequest(SavedDatasetsInfoCallback)`.
SavedDatasetsInfoCallback	Handles the response to `AutofillService#onSavedDatasetsInfoRequest(SavedDatasetsInfoCallback)`.
SaveInfo	Information used to indicate that an `AutofillService` is interested on saving the user-inputed data for future use, through a `AutofillService#onSaveRequest(SaveRequest, SaveCallback)` call.
SaveInfo.Builder	A builder for `SaveInfo` objects.
Savepoint	The representation of a savepoint, which is a point within the current transaction that can be referenced from the `Connection.rollback` method.
SaveRequest	This class represents a request to an `autofill provider` to save applicable data entered by the user.
SAXException	Encapsulate a general SAX error or warning.
SAXNotRecognizedException	Exception class for an unrecognized identifier.
SAXNotSupportedException	Exception class for an unsupported operation.
SAXParseException	Encapsulate an XML parse error or warning.
SAXParser	Defines the API that wraps an `XMLReader` implementation class.
SAXParserFactory	Defines a factory API that enables applications to configure and obtain a SAX based parser to parse XML documents.
SAXResult	Acts as an holder for a transformation Result.
SAXSource	Acts as an holder for SAX-style Source.
SAXTransformerFactory	This class extends TransformerFactory to provide SAX-specific factory methods.
Scale	A class that defines a quantity by which a number should be multiplied when formatting.
ScaleAnimation	An animation that controls the scale of an object.
ScaleDrawable	A Drawable that changes the size of another Drawable based on its current level value.
ScaleGestureDetector	Detects scaling transformation gestures using the supplied `MotionEvent`s.
ScaleGestureDetector.OnScaleGestureListener	The listener for receiving notifications when gestures occur.
ScaleGestureDetector.SimpleOnScaleGestureListener	A convenience class to extend when you only want to listen for a subset of scaling-related events.
ScaleXSpan	Scales horizontally the size of the text to which it's attached by a certain factor.
ScanCallback	Bluetooth LE scan callbacks.
ScanFilter	Criteria for filtering result from Bluetooth LE scans.
ScanFilter.Builder	Builder class for `ScanFilter`.
Scanner	A simple text scanner which can parse primitive types and strings using regular expressions.
ScanRecord	Represents a scan record from Bluetooth LE scan.
ScanResult	ScanResult for Bluetooth LE scan.
ScanResult	Describes information about a detected access point.
ScanResult.InformationElement	information elements from beacon.
ScanSettings	Bluetooth LE scan settings are passed to `BluetoothLeScanner#startScan` to define the parameters for the scan.
ScanSettings.Builder	Builder for `ScanSettings`.
ScatteringByteChannel	A channel that can read bytes into a sequence of buffers.
Scene	A scene represents the collection of values that various properties in the View hierarchy will have when the scene is applied.
ScheduledExecutorService	An `ExecutorService` that can schedule commands to run after a given delay, or to execute periodically.
ScheduledFuture<V>	A delayed result-bearing action that can be cancelled.
ScheduledThreadPoolExecutor	A `ThreadPoolExecutor` that can additionally schedule commands to run after a given delay, or to execute periodically.
Schema	Immutable in-memory representation of grammar.
SchemaChangeInfo	Contains information about a schema change detected by an `ObserverCallback`.
SchemaFactory	Factory that creates `Schema` objects. Entry-point to the validation API.
SchemaFactoryLoader	This class was removed from JAXP 1.3 before it was finalized but was mistakenly included in Java 5.
SchemaVisibilityConfig	A class to hold a all necessary Visibility information corresponding to the same schema.
SchemaVisibilityConfig.Builder	The builder class of `SchemaVisibilityConfig`.
ScientificNotation	A class that defines the scientific notation style to be used when formatting numbers in NumberFormatter.
ScientificNumberFormatter	A formatter that formats numbers in user-friendly scientific notation.
Script	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Script.Builder	Only intended for use by generated reflected code.
Script.FieldBase	Only intended for use by generated reflected code.
Script.FieldID	FieldID is an identifier for a Script + exported field pair.
Script.InvokeID	InvokeID is an identifier for an invoke function.
Script.KernelID	KernelID is an identifier for a Script + root function pair.
Script.LaunchOptions	Class for specifying the specifics about how a kernel will be launched.
ScriptC	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptGroup	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptGroup.Binding	Represents a binding of a value to a global variable in a kernel or invocable function.
ScriptGroup.Builder	This class was deprecated in API level 23. Use `Builder2` instead.
ScriptGroup.Builder2	The builder class for creating script groups A script group is created using closures (see class `Closure`).
ScriptGroup.Closure	An opaque class for closures A closure represents a function call to a kernel or invocable function, combined with arguments and values for global variables.
ScriptGroup.Future	An opaque class for futures A future represents an output of a closure, either the return value of the function, or the value of a global variable written by the function.
ScriptGroup.Input	An opaque class for script group inputs Created by calling the `Builder2#addInput` method.
ScriptIntrinsic	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsic3DLUT	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicBLAS	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicBlend	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicBlur	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicColorMatrix	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicConvolve3x3	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicConvolve5x5	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicHistogram	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicLUT	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicResize	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScriptIntrinsicYuvToRGB	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ScrollCaptureCallback	A ScrollCaptureCallback is responsible for providing rendered snapshots of scrolling content for the scroll capture system.
ScrollCaptureSession	A session represents the scope of interaction between a `ScrollCaptureCallback` and the system during an active scroll capture operation.
ScrollCaptureTarget	A target collects the set of contextual information for a ScrollCaptureHandler discovered during a `scroll capture search`.
Scroller	This class encapsulates scrolling.
ScrollFeedbackProvider	Provides feedback to the user for scroll events on a `View`.
ScrollingMovementMethod	A movement method that interprets movement keys by scrolling the text buffer.
ScrollView	A view group that allows the view hierarchy placed within it to be scrolled.
SdkExtensions	Methods for interacting with the extension SDK.
SdkSandboxActivityHandler	This is used to notify the SDK when an `Activity` is created for it.
SdkSandboxController	Controller that is used by SDK loaded in the sandbox to access information provided by the sdk sandbox.
SdkSandboxManager	Provides APIs to load `SDKs` into the SDK sandbox process, and then interact with them.
SdkSandboxManager.SdkSandboxProcessDeathCallback	A callback for tracking events SDK sandbox death.
SealedObject	This class enables a programmer to create an object and protect its confidentiality with a cryptographic algorithm.
SearchableInfo	Searchability meta-data for an activity.
SearchEvent	Class that contains information about an event that triggers a search.
SearchIterator	`SearchIterator` is an abstract base class that provides methods to search for a pattern within a text string.
SearchIterator.ElementComparisonType	Option to control how collation elements are compared.
SearchManager	This class provides access to the system search services.
SearchManager.OnCancelListener	See `SearchManager#setOnCancelListener` for configuring your activity to monitor search UI state.
SearchManager.OnDismissListener	See `SearchManager#setOnDismissListener` for configuring your activity to monitor search UI state.
SearchRecentSuggestions	This is a utility class providing access to `SearchRecentSuggestionsProvider`.
SearchRecentSuggestionsProvider	This superclass can be used to create a simple search suggestions provider for your application.
SearchResult	This class represents one of the results obtained from an AppSearch query.
SearchResult.Builder	Builder for `SearchResult` objects.
SearchResult.MatchInfo	This class represents match objects for any snippets that might be present in `SearchResults` from a query.
SearchResult.MatchInfo.Builder	Builder for `MatchInfo` objects.
SearchResult.MatchRange	Class providing the position range of matching information.
SearchResults	Encapsulates results of a search operation.
SearchSpec	This class represents the specification logic for AppSearch.
SearchSpec.Builder	Builder for `objects`.
SearchSuggestionResult	The result class of the `AppSearchSession#searchSuggestion`.
SearchSuggestionResult.Builder	The Builder class of `SearchSuggestionResult`.
SearchSuggestionSpec	This class represents the specification logic for AppSearch.
SearchSuggestionSpec.Builder	Builder for `objects`.
SearchView	A widget that provides a user interface for the user to enter a search query and submit a request to a search provider.
SearchView.OnCloseListener
SearchView.OnQueryTextListener	Callbacks for changes to the query text.
SearchView.OnSuggestionListener	Callback interface for selection events on suggestions.
SecretKey	A secret (symmetric) key.
SecretKeyFactory	This class represents a factory for secret keys.
SecretKeyFactorySpi	This class defines the Service Provider Interface (SPI) for the `SecretKeyFactory` class.
SecretKeySpec	This class specifies a secret key in a provider-independent fashion.
SectionIndexer	Interface that may implemented on `Adapter`s to enable fast scrolling between sections of an `AbsListView`.
SectionRequest	A request for Section from broadcast signal.
SectionResponse	A response for Section from broadcast signal.
SecureCacheResponse	Represents a cache response originally retrieved through secure means, such as TLS.
SecureClassLoader	This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.
SecureDirectoryStream<T>	A `DirectoryStream` that defines operations on files that are located relative to an open directory.
SecureKeyImportUnavailableException	Indicates that the Keystore does not support securely importing wrapped keys.
SecureRandom	This class provides a cryptographically strong random number generator (RNG).
SecureRandomParameters	A marker interface for parameters used in various `SecureRandom` methods.
SecureRandomSpi	This class defines the Service Provider Interface (SPI) for the `SecureRandom` class.
Security	This class centralizes all security properties and common security methods.
SecurityException	Thrown by the security manager to indicate a security violation.
SecurityLog	Definitions for working with security logs.
SecurityLog.SecurityEvent	A class representing a security event log entry.
SecurityManager	Legacy security code; do not use.
SecurityPermission	Legacy security code; do not use.
SecurityStateManager	SecurityStateManager provides the functionality to query the security status of the system and platform components.
SeekableByteChannel	A byte channel that maintains a current position and allows the position to be changed.
SeekBar	A SeekBar is an extension of ProgressBar that adds a draggable thumb.
SeekBar.OnSeekBarChangeListener	A callback that notifies clients when the progress level has been changed.
SegmentFinder	Finds text segment boundaries within text.
SegmentFinder.PrescribedSegmentFinder	The default `SegmentFinder` implementation based on given segment ranges.
SelectableChannel	A channel that can be multiplexed via a `Selector`.
SelectFormat	`SelectFormat` supports the creation of internationalized messages by selecting phrases based on keywords.
SelectGesture	A sub-class of `HandwritingGesture` for selecting an area of text using single rectangle.
SelectGesture.Builder	Builder for `SelectGesture`.
Selection	Utility class for manipulating cursors and selections in CharSequences.
SelectionBoundary	Represents one edge of the selected content.
SelectionEvent	A selection event.
SelectionKey	A token representing the registration of a `SelectableChannel` with a `Selector`.
Selector	A multiplexor of `SelectableChannel` objects.
SelectorProvider	Service-provider class for selectors and selectable channels.
SelectRangeGesture	A subclass of `HandwritingGesture` for selecting a range of text by defining start and end rectangles.
SelectRangeGesture.Builder	Builder for `SelectRangeGesture`.
SelectWalletCardRequest	Represents a request to a `QuickAccessWalletService` to select a particular `walletCard`.
Semaphore	A counting semaphore.
Sensor	Class representing a sensor.
SensorAdditionalInfo	This class represents a `Sensor` additional information frame, which is reported through listener callback `onSensorAdditionalInfo`.
SensorDirectChannel	Class representing a sensor direct channel.
SensorEvent	This class represents a `Sensor` event and holds information such as the sensor's type, the time-stamp, accuracy and of course the sensor's `data`.
SensorEventCallback	Used for receiving sensor additional information frames.
SensorEventListener	Used for receiving notifications from the SensorManager when there is new sensor data.
SensorEventListener2	Used for receiving a notification when a flush() has been successfully completed.
SensorListener	This interface was deprecated in API level 3. Use `SensorEventListener` instead.
SensorManager	SensorManager lets you access the device's `sensors`.
SensorManager.DynamicSensorCallback	Used for receiving notifications from the SensorManager when dynamic sensors are connected or disconnected.
SensorPrivacyManager	This class provides information about the microphone and camera toggles.
SensorPrivacyManager.Sensors	Sensor constants which are used in `SensorPrivacyManager`
SentenceSuggestionsInfo	This class contains a metadata of suggestions returned from a text service (e.g. `SpellCheckerService`).
SequencedCollection<E>	A collection that has a well-defined encounter order, that supports operations at both ends, and that is reversible.
SequencedMap<K, V>	A Map that has a well-defined encounter order, that supports operations at both ends, and that is reversible.
SequencedSet<E>	A collection that is both a `SequencedCollection` and a `Set`.
SequenceInputStream	A `SequenceInputStream` represents the logical concatenation of other input streams.
Serial	Indicates that an annotated field or method is part of the serialization mechanism defined by the Java Object Serialization Specification.
Serializable	Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
SerializablePermission	This legacy security is not supported on Android.
ServerSocket	This class implements server sockets.
ServerSocketChannel	A selectable channel for stream-oriented listening sockets.
ServerSocketFactory	This class creates server sockets.
Service	A Service is an application component representing either an application's desire to perform a longer-running operation while not interacting with the user or to supply functionality for other applications to use.
ServiceConfigurationError	Error thrown when something goes wrong while locating, loading, or instantiating a service provider.
ServiceConnection	Interface for monitoring the state of an application service.
ServiceConnectionLeakedViolation
ServiceDiscoveryInfo	An object providing information about a Wi-Fi Aware discovery session with a specific peer.
ServiceHealthStats	Keys for `HealthStats` returned from `HealthStats.getStats(int)` with the `PackageHealthStats.STATS_SERVICES` key.
ServiceInfo	Information you can retrieve about a particular application service.
ServiceInfo	Describes a cell-broadcast service.
ServiceLoader<S>	A facility to load implementations of a service.
ServiceLoader.Provider<S>	Represents a service provider located by `ServiceLoader`.
ServiceStartNotAllowedException	Exception thrown when an app tries to start a `Service` when it's not allowed to do so.
ServiceState	Contains phone state and service related information.
ServiceTestCase<T extends Service>	This class was deprecated in API level 24. Use ServiceTestRule instead. New tests should be written using the Android Testing Support Library.
ServiceWorkerClient	Base class for clients to capture Service Worker related callbacks, see `ServiceWorkerController` for usage example.
ServiceWorkerController	Manages Service Workers used by WebView.
ServiceWorkerWebSettings	Manages settings state for all Service Workers.
SEService	The SEService realises the communication to available Secure Elements on the device.
SEService.OnConnectedListener	Interface to send call-backs to the application when the service is connected.
Session	Instances of this class represent a connection session to one of the Secure Elements available on the device.
Session2Command	This API is not generally intended for third party application developers.
Session2Command.Result	This API is not generally intended for third party application developers.
Session2CommandGroup	This API is not generally intended for third party application developers.
Session2CommandGroup.Builder	This API is not generally intended for third party application developers.
Session2Token	This API is not generally intended for third party application developers.
SessionConfiguration	A helper class that aggregates all supported arguments for capture session initialization.
SessionTranscriptMismatchException	Thrown when trying use multiple different session transcripts in the same presentation session.
Set<E>	A collection that contains no duplicate elements.
SetAppInstallAdvertisersRequest	Represents input parameters to the setAppInstallAdvertiser API.
SetAppInstallAdvertisersRequest.Builder
SetSchemaRequest	Encapsulates a request to update the schema of an `AppSearchSession` database.
SetSchemaRequest.Builder	Builder for `SetSchemaRequest` objects.
SetSchemaResponse	The response class of `AppSearchSession#setSchema`
SetSchemaResponse.Builder	Builder for `SetSchemaResponse` objects.
SetSchemaResponse.MigrationFailure	The class represents a post-migrated `GenericDocument` that failed to be saved by `AppSearchSession#setSchema`.
SettingInjectorService	Dynamically specifies the summary (subtitle) and enabled status of a preference injected into the list of app settings displayed by the system settings app For use only by apps that are included in the system image, for preferences that affect multiple apps.
Settings	The Settings provider contains global system-level device preferences.
Settings.Global	Global system settings, containing preferences that always apply identically to all defined users.
Settings.NameValueTable	Common base for tables of name/value settings.
Settings.Panel	A Settings panel is floating UI that contains a fixed subset of settings to address a particular user problem.
Settings.Secure	Secure system settings, containing system preferences that applications can read but are not allowed to write.
Settings.SettingNotFoundException
Settings.System	System settings, containing miscellaneous system preferences.
SettingsSlicesContract	Provides a contract for platform-supported Settings `Slices`.
SexualActivityRecord	Captures an occurrence of sexual activity.
SexualActivityRecord.Builder	Builder class for `SexualActivityRecord`
SexualActivityRecord.SexualActivityProtectionUsed	Identifier for sexual activity protection used
Shader	Shader is the base class for objects that return horizontal spans of colors during drawing.
Shader.TileMode
Shape	Defines a generic graphical "shape." Any Shape can be drawn to a Canvas with its own draw() method, but more graphical control is available if you instead pass it to a `ShapeDrawable`.
ShapeDrawable	A Drawable object that draws primitive shapes.
ShapeDrawable.ShaderFactory	Base class defines a factory object that is called each time the drawable is resized (has a new width or height).
ShareActionProvider	This is a provider for a share action.
ShareActionProvider.OnShareTargetSelectedListener	Listener for the event of selecting a share target.
SharedElementCallback	Listener provided in `Activity#setEnterSharedElementCallback(SharedElementCallback)` and `Activity#setExitSharedElementCallback(SharedElementCallback)` as well as `Fragment#setEnterSharedElementCallback(SharedElementCallback)` and `Fragment#setExitSharedElementCallback(SharedElementCallback)` to monitor the Shared element transitions.
SharedElementCallback.OnSharedElementsReadyListener	Listener to be called after `SharedElementCallback.onSharedElementsArrived(java.util.List, java.util.List, android.app.SharedElementCallback.OnSharedElementsReadyListener)` when the shared elements are ready to be hidden in the source Activity and shown in the destination Activity.
SharedLibraryInfo	This class provides information for a shared library.
SharedMemory	SharedMemory enables the creation, mapping, and protection control over anonymous shared memory.
SharedPreferences	Interface for accessing and modifying preference data returned by `Context.getSharedPreferences(String, int)`.
SharedPreferences.Editor	Interface used for modifying values in a `SharedPreferences` object.
SharedPreferences.OnSharedPreferenceChangeListener	Interface definition for a callback to be invoked when a shared preference is changed.
SharedPreferencesBackupHelper	A helper class that can be used in conjunction with `BackupAgentHelper` to manage the backup of `SharedPreferences`.
Short	The `Short` class wraps a value of primitive type `short` in an object.
Short2	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Short3	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Short4	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
ShortBuffer	A short buffer.
ShortBufferException	This exception is thrown when an output buffer provided by the user is too short to hold the operation result.
ShortcutInfo	Represents a shortcut that can be published via `ShortcutManager`.
ShortcutInfo.Builder	Builder class for `ShortcutInfo` objects.
ShortcutManager	`ShortcutManager` executes operations on an app's set of shortcuts, which represent specific tasks and actions that users can perform within your app.
ShutdownChannelGroupException	Unchecked exception thrown when an attempt is made to construct a channel in a group that is shutdown or the completion handler for an I/O operation cannot be invoked because the channel group has terminated.
SidePropagation	A `TransitionPropagation` that propagates based on the distance to the side and, orthogonally, the distance to epicenter.
SignalStrength	Contains phone signal strength related information.
SignalStrengthUpdateRequest	Request used to register `SignalThresholdInfo` to be notified when the signal strength breach the specified thresholds.
SignalStrengthUpdateRequest.Builder	Builder class to create `SignalStrengthUpdateRequest` object.
SignalThresholdInfo	Defines the threshold value of the signal strength.
SignalThresholdInfo.Builder	Builder class to create `SignalThresholdInfo` objects.
Signature	Opaque, immutable representation of a signing certificate associated with an application package.
Signature	The Signature class is used to provide applications the functionality of a digital signature algorithm.
SignatureException	This is the generic Signature exception.
SignatureSpi	This class defines the Service Provider Interface (SPI) for the `Signature` class, which is used to provide the functionality of a digital signature algorithm.
SignedContextualAds	Contains a list of buyer supplied `AdWithBid` bundle and its signature.
SignedContextualAds.Builder	Builder for `SignedContextualAds` object
SignedObject	SignedObject is a class for the purpose of creating authentic runtime objects whose integrity cannot be compromised without being detected.
Signer	This class was deprecated in API level 3. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
SigningInfo	Information pertaining to the signing certificates used to sign a package.
SignStyle	Enumeration of ways to handle the positive/negative sign.
SimPhonebookContract	The contract between the provider of contact records on the device's SIM cards and applications.
SimPhonebookContract.ElementaryFiles	Constants for metadata about the elementary files of the SIM cards in the phone.
SimPhonebookContract.SimRecords	Constants for the contact records on a SIM card.
SimpleAdapter	An easy adapter to map static data to views defined in an XML file.
SimpleAdapter.ViewBinder	This class can be used by external clients of SimpleAdapter to bind values to views.
SimpleCursorAdapter	An easy adapter to map columns from a cursor to TextViews or ImageViews defined in an XML file.
SimpleCursorAdapter.CursorToStringConverter	This class can be used by external clients of SimpleCursorAdapter to define how the Cursor should be converted to a String.
SimpleCursorAdapter.ViewBinder	This class can be used by external clients of SimpleCursorAdapter to bind values fom the Cursor to views.
SimpleCursorTreeAdapter	An easy adapter to map columns from a cursor to TextViews or ImageViews defined in an XML file.
SimpleCursorTreeAdapter.ViewBinder	This class can be used by external clients of SimpleCursorTreeAdapter to bind values from the Cursor to views.
SimpleDateFormat	[icu enhancement] ICU's replacement for `SimpleDateFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
SimpleDateFormat	`SimpleDateFormat` is a concrete class for formatting and parsing dates in a locale-sensitive manner.
SimpleExpandableListAdapter	An easy adapter to map static data to group and child views defined in an XML file.
SimpleFileVisitor<T>	A simple visitor of files with default behavior to visit all files and to re-throw I/O errors.
SimpleFormatter	Print a brief summary of the `LogRecord` in a human readable format.
SimpleNotation	A class that defines the simple notation style to be used when formatting numbers in NumberFormatter.
SimpleTimeZone	`SimpleTimeZone` is a concrete subclass of `TimeZone` that represents a time zone for use with a Gregorian calendar.
SingleLaunchActivityTestCase<T extends Activity>	This class was deprecated in API level 24. Use ActivityTestRule instead. New tests should be written using the Android Testing Support Library.
SingleLineTransformationMethod	This transformation method causes any newline characters (\n) to be displayed as spaces instead of causing line breaks, and causes carriage return characters (\r) to have no appearance.
SipAudioCall	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
SipAudioCall.Listener	Listener for events relating to a SIP call, such as when a call is being received ("on ringing") or a call is outgoing ("on calling").
SipDetails	Contains the information for SIP.
SipErrorCode	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
SipException	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
SipManager	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
SipProfile	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
SipProfile.Builder	Helper class for creating a `SipProfile`.
SipRegistrationListener	This interface was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
SipSession	This class was deprecated in API level 31. `SipManager` and associated classes are no longer supported and should not be used as the basis of future VOIP apps.
SipSession.Listener	Listener for events relating to a SIP session, such as when a session is being registered ("on registering") or a call is outgoing ("on calling").
SipSession.State	Defines SIP session states, such as "registering", "outgoing call", and "in call".
Size	Immutable class for describing width and height dimensions in pixels.
SizeF	Immutable class for describing width and height dimensions in some arbitrary unit.
SkinTemperatureRecord	Captures the skin temperature of a user.
SkinTemperatureRecord.Builder	Builder class for `SkinTemperatureRecord`
SkinTemperatureRecord.Delta	Skin temperature delta entry of `SkinTemperatureRecord`.
SleepSessionRecord	Captures the user's sleep length and its stages.
SleepSessionRecord.Builder	Builder class for `SleepSessionRecord`
SleepSessionRecord.Stage	Captures the user's length and type of sleep.
SleepSessionRecord.StageType	Identifier for sleeping stage, as returned by `Stage#getType()`.
Slice	This class was deprecated in API level 35. Slice framework has been deprecated, it will not receive any updates from `ERROR(/android.os.Build.VANILLA_ICE_CREAM)` and forward. If you are looking for a framework that sends displayable data from one app to another, consider using `AppSearchManager`.
Slice.Builder	This class was deprecated in API level 35. Slice framework has been deprecated, it will not receive any updates from `ERROR(/android.os.Build.VANILLA_ICE_CREAM)` and forward. If you are looking for a framework that sends displayable data from one app to another, consider using `AppSearchManager`.
SliceItem	This class was deprecated in API level 35. Slice framework has been deprecated, it will not receive any updates from `ERROR(/android.os.Build.VANILLA_ICE_CREAM)` and forward. If you are looking for a framework that sends displayable data from one app to another, consider using `AppSearchManager`.
SliceManager	This class was deprecated in API level 35. Slice framework has been deprecated, it will not receive any updates from `ERROR(/android.os.Build.VANILLA_ICE_CREAM)` and forward. If you are looking for a framework that sends displayable data from one app to another, consider using `AppSearchManager`.
SliceMetrics	This class was deprecated in API level 35. Slice framework has been deprecated, it will not receive any updates from `ERROR(/android.os.Build.VANILLA_ICE_CREAM)` and forward. If you are looking for a framework that sends displayable data from one app to another, consider using `AppSearchManager`.
SliceProvider	This class was deprecated in API level 35. Slice framework has been deprecated, it will not receive any updates from `ERROR(/android.os.Build.VANILLA_ICE_CREAM)` and forward. If you are looking for a framework that sends displayable data from one app to another, consider using `AppSearchManager`.
SliceSpec	This class was deprecated in API level 35. Slice framework has been deprecated, it will not receive any updates from `ERROR(/android.os.Build.VANILLA_ICE_CREAM)` and forward. If you are looking for a framework that sends displayable data from one app to another, consider using `AppSearchManager`.
Slide	This transition tracks changes to the visibility of target views in the start and end scenes and moves views in or out from one of the edges of the scene.
SlidingDrawer	This class was deprecated in API level 17. This class is not supported anymore. It is recommended you base your own implementation on the source code for the Android Open Source Project if you must use it in your application.
SlidingDrawer.OnDrawerCloseListener	Callback invoked when the drawer is closed.
SlidingDrawer.OnDrawerOpenListener	Callback invoked when the drawer is opened.
SlidingDrawer.OnDrawerScrollListener	Callback invoked when the drawer is scrolled.
SmallTest	This @interface was deprecated in API level 24. Use SmallTest instead. New tests should be written using the Android Testing Support Library.
Smoke	This @interface was deprecated in API level 24. New tests should be written using the Android Testing Support Library.
SmsManager	Manages SMS operations such as sending data, text, and pdu SMS messages.
SmsManager	This class was deprecated in API level 4. Replaced by android.telephony.SmsManager that supports both GSM and CDMA.
SmsManager.FinancialSmsCallback	callback for providing asynchronous sms messages for financial app.
SmsMessage	A Short Message Service message.
SmsMessage	This class was deprecated in API level 4. Replaced by android.telephony.SmsMessage that supports both GSM and CDMA.
SmsMessage.MessageClass	SMS Class enumeration.
SmsMessage.MessageClass	This enum was deprecated in API level 4. Use android.telephony.SmsMessage.
SmsMessage.SubmitPdu
SmsMessage.SubmitPdu	This class was deprecated in API level 4. Use android.telephony.SmsMessage.
SNIHostName	Instances of this class represent a server name of type `host_name` in a Server Name Indication (SNI) extension.
SNIMatcher	Instances of this class represent a matcher that performs match operations on an `SNIServerName` instance.
SNIServerName	Instances of this class represent a server name in a Server Name Indication (SNI) extension.
Socket	This class implements client sockets (also called just "sockets").
SocketAddress	This class represents a Socket Address with no protocol attachment.
SocketChannel	A selectable channel for stream-oriented connecting sockets.
SocketException	Thrown to indicate that there is an error creating or accessing a Socket.
SocketFactory	This class creates sockets.
SocketFactory	This interface was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
SocketHandler	Simple network logging `Handler`.
SocketImpl	The abstract class `SocketImpl` is a common superclass of all classes that actually implement sockets.
SocketImplFactory	This interface defines a factory for socket implementations.
SocketKeepalive	Allows applications to request that the system periodically send specific packets on their behalf, using hardware offload to save battery power.
SocketKeepalive.Callback	The callback which app can use to learn the status changes of `SocketKeepalive`.
SocketOption<T>	A socket option associated with a socket.
SocketOptions	Interface of methods to get/set socket options.
SocketPermission	Legacy security code; do not use.
SocketTimeoutException	Signals that a timeout has occurred on a socket read or accept.
SoftApConfiguration	Configuration for a soft access point (a.k.a.
SoftReference<T>	Soft reference objects, which are cleared at the discretion of the garbage collector in response to memory demand.
SortedMap<K, V>	A `Map` that further provides a total ordering on its keys.
SortedSet<E>	A `Set` that further provides a total ordering on its elements.
SoundEffectConstants	Constants to be used to play sound effects via `View#playSoundEffect(int)`
SoundPool	The SoundPool class manages and plays audio resources for applications.
SoundPool.Builder	Builder class for `SoundPool` objects.
SoundPool.OnLoadCompleteListener
Source	An object that implements this interface contains the information needed to act as source input (XML source or transformation instructions).
SourceLocator	This interface is primarily for the purposes of reporting where an error occurred in the XML source or transformation instructions.
SourceRegistrationRequest	Class to hold input to measurement source registration calls.
SourceRegistrationRequest.Builder	Builder for `SourceRegistrationRequest`.
Space	Space is a lightweight View subclass that may be used to create gaps between components in general purpose layouts.
Spannable	This is the interface for text to which markup objects can be attached and detached.
Spannable.Factory	Factory used by TextView to create new `Spannables`.
SpannableString	This is the class for text whose content is immutable but to which markup objects can be attached and detached.
SpannableStringBuilder	This is the class for text whose content and markup can both be changed.
Spanned	This is the interface for text that has markup objects attached to ranges of it.
SpannedString	This is the class for text whose content and markup are immutable.
SpanWatcher	When an object of this type is attached to a Spannable, its methods will be called to notify it that other markup objects have been added, changed, or removed.
SparseArray<E>	`SparseArray` maps integers to Objects and, unlike a normal array of Objects, its indices can contain gaps.
SparseBooleanArray	SparseBooleanArrays map integers to booleans.
SparseIntArray	SparseIntArrays map integers to integers.
SparseLongArray	SparseLongArrays map integers to longs.
Spatializer	Spatializer provides access to querying capabilities and behavior of sound spatialization on the device.
Spatializer.OnHeadTrackerAvailableListener	Interface to be notified of changes to the availability of a head tracker on the audio device to be used by the spatializer effect.
Spatializer.OnSpatializerStateChangedListener	An interface to be notified of changes to the state of the spatializer effect.
SpeechRecognizer	This class provides access to the speech recognition service.
SpeedRecord	Captures the user's speed, e.g. during running or cycling.
SpeedRecord.Builder	Builder class for `SpeedRecord`
SpeedRecord.SpeedRecordSample	Represents a single measurement of the speed, a scalar magnitude.
SpellCheckerInfo	This class is used to specify meta information of a spell checker.
SpellCheckerService	SpellCheckerService provides an abstract base class for a spell checker.
SpellCheckerService.Session	This abstract class should be overridden by a concrete implementation of a spell checker.
SpellCheckerSession	The SpellCheckerSession interface provides the per client functionality of SpellCheckerService.
SpellCheckerSession.SpellCheckerSessionListener	Callback for getting results from text services
SpellCheckerSession.SpellCheckerSessionParams	Parameters used to create a `SpellCheckerSession`.
SpellCheckerSession.SpellCheckerSessionParams.Builder	Builder of `SpellCheckerSessionParams`.
SpellCheckerSubtype	This class is used to specify meta information of a subtype contained in a spell checker.
Spinner	A view that displays one child at a time and lets the user pick among them.
SpinnerAdapter	Extended `Adapter` that is the bridge between a `Spinner` and its data.
SplashScreen	The interface that apps use to talk to the splash screen.
SplashScreen.OnExitAnimationListener	Listens for the splash screen exit event.
SplashScreenView	The view which allows an activity to customize its splash screen exit animation.
Spliterator<T>	An object for traversing and partitioning elements of a source.
Spliterator.OfDouble	A Spliterator specialized for `double` values.
Spliterator.OfInt	A Spliterator specialized for `int` values.
Spliterator.OfLong	A Spliterator specialized for `long` values.
Spliterator.OfPrimitive<T, T_CONS, T_SPLITR extends OfPrimitive<T, T_CONS, T_SPLITR>>	A Spliterator specialized for primitive values.
Spliterators	Static classes and methods for operating on or creating instances of `Spliterator` and its primitive specializations `Spliterator.OfInt`, `Spliterator.OfLong`, and `Spliterator.OfDouble`.
Spliterators.AbstractDoubleSpliterator	An abstract `Spliterator.OfDouble` that implements `trySplit` to permit limited parallelism.
Spliterators.AbstractIntSpliterator	An abstract `Spliterator.OfInt` that implements `trySplit` to permit limited parallelism.
Spliterators.AbstractLongSpliterator	An abstract `Spliterator.OfLong` that implements `trySplit` to permit limited parallelism.
Spliterators.AbstractSpliterator<T>	An abstract `Spliterator` that implements `trySplit` to permit limited parallelism.
SplittableRandom	A generator of uniform pseudorandom values (with period 2⁶⁴) applicable for use in (among other contexts) isolated parallel computations that may generate subtasks.
SQLClientInfoException	The subclass of `SQLException` is thrown when one or more client info properties could not be set on a `Connection`.
SQLData	The interface used for the custom mapping of an SQL user-defined type (UDT) to a class in the Java programming language.
SQLDataException	The subclass of `SQLException` thrown when the SQLState class value is '22', or under vendor-specified conditions.
SQLException	An exception that indicates there was an error with SQL parsing or execution.
SQLException	An exception that provides information on a database access error or other errors.
SQLFeatureNotSupportedException	The subclass of `SQLException` thrown when the SQLState class value is '0A' ( the value is 'zero' A).
SQLInput	An input stream that contains a stream of values representing an instance of an SQL structured type or an SQL distinct type.
SQLIntegrityConstraintViolationException	The subclass of `SQLException` thrown when the SQLState class value is '23', or under vendor-specified conditions.
SQLInvalidAuthorizationSpecException	The subclass of `SQLException` thrown when the SQLState class value is '28', or under vendor-specified conditions.
SQLiteAbortException	An exception that indicates that the SQLite program was aborted.
SQLiteAccessPermException	This exception class is used when sqlite can't access the database file due to lack of permissions on the file.
SQLiteBindOrColumnIndexOutOfRangeException	Thrown if the bind or column parameter index is out of range.
SQLiteBlobTooBigException
SQLiteCantOpenDatabaseException
SQLiteClosable	An object created from a SQLiteDatabase that can be closed.
SQLiteConstraintException	An exception that indicates that an integrity constraint was violated.
SQLiteCursor	A Cursor implementation that exposes results from a query on a `SQLiteDatabase`.
SQLiteCursorDriver	A driver for SQLiteCursors that is used to create them and gets notified by the cursors it creates on significant events in their lifetimes.
SQLiteDatabase	Exposes methods to manage a SQLite database.
SQLiteDatabase.CursorFactory	Used to allow returning sub-classes of `Cursor` when calling query.
SQLiteDatabase.OpenParams	Wrapper for configuration parameters that are used for opening `SQLiteDatabase`
SQLiteDatabase.OpenParams.Builder	Builder for `OpenParams`.
SQLiteDatabaseCorruptException	An exception that indicates that the SQLite database file is corrupt.
SQLiteDatabaseLockedException	Thrown if the database engine was unable to acquire the database locks it needs to do its job.
SQLiteDatatypeMismatchException
SQLiteDiskIOException	Indicates that an IO error occurred while accessing the SQLite database file.
SQLiteDoneException	An exception that indicates that the SQLite program is done.
SQLiteException	A SQLite exception that indicates there was an error with SQL parsing or execution.
SQLiteFullException	An exception that indicates that the SQLite database is full.
SQLiteMisuseException	This error can occur if the application creates a SQLiteStatement object and allows multiple threads in the application use it at the same time.
SqliteObjectLeakedViolation
SQLiteOpenHelper	A helper class to manage database creation and version management.
SQLiteOutOfMemoryException
SQLiteProgram	A base class for compiled SQLite programs.
SQLiteQuery	Represents a query that reads the resulting rows into a `SQLiteQuery`.
SQLiteQueryBuilder	This is a convenience class that helps build SQL queries to be sent to `SQLiteDatabase` objects.
SQLiteRawStatement	A `SQLiteRawStatement` represents a SQLite prepared statement.
SQLiteReadOnlyDatabaseException
SQLiteStatement	Represents a statement that can be executed against a database.
SQLiteTableLockedException
SQLiteTransactionListener	A listener for transaction events.
SQLNonTransientConnectionException	The subclass of `SQLException` thrown for the SQLState class value '08', or under vendor-specified conditions.
SQLNonTransientException	The subclass of `SQLException` thrown when an instance where a retry of the same operation would fail unless the cause of the `SQLException` is corrected.
SQLOutput	The output stream for writing the attributes of a user-defined type back to the database.
SQLPermission	Legacy security code; do not use.
SQLRecoverableException	The subclass of `SQLException` thrown in situations where a previously failed operation might be able to succeed if the application performs some recovery steps and retries the entire transaction or in the case of a distributed transaction, the transaction branch.
SQLSyntaxErrorException	The subclass of `SQLException` thrown when the SQLState class value is '42', or under vendor-specified conditions.
SQLTimeoutException	The subclass of `SQLException` thrown when the timeout specified by `Statement` has expired.
SQLTransactionRollbackException	The subclass of `SQLException` thrown when the SQLState class value is '40', or under vendor-specified conditions.
SQLTransientConnectionException	The subclass of `SQLException` for the SQLState class value '08', or under vendor-specified conditions.
SQLTransientException	The subclass of `SQLException` is thrown in situations where a previoulsy failed operation might be able to succeed when the operation is retried without any intervention by application-level functionality.
SQLWarning	An exception that provides information on database access warnings.
SQLXML	The mapping in the JavaTM programming language for the SQL XML type.
SslCertificate	SSL certificate info (certificate details) class
SslCertificate.DName	A distinguished name helper class: a 3-tuple of: the most specific common name (CN) the most specific organization (O) the most specific organizational unit (OU)
SSLCertificateSocketFactory	This class was deprecated in API level 29. This class has less error-prone replacements using standard APIs. To create an `SSLSocket`, obtain an `SSLSocketFactory` from `SSLSocketFactory#getDefault()` or `SSLContext.getSocketFactory()`. To verify hostnames, pass `"HTTPS"` to `SSLParameters.setEndpointIdentificationAlgorithm(String)`. To enable ALPN, use `SSLParameters.setApplicationProtocols(String[])`. To enable SNI, use `SSLParameters.setServerNames(java.util.List)`.
SSLContext	Instances of this class represent a secure socket protocol implementation which acts as a factory for secure socket factories or `SSLEngine`s.
SSLContextSpi	This class defines the Service Provider Interface (SPI) for the `SSLContext` class.
SSLEngine	A class which enables secure communications using protocols such as the Secure Sockets Layer (SSL) or IETF RFC 2246 "Transport Layer Security" (TLS) protocols, but is transport independent.
SSLEngineResult	An encapsulation of the result state produced by `SSLEngine` I/O calls.
SSLEngineResult.HandshakeStatus	An `SSLEngineResult` enum describing the current handshaking state of this `SSLEngine`.
SSLEngineResult.Status	An `SSLEngineResult` enum describing the overall result of the `SSLEngine` operation.
SSLEngines	Static utility methods for accessing additional functionality of supported instances of `SSLEngine`.
SslError	This class represents a set of one or more SSL errors and the associated SSL certificate.
SslErrorHandler	Represents a request for handling an SSL error.
SSLException	Indicates some kind of error detected by an SSL subsystem.
SSLHandshakeException	Indicates that the client and server could not negotiate the desired level of security.
SSLKeyException	Reports a bad SSL key.
SSLParameters	Encapsulates parameters for an SSL/TLS connection.
SSLPeerUnverifiedException	Indicates that the peer's identity has not been verified.
SSLPermission	Legacy security code; do not use.
SSLProtocolException	Reports an error in the operation of the SSL protocol.
SSLServerSocket	This class extends `ServerSocket`s and provides secure server sockets using protocols such as the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols.
SSLServerSocketFactory	`SSLServerSocketFactory`s create `SSLServerSocket`s.
SSLSession	In SSL, sessions are used to describe an ongoing relationship between two entities.
SSLSessionBindingEvent	This event is propagated to a SSLSessionBindingListener.
SSLSessionBindingListener	This interface is implemented by objects which want to know when they are being bound or unbound from a SSLSession.
SSLSessionCache	File-based cache of established SSL sessions.
SSLSessionContext	A `SSLSessionContext` represents a set of `SSLSession`s associated with a single entity.
SSLSocket	This class extends `Socket`s and provides secure socket using protocols such as the "Secure Sockets Layer" (SSL) or IETF "Transport Layer Security" (TLS) protocols.
SSLSocketFactory	`SSLSocketFactory`s create `SSLSocket`s.
SSLSocketFactory	This class was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
SSLSockets	Static utility methods for accessing additional functionality of supported instances of `SSLSocket`.
Stack<E>	The `Stack` class represents a last-in-first-out (LIFO) stack of objects.
StackOverflowError	Thrown when a stack overflow occurs because an application recurses too deeply.
StackTraceElement	An element in a stack trace, as returned by `Throwable.getStackTrace()`.
StackView
StackWalker	A stack walker.
StackWalker.Option	Stack walker option to configure the stack frame information obtained by a `StackWalker`.
StackWalker.StackFrame	A `StackFrame` object represents a method invocation returned by `StackWalker`.
StaleDataException	This exception is thrown when a Cursor contains stale data and must be requeried before being used again.
StampedLock	A capability-based lock with three modes for controlling read/write access.
StandardCharsets	Constant definitions for the standard `Charsets`.
StandardConstants	Standard constants definitions
StandardCopyOption	Defines the standard copy options.
StandardOpenOption	Defines the standard open options.
StandardProtocolFamily	Defines the standard families of communication protocols.
StandardSocketOptions	Defines the standard socket options.
StandardWatchEventKinds	Defines the standard event kinds.
StartElementListener	Listens for the beginning of elements.
StartForegroundCalledOnStoppedServiceException	Exception thrown when `Service#startForeground` is called on a service that's not actually started.
StatelessTemplate	A template for a `Control` which has no state.
StateListAnimator	Lets you define a number of Animators that will run on the attached View depending on the View's drawable state.
StateListDrawable	Lets you assign a number of graphic images to a single Drawable and swap out the visible item by a string ID value.
Statement	The object used for executing a static SQL statement and returning the results it produces.
StatementEvent	A `StatementEvent` is sent to all `StatementEventListener`s which were registered with a `PooledConnection`.
StatementEventListener	An object that registers to be notified of events that occur on PreparedStatements that are in the Statement pool.
StateSet	State sets are arrays of positive ints where each element represents the state of a `View` (e.g.
StatFs	Retrieve overall information about the space on a filesystem.
StaticInspectionCompanionProvider	An inspection companion provider that finds companions as inner classes or generated code.
StaticIpConfiguration	Class that describes static IP configuration.
StaticIpConfiguration.Builder	Helper class to build a new instance of `StaticIpConfiguration`.
StaticLayout	StaticLayout is a Layout for text that will not be edited after it is laid out.
StaticLayout.Builder	Builder for static layouts.
StatsLog	StatsLog provides an API for developers to send events to statsd.
StatusBarManager	Allows an app to control the status bar.
StatusBarNotification	Class encapsulating a Notification.
StatusHints	Contains status label and icon displayed in the in-call UI.
StepsCadenceRecord	Captures the user's steps cadence.
StepsCadenceRecord.Builder	Builder class for `StepsCadenceRecord`
StepsCadenceRecord.StepsCadenceRecordSample	Represents a single measurement of the steps cadence.
StepsRecord	Captures the number of steps taken since the last reading.
StepsRecord.Builder	Builder class for `StepsRecord`
StorageInfo	The response class of `AppSearchSession#getStorageInfo`.
StorageInfo.Builder	Builder for `StorageInfo` objects.
StorageManager	StorageManager is the interface to the systems storage service.
StorageManager.StorageVolumeCallback	Callback that delivers `StorageVolume` related events.
StorageStats	Storage statistics for a UID, package, or `UserHandle` on a single storage volume.
StorageStatsManager	Access to detailed storage statistics.
StorageVolume	Information about a shared/external storage volume for a specific user.
Stream<T>	A sequence of elements supporting sequential and parallel aggregate operations.
Stream.Builder<T>	A mutable builder for a `Stream`.
StreamConfigurationMap	Immutable class to store the available stream `configurations` to set up `Surfaces` for creating a `capture session` with `CameraDevice.createCaptureSession(SessionConfiguration)`.
StreamCorruptedException	Thrown when control information that was read from an object stream violates internal consistency checks.
StreamEventRequest	A request for Stream Event from broadcast signal.
StreamEventResponse	A response for Stream Event from broadcast signal.
StreamHandler	Stream based logging `Handler`.
StreamingService	Class used to represent a single MBMS stream.
StreamingServiceCallback	A callback class for use when the application is actively streaming content.
StreamingServiceInfo	Describes a single MBMS streaming service.
StreamResult	Acts as an holder for a transformation result, which may be XML, plain Text, HTML, or some other form of markup.
StreamSource	Acts as an holder for a transformation Source in the form of a stream of XML markup.
StreamSupport	Low-level utility methods for creating and manipulating streams.
StreamTokenizer	The `StreamTokenizer` class takes an input stream and parses it into "tokens", allowing the tokens to be read one at a time.
StrictHostnameVerifier	This class was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
StrictMath	The class `StrictMath` contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
StrictMode	StrictMode is a developer tool which detects things you might be doing by accident and brings them to your attention so you can fix them.
StrictMode.OnThreadViolationListener	When #`StrictMode.ThreadPolicy.Builder.penaltyListener(Executor, OnThreadViolationListener)` is enabled, the listener is called on the provided executor when a Thread violation occurs.
StrictMode.OnVmViolationListener	When #`StrictMode.VmPolicy.Builder.penaltyListener(Executor, OnVmViolationListener)` is enabled, the listener is called on the provided executor when a VM violation occurs.
StrictMode.ThreadPolicy	`StrictMode` policy applied to a certain thread.
StrictMode.ThreadPolicy.Builder	Creates `ThreadPolicy` instances.
StrictMode.VmPolicy	`StrictMode` policy applied to all threads in the virtual machine's process.
StrictMode.VmPolicy.Builder	Creates `VmPolicy` instances.
StrikethroughSpan	A span that strikes through the text it's attached to.
String	The `String` class represents character strings.
StringBuffer	A thread-safe, mutable sequence of characters.
StringBufferInputStream	This class was deprecated in API level 1. This class does not properly convert characters into bytes. As of JDK 1.1, the preferred way to create a stream from a string is via the `StringReader` class.
StringBuilder	A mutable sequence of characters.
StringBuilderPrinter	Implementation of a `Printer` that sends its output to a `StringBuilder`.
StringCharacterIterator	`StringCharacterIterator` implements the `CharacterIterator` protocol for a `String`.
StringIndexOutOfBoundsException	Thrown by `String` methods to indicate that an index is either negative or greater than the size of the string.
StringJoiner	`StringJoiner` is used to construct a sequence of characters separated by a delimiter and optionally starting with a supplied prefix and ending with a supplied suffix.
StringPrepParseException	Exception that signals an error has occurred while parsing the input to StringPrep or IDNA.
StringReader	A character stream whose source is a string.
StringSearch	`StringSearch` is a `SearchIterator` that provides language-sensitive text searching based on the comparison rules defined in a `RuleBasedCollator` object.
StringTokenizer	The string tokenizer class allows an application to break a string into tokens.
StringWriter	A character stream that collects its output in a string buffer, which can then be used to construct a string.
StrongBoxUnavailableException	Indicates that an operation could not be performed because the requested security hardware is not available.
Struct	The standard mapping in the Java programming language for an SQL structured type.
StructCmsghdr	Corresponds to C's `struct cmsghdr`.
StructMsghdr	Corresponds to C's `struct msghdr`
StructPollfd	Used as an in/out parameter to `Os#poll`.
StructStat	File information returned by `Os#fstat`, `Os#lstat`, and `Os#stat`.
StructStatVfs	File information returned by `Os#fstatvfs` and `Os#statvfs`.
StructTimespec	Corresponds to C's `struct timespec` from `<time.h>`.
StructTimeval	Corresponds to C's `struct timeval` from `sys/time.h`.
StructUtsname	Information returned by `Os#uname`.
StyleSpan	Span that allows setting the style of the text it's attached to.
Subject	A `Subject` represents a grouping of related information for a single entity, such as a person.
SubjectDomainCombiner	Legacy security code; do not use.
SubMenu	Subclass of `Menu` for sub menus.
SubmissionPublisher<T>	A `Flow.Publisher` that asynchronously issues submitted (non-null) items to current subscribers until it is closed.
SubscribeConfig	Defines the configuration of an Aware subscribe session.
SubscribeConfig.Builder	Builder used to build `SubscribeConfig` objects.
SubscribeDiscoverySession	A class representing a Aware subscribe session.
SubscriptionInfo	A Parcelable class for Subscription Information.
SubscriptionManager	Subscription manager provides the mobile subscription information.
SubscriptionManager.OnOpportunisticSubscriptionsChangedListener	A listener class for monitoring changes to `SubscriptionInfo` records of opportunistic subscriptions.
SubscriptionManager.OnSubscriptionsChangedListener	A listener class for monitoring changes to `SubscriptionInfo` records.
SubscriptionPlan	Description of a billing relationship plan between a carrier and a specific subscriber.
SubscriptionPlan.Builder	Builder for a `SubscriptionPlan`.
SubscriptSpan	The span that moves the position of the text baseline lower.
SubtitleData	Class encapsulating subtitle data, as received through the `MediaPlayer.OnSubtitleDataListener` interface.
SuggestionRangeSpan	A SuggestionRangeSpan is used to show which part of an EditText is affected by a suggestion popup window.
SuggestionsInfo	This class contains a metadata of suggestions from the text service
SuggestionSpan	Holds suggestion candidates for the text enclosed in this span.
SumPathEffect
SuperscriptSpan	The span that moves the position of the text baseline higher.
SupplicantState	From `defs.h` in `wpa_supplicant`.
Supplier<T>	Represents a supplier of results.
Suppress	This @interface was deprecated in API level 24. Use Suppress instead. New tests should be written using the Android Testing Support Library.
SuppressLint	Indicates that Lint should ignore the specified warnings for the annotated element.
SuppressWarnings	Indicates that the named compiler warnings should be suppressed in the annotated element (and in all program elements contained in the annotated element).
Surface	Handle onto a raw buffer that is being managed by the screen compositor.
Surface.OutOfResourcesException	Exception thrown when a Canvas couldn't be locked with `Surface#lockCanvas`, or when a SurfaceTexture could not successfully be allocated.
SurfaceControl	Handle to an on-screen Surface managed by the system compositor.
SurfaceControl.Builder	Builder class for `SurfaceControl` objects.
SurfaceControl.Transaction	An atomic set of changes to a set of SurfaceControl.
SurfaceControl.TransactionCommittedListener	Interface to handle request to `SurfaceControl.Transaction#addTransactionCommittedListener(Executor, TransactionCommittedListener)`
SurfaceControl.TransactionStats	Transaction stats given to the listener registered in `SurfaceControl.Transaction#addTransactionCompletedListener`
SurfaceControl.TrustedPresentationThresholds	This class was deprecated in API level 35. Use `TrustedPresentationThresholds` instead.
SurfaceControlInputReceiver	Provides a mechanism for a SurfaceControl to receive input events.
SurfaceControlViewHost	Utility class for adding a View hierarchy to a `SurfaceControl`.
SurfaceControlViewHost.SurfacePackage	Package encapsulating a Surface hierarchy which contains interactive view elements.
SurfaceHolder	Abstract interface to someone holding a display surface.
SurfaceHolder.BadSurfaceTypeException	Exception that is thrown from `SurfaceHolder.lockCanvas()` when called on a Surface whose type is SURFACE_TYPE_PUSH_BUFFERS.
SurfaceHolder.Callback	A client may implement this interface to receive information about changes to the surface.
SurfaceHolder.Callback2	Additional callbacks that can be received for `Callback`.
SurfacePackageToken	An opaque reference to content that can be displayed in a `SurfaceView`.
SurfaceSyncGroup	A way for data to be gathered so multiple surfaces can be synced.
SurfaceTexture	Captures frames from an image stream as an OpenGL ES texture.
SurfaceTexture.OnFrameAvailableListener	Callback interface for being notified that a new stream frame is available.
SurfaceTexture.OutOfResourcesException	This class was deprecated in API level 19. No longer thrown. `Surface.OutOfResourcesException` is used instead.
SurfaceView	Provides a dedicated drawing surface embedded inside of a view hierarchy.
SurroundingText	Information about the surrounding text around the cursor for use by an input method.
SweepGradient
Switch	A Switch is a two-state toggle widget.
SwitchPreference	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
SymbolTable	An interface that defines both lookup protocol and parsing of symbolic names.
SyncAdapterType	Value type that represents a SyncAdapterType.
SyncBaseInstrumentation	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
SyncContext
SyncFailedException	Signals that a sync operation has failed.
SyncFence	A SyncFence represents a synchronization primitive which signals when hardware units have completed work on a particular resource.
SynchronousQueue<E>	A blocking queue in which each insert operation must wait for a corresponding remove operation by another thread, and vice versa.
SyncInfo	Information about the sync operation that is currently underway.
SyncNotedAppOp	Description of an app-op that was noted for the current process.
SyncParams	Structure for common A/V sync params.
SyncRequest	Convenience class to construct sync requests.
SyncRequest.Builder	Builder class for a `SyncRequest`.
SyncResult	This class is used to communicate the results of a sync operation to the SyncManager.
SyncStateContract	The ContentProvider contract for associating data with ana data array account.
SyncStateContract.Columns
SyncStateContract.Constants
SyncStateContract.Helpers
SyncStats	Used to record various statistics about the result of a sync operation.
SyncStatusObserver
SynthesisCallback	A callback to return speech data synthesized by a text to speech engine.
SynthesisRequest	Contains data required by engines to synthesize speech.
System	The `System` class contains several useful class fields and methods.
SystemCleaner	Java.lang.ref.Cleaner encourages each library to create a Cleaner, with an associated thread, to process Cleaner Runnables for that library's registered cleaning actions.
SystemClock	Core timekeeping facilities.
SystemFonts	Provides the system font configurations.
SystemHealthManager	Provides access to data about how various system resources are used by applications.
SystemUpdateInfo	A class containing information about a pending system update.
SystemUpdatePolicy	Determines when over-the-air system updates are installed on a device.
SystemUpdatePolicy.ValidationFailedException	An exception class that represents various validation errors thrown from `SystemUpdatePolicy#setFreezePeriods` and `DevicePolicyManager#setSystemUpdatePolicy`

T

TabActivity	This class was deprecated in API level 13. New applications should use Fragments instead of this class; to continue to run on older devices, you can use the v4 support library which provides a version of the Fragment API that is compatible down to `Build.VERSION_CODES.DONUT`.
TabHost	This class was deprecated in API level 30. new applications should use fragment APIs instead of this class: Use TabLayout and ViewPager instead.
TabHost.OnTabChangeListener	Interface definition for a callback to be invoked when tab changed
TabHost.TabContentFactory	Makes the content of a tab when it is selected.
TabHost.TabSpec	A tab has a tab indicator, content, and a tag that is used to keep track of it.
TableLayout	A layout that arranges its children into rows and columns.
TableLayout.LayoutParams	This set of layout parameters enforces the width of each child to be `ViewGroup.LayoutParams.MATCH_PARENT` and the height of each child to be `ViewGroup.LayoutParams.WRAP_CONTENT`, but only if the height is not specified.
TableRequest	A request for Table from broadcast signal.
TableResponse	A response for Table from broadcast signal.
TableResponse.Builder	Builder for `TableResponse`.
TableRow	A layout that arranges its children horizontally.
TableRow.LayoutParams	Set of layout parameters used in table rows.
TabStopSpan	Paragraph affecting span that changes the position of the tab with respect to the leading margin of the line.
TabStopSpan.Standard	The default implementation of TabStopSpan that allows setting the offset of the tab stop from the leading margin of the first line of text.
TabWidget	This class was deprecated in API level 30. new applications should use fragment APIs instead of this class: Use TabLayout and ViewPager instead.
Tag	Represents an NFC tag that has been discovered.
TagLostException
TagTechnology	`TagTechnology` is an interface to a technology in a `Tag`.
TaiwanCalendar	`TaiwanCalendar` is a subclass of `GregorianCalendar` that numbers years since 1912.
Target	Indicates the contexts in which an annotation interface is applicable.
TargetApi	Indicates that Lint should treat this type as targeting a given API level, no matter what the project target is.
TargetUser	Class representing the target user of a policy set by an admin (set from `DevicePolicyManager`), this is passed in to `PolicyUpdateReceiver#onPolicySetResult` and `PolicyUpdateReceiver#onPolicyChanged`.
TaskInfo	Stores information about a particular Task.
TaskStackBuilder	Utility class for constructing synthetic back stacks for cross-task navigation on Android 3.0 and newer.
TelecomManager	Provides access to information about active calls and registration/call-management functionality.
Telephony	The Telephony provider contains data related to phone operation, specifically SMS and MMS messages, access to the APN list, including the MMSC to use, and the service state.
Telephony.BaseMmsColumns	Base columns for tables that contain MMSs.
Telephony.CanonicalAddressesColumns	Columns for the "canonical_addresses" table used by MMS and SMS.
Telephony.CarrierId	Contains carrier identification information for the current subscriptions.
Telephony.Carriers	Carriers class contains information about APNs, including MMSC information.
Telephony.Mms	Contains all MMS messages.
Telephony.Mms.Addr	Contains address information for an MMS message.
Telephony.Mms.Draft	Contains all MMS messages in the MMS app drafts folder.
Telephony.Mms.Inbox	Contains all MMS messages in the MMS app inbox.
Telephony.Mms.Intents	Intents class.
Telephony.Mms.Outbox	Contains all MMS messages in the MMS app outbox.
Telephony.Mms.Part	Contains message parts.
Telephony.Mms.Rate	Message send rate table.
Telephony.Mms.Sent	Contains all MMS messages in the MMS app sent folder.
Telephony.MmsSms	Contains all MMS and SMS messages.
Telephony.MmsSms.PendingMessages	Contains pending messages info.
Telephony.ServiceStateTable	Constants for interfacing with the ServiceStateProvider and the different fields of the `ServiceState` class accessible through the provider.
Telephony.Sms	Contains all text-based SMS messages.
Telephony.Sms.Conversations	Contains a view of SMS conversations (also referred to as threads).
Telephony.Sms.Draft	Contains all draft text-based SMS messages in the SMS app.
Telephony.Sms.Inbox	Contains all text-based SMS messages in the SMS app inbox.
Telephony.Sms.Intents	Contains constants for SMS related Intents that are broadcast.
Telephony.Sms.Outbox	Contains all pending outgoing text-based SMS messages.
Telephony.Sms.Sent	Contains all sent text-based SMS messages in the SMS app.
Telephony.TextBasedSmsColumns	Base columns for tables that contain text-based SMSs.
Telephony.Threads	Helper functions for the "threads" table used by MMS and SMS.
Telephony.ThreadsColumns	Columns for the "threads" table used by MMS and SMS.
TelephonyCallback	A callback class for monitoring changes in specific telephony states on the device, including service state, signal strength, message waiting indicator (voicemail), and others.
TelephonyCallback.ActiveDataSubscriptionIdListener	Interface for active data subscription ID listener.
TelephonyCallback.BarringInfoListener	Interface for barring information listener.
TelephonyCallback.CallDisconnectCauseListener	Interface for call disconnect cause listener.
TelephonyCallback.CallForwardingIndicatorListener	Interface for call-forwarding indicator listener.
TelephonyCallback.CallStateListener	Interface for call state listener.
TelephonyCallback.CarrierNetworkListener	Interface for carrier network listener.
TelephonyCallback.CellInfoListener	Interface for cell info listener.
TelephonyCallback.CellLocationListener	Interface for device cell location listener.
TelephonyCallback.DataActivationStateListener	Interface for SIM data activation state listener.
TelephonyCallback.DataActivityListener	Interface for data activity state listener.
TelephonyCallback.DataConnectionStateListener	Interface for data connection state listener.
TelephonyCallback.DisplayInfoListener	Interface for display info listener.
TelephonyCallback.EmergencyNumberListListener	Interface for the current emergency number list listener.
TelephonyCallback.ImsCallDisconnectCauseListener	Interface for IMS call disconnect cause listener.
TelephonyCallback.MessageWaitingIndicatorListener	Interface for message waiting indicator listener.
TelephonyCallback.PhysicalChannelConfigListener	Interface for current physical channel configuration listener.
TelephonyCallback.PreciseDataConnectionStateListener	Interface for precise data connection state listener.
TelephonyCallback.RegistrationFailedListener	Interface for registration failures listener.
TelephonyCallback.ServiceStateListener	Interface for service state listener.
TelephonyCallback.SignalStrengthsListener	Interface for network signal strengths listener.
TelephonyCallback.UserMobileDataStateListener	Interface for user mobile data state listener.
TelephonyDisplayInfo	TelephonyDisplayInfo contains telephony-related information used for display purposes only.
TelephonyManager	Provides access to information about the telephony services on the device.
TelephonyManager.CallComposerException	Exception that may be supplied to the callback in `TelephonyManager.uploadCallComposerPicture(InputStream, String, Executor, OutcomeReceiver)` if something goes awry.
TelephonyManager.CellInfoCallback	Callback for providing asynchronous `CellInfo` on request
TelephonyManager.ModemErrorException	Exception that is supplied to the callback in `TelephonyManager.getNetworkSlicingConfiguration(Executor, OutcomeReceiver)` if the modem returned a failure.
TelephonyManager.NetworkSlicingException	Exception that may be supplied to the callback in `TelephonyManager.getNetworkSlicingConfiguration(Executor, OutcomeReceiver)` if something goes awry.
TelephonyManager.TimeoutException	Exception that is supplied to the callback in `TelephonyManager.getNetworkSlicingConfiguration(Executor, OutcomeReceiver)` if the system timed out waiting for a response from the Radio.
TelephonyManager.UssdResponseCallback	Used to notify callers of `TelephonyManager#sendUssdRequest(String, UssdResponseCallback, Handler)` when the network either successfully executes a USSD request, or if there was a failure while executing the request.
TelephonyNetworkSpecifier	NetworkSpecifier object for cellular network request.
TelephonyNetworkSpecifier.Builder	Builder to create `TelephonyNetworkSpecifier` object.
TelephonyScanManager	Manages the radio access network scan requests and callbacks.
TelephonyScanManager.NetworkScanCallback	The caller of `TelephonyManager.requestNetworkScan(android.telephony.NetworkScanRequest, java.util.concurrent.Executor, android.telephony.TelephonyScanManager.NetworkScanCallback)` should implement and provide this callback so that the scan results or errors can be returned.
Temperature	Represents a unit of temperature.
TemperatureControlTemplate	A template for a temperature related `Control` that supports multiple modes.
TemperatureDelta	Represents a unit of temperature difference.
Templates	An object that implements this interface is the runtime representation of processed transformation instructions.
TemplatesHandler	A SAX ContentHandler that may be used to process SAX parse events (parsing transformation instructions) into a Templates object.
Temporal	Framework-level interface defining read-write access to a temporal object, such as a date, time, offset or some combination of these.
TemporalAccessor	Framework-level interface defining read-only access to a temporal object, such as a date, time, offset or some combination of these.
TemporalAdjuster	Strategy for adjusting a temporal object.
TemporalAdjusters	Common and useful TemporalAdjusters.
TemporalAmount	Framework-level interface defining an amount of time, such as "6 hours", "8 days" or "2 years and 3 months".
TemporalField	A field of date-time, such as month-of-year or minute-of-hour.
TemporalQueries	Common implementations of `TemporalQuery`.
TemporalQuery<R>	Strategy for querying a temporal object.
TemporalUnit	A unit of date-time, such as Days or Hours.
TestAdSelectionManager	`TestAdSelectionManager` provides APIs for apps and ad SDKs to test ad selection processes.
TestCustomAudienceManager	TestCustomAudienceManager provides APIs for app and ad-SDKs to test custom audiences.
TestLooperManager	Blocks a looper from executing any messages, and allows the holder of this object to control when and which messages get executed until it is released.
TestMethod	This class was deprecated in API level 26. New tests should be written using the Android Testing Support Library.
TestSuiteBuilder	This class was deprecated in API level 26. New tests should be written using the Android Testing Support Library.
TestSuiteBuilder.FailedToCreateTests	This class was deprecated in API level 26. New tests should be written using the Android Testing Support Library.
TestSuiteProvider	This interface was deprecated in API level 24. Use AndroidJUnitRunner instead. New tests should be written using the Android Testing Support Library.
TestTarget	This @interface was deprecated in API level 14. Obsolete.
TestTargetClass	This @interface was deprecated in API level 14. Obsolete.
Text	The `Text` interface inherits from `CharacterData` and represents the textual content (termed character data in XML) of an `Element` or `Attr`.
TextAppearanceInfo	Information about text appearance in an editor, passed through `CursorAnchorInfo` for use by `InputMethodService`.
TextAppearanceInfo.Builder	Builder for `TextAppearanceInfo`.
TextAppearanceSpan	Sets the text appearance using the given `TextAppearance` attributes.
TextAttribute	The data class that IME can take extra information to applications when setting the text.
TextAttribute	The `TextAttribute` class defines attribute keys and attribute values used for text rendering.
TextAttribute.Builder	Builder for creating a `TextAttribute`.
TextBoundsInfo	The text bounds information of a slice of text in the editor.
TextBoundsInfo.Builder	The builder class to create a `TextBoundsInfo` object.
TextBoundsInfoResult	The object that holds the result of the `InputConnection#requestTextBoundsInfo(RectF, Executor, Consumer)` call.
TextClassification	Information for generating a widget to handle classified text.
TextClassification.Builder	Builder for building `TextClassification` objects.
TextClassification.Request	A request object for generating TextClassification.
TextClassification.Request.Builder	A builder for building TextClassification requests.
TextClassificationContext	A representation of the context in which text classification would be performed.
TextClassificationContext.Builder	A builder for building a TextClassification context.
TextClassificationManager	Interface to the text classification service.
TextClassificationSessionFactory	An interface for creating a session-aware TextClassifier.
TextClassificationSessionId	This class represents the id of a text classification session.
TextClassifier	Interface for providing text classification related features.
TextClassifier.EntityConfig	Configuration object for specifying what entity types to identify.
TextClassifier.EntityConfig.Builder	Builder class to construct the `EntityConfig` object.
TextClassifierEvent	This class represents events that are sent by components to the `TextClassifier` to report something of note that relates to a feature powered by the TextClassifier.
TextClassifierEvent.Builder<T extends Builder<T>>	Builder to build a text classifier event.
TextClassifierEvent.ConversationActionsEvent	This class represents events that are related to the conversation actions feature.
TextClassifierEvent.ConversationActionsEvent.Builder	Builder class for `ConversationActionsEvent`.
TextClassifierEvent.LanguageDetectionEvent	This class represents events that are related to the language detection feature.
TextClassifierEvent.LanguageDetectionEvent.Builder	Builder class for `LanguageDetectionEvent`.
TextClassifierEvent.TextLinkifyEvent	This class represents events that are related to the smart linkify feature.
TextClassifierEvent.TextLinkifyEvent.Builder	Builder class for `TextLinkifyEvent`.
TextClassifierEvent.TextSelectionEvent	This class represents events that are related to the smart text selection feature.
TextClassifierEvent.TextSelectionEvent.Builder	Builder class for `TextSelectionEvent`.
TextClock	`TextClock` can display the current date and/or time as a formatted string.
TextDirectionHeuristic	Interface for objects that use a heuristic for guessing at the paragraph direction by examining text.
TextDirectionHeuristics	Some objects that implement `TextDirectionHeuristic`.
TextElementListener	Listens for the beginning and ending of text elements.
TextInfo	This class contains a metadata of the input of TextService
TextKeyListener	This is the key listener for typing normal text.
TextKeyListener.Capitalize
TextLanguage	Represents the result of language detection of a piece of text.
TextLanguage.Builder	Builder used to build TextLanguage objects.
TextLanguage.Request	A request object for detecting the language of a piece of text.
TextLanguage.Request.Builder	A builder for building TextLanguage requests.
TextLinks	A collection of links, representing subsequences of text and the entity types (phone number, address, url, etc) they may be.
TextLinks.Builder	A builder to construct a TextLinks instance.
TextLinks.Request	A request object for generating TextLinks.
TextLinks.Request.Builder	A builder for building TextLinks requests.
TextLinks.TextLink	A link, identifying a substring of text and possible entity types for it.
TextLinks.TextLinkSpan	A ClickableSpan for a TextLink.
TextPaint	TextPaint is an extension of Paint that leaves room for some extra data used during text measuring and drawing.
TextRunShaper	Provides conversion from a text into glyph array.
TextSelection	Information about where text selection should be.
TextSelection.Builder	Builder used to build `TextSelection` objects.
TextSelection.Request	A request object for generating TextSelection.
TextSelection.Request.Builder	A builder for building TextSelection requests.
TextServicesManager	System API to the overall text services, which arbitrates interaction between applications and text services.
TextShaper	Provides text shaping for multi-styled text.
TextShaper.GlyphsConsumer	A consumer interface for accepting text shape result.
TextSnapshot	An immutable data snapshot of text editing state.
TextStyle	Enumeration of the style of text formatting and parsing.
TextSwitcher	Specialized `ViewSwitcher` that contains only children of type `TextView`.
TextToSpeech	Synthesizes speech from text for immediate playback or to create a sound file.
TextToSpeech.Engine	Constants and parameter names for controlling text-to-speech.
TextToSpeech.EngineInfo	Information about an installed text-to-speech engine.
TextToSpeech.OnInitListener	Interface definition of a callback to be invoked indicating the completion of the TextToSpeech engine initialization.
TextToSpeech.OnUtteranceCompletedListener	This interface was deprecated in API level 18. Use `UtteranceProgressListener` instead.
TextToSpeechService	Abstract base class for TTS engine implementations.
TextureView	A TextureView can be used to display a content stream, such as that coming from a camera preview, a video, or an OpenGL scene.
TextureView.SurfaceTextureListener	This listener can be used to be notified when the surface texture associated with this texture view is available.
TextUtils
TextUtils.EllipsizeCallback
TextUtils.SimpleStringSplitter	A simple string splitter.
TextUtils.StringSplitter	An interface for splitting strings according to rules that are opaque to the user of this interface.
TextUtils.TruncateAt
TextValueSanitizer	Sanitizes a text `AutofillValue` using a regular expression (regex) substitution.
TextView	A user interface element that displays text to the user.
TextView.BufferType	Type of the text buffer that defines the characteristics of the text such as static, styleable, or editable.
TextView.OnEditorActionListener	Interface definition for a callback to be invoked when an action is performed on the editor.
TextView.SavedState	User interface state that is stored by TextView for implementing `View#onSaveInstanceState`.
TextWatcher	When an object of this type is attached to an Editable, its methods will be called when the text is changed.
ThaiBuddhistChronology	The Thai Buddhist calendar system.
ThaiBuddhistDate	A date in the Thai Buddhist calendar system.
ThaiBuddhistEra	An era in the Thai Buddhist calendar system.
ThemedSpinnerAdapter	An extension of SpinnerAdapter that is capable of inflating drop-down views against a different theme than normal views.
Thread	A thread is a thread of execution in a program.
Thread.State	A thread state.
Thread.UncaughtExceptionHandler	Interface for handlers invoked when a `Thread` abruptly terminates due to an uncaught exception.
ThreadDeath	An instance of `ThreadDeath` is thrown in the victim thread when the (deprecated) `Thread#stop()` method is invoked.
ThreadFactory	An object that creates new threads on demand.
ThreadGroup	A thread group represents a set of threads.
ThreadLocal<T>	This class provides thread-local variables.
ThreadLocalRandom	A random number generator (with period 2⁶⁴) isolated to the current thread.
ThreadPoolExecutor	An `ExecutorService` that executes each submitted task using one of possibly several pooled threads, normally configured using `Executors` factory methods.
ThreadPoolExecutor.AbortPolicy	A handler for rejected tasks that throws a `RejectedExecutionException`.
ThreadPoolExecutor.CallerRunsPolicy	A handler for rejected tasks that runs the rejected task directly in the calling thread of the `execute` method, unless the executor has been shut down, in which case the task is discarded.
ThreadPoolExecutor.DiscardOldestPolicy	A handler for rejected tasks that discards the oldest unhandled request and then retries `execute`, unless the executor is shut down, in which case the task is discarded.
ThreadPoolExecutor.DiscardPolicy	A handler for rejected tasks that silently discards the rejected task.
Throwable	The `Throwable` class is the superclass of all errors and exceptions in the Java language.
ThumbnailTemplate	A template for a `Control` that displays an image.
ThumbnailUtils	Utilities for generating visual thumbnails from files.
Tile	A Tile holds the state of a tile that will be displayed in Quick Settings.
TileService	A TileService provides the user a tile that can be added to Quick Settings.
Time	This class was deprecated in API level 22. Use `GregorianCalendar` instead.
Time	A thin wrapper around the `java.util.Date` class that allows the JDBC API to identify this as an SQL `TIME` value.
TimeAnimator	This class provides a simple callback mechanism to listeners that is synchronized with all other animators in the system.
TimeAnimator.TimeListener	Implementors of this interface can set themselves as update listeners to a `TimeAnimator` instance to receive callbacks on every animation frame to receive the total time since the animator started and the delta time since the last frame.
TimedMetaData	Class that embodies one timed metadata access unit, including a time stamp, and raw uninterpreted byte-array extracted directly from the container.
TimedText	Class to hold the timed text's metadata, including: The characters for rendering The rendering position for the timed text To render the timed text, applications need to do the following: Implement the `MediaPlayer.OnTimedTextListener` interface Register the `MediaPlayer.OnTimedTextListener` callback on a MediaPlayer object that is used for playback When a onTimedText callback is received, do the following: call `getText()` to get the characters for rendering call `getBounds()` to get the text rendering area/region
TimeFormatException
TimeInstantRangeFilter	Specification of time range for read and delete requests.
TimeInstantRangeFilter.Builder	Builder class for `TimeInstantRangeFilter`
TimeInterpolator	A time interpolator defines the rate of change of an animation.
TimeKeyListener	For entering times in a text field.
TimelineRequest	A request for Timeline from broadcast signal.
TimelineResponse	A response for Timeline from broadcast signal.
TimeoutException	Exception thrown when a blocking operation times out.
TimePicker	A widget for selecting the time of day, in either 24-hour or AM/PM mode.
TimePicker.OnTimeChangedListener	The callback interface used to indicate the time has been adjusted.
TimePickerDialog	A dialog that prompts the user for the time of day using a `TimePicker`.
TimePickerDialog.OnTimeSetListener	The callback interface used to indicate the user is done filling in the time (e.g. they clicked on the 'OK' button).
Timer	A facility for threads to schedule tasks for future execution in a background thread.
TimeRangeFilter	A Base class to represent a request for time range for read and delete requests.
TimerStat	A TimerStat object stores a count and a time.
TimerTask	A task that can be scheduled for one-time or repeated execution by a `Timer`.
Timestamp	This class encapsulates information about a signed timestamp.
Timestamp	A thin wrapper around `java.util.Date` that allows the JDBC API to identify this as an SQL `TIMESTAMP` value.
TimeUnit	Measurement unit for time units.
TimeUnit	A `TimeUnit` represents time durations at a given unit of granularity and provides utility methods to convert across units, and to perform timing and delay operations in these units.
TimeUtils	A class containing utility methods related to time zones.
TimeZone	[icu enhancement] ICU's replacement for `TimeZone`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
TimeZone	`TimeZone` represents a time zone offset, and also figures out daylight savings.
TimeZone.SystemTimeZoneType	[icu] System time zone type constants used by filtering zones in `TimeZone#getAvailableIDs(SystemTimeZoneType, String, Integer)`
TimeZoneFormat	`TimeZoneFormat` supports time zone display name formatting and parsing.
TimeZoneFormat.GMTOffsetPatternType	Offset pattern type enum.
TimeZoneFormat.ParseOption	Parse option enum, used for specifying optional parse behavior.
TimeZoneFormat.Style	Time zone display format style enum used by format/parse APIs in `TimeZoneFormat`.
TimeZoneFormat.TimeType	Time type enum used for receiving time type (standard time, daylight time or unknown) in `TimeZoneFormat` APIs.
TimeZoneNames	`TimeZoneNames` is an abstract class representing the time zone display name data model defined by UTS#35 Unicode Locale Data Markup Language (LDML).
TimeZoneNames.NameType	Time zone display name types
TimingLogger	This class was deprecated in API level 30. Use `Trace`, or Android Studio. In general, milliseconds is the wrong granularity for method-level tracing. Rounding errors can overemphasize cheap operations, or underemphasize repeated operations. This timing system also does not take CPU scheduling or frequency into account.
Toast	A toast is a view containing a quick little message for the user. The toast class helps you create and show those.
Toast.Callback	Callback object to be called when the toast is shown or hidden.
ToDoubleBiFunction<T, U>	Represents a function that accepts two arguments and produces a double-valued result.
ToDoubleFunction<T>	Represents a function that produces a double-valued result.
ToggleButton	Displays checked/unchecked states as a button with a "light" indicator and by default accompanied with the text "ON" or "OFF".
ToggleRangeTemplate	A template for a `Control` supporting toggling and a range.
ToggleTemplate	A template for a `Control` with a single button that can be toggled between two states.
ToIntBiFunction<T, U>	Represents a function that accepts two arguments and produces an int-valued result.
ToIntFunction<T>	Represents a function that produces an int-valued result.
TokenWatcher	A TokenWatcher watches a collection of `IBinder`s.
ToLongBiFunction<T, U>	Represents a function that accepts two arguments and produces a long-valued result.
ToLongFunction<T>	Represents a function that produces a long-valued result.
ToneGenerator	This class provides methods to play DTMF tones (ITU-T Recommendation Q.23), call supervisory tones (3GPP TS 22.001, CEPT) and proprietary tones (3GPP TS 31.111).
TonemapCurve	Immutable class for describing a `2 x M x 3` tonemap curve of floats.
Toolbar	A standard toolbar for use within application content.
Toolbar.LayoutParams	Layout information for child views of Toolbars.
Toolbar.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
TooManyListenersException	The `TooManyListenersException` Exception is used as part of the Java Event model to annotate and implement a unicast special case of a multicast Event Source.
Topic	Represent the topic result from the getTopics API.
TopicsManager	TopicsManager provides APIs for App and Ad-Sdks to get the user interest topics in a privacy preserving way.
TotalCaloriesBurnedRecord	Total energy burned by the user in `Energy`, including active & basal energy burned (BMR).
TotalCaloriesBurnedRecord.Builder	Builder class for `TotalCaloriesBurnedRecord`
TotalCaptureResult	The total assembled results of a single image capture from the image sensor.
Touch
TouchDelegate	Helper class to handle situations where you want a view to have a larger touch area than its actual view bounds.
TouchInteractionController	This class allows a service to handle touch exploration and the detection of specialized accessibility gestures.
TouchInteractionController.Callback	callbacks allow services to receive motion events and state change updates.
TouchUtils	This class was deprecated in API level 24. Use Espresso UI testing framework instead. New tests should be written using the Android Testing Support Library.
Trace	Writes trace events to the system trace buffer.
TracingConfig	Holds tracing configuration information and predefined settings.
TracingConfig.Builder	Builder used to create `TracingConfig` objects.
TracingController	Manages tracing of WebViews.
TrackChangeEvent	Playback track change event.
TrackChangeEvent.Builder	A builder for `TrackChangeEvent`
TrafficDescriptor	A traffic descriptor, as defined in 3GPP TS 24.526 Section 5.2.
TrafficDescriptor.Builder	Provides a convenient way to set the fields of a `TrafficDescriptor` when creating a new instance.
TrafficStats	Class that provides network traffic statistics.
TrainingExampleRecord	One record of `TrainingExamplesOutput`.
TrainingExampleRecord.Builder	A builder for `TrainingExampleRecord`
TrainingExamplesInput	The input data for `IsolatedWorker#onTrainingExamples`.
TrainingExamplesOutput	The output data of `IsolatedWorker#onTrainingExamples`
TrainingExamplesOutput.Builder	A builder for `TrainingExamplesOutput`
TrainingInterval	Training interval settings required for federated computation jobs.
TrainingInterval.Builder	A builder for `TrainingInterval`
TransactionTooLargeException	The Binder transaction failed because it was too large.
TranscodingSession	An instances of this class represents a session of media Transcoding.
TransferQueue<E>	A `BlockingQueue` in which producers may wait for consumers to receive elements.
Transformation	Helper class used to change a child view of a `presentation template` at runtime, using the values of fields contained in the screen.
Transformation	Defines the transformation to be applied at one point in time of an Animation.
TransformationMethod	TextView uses TransformationMethods to do things like replacing the characters of passwords with dots, or keeping the newline characters from causing line breaks in single-line text fields.
Transformer	An instance of this abstract class can transform a source tree into a result tree.
TransformerConfigurationException	Indicates a serious configuration error.
TransformerException	This class specifies an exceptional condition that occurred during the transformation process.
TransformerFactory	A TransformerFactory instance can be used to create `Transformer` and `Templates` objects.
TransformerFactoryConfigurationError	Thrown when a problem with configuration with the Transformer Factories exists.
TransformerHandler	A TransformerHandler listens for SAX ContentHandler parse events and transforms them to a Result.
Transition	A Transition holds information about animations that will be run on its targets during a scene change.
Transition.EpicenterCallback	Class to get the epicenter of Transition.
Transition.TransitionListener	A transition listener receives notifications from a transition.
TransitionDrawable	An extension of LayerDrawables that is intended to cross-fade between the first and second layer.
TransitionInflater	This class inflates scenes and transitions from resource files.
TransitionListenerAdapter	This adapter class provides empty implementations of the methods from `Transition.TransitionListener`.
TransitionManager	This class manages the set of transitions that fire when there is a change of `Scene`.
TransitionPropagation	Extend `TransitionPropagation` to customize start delays for Animators created in `Transition.createAnimator(ViewGroup, TransitionValues, TransitionValues)`.
TransitionSet	A TransitionSet is a parent of child transitions (including other TransitionSets).
TransitionValues	Data structure which holds cached values for the transition.
TranslateAnimation	An animation that controls the position of an object.
TranslationCapability	Capability class holding information for a pair of `TranslationSpec`s.
TranslationContext	Info class holding information for `Translator`s and used by `TranslationManager#createOnDeviceTranslator(TranslationContext, Executor, Consumer)`.
TranslationContext.Builder	A builder for `TranslationContext`
TranslationManager	The `TranslationManager` class provides ways for apps to integrate and use the translation framework.
TranslationRequest	Translation request sent to the translation service by the `Translator` which contains the text to be translated.
TranslationRequest.Builder	A builder for `TranslationRequest`
TranslationRequestValue	A value to be translated via `Translator`.
TranslationResponse	Response from the translation service, which contains the translated result.
TranslationResponse.Builder	A builder for `TranslationResponse`
TranslationResponseValue	A translated response value from translation service.
TranslationResponseValue.Builder	A builder for `TranslationResponseValue`
TranslationSpec	Specs and additional info for the translation data.
Translator	The `Translator` for translation, defined by a `TranslationContext`.
Transliterator	`Transliterator` is an abstract class that transliterates text from one format to another.
Transliterator.Position	Position structure for incremental transliteration.
TransportBlock	Wrapper for Transport Discovery Data Transport Blocks.
TransportDiscoveryData	Wrapper for Transport Discovery Data AD Type.
TransportInfo	A container for transport-specific capabilities which is returned by `NetworkCapabilities#getTransportInfo()`.
TransportModeChildSessionParams	TransportModeChildSessionParams represents proposed configurations for negotiating a transport mode Child Session.
TransportModeChildSessionParams.Builder	This class can be used to incrementally construct a `TransportModeChildSessionParams`.
TreeMap<K, V>	A Red-Black tree based `NavigableMap` implementation.
TreeSet<E>	A `NavigableSet` implementation based on a `TreeMap`.
TriggerEvent	This class represents a Trigger Event - the event associated with a Trigger Sensor.
TriggerEventListener	This class is the listener used to handle Trigger Sensors.
TrustAnchor	A trust anchor or most-trusted Certification Authority (CA).
TrustedBiddingData	Represents data used during the ad selection process to fetch buyer bidding signals from a trusted key/value server.
TrustedBiddingData.Builder	Builder for `TrustedBiddingData` objects.
TrustedPresentationThresholds	Threshold values that are sent with `WindowManager.registerTrustedPresentationListener(IBinder, TrustedPresentationThresholds, Executor, Consumer)`
TrustManager	This is the base interface for JSSE trust managers.
TrustManagerFactory	This class acts as a factory for trust managers based on a source of trust material.
TrustManagerFactorySpi	This class defines the Service Provider Interface (SPI) for the `TrustManagerFactory` class.
TsRequest	A request for TS (transport stream) from broadcast signal.
TsResponse	A response for TS (transport stream) from broadcast signal.
TtsSpan	A span that supplies additional meta-data for the associated text intended for text-to-speech engines.
TtsSpan.Builder<C extends Builder<?>>	A simple builder for TtsSpans.
TtsSpan.CardinalBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_CARDINAL`.
TtsSpan.DateBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_DATE`.
TtsSpan.DecimalBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_DECIMAL`.
TtsSpan.DigitsBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_DIGITS`.
TtsSpan.ElectronicBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_ELECTRONIC`.
TtsSpan.FractionBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_FRACTION`.
TtsSpan.MeasureBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_MEASURE`.
TtsSpan.MoneyBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_MONEY`.
TtsSpan.OrdinalBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_ORDINAL`.
TtsSpan.SemioticClassBuilder<C extends SemioticClassBuilder<?>>	A builder for TtsSpans, has setters for morphosyntactic features.
TtsSpan.TelephoneBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_TELEPHONE`.
TtsSpan.TextBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_TEXT`.
TtsSpan.TimeBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_TIME`.
TtsSpan.VerbatimBuilder	A builder for TtsSpans of type `TtsSpan.TYPE_VERBATIM`.
TunnelModeChildSessionParams	TunnelModeChildSessionParams represents proposed configurations for negotiating a tunnel mode Child Session.
TunnelModeChildSessionParams.Builder	This class can be used to incrementally construct a `TunnelModeChildSessionParams`.
TunnelModeChildSessionParams.ConfigRequestIpv4Address	Represents an IPv4 Internal Address request
TunnelModeChildSessionParams.ConfigRequestIpv4DhcpServer	Represents an IPv4 DHCP server request
TunnelModeChildSessionParams.ConfigRequestIpv4DnsServer	Represents an IPv4 DNS Server request
TunnelModeChildSessionParams.ConfigRequestIpv4Netmask	Represents an IPv4 Netmask request
TunnelModeChildSessionParams.ConfigRequestIpv6Address	Represents an IPv6 Internal Address request
TunnelModeChildSessionParams.ConfigRequestIpv6DnsServer	Represents an IPv6 DNS Server request
TunnelModeChildSessionParams.TunnelModeChildConfigRequest	Represents a tunnel mode child session configuration request type
TvContentRating	A class representing a TV content rating.
TvContract	The contract between the TV provider and applications.
TvContract.BaseTvColumns	Common base for the tables of TV channels/programs.
TvContract.Channels	Column definitions for the TV channels table.
TvContract.Channels.Logo	A sub-directory of a single TV channel that represents its primary logo.
TvContract.PreviewPrograms	Column definitions for the preview TV programs table.
TvContract.Programs	Column definitions for the TV programs table.
TvContract.Programs.Genres	Canonical genres for TV programs.
TvContract.RecordedPrograms	Column definitions for the recorded TV programs table.
TvContract.WatchNextPrograms	Column definitions for the "watch next" TV programs table.
TvInputInfo	This class is used to specify meta information of a TV input.
TvInputInfo.Builder	A convenience builder for creating `TvInputInfo` objects.
TvInputManager	Central system API to the overall TV input framework (TIF) architecture, which arbitrates interaction between applications and the selected TV inputs.
TvInputManager.TvInputCallback	Callback used to monitor status of the TV inputs.
TvInputService	The TvInputService class represents a TV input or source such as HDMI or built-in tuner which provides pass-through video or broadcast TV programs.
TvInputService.HardwareSession	Base class for a TV input session which represents an external device connected to a hardware TV input.
TvInputService.RecordingSession	Base class for derived classes to implement to provide a TV input recording session.
TvInputService.Session	Base class for derived classes to implement to provide a TV input session.
TvInteractiveAppManager	Central system API to the overall TV interactive application framework (TIAF) architecture, which arbitrates interaction between Android applications and TV interactive apps.
TvInteractiveAppManager.TvInteractiveAppCallback	Callback used to monitor status of the TV Interactive App.
TvInteractiveAppService	A TV interactive application service is a service that provides runtime environment and runs TV interactive applications.
TvInteractiveAppService.Session	Base class for derived classes to implement to provide a TV interactive app session.
TvInteractiveAppServiceInfo	This class is used to specify meta information of a TV interactive app.
TvInteractiveAppView	Displays contents of interactive TV applications.
TvInteractiveAppView.OnUnhandledInputEventListener	Interface definition for a callback to be invoked when the unhandled input event is received.
TvInteractiveAppView.TvInteractiveAppCallback	Callback used to receive various status updates on the `TvInteractiveAppView`.
TvRecordingClient	The public interface object used to interact with a specific TV input service for TV program recording.
TvRecordingClient.RecordingCallback	Callback used to receive various status updates on the `TvInputService.RecordingSession`
TvRecordingInfo	This class is used to describe the meta information for a TV recording.
TvTrackInfo	Encapsulates the format of tracks played in `TvInputService`.
TvTrackInfo.Builder	A builder class for creating `TvTrackInfo` objects.
TvView	Displays TV contents.
TvView.OnUnhandledInputEventListener	Interface definition for a callback to be invoked when the unhandled input event is received.
TvView.TimeShiftPositionCallback	Callback used to receive time shift position changes.
TvView.TvInputCallback	Callback used to receive various status updates on the `TvView`.
TwoLineListItem	This class was deprecated in API level 17. This class can be implemented easily by apps using a `RelativeLayout` or a `LinearLayout`.
TwoStatePreference	This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.
Type	This class was deprecated in API level 31. Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.
Type	Type is the common superinterface for all types in the Java programming language.
Type.Builder	Builder class for Type.
Type.CubemapFace
TypeConverter<T, V>	Abstract base class used convert type T to another type V.
TypedArray	Container for an array of values that were retrieved with `Resources.Theme#obtainStyledAttributes(AttributeSet, int[], int, int)` or `Resources#obtainAttributes`.
TypeDescriptor	An entity that has a type descriptor.
TypeDescriptor.OfField<F extends OfField<F>>	An entity that has a field type descriptor.
TypeDescriptor.OfMethod<F extends OfField<F>, M extends OfMethod<F, M>>	An entity that has a method type descriptor Method descriptors conforming to JVMS {@jvms 4.3.3} can be described
TypedValue	Container for a dynamically typed data value.
TypeEvaluator<T>	Interface for use with the `ValueAnimator#setEvaluator(TypeEvaluator)` function.
Typeface	The Typeface class specifies the typeface and intrinsic style of a font.
Typeface.Builder	A builder class for creating new Typeface instance.
Typeface.CustomFallbackBuilder	A builder class for creating new Typeface instance.
TypefaceSpan	Span that updates the typeface of the text it's attached to.
TypeInfo	The `TypeInfo` interface represents a type referenced from `Element` or `Attr` nodes, specified in the schemas associated with the document.
TypeInfoProvider	This class provides access to the type information determined by `ValidatorHandler`.
TypeNotPresentException	Thrown when an application tries to access a type using a string representing the type's name, but no definition for the type with the specified name can be found.
Types	The class that defines the constants that are used to identify generic SQL types, called JDBC types.
TypeVariable<D extends GenericDeclaration>	TypeVariable is the common superinterface for type variables of kinds.

U

UCharacter	[icu enhancement] ICU's replacement for `Character`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
UCharacter.BidiPairedBracketType	Bidi Paired Bracket Type constants.
UCharacter.DecompositionType	Decomposition Type constants.
UCharacter.EastAsianWidth	East Asian Width constants.
UCharacter.GraphemeClusterBreak	Grapheme Cluster Break constants.
UCharacter.HangulSyllableType	Hangul Syllable Type constants.
UCharacter.IndicPositionalCategory	Indic Positional Category constants.
UCharacter.IndicSyllabicCategory	Indic Syllabic Category constants.
UCharacter.JoiningGroup	Joining Group constants.
UCharacter.JoiningType	Joining Type constants.
UCharacter.LineBreak	Line Break constants.
UCharacter.NumericType	Numeric Type constants.
UCharacter.SentenceBreak	Sentence Break constants.
UCharacter.UnicodeBlock	[icu enhancement] ICU's replacement for `Character.UnicodeBlock`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
UCharacter.VerticalOrientation	Vertical Orientation constants.
UCharacter.WordBreak	Word Break constants.
UCharacterCategory	Enumerated Unicode category types from the UnicodeData.txt file.
UCharacterDirection	Enumerated Unicode character linguistic direction constants.
UCharacterEnums	A container for the different 'enumerated types' used by UCharacter.
UCharacterEnums.ECharacterCategory	'Enum' for the CharacterCategory constants.
UCharacterEnums.ECharacterDirection	'Enum' for the CharacterDirection constants.
UCharacterIterator	Abstract class that defines an API for iteration on text objects.This is an interface for forward and backward iteration and random access into a text object.
UFormat	An abstract class that extends `Format` to provide additional ICU protocol, specifically, the `getLocale()` API.
UiAutomation	Class for interacting with the device's UI by simulation user actions and introspection of the screen content.
UiAutomation.AccessibilityEventFilter	Listener for filtering accessibility events.
UiAutomation.OnAccessibilityEventListener	Listener for observing the `AccessibilityEvent` stream.
UiccCardInfo	The UiccCardInfo represents information about a currently inserted UICC or embedded eUICC.
UiccPortInfo	UiccPortInfo class represents information about a single port contained on `UiccCardInfo`.
UidHealthStats	Keys for `HealthStats` returned from `SystemHealthManager.takeUidSnapshot(int)`, `SystemHealthManager.takeMyUidSnapshot()`, and `SystemHealthManager.takeUidSnapshots(int[])`.
UiModeManager	This class provides access to the system uimode services.
UiModeManager.ContrastChangeListener	Listener for the UI contrast.
UiThreadTest	This @interface was deprecated in API level 24. Use UiThreadTest instead. New tests should be written using the Android Testing Support Library.
UiTranslationManager	The `UiTranslationManager` class provides ways for apps to use the ui translation function in framework.
UiTranslationStateCallback	Callback for listening to UI Translation state changes.
ULocale	[icu enhancement] ICU's replacement for `Locale`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
ULocale.AvailableType	Types for `ULocale#getAvailableLocalesByType`
ULocale.Builder	`Builder` is used to build instances of `ULocale` from values configured by the setters.
ULocale.Category	Enum for locale categories.
UnaryOperator<T>	Represents an operation on a single operand that produces a result of the same type as its operand.
UnbufferedIoViolation	See #`Builder#detectUnbufferedIo()`
UncheckedIOException	Wraps an `IOException` with an unchecked exception.
UndeclaredThrowableException	Thrown by a method invocation on a proxy instance if its invocation handler's `invoke` method throws a checked exception (a `Throwable` that is not assignable to `RuntimeException` or `Error`) that is not assignable to any of the exception types declared in the `throws` clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.
UnderlineSpan	A span that underlines the text it's attached to.
UnicodeFilter	`UnicodeFilter` defines a protocol for selecting a subset of the full range (U+0000 to U+FFFF) of Unicode characters.
UnicodeMatcher	`UnicodeMatcher` defines a protocol for objects that can match a range of characters in a Replaceable string.
UnicodeSet	A mutable set of Unicode characters and multicharacter strings.
UnicodeSet.ComparisonStyle	Comparison style enums used by `UnicodeSet#compareTo(UnicodeSet, ComparisonStyle)`.
UnicodeSet.EntryRange	A struct-like class used for iteration through ranges, for faster iteration than by String.
UnicodeSet.SpanCondition	Argument values for whether span() and similar functions continue while the current character is contained vs.
UnicodeSetIterator	UnicodeSetIterator iterates over the contents of a UnicodeSet.
UnicodeSetSpanner	A helper class used to count, replace, and trim CharSequences based on UnicodeSet matches.
UnicodeSetSpanner.CountMethod	Options for replaceFrom and countIn to control how to treat each matched span.
UnicodeSetSpanner.TrimOption	Options for the trim() method
UnitTestSuiteBuilder	This class is deprecated. android.test.runner is obsolete
UniversalTimeScale	There are quite a few different conventions for binary datetime, depending on different platforms and protocols.
UnknownAuthenticationKeyException	Thrown if trying to certify an unknown dynamic authentication key.
UnknownError	Thrown when an unknown but serious exception has occurred in the Java Virtual Machine.
UnknownFormatConversionException	Unchecked exception thrown when an unknown conversion is given.
UnknownFormatFlagsException	Unchecked exception thrown when an unknown flag is given.
UnknownHostException	Thrown to indicate that the IP address of a host could not be determined.
UnknownServiceException	Thrown to indicate that an unknown service exception has occurred.
UnlocalizedNumberFormatter	A NumberFormatter that does not yet have a locale.
UnlocalizedNumberRangeFormatter	A NumberRangeFormatter that does not yet have a locale.
UnmappableCharacterException	Checked exception thrown when an input character (or byte) sequence is valid but cannot be mapped to an output byte (or character) sequence.
UnrecoverableEntryException	This exception is thrown if an entry in the keystore cannot be recovered.
UnrecoverableKeyException	This exception is thrown if a key in the keystore cannot be recovered.
UnregisterCredentialDescriptionRequest	A request to unregister a `ComponentName` that contains an actively provisioned `Credential` represented by a `CredentialDescription`.
UnresolvedAddressException	Unchecked exception thrown when an attempt is made to invoke a network operation upon an unresolved socket address.
UnresolvedPermission	Legacy security code; do not use.
UnsafeIntentLaunchViolation	Violation raised when your app launches an `Intent` which originated from outside your app.
UnsafeStateException	Exception thrown when a `DevicePolicyManager` operation failed because it was not safe to be executed at that moment.
UnsatisfiedLinkError	Thrown if the Java Virtual Machine cannot find an appropriate native-language definition of a method declared `native`.
UnsupportedAddressTypeException	Unchecked exception thrown when an attempt is made to bind or connect to a socket address of a type that is not supported.
UnsupportedCallbackException	Signals that a `CallbackHandler` does not recognize a particular `Callback`.
UnsupportedCharsetException	Unchecked exception thrown when no support is available for a requested charset.
UnsupportedClassVersionError	Thrown when the Java Virtual Machine attempts to read a class file and determines that the major and minor version numbers in the file are not supported.
UnsupportedEncodingException	The Character Encoding is not supported.
UnsupportedOperationException	Thrown to indicate that the requested operation is not supported.
UnsupportedSchemeException	Exception thrown when an attempt is made to construct a MediaDrm object using a crypto scheme UUID that is not supported by the device
UnsupportedTemporalTypeException	UnsupportedTemporalTypeException indicates that a ChronoField or ChronoUnit is not supported for a Temporal class.
UntaggedSocketViolation
UpdateAdCounterHistogramRequest	Request object wrapping the required arguments needed to update an ad counter histogram.
UpdateAdCounterHistogramRequest.Builder	Builder for `UpdateAdCounterHistogramRequest` objects.
UpdateAppearance	The classes that affect character-level text in a way that modifies their appearance when one is added or removed must implement this interface.
UpdateLayout	The classes that affect character-level text formatting in a way that triggers a text layout update when one is added or removed must implement this interface.
UpdateSignalsRequest	The request object for updateSignals.
UpdateSignalsRequest.Builder	Builder for `UpdateSignalsRequest` objects.
UploadDataProvider	Abstract class allowing the embedder to provide an upload body to `UrlRequest`.
UploadDataSink	Defines callbacks methods for `UploadDataProvider`.
UProperty	Selection constants for Unicode properties.
UProperty.NameChoice	Selector constants for UCharacter.getPropertyName() and UCharacter.getPropertyValueName().
Uri	Immutable URI reference.
URI	Represents a Uniform Resource Identifier (URI) reference.
Uri.Builder	Helper class for building or manipulating URI references.
URICertStoreParameters	Parameters used as input for `CertStore` algorithms which use information contained in a URI to retrieve certificates and CRLs.
UriMatcher	Utility class to aid in matching URIs in content providers.
UriPermission	Description of a single Uri permission grant.
UriRelativeFilter	A filter for matching Intent URI Data as part of a `UriRelativeFilterGroup`.
UriRelativeFilterGroup	An intent data matching group based on a URI's relative reference which includes the path, query and fragment.
URIResolver	An object that implements this interface that can be called by the processor to turn a URI used in document(), xsl:import, or xsl:include into a Source object.
URISyntaxException	Checked exception thrown to indicate that a string could not be parsed as a URI reference.
URL	Class `URL` represents a Uniform Resource Locator, a pointer to a "resource" on the World Wide Web.
URLClassLoader	This class loader is used to load classes and resources from a search path of URLs referring to both JAR files and directories.
URLConnection	The abstract class `URLConnection` is the superclass of all classes that represent a communications link between the application and a URL.
URLDecoder	Utility class for HTML form decoding.
URLEncoder	Utility class for HTML form encoding.
UrlQuerySanitizer	Sanitizes the Query portion of a URL.
UrlQuerySanitizer.IllegalCharacterValueSanitizer	Sanitize values based on which characters they contain.
UrlQuerySanitizer.ParameterValuePair	A simple tuple that holds parameter-value pairs.
UrlQuerySanitizer.ValueSanitizer	A functor used to sanitize a single query value.
UrlRequest	Controls an HTTP request (GET, PUT, POST etc).
UrlRequest.Builder	Builder for `UrlRequest`s.
UrlRequest.Callback	Users of the HTTP stack extend this class to receive callbacks indicating the progress of a `UrlRequest` being processed.
UrlRequest.Status	Request status values returned by `UrlRequest.getStatus(StatusListener)`.
UrlRequest.StatusListener	Listener interface used with `UrlRequest.getStatus(StatusListener)` to receive the status of a `UrlRequest`.
UrlResponseInfo	Basic information about a response.
URLSpan	Implementation of the `ClickableSpan` that allows setting a url string.
URLStreamHandler	The abstract class `URLStreamHandler` is the common superclass for all stream protocol handlers.
URLStreamHandlerFactory	This interface defines a factory for `URL` stream protocol handlers.
URLUtil
UrspRule	Represents a single URSP rule as defined in 3GPP TS 24.526.
UsageEvents	A result returned from `UsageStatsManager.queryEvents(long, long)` from which to read `UsageEvents.Event` objects.
UsageEvents.Event	An event representing a state change for a component.
UsageEventsQuery	An Object-Oriented representation for a `UsageEvents` query.
UsageEventsQuery.Builder	Builder for UsageEventsQuery.
UsageStats	Contains usage statistics for an app package for a specific time range.
UsageStatsManager	Provides access to device usage history and statistics.
UsbAccessory	A class representing a USB accessory, which is an external hardware component that communicates with an android application over USB.
UsbConfiguration	A class representing a configuration on a `UsbDevice`.
UsbConstants	Contains constants for the USB protocol.
UsbDevice	This class represents a USB device attached to the android device with the android device acting as the USB host.
UsbDeviceConnection	This class is used for sending and receiving data and control messages to a USB device.
UsbEndpoint	A class representing an endpoint on a `UsbInterface`.
UsbInterface	A class representing an interface on a `UsbDevice`.
UsbManager	This class allows you to access the state of USB and communicate with USB devices.
UsbRequest	A class representing USB request packet.
UScript	Constants for ISO 15924 script codes, and related functions.
UScript.ScriptUsage	Script usage constants.
UserData	User data provided by the platform to an `IsolatedService`.
UserData	Defines the user data used for field classification.
UserData.Builder	A builder for `UserData` objects.
UserDataHandler	When associating an object to a key on a node using `Node.setUserData()` the application can provide a handler that gets called when the node the object is associated to is being cloned, imported, or renamed.
UserDefinedFileAttributeView	A file attribute view that provides a view of a file's user-defined attributes, sometimes known as extended attributes.
UserDictionary	A provider of user defined words for input methods to use for predictive text input.
UserDictionary.Words	Contains the user defined words.
UserHandle	Representation of a user on the device.
UserManager	Manages users and user details on a multi-user system.
UserManager.UserOperationException	Thrown to indicate user operation failed.
UserNotAuthenticatedException	Indicates that a cryptographic operation could not be performed because the user has not been authenticated recently enough.
UserPresenceUnavailableException	Indicates the condition that a proof of user-presence was requested but this proof was not presented.
UserPrincipal	A `Principal` representing an identity used to determine access rights to objects in a file system.
UserPrincipalLookupService	An object to lookup user and group principals by name.
UserPrincipalNotFoundException	Checked exception thrown when a lookup of `UserPrincipal` fails because the principal does not exist.
UTFDataFormatException	Signals that a malformed string in modified UTF-8 format has been read in a data input stream or by any class that implements the data input interface.
UtteranceProgressListener	Listener for events relating to the progress of an utterance through the synthesis queue.
UUID	A class that represents an immutable universally unique identifier (UUID).

V

Validator	Class used to define whether a condition is satisfied.
Validator	A processor that checks an XML document against `Schema`.
ValidatorHandler	Streaming validator that works on SAX stream.
Validators	Factory for `Validator` operations.
ValueAnimator	This class provides a simple timing engine for running animations which calculate animated values and set them on target objects.
ValueAnimator.AnimatorUpdateListener	Implementors of this interface can add themselves as update listeners to an `ValueAnimator` instance to receive callbacks on every animation frame, after the current frame's values have been calculated for that `ValueAnimator`.
ValueAnimator.DurationScaleChangeListener	Listener interface for the system-wide scaling factor for Animator-based animations.
ValueCallback<T>	A callback interface used to provide values asynchronously.
ValueIterator	Interface for enabling iteration over sets of <int, Object>, where int is the sorted integer index in ascending order, and Object its associated value.
ValueIterator.Element	The return result container of each iteration.
ValueRange	The range of valid values for a date-time field.
VarHandle	A VarHandle is a dynamically strongly typed reference to a variable, or to a parametrically-defined family of variables, including static fields, non-static fields, array elements, or components of an off-heap data structure.
VarHandle.AccessMode	The set of access modes that specify how a variable, referenced by a VarHandle, is accessed.
VcnCellUnderlyingNetworkTemplate	This class represents a configuration for a network template class of underlying cellular networks.
VcnCellUnderlyingNetworkTemplate.Builder	This class is used to incrementally build VcnCellUnderlyingNetworkTemplate objects.
VcnConfig	This class represents a configuration for a Virtual Carrier Network.
VcnConfig.Builder	This class is used to incrementally build `VcnConfig` objects.
VcnGatewayConnectionConfig	This class represents a configuration for a connection to a Virtual Carrier Network gateway.
VcnGatewayConnectionConfig.Builder	This class is used to incrementally build `VcnGatewayConnectionConfig` objects.
VcnManager	VcnManager publishes APIs for applications to configure and manage Virtual Carrier Networks.
VcnManager.VcnStatusCallback	VcnStatusCallback is the interface for Carrier apps to receive updates for their VCNs.
VcnUnderlyingNetworkTemplate	This class represents a template containing set of underlying network requirements for doing route selection.
VcnWifiUnderlyingNetworkTemplate	This class represents a configuration for a network template class of underlying Carrier WiFi networks.
VcnWifiUnderlyingNetworkTemplate.Builder	This class is used to incrementally build VcnWifiUnderlyingNetworkTemplate objects.
Vector<E>	The `Vector` class implements a growable array of objects.
VectorDrawable	This lets you create a drawable based on an XML vector graphic.
Velocity	Represents a unit of speed.
VelocityTracker	Helper for tracking the velocity of motion events, for implementing flinging and other such gestures.
VerifiedDisplayHash	The verified display hash used to validate information about what was present on screen.
VerifiedInputEvent	Base class for verified events.
VerifiedKeyEvent	KeyEvent that has been verified by the system.
VerifiedMotionEvent	MotionEvent that has been verified by the system.
VerifyError	Thrown when the "verifier" detects that a class file, though well formed, contains some sort of internal inconsistency or security problem.
VersionedPackage	Encapsulates a package and its version code.
VersionInfo	Class to store version numbers of the form major.minor.milli.micro.
VibrationAttributes	Encapsulates a collection of attributes describing information about a vibration.
VibrationAttributes.Builder	Builder class for `VibrationAttributes` objects.
VibrationEffect	A VibrationEffect describes a haptic effect to be performed by a `Vibrator`.
VibrationEffect.Composition	A composition of haptic elements that are combined to be playable as a single `VibrationEffect`.
Vibrator	Class that operates the vibrator on the device.
VibratorManager	Provides access to all vibrators from the device, as well as the ability to run them in a synchronized fashion.
VideoProfile	Represents attributes of video calls.
VideoProfile.CameraCapabilities	Represents the camera capabilities important to a Video Telephony provider.
VideoView	Displays a video file.
View	This class represents the basic building block for user interface components.
View.AccessibilityDelegate	This class represents a delegate that can be registered in a `View` to enhance accessibility support via composition rather via inheritance.
View.BaseSavedState	Base class for derived classes that want to save and restore their own state in `View.onSaveInstanceState()`.
View.DragShadowBuilder	Creates an image that the system displays during the drag and drop operation.
View.MeasureSpec	A MeasureSpec encapsulates the layout requirements passed from parent to child.
View.OnApplyWindowInsetsListener	Listener for applying window insets on a view in a custom way.
View.OnAttachStateChangeListener	Interface definition for a callback to be invoked when this view is attached or detached from its window.
View.OnCapturedPointerListener	Interface definition for a callback to be invoked when a captured pointer event is being dispatched this view.
View.OnClickListener	Interface definition for a callback to be invoked when a view is clicked.
View.OnContextClickListener	Interface definition for a callback to be invoked when a view is context clicked.
View.OnCreateContextMenuListener	Interface definition for a callback to be invoked when the context menu for this view is being built.
View.OnDragListener	Interface definition for a listener that's invoked when a drag event is dispatched to this view.
View.OnFocusChangeListener	Interface definition for a callback to be invoked when the focus state of a view changed.
View.OnGenericMotionListener	Interface definition for a callback to be invoked when a generic motion event is dispatched to this view.
View.OnHoverListener	Interface definition for a callback to be invoked when a hover event is dispatched to this view.
View.OnKeyListener	Interface definition for a callback to be invoked when a hardware key event is dispatched to this view.
View.OnLayoutChangeListener	Interface definition for a callback to be invoked when the layout bounds of a view changes due to layout processing.
View.OnLongClickListener	Interface definition for a callback to be invoked when a view has been clicked and held.
View.OnScrollChangeListener	Interface definition for a callback to be invoked when the scroll X or Y positions of a view change.
View.OnSystemUiVisibilityChangeListener	This interface was deprecated in API level 30. Use `WindowInsets#isVisible(int)` to find out about system bar visibilities by setting a `OnApplyWindowInsetsListener` on this view.
View.OnTouchListener	Interface definition for a callback to be invoked when a touch event is dispatched to this view.
View.OnUnhandledKeyEventListener	Interface definition for a callback to be invoked when a hardware key event hasn't been handled by the view hierarchy.
ViewAnimationUtils	Defines common utilities for working with View's animations.
ViewAnimator	Base class for a `FrameLayout` container that will perform animations when switching between its views.
ViewAsserts	This class was deprecated in API level 24. Use Espresso View Matchers instead. New test should be written using the Android Testing Support Library. For more information about UI testing, take the Espresso UI testing training.
ViewConfiguration	Contains methods to standard constants used in the UI for timeouts, sizes, and distances.
ViewDebug	Various debugging/tracing tools related to `View` and the view hierarchy.
ViewDebug.CapturedViewProperty	This annotation can be used to mark fields and methods to be dumped when the view is captured.
ViewDebug.ExportedProperty	This annotation can be used to mark fields and methods to be dumped by the view server.
ViewDebug.FlagToString	Defines a mapping from a flag to a String.
ViewDebug.HierarchyTraceType	This enum was deprecated in API level 16. This enum is now unused
ViewDebug.IntToString	Defines a mapping from an int value to a String.
ViewDebug.RecyclerTraceType	This enum was deprecated in API level 16. This enum is now unused
ViewFlipper	Simple `ViewAnimator` that will animate between two or more views that have been added to it.
ViewGroup	A `ViewGroup` is a special view that can contain other views (called children.) The view group is the base class for layouts and views containers.
ViewGroup.LayoutParams	LayoutParams are used by views to tell their parents how they want to be laid out.
ViewGroup.MarginLayoutParams	Per-child layout information for layouts that support margins.
ViewGroup.OnHierarchyChangeListener	Interface definition for a callback to be invoked when the hierarchy within this view changed.
ViewGroupOverlay	A group overlay is an extra layer that sits on top of a ViewGroup (the "host view") which is drawn after all other content in that view (including the view group's children).
ViewManager	Interface to let you add and remove child views to an Activity.
ViewOutlineProvider	Interface by which a View builds its `Outline`, used for shadow casting and clipping.
ViewOverlay	An overlay is an extra layer that sits on top of a View (the "host view") which is drawn after all other content in that view (including children, if the view is a ViewGroup).
ViewParent	Defines the responsibilities for a class that will be a parent of a View.
ViewPropertyAnimator	This class enables automatic and optimized animation of select properties on View objects.
ViewStructure	`ViewStructure` is a container for storing additional per-view data generated by `View.onProvideStructure` and `View.onProvideAutofillStructure`.
ViewStructure.HtmlInfo	Simplified representation of the HTML properties of a node that represents an HTML element.
ViewStructure.HtmlInfo.Builder	Builder for `HtmlInfo` objects.
ViewStub	A ViewStub is an invisible, zero-sized View that can be used to lazily inflate layout resources at runtime.
ViewStub.OnInflateListener	Listener used to receive a notification after a ViewStub has successfully inflated its layout resource.
ViewSwitcher	`ViewAnimator` that switches between two views, and has a factory from which these views are created.
ViewSwitcher.ViewFactory	Creates views in a ViewSwitcher.
ViewTranslationCallback	Callback for handling the translated information show or hide in the `View`.
ViewTranslationRequest	Wrapper class representing a translation request associated with a `View` to be used by translation service.
ViewTranslationRequest.Builder	A builder for building ViewTranslationRequest.
ViewTranslationResponse	Wrapper class representing a translation response associated with a `View` to be used by translation service.
ViewTranslationResponse.Builder	A builder for `ViewTranslationResponse`
ViewTreeObserver	A view tree observer is used to register listeners that can be notified of global changes in the view tree.
ViewTreeObserver.OnDrawListener	Interface definition for a callback to be invoked when the view tree is about to be drawn.
ViewTreeObserver.OnGlobalFocusChangeListener	Interface definition for a callback to be invoked when the focus state within the view tree changes.
ViewTreeObserver.OnGlobalLayoutListener	Interface definition for a callback to be invoked when the global layout state or the visibility of views within the view tree changes.
ViewTreeObserver.OnPreDrawListener	Interface definition for a callback to be invoked when the view tree is about to be drawn.
ViewTreeObserver.OnScrollChangedListener	Interface definition for a callback to be invoked when something in the view tree has been scrolled.
ViewTreeObserver.OnTouchModeChangeListener	Interface definition for a callback to be invoked when the touch mode changes.
ViewTreeObserver.OnWindowAttachListener	Interface definition for a callback to be invoked when the view hierarchy is attached to and detached from its window.
ViewTreeObserver.OnWindowFocusChangeListener	Interface definition for a callback to be invoked when the view hierarchy's window focus state changes.
ViewTreeObserver.OnWindowVisibilityChangeListener	Interface definition for a callback to be invoked when the view hierarchy's window visibility changes.
Violation	Root class for all StrictMode violations.
VirtualDevice	Details of a particular virtual device.
VirtualDeviceManager	System level service for creation and management of virtual devices.
VirtualDeviceManager.VirtualDeviceListener	Listener for changes in the available virtual devices.
VirtualDisplay	Represents a virtual display.
VirtualDisplay.Callback	Interface for receiving information about a `VirtualDisplay`'s state changes.
VirtualDisplayConfig	Holds configuration used to create `VirtualDisplay` instances.
VirtualDisplayConfig.Builder	A builder for `VirtualDisplayConfig`.
Virtualizer	This class was deprecated in API level 35. use the `Spatializer` class to query the capabilities of the platform with regards to spatialization, a different name for audio channel virtualization, and the `AudioAttributes.Builder.setSpatializationBehavior(int)` to characterize how you want your content to be played when spatialization is supported.
Virtualizer.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the Virtualizer when a parameter value has changed.
Virtualizer.Settings	The Settings class regroups all virtualizer parameters.
VirtualMachineError	Thrown to indicate that the Java Virtual Machine is broken or has run out of resources necessary for it to continue operating.
VirtualViewFillInfo	Information for the virtual view to the autofill framework.
VirtualViewFillInfo.Builder	A builder for `VirtualViewFillInfo`
Visibility	A collection of utility methods for computing the visibility of triangle meshes.
Visibility	This transition tracks changes to the visibility of target views in the start and end scenes.
VisibilityPropagation	Base class for `TransitionPropagation`s that care about View Visibility and the center position of the View.
VisibilitySetterAction	Action used to change the visibility of other child view in a `CustomDescription` `presentation template`.
VisibilitySetterAction.Builder	Builder for `VisibilitySetterAction` objects.
VisibleActivityInfo	The class is used to represent a visible activity information.
Visualizer	The Visualizer class enables application to retrieve part of the currently playing audio for visualization purpose.
Visualizer.MeasurementPeakRms	A class to store peak and RMS values.
Visualizer.OnDataCaptureListener	The OnDataCaptureListener interface defines methods called by the Visualizer to periodically update the audio visualization capture.
VisualVoicemailService	This service is implemented by dialer apps that wishes to handle OMTP or similar visual voicemails.
VisualVoicemailService.VisualVoicemailTask	Represents a visual voicemail event which needs to be handled.
VisualVoicemailSms	Represents the content of a visual voicemail SMS.
VisualVoicemailSmsFilterSettings	Class to represent various settings for the visual voicemail SMS filter.
VisualVoicemailSmsFilterSettings.Builder	Builder class for `VisualVoicemailSmsFilterSettings` objects.
VmSocketAddress	A virtio-vsock address `VmSocketAddress`.
Vo2MaxRecord	Capture user's VO2 max score and optionally the measurement method.
Vo2MaxRecord.Builder	Builder class for `Vo2MaxRecord`
Vo2MaxRecord.Vo2MaxMeasurementMethod	Identifier for V02 max measurement method
Voice	Characteristics and features of a Text-To-Speech Voice.
VoiceInteractionService	Top-level service of the current global voice interactor, which is providing support for hotwording, the back-end of a `VoiceInteractor`, etc.
VoiceInteractionSession	An active voice interaction session, providing a facility for the implementation to interact with the user in the voice interaction layer.
VoiceInteractionSession.AbortVoiceRequest	A request to report that the current user interaction can not be completed with voice, as per `VoiceInteractor.AbortVoiceRequest`.
VoiceInteractionSession.ActivityId	Represents the id of an assist source activity.
VoiceInteractionSession.AssistState	Represents assist state captured when this session was started.
VoiceInteractionSession.CommandRequest	A generic vendor-specific request, as per `VoiceInteractor.CommandRequest`.
VoiceInteractionSession.CompleteVoiceRequest	A request to simply inform the user that the voice operation has completed, as per `VoiceInteractor.CompleteVoiceRequest`.
VoiceInteractionSession.ConfirmationRequest	A request for confirmation from the user of an operation, as per `VoiceInteractor.ConfirmationRequest`.
VoiceInteractionSession.Insets	Information about where interesting parts of the input method UI appear.
VoiceInteractionSession.PickOptionRequest	A request for the user to pick from a set of option, as per `VoiceInteractor.PickOptionRequest`.
VoiceInteractionSession.Request	Base class representing a request from a voice-driver app to perform a particular voice operation with the user.
VoiceInteractionSession.VisibleActivityCallback	Callback interface for receiving visible activity changes used for assistant usage.
VoiceInteractionSessionService	An active voice interaction session, initiated by a `VoiceInteractionService`.
VoiceInteractor	Interface for an `Activity` to interact with the user through voice.
VoiceInteractor.AbortVoiceRequest	Reports that the current interaction can not be complete with voice, so the application will need to switch to a traditional input UI.
VoiceInteractor.CommandRequest	Execute a vendor-specific command using the trusted system VoiceInteractionService.
VoiceInteractor.CompleteVoiceRequest	Reports that the current interaction was successfully completed with voice, so the application can report the final status to the user.
VoiceInteractor.ConfirmationRequest	Confirms an operation with the user via the trusted system VoiceInteractionService.
VoiceInteractor.PickOptionRequest	Select a single option from multiple potential options with the user via the trusted system VoiceInteractionService.
VoiceInteractor.PickOptionRequest.Option	Represents a single option that the user may select using their voice.
VoiceInteractor.Prompt	A set of voice prompts to use with the voice interaction system to confirm an action, select an option, or do similar operations.
VoiceInteractor.Request	Base class for voice interaction requests that can be submitted to the interactor.
VoicemailContract	The contract between the voicemail provider and applications.
VoicemailContract.Status	Defines fields exposed through the /status path of this content provider.
VoicemailContract.Voicemails	Defines fields exposed through the /voicemail path of this content provider.
Void	The `Void` class is an uninstantiable placeholder class to hold a reference to the `Class` object representing the Java keyword void.
VolatileCallSite	A `VolatileCallSite` is a `CallSite` whose target acts like a volatile variable.
Volume	Represents a unit of volume.
VolumeAutomation	`VolumeAutomation` defines an interface for automatic volume control of `AudioTrack` and `MediaPlayer` objects.
VolumeProvider	Handles requests to adjust or set the volume on a session.
VolumeShaper	The `VolumeShaper` class is used to automatically control audio volume during media playback, allowing simple implementation of transition effects and ducking.
VolumeShaper.Configuration	The `VolumeShaper.Configuration` class contains curve and duration information.
VolumeShaper.Configuration.Builder	Builder class for a `VolumeShaper.Configuration` object.
VolumeShaper.Operation	The `VolumeShaper.Operation` class is used to specify operations to the `VolumeShaper` that affect the volume change.
VpnManager	This class provides an interface for apps to manage platform VPN profiles Apps can use this API to provide profiles with which the platform can set up a VPN without further app intermediation.
VpnProfileState	Describe the state of VPN.
VpnService	VpnService is a base class for applications to extend and build their own VPN solutions.
VpnService.Builder	Helper class to create a VPN interface.
VrListenerService	A service that is bound from the system while running in virtual reality (VR) mode.

W

WalletCard	A `WalletCard` can represent anything that a user might carry in their wallet -- a credit card, library card, transit pass, etc.
WalletCard.Builder	Builder for `WalletCard` objects.
WalletServiceEvent	Represents a request from the `wallet app` to the Quick Access Wallet in System UI.
WallpaperColors	Provides information about the colors of a wallpaper.
WallpaperInfo	This class is used to specify meta information of a wallpaper service.
WallpaperManager	Provides access to the system wallpaper.
WallpaperManager.OnColorsChangedListener	Interface definition for a callback to be invoked when colors change on a wallpaper.
WallpaperService	A wallpaper service is responsible for showing a live wallpaper behind applications that would like to sit on top of it.
WallpaperService.Engine	The actual implementation of a wallpaper.
Watchable	An object that may be registered with a watch service so that it can be watched for changes and events.
WatchEvent<T>	An event or a repeated event for an object that is registered with a `WatchService`.
WatchEvent.Kind<T>	An event kind, for the purposes of identification.
WatchEvent.Modifier	An event modifier that qualifies how a `Watchable` is registered with a `WatchService`.
WatchKey	A token representing the registration of a `watchable` object with a `WatchService`.
WatchService	A watch service that watches registered objects for changes and events.
WeakHashMap<K, V>	Hash table based implementation of the `Map` interface, with weak keys.
WeakReference<T>	Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed.
WebBackForwardList	This class contains the back/forward list for a WebView.
WebChromeClient
WebChromeClient.CustomViewCallback	A callback interface used by the host application to notify the current page that its custom view has been dismissed.
WebChromeClient.FileChooserParams	Parameters used in the `WebChromeClient.onShowFileChooser(WebView, ValueCallback, FileChooserParams)` method.
WebHistoryItem	A convenience class for accessing fields in an entry in the back/forward list of a WebView.
WebIconDatabase	This class was deprecated in API level 18. This class is only required when running on devices up to `Build.VERSION_CODES.JELLY_BEAN_MR2`
WebIconDatabase.IconListener	This interface was deprecated in API level 18. This interface is obsolete.
WebMessage	The Java representation of the HTML5 PostMessage event.
WebMessagePort	The Java representation of the HTML5 message ports.
WebMessagePort.WebMessageCallback	The listener for handling MessagePort events.
WebResourceError	Encapsulates information about errors that occurred during loading of web resources.
WebResourceRequest	Encompasses parameters to the `WebViewClient#shouldInterceptRequest` method.
WebResourceResponse	Encapsulates a resource response.
WebSettings	Manages settings state for a WebView.
WebSettings.LayoutAlgorithm	Enum for controlling the layout of html.
WebSettings.PluginState	The plugin state effects how plugins are treated on a page.
WebSettings.RenderPriority
WebSettings.TextSize	This enum was deprecated in API level 15. Use `WebSettings#setTextZoom(int)` and `WebSettings#getTextZoom()` instead.
WebSettings.ZoomDensity	Enum for specifying the WebView's desired density.
WebSourceParams	Class holding source registration parameters.
WebSourceParams.Builder	A builder for `WebSourceParams`.
WebSourceRegistrationRequest	Class to hold input to measurement source registration calls from web context.
WebSourceRegistrationRequest.Builder	Builder for `WebSourceRegistrationRequest`.
WebStorage	This class is used to manage the JavaScript storage APIs provided by the `WebView`.
WebStorage.Origin	This class encapsulates information about the amount of storage currently used by an origin for the JavaScript storage APIs.
WebStorage.QuotaUpdater	This interface was deprecated in API level 19. This class is obsolete and no longer used.
WebTriggerInput	The input data for `IsolatedWorker#onWebTrigger(WebTriggerInput, android.os.OutcomeReceiver)`.
WebTriggerOutput	The result that should be returned by `IsolatedWorker#onWebTrigger(WebTriggerInput, android.os.OutcomeReceiver)`.
WebTriggerOutput.Builder	A builder for `WebTriggerOutput`
WebTriggerParams	Class holding trigger registration parameters.
WebTriggerParams.Builder	A builder for `WebTriggerParams`.
WebTriggerRegistrationRequest	Class to hold input to measurement trigger registration calls from web context.
WebTriggerRegistrationRequest.Builder	Builder for `WebTriggerRegistrationRequest`.
WebView	A View that displays web pages.
WebView.FindListener	Interface to listen for find results.
WebView.HitTestResult
WebView.PictureListener	This interface was deprecated in API level 12. This interface is now obsolete.
WebView.VisualStateCallback	Callback interface supplied to `WebView.postVisualStateCallback(long, VisualStateCallback)` for receiving notifications about the visual state.
WebView.WebViewTransport	Transportation object for returning WebView across thread boundaries.
WebViewClient
WebViewDatabase	This class allows developers to determine whether any WebView used in the application has stored any of the following types of browsing data and to clear any such stored data for all WebViews in the application.
WebViewFragment	This class was deprecated in API level 28. Manually call `WebView#onPause()` and `WebView#onResume()`
WebViewMethodCalledOnWrongThreadViolation
WebViewRenderProcess	WebViewRenderProcess provides an opaque handle to a `WebView` renderer.
WebViewRenderProcessClient	Used to receive callbacks on `WebView` renderer events.
WeekFields	Localized definitions of the day-of-week, week-of-month and week-of-year fields.
WeightRecord	Captures the user's weight.
WeightRecord.Builder	Builder class for `WeightRecord`
WheelchairPushesRecord	Captures the number of wheelchair pushes done over a time interval.
WheelchairPushesRecord.Builder	Builder class for `WheelchairPushesRecord`
WifiAvailableChannel	Contains information about a Wifi channel and bitmask of Wifi operational modes allowed on that channel.
WifiAwareChannelInfo	Wi-Fi Aware data-path channel information.
WifiAwareDataPathSecurityConfig	Wi-Fi Aware data-path security config.
WifiAwareDataPathSecurityConfig.Builder	A builder class for a Wi-Fi Aware data-path security config to encrypt an Aware connection.
WifiAwareManager	This class provides the primary API for managing Wi-Fi Aware operations: discovery and peer-to-peer data connections.
WifiAwareNetworkInfo	Wi-Fi Aware-specific network information.
WifiAwareNetworkSpecifier	Network specifier object used to request a Wi-Fi Aware network.
WifiAwareNetworkSpecifier.Builder	A builder class for a Wi-Fi Aware network specifier to set up an Aware connection with a peer.
WifiAwareSession	This class represents a Wi-Fi Aware session - an attachment to the Wi-Fi Aware service through which the app can execute discovery operations.
WifiConfiguration	This class was deprecated in API level 29. Use `WifiNetworkSpecifier.Builder` to create `NetworkSpecifier` and `WifiNetworkSuggestion.Builder` to create `WifiNetworkSuggestion`. This class can still be used with privileged APIs such as `WifiManager#addNetwork(WifiConfiguration)`.
WifiConfiguration.AuthAlgorithm	Recognized IEEE 802.11 authentication algorithms.
WifiConfiguration.GroupCipher	Recognized group ciphers.
WifiConfiguration.GroupMgmtCipher	Recognized group management ciphers.
WifiConfiguration.KeyMgmt	Recognized key management schemes.
WifiConfiguration.PairwiseCipher	Recognized pairwise ciphers for WPA.
WifiConfiguration.Protocol	Recognized security protocols.
WifiConfiguration.Status	Possible status of a network configuration.
WifiDeviceFilter	A filter for Wifi devices
WifiDeviceFilter.Builder	A builder for `WifiDeviceFilter`
WifiEnterpriseConfig	Enterprise configuration details for Wi-Fi.
WifiEnterpriseConfig.Eap	The Extensible Authentication Protocol method used
WifiEnterpriseConfig.Phase2	The inner authentication method used
WifiInfo	Describes the state of any Wi-Fi connection that is active or is in the process of being set up.
WifiInfo.Builder	Builder for WifiInfo
WifiManager	This class provides the primary API for managing all aspects of Wi-Fi connectivity.
WifiManager.AddNetworkResult	Provides the results of a call to `WifiManager.addNetworkPrivileged(android.net.wifi.WifiConfiguration)`
WifiManager.InterfaceCreationImpact	Class describing an impact of interface creation - returned by `WifiManager.reportCreateInterfaceImpact(int, boolean, java.util.concurrent.Executor, java.util.function.BiConsumer)`.
WifiManager.LocalOnlyConnectionFailureListener	Interface for local-only connection failure listener.
WifiManager.LocalOnlyHotspotCallback	Callback class for applications to receive updates about the LocalOnlyHotspot status.
WifiManager.LocalOnlyHotspotReservation	LocalOnlyHotspotReservation that contains the `SoftApConfiguration` for the active LocalOnlyHotspot request.
WifiManager.MulticastLock	Allows an application to receive Wifi Multicast packets.
WifiManager.ScanResultsCallback	Abstract class for scan results callback.
WifiManager.SubsystemRestartTrackingCallback	Abstract callback class for applications to receive updates about the Wi-Fi subsystem restarting.
WifiManager.SuggestionConnectionStatusListener	Interface for suggestion connection status listener.
WifiManager.SuggestionUserApprovalStatusListener	Interface for network suggestion user approval status change listener.
WifiManager.WifiLock	Allows an application to keep the Wi-Fi radio awake.
WifiManager.WpsCallback	This class was deprecated in API level 28. This is deprecated
WifiNetworkSpecifier	Network specifier object used to request a Wi-Fi network.
WifiNetworkSpecifier.Builder	Builder used to create `WifiNetworkSpecifier` objects.
WifiNetworkSuggestion	The Network Suggestion object is used to provide a Wi-Fi network for consideration when auto-connecting to networks.
WifiNetworkSuggestion.Builder	Builder used to create `WifiNetworkSuggestion` objects.
WifiP2pConfig	A class representing a Wi-Fi P2p configuration for setting up a connection
WifiP2pConfig.Builder	Builder used to build `WifiP2pConfig` objects for creating or joining a group.
WifiP2pDevice	A class representing a Wi-Fi p2p device Note that the operations are not thread safe
WifiP2pDeviceList	A class representing a Wi-Fi P2p device list.
WifiP2pDiscoveryConfig	A class representing a Wi-Fi P2P scan configuration for setting up discovery.
WifiP2pDiscoveryConfig.Builder	Builder for `WifiP2pDiscoveryConfig`.
WifiP2pDnsSdServiceInfo	A class for storing Bonjour service information that is advertised over a Wi-Fi peer-to-peer setup.
WifiP2pDnsSdServiceRequest	A class for creating a Bonjour service discovery request for use with `WifiP2pManager#addServiceRequest` and `WifiP2pManager#removeServiceRequest`
WifiP2pGroup	A class representing a Wi-Fi P2p group.
WifiP2pInfo	A class representing connection information about a Wi-Fi p2p group
WifiP2pManager	This class provides the API for managing Wi-Fi peer-to-peer connectivity.
WifiP2pManager.ActionListener	Interface for callback invocation on an application action
WifiP2pManager.Channel	A channel that connects the application to the Wifi p2p framework.
WifiP2pManager.ChannelListener	Interface for callback invocation when framework channel is lost
WifiP2pManager.ConnectionInfoListener	Interface for callback invocation when connection info is available
WifiP2pManager.DeviceInfoListener	Interface for callback invocation when `WifiP2pDevice` is available in response to `WifiP2pManager.requestDeviceInfo(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.DeviceInfoListener)`.
WifiP2pManager.DiscoveryStateListener	Interface for callback invocation when p2p state is available in response to `WifiP2pManager.requestDiscoveryState(Channel, DiscoveryStateListener)`.
WifiP2pManager.DnsSdServiceResponseListener	Interface for callback invocation when Bonjour service discovery response is received
WifiP2pManager.DnsSdTxtRecordListener	Interface for callback invocation when Bonjour TXT record is available for a service
WifiP2pManager.ExternalApproverRequestListener	Interface for callback invocation when an incoming request is received.
WifiP2pManager.GroupInfoListener	Interface for callback invocation when group info is available
WifiP2pManager.NetworkInfoListener	Interface for callback invocation when `NetworkInfo` is available in response to `WifiP2pManager.requestNetworkInfo(Channel, NetworkInfoListener)`.
WifiP2pManager.P2pStateListener	Interface for callback invocation when p2p state is available in response to `WifiP2pManager.requestP2pState(Channel, P2pStateListener)`.
WifiP2pManager.PeerListListener	Interface for callback invocation when peer list is available
WifiP2pManager.ServiceResponseListener	Interface for callback invocation when service discovery response other than Upnp or Bonjour is received
WifiP2pManager.UpnpServiceResponseListener	Interface for callback invocation when upnp service discovery response is received
WifiP2pManager.WifiP2pListener	Interface used to listen to Wi-Fi p2p various changes such as device state change, discovery started/stopped, connection change, etc.
WifiP2pServiceInfo	A class for storing service information that is advertised over a Wi-Fi peer-to-peer setup
WifiP2pServiceRequest	A class for creating a service discovery request for use with `WifiP2pManager#addServiceRequest` and `WifiP2pManager#removeServiceRequest` This class is used to create service discovery request for custom vendor specific service discovery protocol `WifiP2pServiceInfo#SERVICE_TYPE_VENDOR_SPECIFIC` or to search all service protocols `WifiP2pServiceInfo#SERVICE_TYPE_ALL`.
WifiP2pUpnpServiceInfo	A class for storing Upnp service information that is advertised over a Wi-Fi peer-to-peer setup.
WifiP2pUpnpServiceRequest	A class for creating a Upnp service discovery request for use with `WifiP2pManager#addServiceRequest` and `WifiP2pManager#removeServiceRequest`
WifiP2pWfdInfo	A class representing Wifi Display information for a device.
WifiRttManager	This class provides the primary API for measuring distance (range) to other devices using the IEEE 802.11mc Wi-Fi Round Trip Time (RTT) technology.
WifiSsid	Representation of a Wi-Fi Service Set Identifier (SSID).
WifiSsidPolicy	Used to indicate the Wi-Fi SSID restriction policy the network must satisfy in order to be eligible for a connection.
WildcardType	WildcardType represents a wildcard type expression, such as `?`, `? extends Number`, or `? super Integer`.
Window	Abstract base class for a top-level window look and behavior policy.
Window.Callback	API from a Window back to its caller.
Window.OnFrameMetricsAvailableListener	Callback for clients that want frame timing information for each frame rendered by the Window.
Window.OnRestrictedCaptionAreaChangedListener	Callback for clients that want to be aware of where caption draws content.
WindowAnimationFrameStats	This class was deprecated in API level 34. Use Shared FrameTimeline jank metrics instead.
WindowContentFrameStats	This class contains window content frame statistics.
WindowId	Safe identifier for a window.
WindowId.FocusObserver	Subclass for observing changes to the focus state of an `WindowId`.
WindowInsets	Describes a set of insets for window content.
WindowInsets.Builder	Builder for WindowInsets.
WindowInsets.Side	Class that defines different sides for insets.
WindowInsets.Type	Class that defines different types of sources causing window insets.
WindowInsetsAnimation	Class representing an animation of a set of windows that cause insets.
WindowInsetsAnimation.Bounds	Class representing the range of an `WindowInsetsAnimation`
WindowInsetsAnimation.Callback	Interface that allows the application to listen to animation events for windows that cause insets.
WindowInsetsAnimationController	Controller for app-driven animation of system windows.
WindowInsetsAnimationControlListener	Listener that encapsulates a request to `WindowInsetsController#controlWindowInsetsAnimation`.
WindowInsetsController	Interface to control windows that generate insets.
WindowInsetsController.OnControllableInsetsChangedListener	Listener to be notified when the set of controllable `WindowInsets.Type` controlled by a `WindowInsetsController` changes.
WindowInspector	Provides access to window inspection information.
WindowManager	The interface that apps use to talk to the window manager.
WindowManager.BadTokenException	Exception that is thrown when trying to add view whose `LayoutParams` `LayoutParams#token` is invalid.
WindowManager.InvalidDisplayException	Exception that is thrown when calling `ViewManager.addView(View, LayoutParams)` to a secondary display that cannot be found.
WindowManager.LayoutParams
WindowMetrics	Metrics about a Window, consisting of the bounds and `WindowInsets`.
WordSegmentFinder	Implementation of `SegmentFinder` using words as the text segment.
WorkDuration	WorkDuration contains the measured time in nano seconds of the workload in each component, see `PerformanceHintManager.Session#reportActualWorkDuration(WorkDuration)`.
WorkSource	Describes the source of some work that may be done by someone else.
WpsInfo	A class representing Wi-Fi Protected Setup
WrappedKeyEntry	An `Entry` that holds a wrapped key.
Wrapper	Interface for JDBC classes which provide the ability to retrieve the delegate instance when the instance in question is in fact a proxy class.
WrapperListAdapter	List adapter that wraps another list adapter.
WrapTogetherSpan
WritableByteChannel	A channel that can write bytes.
WritableIdentityCredential	Class used to personalize a new identity credential.
WriteAbortedException	Signals that one of the ObjectStreamExceptions was thrown during a write operation.
WritePendingException	Unchecked exception thrown when an attempt is made to write to an asynchronous socket channel and a previous write has not completed.
Writer	Abstract class for writing to character streams.
WrongMethodTypeException	Thrown to indicate that code has attempted to call a method handle via the wrong method type.

X

X500Principal	This class represents an X.500 `Principal`.
X500PrivateCredential	This class represents an `X500PrivateCredential`.
X509Certificate	Abstract class for X.509 certificates.
X509Certificate	Abstract class for X.509 v1 certificates.
X509CertSelector	A `CertSelector` that selects `X509Certificates` that match all specified criteria.
X509CRL	Abstract class for an X.509 Certificate Revocation List (CRL).
X509CRLEntry	Abstract class for a revoked certificate in a CRL (Certificate Revocation List).
X509CRLSelector	A `CRLSelector` that selects `X509CRLs` that match all specified criteria.
X509EncodedKeySpec	This class represents the ASN.1 encoding of a public key, encoded according to the ASN.1 type `SubjectPublicKeyInfo`.
X509ExtendedKeyManager	Abstract class that provides for extension of the X509KeyManager interface.
X509ExtendedTrustManager	Extensions to the `X509TrustManager` interface to support SSL/TLS connection sensitive trust management.
X509Extension	Interface for an X.509 extension.
X509HostnameVerifier	This interface was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
X509KeyManager	Instances of this interface manage which X509 certificate-based key pairs are used to authenticate the local side of a secure socket.
X509TrustManager	Instance of this interface manage which X509 certificates may be used to authenticate the remote side of a secure socket.
X509TrustManagerExtensions	X509TrustManager wrapper exposing Android-added features.
XdhKeySpec	External Diffie\u2013Hellman (XDH) key spec holding either a public or private key.
XECKey	An interface for an elliptic curve public/private key as defined by RFC 7748.
XECPrivateKey	An interface for an elliptic curve private key as defined by RFC 7748.
XECPrivateKeySpec	A class representing elliptic curve private keys as defined in RFC 7748, including the curve and other algorithm parameters.
XECPublicKey	An interface for an elliptic curve public key as defined by RFC 7748.
XECPublicKeySpec	A class representing elliptic curve public keys as defined in RFC 7748, including the curve and other algorithm parameters.
Xfermode	Xfermode is the base class for objects that are called to implement custom "transfer-modes" in the drawing pipeline.
Xml	XML utility methods.
Xml.Encoding	Supported character encodings.
XMLConstants	Utility class to contain basic XML values as constants.
XMLFilter	Interface for an XML filter.
XMLFilterImpl	Base class for deriving an XML filter.
XMLFormatter	Format a LogRecord into a standard XML format.
XMLGregorianCalendar	Representation for W3C XML Schema 1.0 date/time datatypes.
XmlPullParser	XML Pull Parser is an interface that defines parsing functionality provided in XMLPULL V1 API (visit this website to learn more about API and its implementations).
XmlPullParserException	This exception is thrown to signal XML Pull Parser related faults.
XmlPullParserFactory	This class is used to create implementations of XML Pull Parser defined in XMPULL V1 API.
XMLReader	Interface for reading an XML document using callbacks.
XMLReaderAdapter	Adapt a SAX2 XMLReader as a SAX1 Parser.
XMLReaderFactory	Factory for creating an XML reader.
XmlResourceParser	The XML parsing interface returned for an XML resource.
XmlSerializer	Define an interface to serialization of XML Infoset.
XPath	`XPath` provides access to the XPath evaluation environment and expressions.
XPathConstants	XPath constants.
XPathException	`XPathException` represents a generic XPath exception.
XPathExpression	`XPathExpression` provides access to compiled XPath expressions.
XPathExpressionException	`XPathExpressionException` represents an error in an XPath expression.
XPathFactory	An `XPathFactory` instance can be used to create `XPath` objects.
XPathFactoryConfigurationException	`XPathFactoryConfigurationException` represents a configuration error in a `XPathFactory` environment.
XPathFunction	`XPathFunction` provides access to XPath functions.
XPathFunctionException	`XPathFunctionException` represents an error with an XPath function.
XPathFunctionResolver	`XPathFunctionResolver` provides access to the set of user defined `XPathFunction`s.
XPathVariableResolver	`XPathVariableResolver` provides access to the set of user defined XPath variables.

Y

Year	A year in the ISO-8601 calendar system, such as `2007`.
YearMonth	A year-month in the ISO-8601 calendar system, such as `2007-12`.
YuvImage	YuvImage contains YUV data and provides a method that compresses a region of the YUV data to a Jpeg.

Z

ZenDeviceEffects	Represents the set of device effects (affecting display and device behavior in general) that are applied whenever an `AutomaticZenRule` is active.
ZenDeviceEffects.Builder	Builder class for `ZenDeviceEffects` objects.
ZenPolicy	ZenPolicy determines whether to allow certain notifications and their corresponding sounds to play when a device is in Do Not Disturb mode.
ZenPolicy.Builder	Builder class for `ZenPolicy` objects.
ZipEntry	This class is used to represent a ZIP file entry.
ZipError	Signals that an unrecoverable error has occurred.
ZipException	Signals that a Zip exception of some sort has occurred.
ZipFile	This class is used to read entries from a zip file.
ZipInputStream	This class implements an input stream filter for reading files in the ZIP file format.
ZipOutputStream	This class implements an output stream filter for writing files in the ZIP file format.
ZipPathValidator	Enables validation of zip file entry paths to prevent exploitation of the path traversal vulnerability, e.g. zip path entries containing ".." or "/".
ZipPathValidator.Callback	Interface that defines the core validation mechanism when accessing zip file entry paths.
ZonedDateTime	A date-time with a time-zone in the ISO-8601 calendar system, such as `2007-12-03T10:15:30+01:00 Europe/Paris`.
ZoneId	A time-zone ID, such as `Europe/Paris`.
ZoneOffset	A time-zone offset from Greenwich/UTC, such as `+02:00`.
ZoneOffsetTransition	A transition between two offsets caused by a discontinuity in the local time-line.
ZoneOffsetTransitionRule	A rule expressing how to create a transition.
ZoneOffsetTransitionRule.TimeDefinition	A definition of the way a local time can be converted to the actual transition date-time.
ZoneRules	The rules defining how the zone offset varies for a single time-zone.
ZoneRulesException	Thrown to indicate a problem with time-zone configuration.
ZoomButton	This class was deprecated in API level 26. Use other means to handle this functionality. This widget is merely a simple wrapper around a long-press handler.
ZoomButtonsController	This class was deprecated in API level 26. This functionality and UI is better handled with custom views and layouts rather than a dedicated zoom-control widget
ZoomButtonsController.OnZoomListener	Interface that will be called when the user performs an interaction that triggers some action, for example zooming.
ZoomControls	This class was deprecated in API level 29. This functionality and UI is better handled with custom views and layouts rather than a dedicated zoom-control widget
ZygotePreload	This is the interface to be implemented for the class that is specified by the `android:zygotePreloadName` of the <application> tag.

Class Index

A

B

Bidi algorithm for ICU

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z