Class Index

Kotlin |Java

These are the API classes. See all API packages.

A

AbsSavedState	A `Parcelable` implementation that should be used by inheritance hierarchies to ensure the state of all classes along the chain is saved.
AbstractDetailsDescriptionPresenter	An abstract `Presenter` for rendering a detailed description of an item.
AbstractDetailsDescriptionPresenter.ViewHolder	The ViewHolder for the `AbstractDetailsDescriptionPresenter`.
AbstractMediaItemPresenter	Abstract `Presenter` class for rendering media items in a playlist format.
AbstractMediaItemPresenter.ViewHolder	The ViewHolder for the `AbstractMediaItemPresenter`.
AbstractMediaListHeaderPresenter	Abstract presenter class for rendering the header for a list of media items in a playlist.
AbstractMediaListHeaderPresenter.ViewHolder	The ViewHolder for the `AbstractMediaListHeaderPresenter`.
AbstractSavedStateViewModelFactory	Skeleton of androidx.lifecycle.ViewModelProvider.KeyedFactory that creates `SavedStateHandle` for every requested `ViewModel`.
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.
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.
AccessibilityClickableSpanCompat	`ClickableSpan` cannot be parceled, but accessibility services need to be able to cause their callback handlers to be called.
AccessibilityDelegateCompat	Helper for accessing `View.AccessibilityDelegate`.
AccessibilityEventCompat	Helper for accessing features in `AccessibilityEvent`.
AccessibilityManagerCompat	Helper for accessing features in `AccessibilityManager`.
AccessibilityManagerCompat.AccessibilityStateChangeListener	This interface is deprecated. Use `AccessibilityManager.AccessibilityStateChangeListener` directly instead of this listener.
AccessibilityManagerCompat.AccessibilityStateChangeListenerCompat	This class is deprecated. Use `AccessibilityManager.AccessibilityStateChangeListener` directly instead of this listener.
AccessibilityManagerCompat.TouchExplorationStateChangeListener	Listener for the system touch exploration state.
AccessibilityNodeInfoCompat	Helper for accessing `AccessibilityNodeInfo` in a backwards compatible fashion.
AccessibilityNodeInfoCompat.AccessibilityActionCompat	A class defining an action that can be performed on an `AccessibilityNodeInfo`.
AccessibilityNodeInfoCompat.CollectionInfoCompat	Class with information if a node is a collection.
AccessibilityNodeInfoCompat.CollectionItemInfoCompat	Class with information if a node is a collection item.
AccessibilityNodeInfoCompat.RangeInfoCompat	Class with information if a node is a range.
AccessibilityNodeInfoCompat.TouchDelegateInfoCompat	Class with information of touch delegated views and regions.
AccessibilityNodeProviderCompat	Helper for accessing `AccessibilityNodeProvider`.
AccessibilityRecordCompat	Helper for accessing `AccessibilityRecord`.
AccessibilityServiceInfoCompat	Helper for accessing features in `AccessibilityServiceInfo`.
AccessibilityViewCommand	Functional interface used to create a custom accessibility action.
AccessibilityViewCommand.CommandArguments	Object containing arguments passed into an `AccessibilityViewCommand`
AccessibilityViewCommand.MoveAtGranularityArguments	Arguments for `#ACTION_NEXT_AT_MOVEMENT_GRANULARITY` and `#ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY`
AccessibilityViewCommand.MoveHtmlArguments	Arguments for `AccessibilityNodeInfoCompat.ACTION_NEXT_HTML_ELEMENT` and `#ACTION_PREVIOUS_HTML_ELEMENT`
AccessibilityViewCommand.MoveWindowArguments	Arguments for `#ACTION_MOVE_WINDOW`
AccessibilityViewCommand.ScrollToPositionArguments	Arguments for `#ACTION_SCROLL_TO_POSITION`
AccessibilityViewCommand.SetProgressArguments	Arguments for `#ACTION_SET_PROGRESS`
AccessibilityViewCommand.SetSelectionArguments	Arguments for `#ACTION_SET_SELECTION`
AccessibilityViewCommand.SetTextArguments	Arguments for `AccessibilityNodeInfoCompat.AccessibilityActionCompat.ACTION_SET_TEXT`
AccessibilityWindowInfoCompat	Helper for accessing `AccessibilityWindowInfo`.
Action	Represents an action with an optional icon and text.
Action	An action contains one or two lines of text, an optional image and an optional id.
Action.Builder	A builder of `Action`.
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 is deprecated. 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 is deprecated. 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 is deprecated. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionBarDrawerToggle	This class provides a handy way to tie together the functionality of `DrawerLayout` and the framework `ActionBar` to implement the recommended design for navigation drawers.
ActionBarDrawerToggle.Delegate
ActionBarDrawerToggle.DelegateProvider	Allows an implementing Activity to return an `ActionBarDrawerToggle.Delegate` to use with ActionBarDrawerToggle.
ActionBuilders	Builders for actions that can be performed when a user interacts with layout elements.
ActionBuilders.Action	Interface defining an action that can be used by a layout element.
ActionBuilders.Action.Builder	Builder to create `ActionBuilders.Action` objects.
ActionBuilders.AndroidActivity	A launch action to send an intent to an Android activity.
ActionBuilders.AndroidActivity.Builder	Builder for `ActionBuilders.AndroidActivity`
ActionBuilders.AndroidBooleanExtra	A boolean value that can be added to an Android intent's extras.
ActionBuilders.AndroidBooleanExtra.Builder	Builder for `ActionBuilders.AndroidBooleanExtra`.
ActionBuilders.AndroidDoubleExtra	A double value that can be added to an Android intent's extras.
ActionBuilders.AndroidDoubleExtra.Builder	Builder for `ActionBuilders.AndroidDoubleExtra`.
ActionBuilders.AndroidExtra	Interface defining an item that can be included in the extras of an intent that will be sent to an Android activity.
ActionBuilders.AndroidExtra.Builder	Builder to create `ActionBuilders.AndroidExtra` objects.
ActionBuilders.AndroidIntExtra	An integer value that can be added to an Android intent's extras.
ActionBuilders.AndroidIntExtra.Builder	Builder for `ActionBuilders.AndroidIntExtra`.
ActionBuilders.AndroidLongExtra	A long value that can be added to an Android intent's extras.
ActionBuilders.AndroidLongExtra.Builder	Builder for `ActionBuilders.AndroidLongExtra`.
ActionBuilders.AndroidStringExtra	A string value that can be added to an Android intent's extras.
ActionBuilders.AndroidStringExtra.Builder	Builder for `ActionBuilders.AndroidStringExtra`.
ActionBuilders.LaunchAction	An action used to launch another activity on the system.
ActionBuilders.LaunchAction.Builder	Builder for `ActionBuilders.LaunchAction`.
ActionBuilders.LoadAction	An action used to load (or reload) the tile contents.
ActionBuilders.LoadAction.Builder	Builder for `ActionBuilders.LoadAction`.
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.
ActionProvider	This class is a mediator for accomplishing a given task, for example sharing a file.
ActionProvider.VisibilityListener	Listens to changes in visibility as reported by `ActionProvider.refreshVisibility()`.
ActionStrip	Represents a list of `Action`s that are used for a template.
ActionStrip.Builder	A builder of `ActionStrip`.
ActivityCompat	Helper for accessing features in `Activity`.
ActivityCompat.OnRequestPermissionsResultCallback	This interface is the contract for receiving the results for permission requests.
ActivityCompat.PermissionCompatDelegate	Customizable delegate that allows delegating permission compatibility methods to a custom implementation.
ActivityInfoCompat	This class is deprecated. Use `ActivityInfo` directly.
ActivityManagerCompat	Helper for accessing features in `ActivityManager` in a backwards compatible fashion.
ActivityOptionsCompat	Helper for accessing features in `ActivityOptions` in a backwards compatible fashion.
ActivityResult	A container for an activity result as obtained form `Activity.onActivityResult(int, int, Intent)`
ActivityResultCallback<O>	A type-safe callback to be called when an `activity result` is available.
ActivityResultCaller	A class that can call `Activity.startActivityForResult(Intent, int)`-style APIs without having to manage request codes, and converting request/response to an `Intent`
ActivityResultContract<I, O>	A contract specifying that an activity can be called with an input of type I and produce an output of type O Makes calling an activity for result type-safe.
ActivityResultContract.SynchronousResult<T>	The wrapper for a result provided in `ActivityResultContract.getSynchronousResult(Context, I)`
ActivityResultContracts	A collection of some standard activity call contracts, as provided by android.
ActivityResultContracts.CaptureVideo	An `ActivityResultContract` to `take a video` saving it into the provided content-`Uri`.
ActivityResultContracts.CreateDocument	An `ActivityResultContract` to prompt the user to select a path for creating a new document, returning the `content:` `Uri` of the item that was created.
ActivityResultContracts.GetContent	An `ActivityResultContract` to prompt the user to pick a piece of content, receiving a `content://` `Uri` for that content that allows you to use `ContentResolver.openInputStream(Uri)` to access the raw data.
ActivityResultContracts.GetMultipleContents	An `ActivityResultContract` to prompt the user to pick one or more a pieces of content, receiving a `content://` `Uri` for each piece of content that allows you to use `ContentResolver.openInputStream(Uri)` to access the raw data.
ActivityResultContracts.OpenDocument	An `ActivityResultContract` to prompt the user to open a document, receiving its contents as a `file:/http:/content:` `Uri`.
ActivityResultContracts.OpenDocumentTree	An `ActivityResultContract` to prompt the user to select a directory, returning the user selection as a `Uri`.
ActivityResultContracts.OpenMultipleDocuments	An `ActivityResultContract` to prompt the user to open (possibly multiple) documents, receiving their contents as `file:/http:/content:` `Uri`s.
ActivityResultContracts.PickContact	An `ActivityResultContract` to request the user to pick a contact from the contacts app.
ActivityResultContracts.RequestMultiplePermissions	An `ActivityResultContract` to `request permissions`
ActivityResultContracts.RequestPermission	An `ActivityResultContract` to `request a permission`
ActivityResultContracts.StartActivityForResult	An `ActivityResultContract` that doesn't do any type conversion, taking raw `Intent` as an input and `ActivityResult` as an output.
ActivityResultContracts.StartIntentSenderForResult	An `ActivityResultContract` that calls `Activity.startIntentSender(IntentSender, Intent, int, int, int)`.
ActivityResultContracts.TakePicture	An `ActivityResultContract` to `take a picture` saving it into the provided content-`Uri`.
ActivityResultContracts.TakePicturePreview	An `ActivityResultContract` to `take small a picture` preview, returning it as a `Bitmap`.
ActivityResultContracts.TakeVideo	This class is deprecated. The thumbnail bitmap is rarely returned and is not a good signal to determine whether the video was actually successfully captured. Use `ActivityResultContracts.CaptureVideo` to instead.
ActivityResultLauncher<I>	A launcher for a previously-`prepared call` to start the process of executing an `ActivityResultContract`.
ActivityResultRegistry	A registry that stores `activity result callbacks` for `registered calls`.
ActivityResultRegistryOwner	A class that has an `ActivityResultRegistry` that allows you to register a `ActivityResultCallback` for handling an `ActivityResultContract`.
AdapterListUpdateCallback	ListUpdateCallback that dispatches update events to the given adapter.
AdvertisingIdClient	Client for retrieving Advertising ID related info from an AndroidX ID Provider installed on the device.
AdvertisingIdInfo	Advertising ID Information.
AdvertisingIdNotAvailableException	Indicates an AndroidX Advertising ID is not available.
AdvertisingIdProvider	The class for the AndroidX Advertising ID Provider that should provide the resettable ID and LAT preference should implement this interface.
AdvertisingIdProviderInfo	A `AdvertisingIdProviderInfo` represents the information about an Advertising ID Provider installed on the device.
AdvertisingIdProviderManager	The AdvertisingIdProviderManager will be used by an Advertising ID Provider to register the provider implementation or retrieve all the Advertising ID Providers on the device.
AlarmManagerCompat	Compatibility library for `AlarmManager` with fallbacks for older platforms.
AlertDialog	A subclass of Dialog that can display one, two or three buttons.
AlertDialog.Builder
AlreadyPersonalizedException	Thrown if trying to create a credential which already exists.
AmbientMode	This class is deprecated. please use `AmbientModeSupport` instead.
AmbientMode.AmbientCallback	Callback to receive ambient mode state changes.
AmbientMode.AmbientCallbackProvider	Interface for any `Activity` that wishes to implement Ambient Mode.
AmbientMode.AmbientController	A class for interacting with the ambient mode on a wearable device.
AmbientModeSupport	Use this as a headless Fragment to add ambient support to an Activity on Wearable devices.
AmbientModeSupport.AmbientCallback	Callback to receive ambient mode state changes.
AmbientModeSupport.AmbientCallbackProvider	Interface for any `Activity` that wishes to implement Ambient Mode.
AmbientModeSupport.AmbientController	A class for interacting with the ambient mode on a wearable device.
AndroidViewModel	Application context aware `ViewModel`.
Animatable2Compat	Interface that drawables supporting animations and callbacks should extend in support lib.
Animatable2Compat.AnimationCallback	Abstract class for animation callback.
AnimatedStateListDrawableCompat	A `Drawable` providing animated transitions between states.
AnimatedVectorDrawableCompat	For API 24 and above, this class is delegating to the framework's `AnimatedVectorDrawable`.
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`.
Animator.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`.
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`.
AnimatorRes	Denotes that an integer parameter, field or method return value is expected to be an animator resource reference (e.g.
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.
AnimatorTestRule	JUnit `TestRule` that can be used to run `Animator`s without actually waiting for the duration of the animation.
AnimRes	Denotes that an integer parameter, field or method return value is expected to be an anim resource reference (e.g.
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.
AnyRes	Denotes that an integer parameter, field or method return value is expected to be a resource reference of any type.
AnyThread	Denotes that the annotated method can be called from any thread (e.g.
AppAuthenticator	Provides methods to verify the signing identity of other apps on the device.
AppAuthenticatorXmlException	This `Exception` is thrown when the XML configuration file is not in the proper format to instantiate a new `AppAuthenticator`.
AppCompatActivity	Base class for activities that wish to use some of the newer platform features on older Android devices.
AppCompatAutoCompleteTextView	A `AutoCompleteTextView` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `ViewCompat`.
AppCompatButton	A `Button` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `ViewCompat`.
AppCompatCallback	Implemented this in order for AppCompat to be able to callback in certain situations.
AppCompatCheckBox	A `CheckBox` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `CompoundButtonCompat`.
AppCompatCheckedTextView	A `CheckedTextView` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `ViewCompat`.
AppCompatDelegate	This class represents a delegate which you can use to extend AppCompat's support to any `Activity`.
AppCompatDialog	Base class for AppCompat themed `Dialog`s.
AppCompatDialogFragment	A special version of `DialogFragment` which uses an `AppCompatDialog` in place of a platform-styled dialog.
AppCompatEditText	A `EditText` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `ViewCompat`.
AppCompatImageButton	A `ImageButton` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `ViewCompat`.
AppCompatImageView	A `ImageView` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `ViewCompat`.
AppCompatMultiAutoCompleteTextView	A `MultiAutoCompleteTextView` which supports compatible features on older version of the platform, including: Supports `R.attr.textAllCaps` style attribute which works back to `Gingerbread`.
AppCompatRadioButton	A `RadioButton` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `CompoundButtonCompat`.
AppCompatRatingBar	A `RatingBar` which supports compatible features on older versions of the platform.
AppCompatResources	Class for accessing an application's resources through AppCompat, and thus any backward compatible functionality.
AppCompatSeekBar	A `SeekBar` which supports compatible features on older versions of the platform.
AppCompatSpinner	A `Spinner` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `ViewCompat`.
AppCompatTextView	A `TextView` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `ViewCompat`.
AppCompatToggleButton	A `ToggleButton` which supports compatible features on older versions of the platform, including: Allows dynamic tint of its background via the background tint methods in `ViewCompat`.
AppCompatViewInflater	This class is used by AppCompat to automatically "substitute" all usages of core Android widgets inflated from layout files by the AppCompat extensions of those widgets.
AppComponentFactory	Version of `AppComponentFactory` that works with androidx libraries.
AppInfo	Container class for information about the app the host is connected to.
AppInitializer	An `AppInitializer` can be used to initialize all discovered [ComponentInitializer]s.
AppLaunchChecker	This class provides APIs for determining how an app has been launched.
AppManager	Manages the communication between the app and the host.
AppOpsManagerCompat	Helper for accessing features in `AppOpsManager`.
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.
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 `AppSearchSchema.BooleanPropertyConfig`.
AppSearchSchema.Builder	Builder for `objects`.
AppSearchSchema.BytesPropertyConfig	Configuration for a property containing a byte array.
AppSearchSchema.BytesPropertyConfig.Builder	Builder for `AppSearchSchema.BytesPropertyConfig`.
AppSearchSchema.DocumentPropertyConfig	Configuration for a property containing another Document.
AppSearchSchema.DocumentPropertyConfig.Builder	Builder for `AppSearchSchema.DocumentPropertyConfig`.
AppSearchSchema.DoublePropertyConfig	Configuration for a property containing a double-precision decimal number.
AppSearchSchema.DoublePropertyConfig.Builder	Builder for `AppSearchSchema.DoublePropertyConfig`.
AppSearchSchema.Int64PropertyConfig	Configuration for a property containing a 64-bit integer.
AppSearchSchema.Int64PropertyConfig.Builder	Builder for `AppSearchSchema.Int64PropertyConfig`.
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 `AppSearchSchema.StringPropertyConfig`.
AppSearchSession	Provides a connection to a single AppSearch database.
AppWidgetProviderWithCallbacks<T extends CallbackReceiver>	Version of `AppWidgetProvider` that implements a `CallbackReceiver`.
ArcLayout	Container which will lay its elements out on an arc.
ArcLayout.LayoutParams	Layout parameters for a widget added to an arc.
ArcLayout.Widget	Interface for a widget which knows it is being rendered inside an arc, and will draw itself accordingly.
ArcMotion	A PathMotion that generates a curved path along an arc on an imaginary circle containing the two points.
ArgbEvaluator	This evaluator can be used to perform type interpolation between integer values that represent ARGB colors.
ArrayCreatingInputMerger	An `InputMerger` that attempts to merge the inputs, creating arrays when necessary.
ArrayMap<K, V>	ArrayMap is a generic key->value mapping data structure that is designed to be more memory efficient than a traditional `HashMap`, this implementation is a version of the platform's `android.util.ArrayMap` that can be used on older versions of the platform.
ArrayObjectAdapter	An `ObjectAdapter` implemented with an `ArrayList`.
ArrayRes	Denotes that an integer parameter, field or method return value is expected to be an array resource reference (e.g.
ArraySet<E>	ArraySet is a generic set data structure that is designed to be more memory efficient than a traditional `HashSet`.
AspectRatio	The aspect ratio of the use case.
AsyncDifferConfig<T>	Configuration object for `ListAdapter`, `AsyncListDiffer`, and similar background-thread list diffing adapter logic.
AsyncDifferConfig.Builder<T>	Builder class for `AsyncDifferConfig`.
AsyncLayoutInflater	Helper class for inflating layouts asynchronously.
AsyncLayoutInflater.OnInflateFinishedListener
AsyncListDiffer<T>	Helper for computing the difference between two lists via `DiffUtil` on a background thread.
AsyncListDiffer.ListListener<T>	Listener for when the current List is updated.
AsyncListUtil<T>	A utility class that supports asynchronous content loading.
AsyncListUtil.DataCallback<T>	The callback that provides data access for `AsyncListUtil`.
AsyncListUtil.ViewCallback	The callback that links `AsyncListUtil` with the list view.
AsyncTaskLoader<D>	Static library support version of the framework's `AsyncTaskLoader`.
AtomicFile	Static library support version of the framework's `AtomicFile`, a 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.
Attribute	Map a getter to its Android resources attribute.
Attribute.IntMap	One entry in a mapping of int values to enum or flag names.
AttrRes	Denotes that an integer parameter, field or method return value is expected to be an attribute reference (e.g.
AudioAttributesCompat	A class to encapsulate a collection of attributes describing information about an audio stream.
AudioAttributesCompat.Builder	Builder class for `AudioAttributesCompat` objects.
AudioFocusRequestCompat	Compatibility version of an `AudioFocusRequest`.
AudioFocusRequestCompat.Builder	Builder class for `AudioFocusRequestCompat` objects.
AudioManagerCompat	Compatibility library for `AudioManager` with fallbacks for older platforms.
AuthPrompt	A handle to the prompt that is shown while the user is authenticating.
AuthPromptCallback	A collection of methods that may be invoked by an auth prompt during authentication.
AuthPromptHost	A wrapper class for the component that will be used to host an auth prompt.
AutoImageCaptureExtender	Load the OEM extension implementation for auto effect type.
AutoMigration	Declares an automatic migration on a Database.
AutoMigrationSpec	Interface for defining an automatic migration specification for Room databases.
AutoPreviewExtender	Load the OEM extension Preview implementation for auto effect type.
AutoScrollHelper	AutoScrollHelper is a utility class for adding automatic edge-triggered scrolling to Views.
AutoTransition	Utility class for creating a default transition that automatically fades, moves, and resizes views during a scene change.

B

BackgroundManager	Supports background image continuity between multiple Activities.
BackoffPolicy	An enumeration of backoff policies when retrying work.
BandPredicate	Provides a means of controlling when and where band selection can be initiated.
BandPredicate.EmptyArea	A BandPredicate that allows initiation of band selection only in areas of RecyclerView that map to `RecyclerView.NO_POSITION`.
BandPredicate.NonDraggableArea	A BandPredicate that allows initiation of band selection in any area that is not draggable as determined by consulting `ItemDetailsLookup.ItemDetails.inDragRegion(MotionEvent)`.
BaseCardView	A card style layout that responds to certain state changes.
BaseCardView.LayoutParams	Per-child layout information associated with BaseCardView.
BaseFragment	This class is deprecated. use `BaseSupportFragment`
BaseGridView	An abstract base class for vertically and horizontally scrolling lists.
BaseGridView.OnKeyInterceptListener	Listener for intercepting key dispatch events.
BaseGridView.OnLayoutCompletedListener	Interface for receiving notification when BaseGridView has completed a full layout calculation.
BaseGridView.OnMotionInterceptListener	Listener for intercepting generic motion dispatch events.
BaseGridView.OnTouchInterceptListener	Listener for intercepting touch dispatch events.
BaseGridView.OnUnhandledKeyListener
BaseGridView.SmoothScrollByBehavior	Defines behavior of duration and interpolator for smoothScrollBy().
BaseLeanbackPreferenceFragment	This class is deprecated. Use `BaseLeanbackPreferenceFragmentCompat`
BaseLeanbackPreferenceFragmentCompat	This fragment provides a preference fragment with leanback-style behavior, suitable for embedding into broader UI elements.
BaseOnItemViewClickedListener<T>	Interface for receiving notification when an item view holder is clicked.
BaseOnItemViewSelectedListener<T>	Interface for receiving notification when a row or item becomes selected.
BaseSupportFragment	Base class for leanback Fragments.
BatchingListUpdateCallback	Wraps a `ListUpdateCallback` callback and batches operations that can be merged.
BeautyImageCaptureExtender	Load the OEM extension implementation for beauty effect type.
BeautyPreviewExtender	Load the OEM extension Preview implementation for beauty effect type.
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.
BidirectionalTypeConverter<T, V>	Abstract base class used convert type T to another type V and back again.
BinderThread	Denotes that the annotated method should only be called on the binder thread.
BiometricManager	A class that provides system information related to biometrics (e.g.
BiometricManager.Authenticators	Types of authenticators, defined at a level of granularity supported by `BiometricManager` and `BiometricPrompt`.
BiometricPrompt	A class that manages a system-provided biometric prompt.
BiometricPrompt.AuthenticationCallback	A collection of methods that may be invoked by `BiometricPrompt` during authentication.
BiometricPrompt.AuthenticationResult	A container for data passed to `BiometricPrompt.AuthenticationCallback.onAuthenticationSucceeded(AuthenticationResult)` when the user has successfully authenticated.
BiometricPrompt.CryptoObject	A wrapper class for the crypto objects supported by `BiometricPrompt`.
BiometricPrompt.PromptInfo	A set of configurable options for how the `BiometricPrompt` should appear and behave.
BiometricPrompt.PromptInfo.Builder	A builder used to set individual options for the `BiometricPrompt.PromptInfo` class.
BitmapCompat	Helper for accessing features in `Bitmap`.
BlendModeColorFilterCompat	Helper for accessing ColorFilter APIs on various API levels of the platform
BlendModeCompat	Compat version of `BlendMode`, usages of `BlendModeCompat` will map to `PorterDuff.Mode` wherever possible
BokehImageCaptureExtender	Loads the OEM extension implementation for bokeh effect type.
BokehPreviewExtender	Load the OEM extension Preview implementation for bokeh effect type.
BoolRes	Denotes that an integer parameter, field or method return value is expected to be a boolean resource reference.
BounceInterpolator	An interpolator where the change bounces at the end.
BoundaryInterfaceReflectionUtil	A set of utility methods used for calling across the support library boundary.
BoundsRule	This class contains the rules for updating the bounds of a `CompositeDrawable.ChildDrawable`.
BoundsRule.ValueRule	This class represents individual rules for updating the bounds.
BoxInsetLayout	BoxInsetLayout is a screen shape-aware ViewGroup that can box its children in the center square of a round screen by using the `layout_boxedEdges` attribute.
BoxInsetLayout.LayoutParams	Per-child layout information for layouts that support margins, gravity and boxedEdges.
BrandedFragment	This class is deprecated. use `BrandedSupportFragment`
BrandedSupportFragment	Fragment class for managing search and branding using a view that implements `TitleViewAdapter.Provider`.
BroadcastReceiverWithCallbacks<T extends CallbackReceiver>	Extend this broadcast receiver to be able to receive callbacks as well as normal broadcasts.
BrowseFragment	This class is deprecated. use `BrowseSupportFragment`
BrowseFragment.BrowseTransitionListener	This class is deprecated. use `BrowseSupportFragment`
BrowseFragment.FragmentFactory<T extends Fragment>	This class is deprecated. use `BrowseSupportFragment`
BrowseFragment.FragmentHost	This interface is deprecated. use `BrowseSupportFragment`
BrowseFragment.ListRowFragmentFactory	This class is deprecated. use `BrowseSupportFragment`
BrowseFragment.MainFragmentAdapter<T extends Fragment>	This class is deprecated. use `BrowseSupportFragment`
BrowseFragment.MainFragmentAdapterProvider	This interface is deprecated. use `BrowseSupportFragment`
BrowseFragment.MainFragmentAdapterRegistry	This class is deprecated. use `BrowseSupportFragment`
BrowseFragment.MainFragmentRowsAdapter<T extends Fragment>	This class is deprecated. use `BrowseSupportFragment`
BrowseFragment.MainFragmentRowsAdapterProvider	This interface is deprecated. use `BrowseSupportFragment`
BrowseFrameLayout	A ViewGroup for managing focus behavior between overlapping views.
BrowseFrameLayout.OnChildFocusListener	Interface for managing child focus in a BrowseFrameLayout.
BrowseFrameLayout.OnFocusSearchListener	Interface for selecting a focused view in a BrowseFrameLayout when the system focus finder couldn't find a view to focus.
BrowserActionItem	This class is deprecated. Browser Actions are deprecated as of release 1.2.0.
BrowserActionsIntent	This class is deprecated. Browser Actions are deprecated as of release 1.2.0.
BrowserActionsIntent.Builder	Builder class for opening a Browser Actions context menu.
BrowseSupportFragment	A fragment for creating Leanback browse screens.
BrowseSupportFragment.BrowseTransitionListener	Listener for transitions between browse headers and rows.
BrowseSupportFragment.FragmentFactory<T extends Fragment>	Factory class responsible for creating fragment given the current item.
BrowseSupportFragment.FragmentHost	Possible set of actions that `BrowseSupportFragment` exposes to clients.
BrowseSupportFragment.ListRowFragmentFactory	FragmentFactory implementation for `ListRow`.
BrowseSupportFragment.MainFragmentAdapter<T extends Fragment>	Interface that defines the interaction between `BrowseSupportFragment` and its main content fragment.
BrowseSupportFragment.MainFragmentAdapterProvider	Interface to be implemented by all fragments for providing an instance of `BrowseSupportFragment.MainFragmentAdapter`.
BrowseSupportFragment.MainFragmentAdapterRegistry	Registry class maintaining the mapping of `Row` subclasses to `BrowseSupportFragment.FragmentFactory`.
BrowseSupportFragment.MainFragmentRowsAdapter<T extends Fragment>	This is used to pass information to `RowsSupportFragment` or its subclasses.
BrowseSupportFragment.MainFragmentRowsAdapterProvider	Interface to be implemented by `RowsSupportFragment` and its subclasses for providing an instance of `BrowseSupportFragment.MainFragmentRowsAdapter`.
BuildCompat	This class contains additional platform version checking methods for targeting pre-release versions of Android.
Bundleable	A class that serializes and stores an object for sending over IPC.
BundleCompat	Helper for accessing features in `Bundle`.
BundledEmojiCompatConfig	`EmojiCompat.Config` implementation that loads the metadata using AssetManager and bundled resources.
BundlerException	An `Exception` that notates a failure in serializing or deserialized to or from a bundle.

C

CallbackHandlerRegistry	The holder for callbacks that are tagged with `RemoteCallable`.
CallbackHandlerRegistry.CallbackHandler<T extends CallbackReceiver>	The interface used to trigger a callback when the pending intent is fired.
CallbackMediaItem	Structure for media item descriptor for `DataSourceCallback`.
CallbackMediaItem.Builder	This Builder class simplifies the creation of a `CallbackMediaItem` object.
CallbackReceiver<T>	An objects that can receive remote callbacks.
CallbackToFutureAdapter	A utility useful for adapting interfaces that take callbacks into interfaces that return `ListenableFuture`.
CallbackToFutureAdapter.Completer<T>	Used to complete the future returned by `CallbackToFutureAdapter.getFuture(CallbackToFutureAdapter.Resolver)`
CallbackToFutureAdapter.Resolver<T>	This interface should be implemented by the object passed into `CallbackToFutureAdapter.getFuture(Resolver)`.
CallSuper	Denotes that any overriding methods should invoke this method as well.
Camera	The camera interface is used to control the flow of data to use cases, control the camera via the `CameraControl`, and publish the state of the camera via `CameraInfo`.
Camera2CameraControl	An class that provides ability to interoperate with the `android.hardware.camera2` APIs.
Camera2CameraInfo	An interface for retrieving Camera2-related camera information.
Camera2Config	Convenience class for generating a pre-populated Camera2 `CameraXConfig`.
Camera2Interop	Utilities related to interoperability with the `android.hardware.camera2` APIs.
Camera2Interop.Extender<T>	Extends a `ExtendableBuilder` to add Camera2 options.
CameraControl	The `CameraControl` provides various asynchronous operations like zoom, focus and metering which affects output of all `UseCase`s currently bound to that camera.
CameraControl.OperationCanceledException	An exception representing a failure that the operation is canceled which might be caused by a new value is set or camera is closed.
CameraController	The abstract base camera controller class.
CameraFilter	An interface for filtering cameras.
CameraInfo	An interface for retrieving camera information.
CameraInfoUnavailableException	An exception thrown when unable to retrieve information about a camera.
CameraSelector	A set of requirements and priorities used to select a camera or return a filtered set of cameras.
CameraSelector.Builder	Builder for a `CameraSelector`.
CameraState	Represents the different states the camera can be in.
CameraState.ErrorType	Types of errors the camera can encounter.
CameraState.StateError	Error that the camera has encountered.
CameraState.Type	States the camera can be in.
CameraUnavailableException	`CameraUnavailableException` is thrown when a camera device could not be queried or opened or if the connection to an opened camera device is no longer valid.
CameraXConfig	A configuration for adding implementation and user-specific behavior to CameraX.
CameraXConfig.Builder	A builder for generating `CameraXConfig` objects.
CameraXConfig.Provider	An interface which can be implemented to provide the configuration for CameraX.
CancellationSignal	Static library support version of the framework's `CancellationSignal`.
CancellationSignal.OnCancelListener	Listens for cancellation.
CanvasComplicationFactory	Factory for creating a CanvasComplication.
CaptureRequestOptions	A bundle of Camera2 capture request options.
CaptureRequestOptions.Builder	Builder for creating `CaptureRequestOptions` instance.
CarAppApiLevels	API levels supported by this library.
CarAppExtender	Helper class to add car app extensions to notifications.
CarAppExtender.Builder	A builder of `CarAppExtender`.
CarAppPermission	Defines all constants for permissions that a car app can use.
CarAppService	The base class for implementing a car app that runs in the car.
CarColor	Represents a color to be used in a car app.
CarContext	The CarContext class is a `ContextWrapper` subclass accessible to your `CarAppService` and `Screen` instances, which provides access to car services such as the `ScreenManager` for managing the screen stack, the `AppManager` for general app-related functionality such as accessing a surface for drawing your navigation app's map, and the `NavigationManager` used by turn-by-turn navigation apps to communicate navigation metadata and other navigation-related events with the host.
CardView	A FrameLayout with a rounded corner background and shadow.
CarIcon	Represents an icon to be used in a car app.
CarIcon.Builder	A builder of `CarIcon`.
CarIconSpan	A span that replaces the text it is attached to with a `CarIcon` that is aligned with the surrounding text.
CarLocation	Represents a geographical location with a latitude and a longitude.
CarSpan	Base class for all span types allowed for a car app.
CarText	A model that represents text to display in the car screen.
CarText.Builder	A builder of `CarText`.
CarToast	A message to show to the user for a short period of time.
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.
ChangeImageTransform	This Transition captures an ImageView's matrix before and after the scene change and animates it during the transition.
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	A convenience class to access `TvContractCompat.Channels` entries in the system content provider.
Channel.Builder	The builder class that makes it easy to chain setters to create a `Channel` object.
ChannelLogoUtils	A utility class for conveniently storing and loading channel logos.
CheckBoxPreference	A `Preference` that provides checkbox widget functionality.
CheckedTextViewCompat	Helper for accessing `CheckedTextView`.
CheckResult	Denotes that the annotated method returns a result that it typically is an error to ignore.
ChecksSdkIntAtLeast	Denotes that the annotated method checks if the SDK_INT API level is at least the given value, and either returns it or executes the given lambda in that case (or if it's a field, has the value true).
CipherSuiteNotSupportedException	Thrown if trying to use a cipher suite which isn't supported.
CircularArray<E>	CircularArray is a generic circular array data structure that provides O(1) random read, O(1) prepend and O(1) append.
CircularIntArray	CircularIntArray is a circular integer array data structure that provides O(1) random read, O(1) prepend and O(1) append.
CircularProgressDrawable	Drawable that renders the animated indeterminate progress indicator in the Material design style without depending on API level 11.
CircularProgressLayout	`CircularProgressLayout` adds a circular countdown timer behind the view it contains, typically used to automatically confirm an operation after a short delay has elapsed.
CircularProgressLayout.OnTimerFinishedListener	Interface to implement for listening to `onTimerFinished(CircularProgressLayout)` event.
CircularPropagation	A propagation that varies with the distance to the epicenter of the Transition or center of the scene if no epicenter exists.
Class2BiometricAuthPrompt	An authentication prompt that requires the user to present a Class 2 biometric (e.g.
Class2BiometricAuthPrompt.Builder	Builder for a `Class2BiometricAuthPrompt` with configurable options.
Class2BiometricOrCredentialAuthPrompt	An authentication prompt that requires the user to present a Class 2 biometric (e.g.
Class2BiometricOrCredentialAuthPrompt.Builder	Builder for a `Class2BiometricOrCredentialAuthPrompt` with configurable options.
Class3BiometricAuthPrompt	An authentication prompt that requires the user to present a Class 3 biometric (e.g.
Class3BiometricAuthPrompt.Builder	Builder for a `Class3BiometricAuthPrompt` with configurable options.
Class3BiometricOrCredentialAuthPrompt	An authentication prompt that requires the user to present a Class 3 biometric (e.g.
Class3BiometricOrCredentialAuthPrompt.Builder	Builder for a `Class3BiometricOrCredentialAuthPrompt` with configurable options.
ClassPresenterSelector	A ClassPresenterSelector selects a `Presenter` based on the item's Java class.
ClickableSpan	A span that makes a section of text clickable.
CollapsibleActionView	This interface is deprecated. Use the platform-provided `CollapsibleActionView` interface.
ColorBuilders	Builders for color utilities for layout elements.
ColorBuilders.ColorProp	A property defining a color.
ColorBuilders.ColorProp.Builder	Builder for `ColorBuilders.ColorProp`
ColorFilterCache	Cache of `ColorFilter`s for a given color at different alpha levels.
ColorFilterDimmer	Helper class for applying a dim level to a View.
ColorInt	Denotes that the annotated element represents a packed color int, `AARRGGBB`.
ColorLong	Denotes that the annotated element represents a packed color long.
ColorOverlayDimmer	Helper class for assigning a dim color to Paint.
ColorRes	Denotes that an integer parameter, field or method return value is expected to be a color resource reference (e.g.
ColorUtils	A set of color-related utility methods, building upon those available in `Color`.
ColumnInfo	Allows specific customization about the column associated with this field.
ColumnInfo.Collate
ColumnInfo.SQLiteTypeAffinity	The SQLite column type constants that can be used in `ColumnInfo.typeAffinity()`
ComponentActivity	Base class for activities that enables composition of higher level components.
CompositeDrawable	Generic drawable class that can be composed of multiple children.
CompositeDrawable.ChildDrawable	Wrapper class holding a drawable object and `BoundsRule` to update drawable bounds when parent bound changes.
CompositePageTransformer	Allows for combining multiple `ViewPager2.PageTransformer` objects.
CompoundButtonCompat	Helper for accessing `CompoundButton`.
ConcatAdapter	An `RecyclerView.Adapter` implementation that presents the contents of multiple adapters in sequence.
ConcatAdapter.Config	The configuration object for a `ConcatAdapter`.
ConcatAdapter.Config.Builder	The builder for `ConcatAdapter.Config` class.
ConcatAdapter.Config.StableIdMode	Defines how `ConcatAdapter` handle stable ids (`RecyclerView.Adapter.hasStableIds()`).
Configuration	The Configuration object used to customize `WorkManager` upon initialization.
Configuration.Builder	A Builder for `Configuration`s.
Configuration.Provider	A class that can provide the `Configuration` for WorkManager and allow for on-demand initialization of WorkManager.
ConfigurationCompat	Helper class which allows access to properties of `Configuration` in a backward compatible fashion.
ConfigurationHelper	Helper class which allows access to properties of `Configuration` in a backward compatible fashion.
ConfirmationActivity	This Activity is used to display confirmation animations after the user completes an action on the wearable.
ConfirmationOverlay	Displays a full-screen confirmation animation with optional text and then hides it.
ConfirmationOverlay.OnAnimationFinishedListener	Interface for listeners to be notified when the `ConfirmationOverlay` animation has finished and its `View` has been removed.
ConfirmationOverlay.OverlayType	Types of animations to display in the overlay.
ConnectivityManagerCompat	Helper for accessing features in `ConnectivityManager`.
Constraints	A specification of the requirements that need to be met before a `WorkRequest` can run.
Constraints.Builder	A Builder for a `Constraints` object.
Consumer<T>	Compat version of `Consumer`
ContentInfoCompat	Holds all the relevant data for a request to `OnReceiveContentListener`.
ContentInfoCompat.Builder	Builder for `ContentInfoCompat`.
ContentLoadingProgressBar	ContentLoadingProgressBar implements a ProgressBar that waits a minimum time to be dismissed before showing.
ContentPager	`ContentPager` provides support for loading "paged" data on a background thread using the `ContentResolver` framework.
ContentPager.ContentCallback	Callback by which a client receives results of a query.
ContentPager.CursorDisposition
ContentPager.QueryRunner	Implementations of this interface provide the mechanism for execution of queries off the UI thread.
ContentPager.QueryRunner.Callback	Callback that receives a cursor once a query as been executed on the Runner.
ContentProviderCompat	Helper for accessing features in `ContentProvider` in a backwards compatible fashion.
ContentProviderWithCallbacks<T extends ContentProviderWithCallbacks>	Version of ContentProvider that can be used as a `CallbackReceiver`.
ContentRecommendation	The ContentRecommendation object encapsulates all application provided data for a single content recommendation item.
ContentRecommendation.Builder	Builder class for `ContentRecommendation` objects.
ContentRecommendation.ContentMaturity
ContentRecommendation.ContentPricing
ContentRecommendation.ContentStatus
ContentRecommendation.ContentType
ContentRecommendation.IntentData	Object used to encapsulate the data to be used to build the `PendingIntent` object associated with a given content recommendation, at the time this recommendation gets posted to the home Screen.
ContentRecommendation.IntentType
ContentResolverCompat	Helper for accessing features in `ContentResolver` in a backwards compatible fashion.
ContentView	Annotation that can be attached to a constructor with a single `LayoutRes` parameter to denote what layout the component intends to inflate and set as its content.
ContextAware	A `ContextAware` class is associated with a `Context` sometime after the class is instantiated.
ContextAwareHelper	Helper class for implementing `ContextAware`.
ContextCompat	Helper for accessing features in `Context`.
ContextThemeWrapper	A context wrapper that allows you to modify or replace the theme of the wrapped context.
ControlButtonPresenterSelector	Displays primary and secondary controls for a `PlaybackControlsRow`.
ConversationAction	Represents an 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 `ConversationActions.Message`
ConversationActions.Request	A request object for generating conversation action suggestions.
ConversationActions.Request.Builder	Builder object to construct the `ConversationActions.Request` object.
CoordinateTransform	This class represents the transform from one `OutputTransform` to another.
CoordinatorLayout	CoordinatorLayout is a super-powered `FrameLayout`.
CoordinatorLayout.AttachedBehavior	Defines the default attached `CoordinatorLayout.Behavior` of a `View` class When writing a custom view, implement this interface to return the default behavior when used as a direct child of an `CoordinatorLayout`.
CoordinatorLayout.Behavior<V extends View>	Interaction behavior plugin for child views of `CoordinatorLayout`.
CoordinatorLayout.DefaultBehavior	This @interface is deprecated. Use `CoordinatorLayout.AttachedBehavior` instead
CoordinatorLayout.LayoutParams	Parameters describing the desired layout for a child of a `CoordinatorLayout`.
CoordinatorLayout.SavedState
CountingTaskExecutorRule	A JUnit Test Rule that swaps the background executor used by the Architecture Components with a different one which counts the tasks as they are start and finish.
CredentialAuthPrompt	An authentication prompt that requires the user to present the screen lock credential (i.e.
CredentialAuthPrompt.Builder	Builder for a `CredentialAuthPrompt` with configurable options.
CursorAdapter	Static library support version of the framework's `CursorAdapter`.
CursorLoader	Static library support version of the framework's `CursorLoader`.
CursorMapper	Abstract class used to convert the current `Cursor` row to a single object.
CursorObjectAdapter	An `ObjectAdapter` implemented with a `Cursor`.
CursorWindowCompat	Helper for accessing features in `CursorWindow`
CurvedTextView	CurvedTextView is a component allowing developers to easily write curved text following the curvature of the largest circle that can be inscribed in the view.
CurvingLayoutCallback	An implementation of the `WearableLinearLayoutManager.LayoutCallback` aligning the children of the associated `WearableRecyclerView` along a pre-defined vertical curve.
CustomTabColorSchemeParams	Contains visual parameters of a Custom Tab that may depend on the color scheme.
CustomTabColorSchemeParams.Builder	Builder class for `CustomTabColorSchemeParams` objects.
CustomTabsCallback	A callback class for custom tabs client to get messages regarding events in their custom tabs.
CustomTabsClient	Class to communicate with a `CustomTabsService` and create `CustomTabsSession` from it.
CustomTabsIntent	Class holding the `Intent` and start bundle for a Custom Tabs Activity.
CustomTabsIntent.Builder	Builder class for `CustomTabsIntent` objects.
CustomTabsService	Abstract service class for implementing Custom Tabs related functionality.
CustomTabsService.Relation
CustomTabsService.Result
CustomTabsServiceConnection	Abstract `ServiceConnection` to use while binding to a `CustomTabsService`.
CustomTabsSession	A class to be used for Custom Tabs related communication.
CustomTabsSessionToken	Wrapper class that can be used as a unique identifier for a session.
CycleInterpolator	Repeats the animation for a specified number of cycles.

D

Dao	Marks the class as a Data Access Object.
Data	A persistable set of key/value pairs which are used as inputs and outputs for `ListenableWorker`s.
Data.Builder	A builder for `Data` objects.
Database	Marks a class as a RoomDatabase.
DatabaseConfiguration	Configuration class for a `RoomDatabase`.
DatabaseUtilsCompat	This class is deprecated. Use `DatabaseUtils` directly.
DatabaseView	Marks a class as an SQLite view.
DataSourceCallback	For supplying media data, implement this if your app has special requirements for the way media data is obtained.
DatePicker	`DatePicker` is a directly subclass of `Picker`.
DateTimeWithZone	A time with an associated time zone information.
DecelerateInterpolator	An interpolator where the rate of change starts out quickly and and then decelerates.
DefaultEmojiCompatConfig	The default config will use downloadable fonts to fetch the emoji compat font file.
DefaultItemAnimator	This implementation of `RecyclerView.ItemAnimator` provides basic animations on remove, add, and move events that happen to the items in a RecyclerView.
DefaultLifecycleObserver	Callback interface for listening to `LifecycleOwner` state changes.
DelegatingWorkerFactory	A `WorkerFactory` which delegates to other factories.
Delete	Marks a method in a `Dao` annotated class as a delete method.
DeleteColumn	Repeatable annotation declaring the deleted columns in the `AutoMigration.to()` version of an auto migration.
DeleteColumn.Entries	Container annotation for the repeatable annotation `DeleteColumn`.
DeleteTable	Repeatable annotation declaring the deleted tables in the `AutoMigration.to()` version of an auto migration.
DeleteTable.Entries	Container annotation for the repeatable annotation `DeleteTable`.
Destination	A class representing information related to a destination.
Destination.Builder	A builder of `Destination`.
DetailsFragment	This class is deprecated. use `DetailsSupportFragment`
DetailsFragmentBackgroundController	This class is deprecated. use `DetailsSupportFragmentBackgroundController`
DetailsOverviewLogoPresenter	Presenter that responsible to create a ImageView and bind to DetailsOverviewRow.
DetailsOverviewLogoPresenter.ViewHolder	ViewHolder for Logo view of DetailsOverviewRow.
DetailsOverviewRow	An overview `Row` for a details fragment.
DetailsOverviewRow.Listener	Listener for changes of DetailsOverviewRow.
DetailsOverviewRowPresenter	This class is deprecated. Use `FullWidthDetailsOverviewRowPresenter`
DetailsOverviewRowPresenter.ViewHolder	A ViewHolder for the DetailsOverviewRow.
DetailsParallax	Subclass of Parallax object that tracks overview row's top and bottom edge in DetailsFragment or DetailsSupportFragment.
DetailsSupportFragment	A fragment for creating Leanback details screens.
DetailsSupportFragmentBackgroundController	Controller for DetailsSupportFragment parallax background and embedded video play.
DeviceParametersBuilders	Builders for request messages used to fetch tiles and resources.
DeviceParametersBuilders.DeviceParameters	Parameters describing the device requesting a tile update.
DeviceParametersBuilders.DeviceParameters.Builder	Builder for `DeviceParametersBuilders.DeviceParameters`
DeviceWearableButtonsProvider	Default implementation of `WearableButtonsProvider`, that reads the button locations from the platform.
DialogCompat	Helper for accessing features in `Dialog` in a backwards compatible fashion.
DialogFragment	Static library support version of the framework's `DialogFragment`.
DialogPreference	A base class for `Preference`s that are dialog-based.
DialogPreference.TargetFragment	Interface for `PreferenceFragmentCompat`s to implement to allow `DialogPreference`s to find the preference that launched the dialog.
DiffCallback<Value>	Callback that informs `ArrayObjectAdapter` how to compute list upd