Added in API level 23

Summary: Constants | Inherited Constants | Ctors | Methods | Inherited Methods

ConnectionService

Kotlin |Java

public abstract class ConnectionService
extends Service

java.lang.Object
↳	android.content.Context
	↳	android.content.ContextWrapper
		↳	android.app.Service
			↳	android.telecom.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. Referred to as a system managed ConnectionService.
Are a standalone calling app and don't want their calls to be integrated into the built-in phone app. Referred to as a self managed ConnectionService.

Once implemented, the ConnectionService needs to take the following steps so that Telecom will bind to it:

1. Registration in AndroidManifest.xml

 <service android:name="com.example.package.MyConnectionService"
    android:label="@string/some_label_for_my_connection_service"
    android:permission="android.permission.BIND_TELECOM_CONNECTION_SERVICE">
  <intent-filter>
   <action android:name="android.telecom.ConnectionService" />
  </intent-filter>
 </service>

2. Registration of PhoneAccount with TelecomManager.
See PhoneAccount and TelecomManager.registerPhoneAccount for more information.

System managed ConnectionServices must be enabled by the user in the phone app settings before Telecom will bind to them. Self-managed ConnectionServices must declare the Manifest.permission.MANAGE_OWN_CALLS permission in their manifest before Telecom will bind to them.

Once registered and enabled by the user in the phone app settings or granted permission, telecom will bind to a ConnectionService implementation when it wants that ConnectionService to place a call or the service has indicated that is has an incoming call through TelecomManager.addNewIncomingCall(PhoneAccountHandle, Bundle). The ConnectionService can then expect a call to onCreateIncomingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest) or onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest) wherein it should provide a new instance of a Connection object. It is through this Connection object that telecom receives state updates and the ConnectionService receives call-commands such as answer, reject, hold and disconnect.

When there are no more live calls, telecom will unbind from the ConnectionService.

Self-Managed Connection Services

Kotlin |Java

A VoIP app can implement a ConnectionService to ensure that its calls are integrated into the Android platform. There are numerous benefits to using the Telecom APIs for a VoIP app:

Call concurrency is handled - the user is able to swap between calls in different apps and on the mobile network.
Simplified audio routing - the platform provides your app with a unified list of the audio routes which are available (e.g. Connection.onAvailableCallEndpointsChanged(List)) and a standardized way to switch audio routes (e.g. Connection.requestCallEndpointChange(CallEndpoint, Executor, OutcomeReceiver) ).
Bluetooth integration - your calls will be visible on and controllable via bluetooth devices (e.g. car head units and headsets).
Companion device integration - wearable devices such as watches which implement an InCallService can optionally subscribe to see self-managed calls. Similar to a bluetooth headunit, wearables will typically render your call using a generic call UX and provide the user with basic call controls such as hangup, answer, reject.
Automotive calling experiences - Android supports automotive optimized experiences which provides a means for calls to be controlled and viewed in an automobile; these experiences are capable of leveraging call metadata provided by your app.

Registering a Phone Account

Before your app can handle incoming or outgoing calls through Telecom it needs to register a PhoneAccount with Telecom indicating to the platform that your app is capable of calling.

Your app should create a new instance of PhoneAccount which meets the following requirements:

Has PhoneAccount.CAPABILITY_SELF_MANAGED (set using PhoneAccount.Builder.setCapabilities(int)). This indicates to Telecom that your app will report calls but that it provides a primary UI for the calls by itself.
Provide a unique identifier for the PhoneAccount via the PhoneAccountHandle.getId() attribute. As per the PhoneAccountHandle documentation, you should NOT use an identifier which contains PII or other sensitive information. A typical choice is a UUID.

Your app should register the new PhoneAccount with Telecom using TelecomManager.registerPhoneAccount(PhoneAccount). PhoneAccounts persist across reboot. You can use TelecomManager.getOwnSelfManagedPhoneAccounts() to confirm the PhoneAccount you registered. Your app should generally only register a single PhoneAccount.

Implementing ConnectionService

Your app uses TelecomManager.placeCall(Uri, Bundle) to start new outgoing calls and TelecomManager.addNewIncomingCall(PhoneAccountHandle, Bundle) to report new incoming calls. Calling these APIs causes the Telecom stack to bind to your app's ConnectionService implementation. Telecom will either inform your app that it cannot handle a call request at the current time (i.e. there could be an ongoing emergency call, which means your app is not allowed to handle calls at the current time), or it will ask your app to create a new instance of Connection to represent a call in your app. Your app should implement the following ConnectionService methods:

ConnectionService.onCreateOutgoingConnection(PhoneAccountHandle, ConnectionRequest) - called by Telecom to ask your app to make a new Connection to represent an outgoing call your app requested via TelecomManager.placeCall(Uri, Bundle).
<ConnectionService.onCreateOutgoingConnectionFailed(PhoneAccountHandle, ConnectionRequest) - called by Telecom to inform your app that a call it reported via TelecomManager.placeCall(Uri, Bundle) cannot be handled at this time. Your app should NOT place a call at the current time.
ConnectionService.onCreateIncomingConnection(PhoneAccountHandle, ConnectionRequest) - called by Telecom to ask your app to make a new Connection to represent an incoming call your app reported via TelecomManager.addNewIncomingCall(PhoneAccountHandle, Bundle).
ConnectionService.onCreateIncomingConnectionFailed(PhoneAccountHandle, ConnectionRequest) - called by Telecom to inform your app that an incoming call it reported via TelecomManager.addNewIncomingCall(PhoneAccountHandle, Bundle) cannot be handled at this time. Your app should NOT post a new incoming call notification and should silently reject the call.

Implementing a Connection

Your app should extend the Connection class to represent calls in your app. When you create new instances of your Connection, you should ensure the following properties are set on the new Connection instance returned by your ConnectionService:

Connection.setAddress(Uri, int) - the identifier for the other party. For apps that user phone numbers the Uri can be a PhoneAccount.SCHEME_TEL URI representing the phone number.
Connection.setCallerDisplayName(String, int) - the display name of the other party. This is what will be shown on Bluetooth devices and other calling surfaces such as wearable devices. This is particularly important for calls that do not use a phone number to identify the caller or called party.
Connection.setConnectionProperties(int) - ensure you set Connection.PROPERTY_SELF_MANAGED to identify to the platform that the call is handled by your app.
Connection.setConnectionCapabilities(int) - if your app supports making calls inactive (i.e. holding calls) you should get Connection.CAPABILITY_SUPPORT_HOLD and Connection.CAPABILITY_HOLD to indicate to the platform that you calls can potentially be held for concurrent calling scenarios.
Connection.setAudioModeIsVoip(boolean) - set to true to ensure that the platform knows your call is a VoIP call.
For newly created Connection instances, do NOT change the state of your call using Connection.setActive(), Connection.setOnHold() until the call is added to Telecom (ie you have returned it via ConnectionService.onCreateOutgoingConnection(PhoneAccountHandle, ConnectionRequest) or ConnectionService.onCreateIncomingConnection(PhoneAccountHandle, ConnectionRequest)).

How to Place Outgoing Calls

When your app wants to place an outgoing call it calls TelecomManager.placeCall(Uri, Bundle). You should specify a Uri to identify who the call is being placed to, and specify the PhoneAccountHandle associated with the PhoneAccount you registered for your app using TelecomManager.EXTRA_PHONE_ACCOUNT_HANDLE in the Bundle parameter.

Telecom will bind to your app's ConnectionService implementation and call either:

ConnectionService.onCreateOutgoingConnection(PhoneAccountHandle, ConnectionRequest) - the ConnectionRequest.getAddress() will match the address you specified when placing the call. You should return a new instance of your app's Connection class to represent the outgoing call.
ConnectionService.onCreateOutgoingConnectionFailed(PhoneAccountHandle, ConnectionRequest) - your app should not place the call at this time; the call should be cancelled and the user informed that the call cannot be placed.

New outgoing calls will start in a Connection.STATE_DIALING state. This state indicates that your app is in the process of connecting the call to the other party.

Once the other party answers the call (or it is set up successfully), your app should call Connection.setActive() to inform Telecom that the call is now active.

How to Add Incoming Calls

When your app receives an incoming call, it should call TelecomManager.addNewIncomingCall(PhoneAccountHandle, Bundle). Set the PhoneAccountHandle parameter to the PhoneAccountHandle associated with your app's PhoneAccount.

Telecom will bind to your app's ConnectionService implementation and call either:

ConnectionService.onCreateIncomingConnection(PhoneAccountHandle, ConnectionRequest) - You should return a new instance of your app's Connection class to represent the incoming call.
ConnectionService.onCreateIncomingConnectionFailed(PhoneAccountHandle, ConnectionRequest) - your app should not receive the call at this time; the call should be rejected silently; the user may be informed of a missed call.

New incoming calls will start with a Connection.STATE_RINGING state. This state indicates that your app has a new incoming call pending. Telecom will NOT play a ringtone or post a notification for your app. It is up to your app to post an incoming call notification with an associated ringtone. Telecom will call Connection.onShowIncomingCallUi() on the Connection when your app can post its incoming call notification. See the docs for more information on how to post the notification.

Your incoming call notification (or full screen UI) will typically have an "answer" and "decline" action which the user chooses. When your app receives the "answer" or "decline" PendingIntent, you should must call either Connection.setActive() to inform Telecom that the call was answered, or Connection.setDisconnected(DisconnectCause) to inform Telecom that the call was rejected. If the call was rejected, supply an instance of DisconnectCause with DisconnectCause.REJECTED, and then call Connection.destroy().

In addition to handling requests to answer or decline the call via notification actions, your app should also be implement the Connection.onAnswer(int) and Connection.onAnswer() methods on the Connection. These will be raised if the user answers your call via a Bluetooth device or another device like a wearable or automotive calling UX. In response, your app should call Connection.setActive() to inform Telecom that the call was answered.

Additionally, your app should implement Connection.onReject() to handle requests to reject the call which are raised via Bluetooth or other calling surfaces. Your app should call Connection.setDisconnected(DisconnectCause) and supply an instance of DisconnectCause with DisconnectCause.REJECTED in this case.

Ending Calls

When an ongoing active call (incoming or outgoing) has ended, your app is responsible for informing Telecom that the call ended.

Your app calls:

Connection.setDisconnected(DisconnectCause) - this informs Telecom that the call has terminated. You should provide a new instance of DisconnectCause with either DisconnectCause.LOCAL or DisconnectCause.REMOTE to indicate where the call disconnection took place. DisconnectCause.LOCAL indicates that the call terminated in your app on the current device (i.e. via user action), where DisconnectCause.REMOTE indicates that the call terminates on the remote device.
Connection.destroy() - this informs Telecom that your call instance can be cleaned up. You should always call this when you are finished with a call.

Similar to answering incoming calls, requests to disconnect your call may originate from outside your app. You can handle these by implementing Connection.onDisconnect(). Your app should call Connection.setDisconnected(DisconnectCause) with an instance of DisconnectCause and reason DisconnectCause.LOCAL to indicate to Telecom that your app has disconnected the call as requested based on the user's request.

Holding and Unholding Calls

When your app specifies Connection.CAPABILITY_SUPPORT_HOLD and Connection.CAPABILITY_HOLD on your Connection instance, it is telling Telecom that your calls can be placed into a suspended, or "held" state if required. If your app supports holding its calls, it will be possible for the user to switch between calls in your app and holdable calls in another app or on the mobile network. If your app does not support holding its calls, you may receive a request to disconnect the call from Telecom if the user opts to answer an incoming call in another app or on the mobile network; this ensures that the user can only be in one call at a time.

Your app is free to change a call between the held and active state using Connection.setOnHold() and Connection.setActive().

Your app may receive a request from Telecom to hold or unhold a call via Connection.onHold() and Connection.onUnhold(). Telecom can ask your app to hold or unhold its Connection either if the user requests this action through another calling surface such as Bluetooth, or if the user answers or switches to a call in a different app or on the mobile network.

When your app receives an Connection.onHold() it must call Connection.setOnHold() to inform Telecom that the call has been held successfully.

When your app receives an Connection.onUnhold() it must call Connection.setActive() to inform Telecom that the call has been resumed successfully.

Summary

Constants
`String`	`SERVICE_INTERFACE` The `Intent` that must be declared as handled by the service.

Inherited constants

From class android.app.Service

`int`	`START_CONTINUATION_MASK` Bits returned by `onStartCommand(Intent, int, int)` describing how to continue the service if it is killed.
`int`	`START_FLAG_REDELIVERY` This flag is set in `onStartCommand(Intent, int, int)` if the Intent is a re-delivery of a previously delivered intent, because the service had previously returned `START_REDELIVER_INTENT` but had been killed before calling `stopSelf(int)` for that Intent.
`int`	`START_FLAG_RETRY` This flag is set in `onStartCommand(Intent, int, int)` if the Intent is a retry because the original attempt never got to or returned from `onStartCommand(android.content.Intent, int, int)`.
`int`	`START_NOT_STICKY` Constant to return from `onStartCommand(Intent, int, int)`: if this service's process is killed while it is started (after returning from `onStartCommand(Intent, int, int)`), and there are no new start intents to deliver to it, then take the service out of the started state and don't recreate until a future explicit call to `Context.startService(Intent)`.
`int`	`START_REDELIVER_INTENT` Constant to return from `onStartCommand(Intent, int, int)`: if this service's process is killed while it is started (after returning from `onStartCommand(Intent, int, int)`), then it will be scheduled for a restart and the last delivered Intent re-delivered to it again via `onStartCommand(Intent, int, int)`.
`int`	`START_STICKY` Constant to return from `onStartCommand(Intent, int, int)`: if this service's process is killed while it is started (after returning from `onStartCommand(Intent, int, int)`), then leave it in the started state but don't retain this delivered intent.
`int`	`START_STICKY_COMPATIBILITY` Constant to return from `onStartCommand(Intent, int, int)`: compatibility version of `START_STICKY` that does not guarantee that `onStartCommand(Intent, int, int)` will be called again after being killed.
`int`	`STOP_FOREGROUND_DETACH` Selector for `stopForeground(int)`: if set, the notification previously supplied to `startForeground(int, Notification)` will be detached from the service's lifecycle.
`int`	`STOP_FOREGROUND_LEGACY` This constant was deprecated in API level 33. Use `STOP_FOREGROUND_DETACH` instead. The legacy behavior was inconsistent, leading to bugs around unpredictable results.
`int`	`STOP_FOREGROUND_REMOVE` Selector for `stopForeground(int)`: if supplied, the notification previously supplied to `startForeground(int, Notification)` will be cancelled and removed from display.

From class android.content.Context

`String`	`ACCESSIBILITY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `AccessibilityManager` for giving the user feedback for UI events through the registered event listeners.
`String`	`ACCOUNT_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `AccountManager` for receiving intents at a time of your choosing.
`String`	`ACTIVITY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `ActivityManager` for interacting with the global system state.
`String`	`ADVANCED_PROTECTION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve an `AdvancedProtectionManager`
`String`	`ALARM_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `AlarmManager` for receiving intents at a time of your choosing.
`String`	`APPWIDGET_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `AppWidgetManager` for accessing AppWidgets.
`String`	`APP_FUNCTION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve an `AppFunctionManager` for executing app functions.
`String`	`APP_OPS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `AppOpsManager` for tracking application operations on the device.
`String`	`APP_SEARCH_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve an `AppSearchManager` for indexing and querying app data managed by the system.
`String`	`AUDIO_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `AudioManager` for handling management of volume, ringer modes and audio routing.
`String`	`BATTERY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `BatteryManager` for managing battery state.
`int`	`BIND_ABOVE_CLIENT` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: indicates that the client application binding to this service considers the service to be more important than the app itself.
`int`	`BIND_ADJUST_WITH_ACTIVITY` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: If binding from an activity, allow the target service's process importance to be raised based on whether the activity is visible to the user, regardless whether another flag is used to reduce the amount that the client process's overall importance is used to impact it.
`int`	`BIND_ALLOW_ACTIVITY_STARTS` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: If binding from an app that is visible, the bound service is allowed to start an activity from background.
`int`	`BIND_ALLOW_OOM_MANAGEMENT` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: allow the process hosting the bound service to go through its normal memory management.
`int`	`BIND_AUTO_CREATE` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: automatically create the service as long as the binding exists.
`int`	`BIND_DEBUG_UNBIND` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: include debugging help for mismatched calls to unbind.
`int`	`BIND_EXTERNAL_SERVICE` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: The service being bound is an `isolated`, `external` service.
`long`	`BIND_EXTERNAL_SERVICE_LONG` Works in the same way as `BIND_EXTERNAL_SERVICE`, but it's defined as a `long` value that is compatible to `BindServiceFlags`.
`int`	`BIND_IMPORTANT` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: this service is very important to the client, so should be brought to the foreground process level when the client is.
`int`	`BIND_INCLUDE_CAPABILITIES` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: If binding from an app that has specific capabilities due to its foreground state such as an activity or foreground service, then this flag will allow the bound app to get the same capabilities, as long as it has the required permissions as well.
`int`	`BIND_NOT_FOREGROUND` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: don't allow this binding to raise the target service's process to the foreground scheduling priority.
`int`	`BIND_NOT_PERCEPTIBLE` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: If binding from an app that is visible or user-perceptible, lower the target service's importance to below the perceptible level.
`int`	`BIND_PACKAGE_ISOLATED_PROCESS` Flag for `bindIsolatedService(Intent, BindServiceFlags, String, Executor, ServiceConnection)`: Bind the service into a shared isolated process, but only with other isolated services from the same package that declare the same process name.
`int`	`BIND_SHARED_ISOLATED_PROCESS` Flag for `bindIsolatedService(Intent, BindServiceFlags, String, Executor, ServiceConnection)`: Bind the service into a shared isolated process.
`int`	`BIND_WAIVE_PRIORITY` Flag for `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`: don't impact the scheduling or memory management priority of the target service's hosting process.
`String`	`BIOMETRIC_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `BiometricManager` for handling biometric and PIN/pattern/password authentication.
`String`	`BLOB_STORE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `BlobStoreManager` for contributing and accessing data blobs from the blob store maintained by the system.
`String`	`BLUETOOTH_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `BluetoothManager` for using Bluetooth.
`String`	`BUGREPORT_SERVICE` Service to capture a bugreport.
`String`	`CAMERA_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `CameraManager` for interacting with camera devices.
`String`	`CAPTIONING_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `CaptioningManager` for obtaining captioning properties and listening for changes in captioning preferences.
`String`	`CARRIER_CONFIG_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `CarrierConfigManager` for reading carrier configuration values.
`String`	`CHOOSER_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `ChooserManager`.
`String`	`CLIPBOARD_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `ClipboardManager` for accessing and modifying the contents of the global clipboard.
`String`	`COMPANION_DEVICE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `CompanionDeviceManager` for managing companion devices
`String`	`CONNECTIVITY_DIAGNOSTICS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `ConnectivityDiagnosticsManager` for performing network connectivity diagnostics as well as receiving network connectivity information from the system.
`String`	`CONNECTIVITY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `ConnectivityManager` for handling management of network connections.
`String`	`CONSUMER_IR_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `ConsumerIrManager` for transmitting infrared signals from the device.
`String`	`CONTACT_KEYS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `E2eeContactKeysManager` to managing contact keys.
`int`	`CONTEXT_IGNORE_SECURITY` Flag for use with `createPackageContext(String, int)`: ignore any security restrictions on the Context being requested, allowing it to always be loaded.
`int`	`CONTEXT_INCLUDE_CODE` Flag for use with `createPackageContext(String, int)`: include the application code with the context.
`int`	`CONTEXT_RESTRICTED` Flag for use with `createPackageContext(String, int)`: a restricted context may disable specific features.
`String`	`CREDENTIAL_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `CredentialManager` to authenticate a user to your app.
`String`	`CROSS_PROFILE_APPS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `CrossProfileApps` for cross profile operations.
`int`	`DEVICE_ID_DEFAULT` The default device ID, which is the ID of the primary (non-virtual) device.
`int`	`DEVICE_ID_INVALID` Invalid device ID.
`String`	`DEVICE_LOCK_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `DeviceLockManager`.
`String`	`DEVICE_POLICY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `DevicePolicyManager` for working with global device policy management.
`String`	`DISPLAY_HASH_SERVICE` Use with `getSystemService(java.lang.String)` to access `DisplayHashManager` to handle display hashes.
`String`	`DISPLAY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `DisplayManager` for interacting with display devices.
`String`	`DOMAIN_VERIFICATION_SERVICE` Use with `getSystemService(java.lang.String)` to access `DomainVerificationManager` to retrieve approval and user state for declared web domains.
`String`	`DOWNLOAD_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `DownloadManager` for requesting HTTP downloads.
`String`	`DROPBOX_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `DropBoxManager` instance for recording diagnostic logs.
`String`	`EUICC_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `EuiccManager` to manage the device eUICC (embedded SIM).
`String`	`FILE_INTEGRITY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve an `FileIntegrityManager`.
`String`	`FINGERPRINT_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `FingerprintManager` for handling management of fingerprints.
`String`	`GAME_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `GameManager`.
`String`	`GRAMMATICAL_INFLECTION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `GrammaticalInflectionManager`.
`String`	`HARDWARE_PROPERTIES_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `HardwarePropertiesManager` for accessing the hardware properties service.
`String`	`HEALTHCONNECT_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `HealthConnectManager`.
`String`	`INPUT_METHOD_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `InputMethodManager` for accessing input methods.
`String`	`INPUT_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `InputManager` for interacting with input devices.
`String`	`IPSEC_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `IpSecManager` for encrypting Sockets or Networks with IPSec.
`String`	`JOB_SCHEDULER_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `JobScheduler` instance for managing occasional background tasks.
`String`	`KEYGUARD_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `KeyguardManager` for controlling keyguard.
`String`	`KEYSTORE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `KeyStoreManager` for accessing Android Keystore functions.
`String`	`LAUNCHER_APPS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `LauncherApps` for querying and monitoring launchable apps across profiles of a user.
`String`	`LAYOUT_INFLATER_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `LayoutInflater` for inflating layout resources in this context.
`String`	`LOCALE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `LocaleManager`.
`String`	`LOCATION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `LocationManager` for controlling location updates.
`String`	`MEDIA_COMMUNICATION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `MediaCommunicationManager` for managing `MediaSession2`.
`String`	`MEDIA_METRICS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `MediaMetricsManager` for interacting with media metrics on the device.
`String`	`MEDIA_PROJECTION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `MediaProjectionManager` instance for managing media projection sessions.
`String`	`MEDIA_QUALITY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `MediaQualityManager` for standardize picture and audio API parameters.
`String`	`MEDIA_ROUTER_SERVICE` Use with `getSystemService(Class)` to retrieve a `MediaRouter` for controlling and managing routing of media.
`String`	`MEDIA_SESSION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `MediaSessionManager` for managing media Sessions.
`String`	`MIDI_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `MidiManager` for accessing the MIDI service.
`int`	`MODE_APPEND` File creation mode: for use with `openFileOutput(String, int)`, if the file already exists then write data to the end of the existing file instead of erasing it.
`int`	`MODE_ENABLE_WRITE_AHEAD_LOGGING` Database open flag: when set, the database is opened with write-ahead logging enabled by default.
`int`	`MODE_MULTI_PROCESS` This constant was deprecated in API level 23. MODE_MULTI_PROCESS does not work reliably in some versions of Android, and furthermore does not provide any mechanism for reconciling concurrent modifications across processes. Applications should not attempt to use it. Instead, they should use an explicit cross-process data management approach such as `ContentProvider`.
`int`	`MODE_NO_LOCALIZED_COLLATORS` Database open flag: when set, the database is opened without support for localized collators.
`int`	`MODE_PRIVATE` File creation mode: the default mode, where the created file can only be accessed by the calling application (or all applications sharing the same user ID).
`int`	`MODE_WORLD_READABLE` This constant was deprecated in API level 17. Creating world-readable files is very dangerous, and likely to cause security holes in applications. It is strongly discouraged; instead, applications should use more formal mechanism for interactions such as `ContentProvider`, `BroadcastReceiver`, and `Service`. There are no guarantees that this access mode will remain on a file, such as when it goes through a backup and restore.
`int`	`MODE_WORLD_WRITEABLE` This constant was deprecated in API level 17. Creating world-writable files is very dangerous, and likely to cause security holes in applications. It is strongly discouraged; instead, applications should use more formal mechanism for interactions such as `ContentProvider`, `BroadcastReceiver`, and `Service`. There are no guarantees that this access mode will remain on a file, such as when it goes through a backup and restore.
`String`	`NETWORK_STATS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `NetworkStatsManager` for querying network usage stats.
`String`	`NFC_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `NfcManager` for using NFC.
`String`	`NOTIFICATION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `NotificationManager` for informing the user of background events.
`String`	`NSD_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `NsdManager` for handling management of network service discovery
`String`	`OVERLAY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `OverlayManager` for managing overlay packages.
`String`	`PEOPLE_SERVICE` Use with `getSystemService(java.lang.String)` to access a `PeopleManager` to interact with your published conversations.
`String`	`PERFORMANCE_HINT_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `PerformanceHintManager` for accessing the performance hinting service.
`String`	`PERSISTENT_DATA_BLOCK_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `PersistentDataBlockManager` instance for interacting with a storage device that lives across factory resets.
`String`	`POWER_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `PowerManager` for controlling power management, including "wake locks," which let you keep the device on while you're running long tasks.
`String`	`PRINT_SERVICE` `PrintManager` for printing and managing printers and print tasks.
`String`	`PROFILING_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve an `ProfilingManager`.
`int`	`RECEIVER_EXPORTED` Flag for `registerReceiver(BroadcastReceiver, IntentFilter)`: The receiver can receive broadcasts from other Apps.
`int`	`RECEIVER_NOT_EXPORTED` Flag for `registerReceiver(BroadcastReceiver, IntentFilter)`: The receiver cannot receive broadcasts from other Apps.
`int`	`RECEIVER_VISIBLE_TO_INSTANT_APPS` Flag for `registerReceiver(BroadcastReceiver, IntentFilter)`: The receiver can receive broadcasts from Instant Apps.
`String`	`RESTRICTIONS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `RestrictionsManager` for retrieving application restrictions and requesting permissions for restricted operations.
`String`	`ROLE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `RoleManager` for managing roles.
`String`	`SATELLITE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `SatelliteManager` for accessing satellite functionality.
`String`	`SEARCH_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `SearchManager` for handling searches.
`String`	`SECURITY_STATE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `SecurityStateManager` for accessing the security state manager service.
`String`	`SENSOR_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `SensorManager` for accessing sensors.
`String`	`SHORTCUT_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `ShortcutManager` for accessing the launcher shortcut service.
`String`	`STATUS_BAR_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `StatusBarManager` for interacting with the status bar and quick settings.
`String`	`STORAGE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `StorageManager` for accessing system storage functions.
`String`	`STORAGE_STATS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `StorageStatsManager` for accessing system storage statistics.
`String`	`SYSTEM_HEALTH_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `SystemHealthManager` for accessing system health (battery, power, memory, etc) metrics.
`String`	`TELECOM_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `TelecomManager` to manage telecom-related features of the device.
`String`	`TELEPHONY_IMS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve an `ImsManager`.
`String`	`TELEPHONY_PHONE_NUMBER_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `PhoneNumberManager` for parsing phone numbers.
`String`	`TELEPHONY_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `TelephonyManager` for handling management the telephony features of the device.
`String`	`TELEPHONY_SUBSCRIPTION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `SubscriptionManager` for handling management the telephony subscriptions of the device.
`String`	`TETHERING_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `TetheringManager` for managing tethering functions.
`String`	`TEXT_CLASSIFICATION_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `TextClassificationManager` for text classification services.
`String`	`TEXT_SERVICES_MANAGER_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `TextServicesManager` for accessing text services.
`String`	`TV_AD_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `TvAdManager` for interacting with TV client-side advertisement services on the device.
`String`	`TV_INPUT_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `TvInputManager` for interacting with TV inputs on the device.
`String`	`TV_INTERACTIVE_APP_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `TvInteractiveAppManager` for interacting with TV interactive applications on the device.
`String`	`UI_MODE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `UiModeManager` for controlling UI modes.
`String`	`USAGE_STATS_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `UsageStatsManager` for querying device usage stats.
`String`	`USB_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `UsbManager` for access to USB devices (as a USB host) and for controlling this device's behavior as a USB device.
`String`	`USER_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `UserManager` for managing users on devices that support multiple users.
`String`	`VIBRATOR_MANAGER_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `VibratorManager` for accessing the device vibrators, interacting with individual ones and playing synchronized effects on multiple vibrators.
`String`	`VIBRATOR_SERVICE` This constant was deprecated in API level 31. Use `VibratorManager` to retrieve the default system vibrator.
`String`	`VIRTUAL_DEVICE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `VirtualDeviceManager` for managing virtual devices.
`String`	`VPN_MANAGEMENT_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `VpnManager` to manage profiles for the platform built-in VPN.
`String`	`WALLPAPER_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a com.android.server.WallpaperService for accessing wallpapers.
`String`	`WIFI_AWARE_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `WifiAwareManager` for handling management of Wi-Fi Aware.
`String`	`WIFI_P2P_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `WifiP2pManager` for handling management of Wi-Fi peer-to-peer connections.
`String`	`WIFI_RTT_RANGING_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `WifiRttManager` for ranging devices with wifi.
`String`	`WIFI_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `WifiManager` for handling management of Wi-Fi access.
`String`	`WINDOW_SERVICE` Use with `getSystemService(java.lang.String)` to retrieve a `WindowManager` for accessing the system's window manager.

From interface android.content.ComponentCallbacks2

`int`	`TRIM_MEMORY_BACKGROUND` Level for `onTrimMemory(int)`: the process has gone on to the LRU list.
`int`	`TRIM_MEMORY_COMPLETE` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_MODERATE` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_RUNNING_CRITICAL` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_RUNNING_LOW` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_RUNNING_MODERATE` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_UI_HIDDEN` Level for `onTrimMemory(int)`: the process had been showing a user interface, and is no longer doing so.

Public constructors
`ConnectionService()`

Public methods
`final void`	`addConference(Conference conference)` Adds a new conference call.
`final void`	`addConferenceFromConnection(Conference conference, Connection originalConnection)` This is used to make a `Connection` become a `Conference` when the remote party merges calls together.
`final void`	`addExistingConnection(PhoneAccountHandle phoneAccountHandle, Connection connection)` Adds a connection created by the `ConnectionService` and informs telecom of the new connection.
`final void`	`conferenceRemoteConnections(RemoteConnection remoteConnection1, RemoteConnection remoteConnection2)` Indicates to the relevant `RemoteConnectionService` that the specified `RemoteConnection`s should be merged into a conference call.
`final void`	`connectionServiceFocusReleased()` Call to inform Telecom that your `ConnectionService` has released call resources (e.g microphone, camera).
`final RemoteConference`	`createRemoteIncomingConference(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Ask some other `ConnectionService` to create a `RemoteConference` given an incoming request.
`final RemoteConnection`	`createRemoteIncomingConnection(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Ask some other `ConnectionService` to create a `RemoteConnection` given an incoming request.
`final RemoteConference`	`createRemoteOutgoingConference(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Ask some other `ConnectionService` to create a `RemoteConference` given an outgoing request.
`final RemoteConnection`	`createRemoteOutgoingConnection(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Ask some other `ConnectionService` to create a `RemoteConnection` given an outgoing request.
`final Collection<Conference>`	`getAllConferences()` Returns all the active `Conference`s for which this `ConnectionService` has taken responsibility.
`final Collection<Connection>`	`getAllConnections()` Returns all the active `Connection`s for which this `ConnectionService` has taken responsibility.
`final IBinder`	`onBind(Intent intent)` Return the communication channel to the service.
`void`	`onConference(Connection connection1, Connection connection2)` Conference two specified connections.
`void`	`onConnectionServiceFocusGained()` Called when the `ConnectionService` has gained the call focus.
`void`	`onConnectionServiceFocusLost()` Called when the `ConnectionService` has lost the call focus.
`void`	`onCreateConferenceComplete(Conference conference)` Called by Telecom after the `Conference` returned by `onCreateIncomingConference(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)` or `onCreateOutgoingConference(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)` has been added to the `ConnectionService` and sent to Telecom.
`void`	`onCreateConnectionComplete(Connection connection)` Called by Telecom after the `Connection` returned by `onCreateIncomingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)` or `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)` has been added to the `ConnectionService` and sent to Telecom.
`Conference`	`onCreateIncomingConference(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Create a `Conference` given an incoming request.
`void`	`onCreateIncomingConferenceFailed(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Called by Telecom to inform the `ConnectionService` that its request to create a new incoming `Conference` was denied.
`Connection`	`onCreateIncomingConnection(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Create a `Connection` given an incoming request.
`void`	`onCreateIncomingConnectionFailed(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Called by Telecom to inform the `ConnectionService` that its request to create a new incoming `Connection` was denied.
`Connection`	`onCreateIncomingHandoverConnection(PhoneAccountHandle fromPhoneAccountHandle, ConnectionRequest request)` Called by Telecom to request that a `ConnectionService` creates an instance of an incoming handover `Connection`.
`Conference`	`onCreateOutgoingConference(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Create a `Conference` given an outgoing request.
`void`	`onCreateOutgoingConferenceFailed(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Called by Telecom to inform the `ConnectionService` that its request to create a new outgoing `Conference` was denied.
`Connection`	`onCreateOutgoingConnection(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Create a `Connection` given an outgoing request.
`void`	`onCreateOutgoingConnectionFailed(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request)` Called by Telecom to inform the `ConnectionService` that its request to create a new outgoing `Connection` was denied.
`Connection`	`onCreateOutgoingHandoverConnection(PhoneAccountHandle fromPhoneAccountHandle, ConnectionRequest request)` Called by Telecom to request that a `ConnectionService` creates an instance of an outgoing handover `Connection`.
`void`	`onHandoverFailed(ConnectionRequest request, int error)` Called by Telecom in response to a `TelecomManager#acceptHandover()` invocation which failed.
`void`	`onRemoteConferenceAdded(RemoteConference conference)` Indicates that a remote conference has been created for existing `RemoteConnection`s.
`void`	`onRemoteExistingConnectionAdded(RemoteConnection connection)` Called when an existing connection is added remotely.
`boolean`	`onUnbind(Intent intent)` Called when all clients have disconnected from a particular interface published by the service.

Inherited methods

From class


        
          android.app.Service

`void`	`attachBaseContext(Context newBase)` Set the base context for this ContextWrapper.
`void`	`dump(FileDescriptor fd, PrintWriter writer, String[] args)` Print the Service's state into the given stream.
`final Application`	`getApplication()` Return the application that owns this service.
`final int`	`getForegroundServiceType()` If the service has become a foreground service by calling `startForeground(int, android.app.Notification)` or `startForeground(int, android.app.Notification, int)`, `getForegroundServiceType()` returns the current foreground service type.
`abstract IBinder`	`onBind(Intent intent)` Return the communication channel to the service.
`void`	`onConfigurationChanged(Configuration newConfig)` Called by the system when the device configuration changes while your component is running.
`void`	`onCreate()` Called by the system when the service is first created.
`void`	`onDestroy()` Called by the system to notify a Service that it is no longer used and is being removed.
`void`	`onLowMemory()` This is called when the overall system is running low on memory, and actively running processes should trim their memory usage.
`void`	`onRebind(Intent intent)` Called when new clients have connected to the service, after it had previously been notified that all had disconnected in its `onUnbind(Intent)`.
`void`	`onStart(Intent intent, int startId)` This method was deprecated in API level 15. Implement `onStartCommand(android.content.Intent, int, int)` instead.
`int`	`onStartCommand(Intent intent, int flags, int startId)` Called by the system every time a client explicitly starts the service by calling `Context.startService(Intent)`, providing the arguments it supplied and a unique integer token representing the start request.
`void`	`onTaskRemoved(Intent rootIntent)` This is called if the service is currently running and the user has removed a task that comes from the service's application.
`void`	`onTimeout(int startId, int fgsType)` Callback called when a particular foreground service type has timed out.
`void`	`onTimeout(int startId)` Callback called on timeout for `ServiceInfo.FOREGROUND_SERVICE_TYPE_SHORT_SERVICE`.
`void`	`onTrimMemory(int level)` Called when the operating system has determined that it is a good time for a process to trim unneeded memory from its process.
`boolean`	`onUnbind(Intent intent)` Called when all clients have disconnected from a particular interface published by the service.
`final void`	`startForeground(int id, Notification notification)` If your service is started (running through `Context.startService(Intent)`), then also make this service run in the foreground, supplying the ongoing notification to be shown to the user while in this state.
`final void`	`startForeground(int id, Notification notification, int foregroundServiceType)` An overloaded version of `startForeground(int, android.app.Notification)` with additional foregroundServiceType parameter.
`final void`	`stopForeground(int notificationBehavior)` Remove this service from foreground state, allowing it to be killed if more memory is needed.
`final void`	`stopForeground(boolean removeNotification)` This method was deprecated in API level 33. call `stopForeground(int)` and pass either `STOP_FOREGROUND_REMOVE` or `STOP_FOREGROUND_DETACH` explicitly instead.
`final void`	`stopSelf()` Stop the service, if it was previously started.
`final void`	`stopSelf(int startId)` Old version of `stopSelfResult(int)` that doesn't return a result.
`final boolean`	`stopSelfResult(int startId)` Stop the service if the most recent time it was started was `startId`.

From class


        
          android.content.ContextWrapper

`void`	`attachBaseContext(Context base)` Set the base context for this ContextWrapper.
`boolean`	`bindIsolatedService(Intent service, int flags, String instanceName, Executor executor, ServiceConnection conn)` Variation of `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)` that, in the specific case of isolated services, allows the caller to generate multiple instances of a service from a single component declaration.
`boolean`	`bindService(Intent service, int flags, Executor executor, ServiceConnection conn)` Same as `bindService(Intent, ServiceConnection, int)` with executor to control ServiceConnection callbacks.
`boolean`	`bindService(Intent service, ServiceConnection conn, Context.BindServiceFlags flags)` See `bindService(android.content.Intent, android.content.ServiceConnection, int)` Call `BindServiceFlags.of(long)` to obtain a BindServiceFlags object.
`boolean`	`bindService(Intent service, ServiceConnection conn, int flags)` Connects to an application service, creating it if needed.
`boolean`	`bindService(Intent service, Context.BindServiceFlags flags, Executor executor, ServiceConnection conn)` See `bindService(android.content.Intent, int, java.util.concurrent.Executor, android.content.ServiceConnection)` Call `BindServiceFlags.of(long)` to obtain a BindServiceFlags object.
`int`	`checkCallingOrSelfPermission(String permission)` Determine whether the calling process of an IPC or you have been granted a particular permission.
`int`	`checkCallingOrSelfUriPermission(Uri uri, int modeFlags)` Determine whether the calling process of an IPC or you has been granted permission to access a specific URI.
`int[]`	`checkCallingOrSelfUriPermissions(List<Uri> uris, int modeFlags)` Determine whether the calling process of an IPC or you has been granted permission to access a list of URIs.
`int`	`checkCallingPermission(String permission)` Determine whether the calling process of an IPC you are handling has been granted a particular permission.
`int`	`checkCallingUriPermission(Uri uri, int modeFlags)` Determine whether the calling process and uid has been granted permission to access a specific URI.
`int[]`	`checkCallingUriPermissions(List<Uri> uris, int modeFlags)` Determine whether the calling process and uid has been granted permission to access a list of URIs.
`int`	`checkContentUriPermissionFull(Uri uri, int pid, int uid, int modeFlags)` Determine whether a particular process and uid has been granted permission to access a specific content URI.
`int`	`checkPermission(String permission, int pid, int uid)` Determine whether the given permission is allowed for a particular process and user ID running in the system.
`int`	`checkSelfPermission(String permission)` Determine whether you have been granted a particular permission.
`int`	`checkUriPermission(Uri uri, String readPermission, String writePermission, int pid, int uid, int modeFlags)` Check both a Uri and normal permission.
`int`	`checkUriPermission(Uri uri, int pid, int uid, int modeFlags)` Determine whether a particular process and uid has been granted permission to access a specific URI.
`int[]`	`checkUriPermissions(List<Uri> uris, int pid, int uid, int modeFlags)` Determine whether a particular process and uid has been granted permission to access a list of URIs.
`void`	`clearWallpaper()` This method is deprecated. Use `WallpaperManager.clear()` instead. This method requires the caller to hold the permission `Manifest.permission.SET_WALLPAPER`.
`Context`	`createAttributionContext(String attributionTag)` Return a new Context object for the current Context but attribute to a different tag.
`Context`	`createConfigurationContext(Configuration overrideConfiguration)` Return a new Context object for the current Context but whose resources are adjusted to match the given Configuration.
`Context`	`createContext(ContextParams contextParams)` Creates a context with specific properties and behaviors.
`Context`	`createDeviceContext(int deviceId)` Returns a new `Context` object from the current context but with device association given by the `deviceId`.
`Context`	`createDeviceProtectedStorageContext()` Return a new Context object for the current Context but whose storage APIs are backed by device-protected storage.
`Context`	`createDisplayContext(Display display)` Returns a new `Context` object from the current context but with resources adjusted to match the metrics of `display`.
`Context`	`createPackageContext(String packageName, int flags)` Return a new Context object for the given application name.
`Context`	`createWindowContext(int type, Bundle options)` Creates a Context for a non-activity window.
`Context`	`createWindowContext(Display display, int type, Bundle options)` Creates a `Context` for a non-`activity` window on the given `Display`.
`String[]`	`databaseList()` Returns an array of strings naming the private databases associated with this Context's application package.
`boolean`	`deleteDatabase(String name)` Delete an existing private SQLiteDatabase associated with this Context's application package.
`boolean`	`deleteFile(String name)` Delete the given private file associated with this Context's application package.
`boolean`	`deleteSharedPreferences(String name)` Delete an existing shared preferences file.
`void`	`enforceCallingOrSelfPermission(String permission, String message)` If neither you nor the calling process of an IPC you are handling has been granted a particular permission, throw a `SecurityException`.
`void`	`enforceCallingOrSelfUriPermission(Uri uri, int modeFlags, String message)` If the calling process of an IPC or you has not been granted permission to access a specific URI, throw `SecurityException`.
`void`	`enforceCallingPermission(String permission, String message)` If the calling process of an IPC you are handling has not been granted a particular permission, throw a `SecurityException`.
`void`	`enforceCallingUriPermission(Uri uri, int modeFlags, String message)` If the calling process and uid has not been granted permission to access a specific URI, throw `SecurityException`.
`void`	`enforcePermission(String permission, int pid, int uid, String message)` If the given permission is not allowed for a particular process and user ID running in the system, throw a `SecurityException`.
`void`	`enforceUriPermission(Uri uri, String readPermission, String writePermission, int pid, int uid, int modeFlags, String message)` Enforce both a Uri and normal permission.
`void`	`enforceUriPermission(Uri uri, int pid, int uid, int modeFlags, String message)` If a particular process and uid has not been granted permission to access a specific URI, throw `SecurityException`.
`String[]`	`fileList()` Returns an array of strings naming the private files associated with this Context's application package.
`Context`	`getApplicationContext()` Return the context of the single, global Application object of the current process.
`ApplicationInfo`	`getApplicationInfo()` Return the full application info for this context's package.
`AssetManager`	`getAssets()` Returns an AssetManager instance for the application's package.
`AttributionSource`	`getAttributionSource()`
`Context`	`getBaseContext()`
`File`	`getCacheDir()` Returns the absolute path to the application specific cache directory on the filesystem.
`ClassLoader`	`getClassLoader()` Return a class loader you can use to retrieve classes in this package.
`File`	`getCodeCacheDir()` Returns the absolute path to the application specific cache directory on the filesystem designed for storing cached code.
`ContentResolver`	`getContentResolver()` Return a ContentResolver instance for your application's package.
`File`	`getDataDir()` Returns the absolute path to the directory on the filesystem where all private files belonging to this app are stored.
`File`	`getDatabasePath(String name)` Returns the absolute path on the filesystem where a database created with `openOrCreateDatabase(String, int, CursorFactory)` is stored.
`int`	`getDeviceId()` Gets the device ID this context is associated with.
`File`	`getDir(String name, int mode)` Retrieve, creating if needed, a new directory in which the application can place its own custom data files.
`Display`	`getDisplay()` Get the display this context is associated with.
`File`	`getExternalCacheDir()` Returns absolute path to application-specific directory on the primary shared/external storage device where the application can place cache files it owns.
`File[]`	`getExternalCacheDirs()` Returns absolute paths to application-specific directories on all shared/external storage devices where the application can place cache files it owns.
`File`	`getExternalFilesDir(String type)` Returns the absolute path to the directory on the primary shared/external storage device where the application can place persistent files it owns.
`File[]`	`getExternalFilesDirs(String type)` Returns absolute paths to application-specific directories on all shared/external storage devices where the application can place persistent files it owns.
`File[]`	`getExternalMediaDirs()` This method is deprecated. These directories still exist and are scanned, but developers are encouraged to migrate to inserting content into a `MediaStore` collection directly, as any app can contribute new media to `MediaStore` with no permissions required, starting in `Build.VERSION_CODES.Q`.
`File`	`getFileStreamPath(String name)` Returns the absolute path on the filesystem where a file created with `openFileOutput(String, int)` is stored.
`File`	`getFilesDir()` Returns the absolute path to the directory on the filesystem where files created with `openFileOutput(String, int)` are stored.
`Executor`	`getMainExecutor()` Return an `Executor` that will run enqueued tasks on the main thread associated with this context.
`Looper`	`getMainLooper()` Return the Looper for the main thread of the current process.
`File`	`getNoBackupFilesDir()` Returns the absolute path to the directory on the filesystem similar to `getFilesDir()`.
`File`	`getObbDir()` Return the primary shared/external storage directory where this application's OBB files (if there are any) can be found.
`File[]`	`getObbDirs()` Returns absolute paths to application-specific directories on all shared/external storage devices where the application's OBB files (if there are any) can be found.
`String`	`getPackageCodePath()` Return the full path to this context's primary Android package.
`PackageManager`	`getPackageManager()` Return PackageManager instance to find global package information.
`String`	`getPackageName()` Return the name of this application's package.
`String`	`getPackageResourcePath()` Return the full path to this context's primary Android package.
`ContextParams`	`getParams()` Return the set of parameters which this Context was created with, if it was created via `createContext(android.content.ContextParams)`.
`Resources`	`getResources()` Returns a Resources instance for the application's package.
`SharedPreferences`	`getSharedPreferences(String name, int mode)` Retrieve and hold the contents of the preferences file 'name', returning a SharedPreferences through which you can retrieve and modify its values.
`Object`	`getSystemService(String name)` Return the handle to a system-level service by name.
`String`	`getSystemServiceName(Class<?> serviceClass)` Gets the name of the system-level service that is represented by the specified class.
`Resources.Theme`	`getTheme()` Return the Theme object associated with this Context.
`Drawable`	`getWallpaper()` This method is deprecated. Use `WallpaperManager.get()` instead.
`int`	`getWallpaperDesiredMinimumHeight()` This method is deprecated. Use `WallpaperManager.getDesiredMinimumHeight()` instead.
`int`	`getWallpaperDesiredMinimumWidth()` This method is deprecated. Use `WallpaperManager.getDesiredMinimumWidth()` instead.
`void`	`grantUriPermission(String toPackage, Uri uri, int modeFlags)` Grant permission to access a specific Uri to another package, regardless of whether that package has general permission to access the Uri's content provider.
`boolean`	`isDeviceProtectedStorage()` Indicates if the storage APIs of this Context are backed by device-protected storage.
`boolean`	`isRestricted()` Indicates whether this Context is restricted.
`boolean`	`moveDatabaseFrom(Context sourceContext, String name)` Move an existing database file from the given source storage context to this context.
`boolean`	`moveSharedPreferencesFrom(Context sourceContext, String name)` Move an existing shared preferences file from the given source storage context to this context.
`FileInputStream`	`openFileInput(String name)` Open a private file associated with this Context's application package for reading.
`FileOutputStream`	`openFileOutput(String name, int mode)` Open a private file associated with this Context's application package for writing.
`SQLiteDatabase`	`openOrCreateDatabase(String name, int mode, SQLiteDatabase.CursorFactory factory, DatabaseErrorHandler errorHandler)` Open a new private SQLiteDatabase associated with this Context's application package.
`SQLiteDatabase`	`openOrCreateDatabase(String name, int mode, SQLiteDatabase.CursorFactory factory)` Open a new private SQLiteDatabase associated with this Context's application package.
`Drawable`	`peekWallpaper()` This method is deprecated. Use `WallpaperManager.peek()` instead.
`void`	`registerComponentCallbacks(ComponentCallbacks callback)` Add a new `ComponentCallbacks` to the base application of the Context, which will be called at the same times as the ComponentCallbacks methods of activities and other components are called.
`void`	`registerDeviceIdChangeListener(Executor executor, IntConsumer listener)` Adds a new device ID changed listener to the `Context`, which will be called when the device association is changed by the system.
`Intent`	`registerReceiver(BroadcastReceiver receiver, IntentFilter filter)` Register a BroadcastReceiver to be run in the main activity thread.
`Intent`	`registerReceiver(BroadcastReceiver receiver, IntentFilter filter, int flags)` Register to receive intent broadcasts, with the receiver optionally being exposed to Instant Apps.
`Intent`	`registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String broadcastPermission, Handler scheduler, int flags)` Register to receive intent broadcasts, to run in the context of `scheduler`.
`Intent`	`registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String broadcastPermission, Handler scheduler)` Register to receive intent broadcasts, to run in the context of `scheduler`.
`void`	`removeStickyBroadcast(Intent intent)` This method is deprecated. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`void`	`removeStickyBroadcastAsUser(Intent intent, UserHandle user)` This method is deprecated. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`void`	`revokeSelfPermissionsOnKill(Collection<String> permissions)` Triggers the revocation of one or more permissions for the calling package.
`void`	`revokeUriPermission(Uri uri, int modeFlags)` Remove all permissions to access a particular content provider Uri that were previously added with `grantUriPermission(String, Uri, int)` or any other mechanism.
`void`	`revokeUriPermission(String targetPackage, Uri uri, int modeFlags)` Remove permissions to access a particular content provider Uri that were previously added with `grantUriPermission(String, Uri, int)` for a specific target package.
`void`	`sendBroadcast(Intent intent, String receiverPermission, Bundle options)` Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced.
`void`	`sendBroadcast(Intent intent, String receiverPermission)` Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced.
`void`	`sendBroadcast(Intent intent)` Broadcast the given intent to all interested BroadcastReceivers.
`void`	`sendBroadcastAsUser(Intent intent, UserHandle user)` Version of `sendBroadcast(android.content.Intent)` that allows you to specify the user the broadcast will be sent to.
`void`	`sendBroadcastAsUser(Intent intent, UserHandle user, String receiverPermission)` Version of `sendBroadcast(android.content.Intent, java.lang.String)` that allows you to specify the user the broadcast will be sent to.
`void`	`sendOrderedBroadcast(Intent intent, String receiverPermission, String receiverAppOp, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` Version of `sendOrderedBroadcast(android.content.Intent, java.lang.String, android.content.BroadcastReceiver, android.os.Handler, int, java.lang.String, android.os.Bundle)` that allows you to specify the App Op to enforce restrictions on which receivers the broadcast will be sent to.
`void`	`sendOrderedBroadcast(Intent intent, int initialCode, String receiverPermission, String receiverAppOp, BroadcastReceiver resultReceiver, Handler scheduler, String initialData, Bundle initialExtras, Bundle options)`
`void`	`sendOrderedBroadcast(Intent intent, String receiverPermission, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` Version of `sendBroadcast(android.content.Intent)` that allows you to receive data back from the broadcast.
`void`	`sendOrderedBroadcast(Intent intent, String receiverPermission, Bundle options)` Broadcast the given intent to all interested BroadcastReceivers, delivering them one at a time to allow more preferred receivers to consume the broadcast before it is delivered to less preferred receivers.
`void`	`sendOrderedBroadcast(Intent intent, String receiverPermission, Bundle options, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` Version of `sendBroadcast(android.content.Intent)` that allows you to receive data back from the broadcast.
`void`	`sendOrderedBroadcast(Intent intent, String receiverPermission)` Broadcast the given intent to all interested BroadcastReceivers, delivering them one at a time to allow more preferred receivers to consume the broadcast before it is delivered to less preferred receivers.
`void`	`sendOrderedBroadcastAsUser(Intent intent, UserHandle user, String receiverPermission, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` Version of `sendOrderedBroadcast(android.content.Intent, java.lang.String, android.content.BroadcastReceiver, android.os.Handler, int, java.lang.String, android.os.Bundle)` that allows you to specify the user the broadcast will be sent to.
`void`	`sendStickyBroadcast(Intent intent)` This method is deprecated. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`void`	`sendStickyBroadcast(Intent intent, Bundle options)` This method is deprecated. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`void`	`sendStickyBroadcastAsUser(Intent intent, UserHandle user)` This method is deprecated. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`void`	`sendStickyOrderedBroadcast(Intent intent, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` This method is deprecated. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`void`	`sendStickyOrderedBroadcastAsUser(Intent intent, UserHandle user, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` This method is deprecated. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`void`	`setTheme(int resid)` Set the base theme for this context.
`void`	`setWallpaper(Bitmap bitmap)` This method is deprecated. Use `WallpaperManager.set()` instead. This method requires the caller to hold the permission `Manifest.permission.SET_WALLPAPER`.
`void`	`setWallpaper(InputStream data)` This method is deprecated. Use `WallpaperManager.set()` instead. This method requires the caller to hold the permission `Manifest.permission.SET_WALLPAPER`.
`void`	`startActivities(Intent[] intents, Bundle options)` Launch multiple new activities.
`void`	`startActivities(Intent[] intents)` Same as `startActivities(android.content.Intent[], android.os.Bundle)` with no options specified.
`void`	`startActivity(Intent intent)` Same as `startActivity(android.content.Intent, android.os.Bundle)` with no options specified.
`void`	`startActivity(Intent intent, Bundle options)` Launch a new activity.
`ComponentName`	`startForegroundService(Intent service)` Similar to `startService(android.content.Intent)`, but with an implicit promise that the Service will call `startForeground(int, android.app.Notification)` once it begins running.
`boolean`	`startInstrumentation(ComponentName className, String profileFile, Bundle arguments)` Start executing an `Instrumentation` class.
`void`	`startIntentSender(IntentSender intent, Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags)` Same as `startIntentSender(android.content.IntentSender, android.content.Intent, int, int, int, android.os.Bundle)` with no options specified.
`void`	`startIntentSender(IntentSender intent, Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags, Bundle options)` Like `startActivity(android.content.Intent, android.os.Bundle)`, but taking a IntentSender to start.
`ComponentName`	`startService(Intent service)` Request that a given application service be started.
`boolean`	`stopService(Intent name)` Request that a given application service be stopped.
`void`	`unbindService(ServiceConnection conn)` Disconnect from an application service.
`void`	`unregisterComponentCallbacks(ComponentCallbacks callback)` Remove a `ComponentCallbacks` object that was previously registered with `registerComponentCallbacks(android.content.ComponentCallbacks)`.
`void`	`unregisterDeviceIdChangeListener(IntConsumer listener)` Removes a device ID changed listener from the Context.
`void`	`unregisterReceiver(BroadcastReceiver receiver)` Unregister a previously registered BroadcastReceiver.
`void`	`updateServiceGroup(ServiceConnection conn, int group, int importance)` For a service previously bound with `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)` or a related method, change how the system manages that service's process in relation to other processes.

From class


        
          android.content.Context

`boolean`	`bindIsolatedService(Intent service, int flags, String instanceName, Executor executor, ServiceConnection conn)` Variation of `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)` that, in the specific case of isolated services, allows the caller to generate multiple instances of a service from a single component declaration.
`boolean`	`bindIsolatedService(Intent service, Context.BindServiceFlags flags, String instanceName, Executor executor, ServiceConnection conn)` See `bindIsolatedService(android.content.Intent, int, java.lang.String, java.util.concurrent.Executor, android.content.ServiceConnection)` Call `BindServiceFlags.of(long)` to obtain a BindServiceFlags object.
`boolean`	`bindService(Intent service, int flags, Executor executor, ServiceConnection conn)` Same as `bindService(Intent, ServiceConnection, int)` with executor to control ServiceConnection callbacks.
`boolean`	`bindService(Intent service, ServiceConnection conn, Context.BindServiceFlags flags)` See `bindService(android.content.Intent, android.content.ServiceConnection, int)` Call `BindServiceFlags.of(long)` to obtain a BindServiceFlags object.
`abstract boolean`	`bindService(Intent service, ServiceConnection conn, int flags)` Connects to an application service, creating it if needed.
`boolean`	`bindService(Intent service, Context.BindServiceFlags flags, Executor executor, ServiceConnection conn)` See `bindService(android.content.Intent, int, java.util.concurrent.Executor, android.content.ServiceConnection)` Call `BindServiceFlags.of(long)` to obtain a BindServiceFlags object.
`boolean`	`bindServiceAsUser(Intent service, ServiceConnection conn, int flags, UserHandle user)` Binds to a service in the given `user` in the same manner as `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)`.
`boolean`	`bindServiceAsUser(Intent service, ServiceConnection conn, Context.BindServiceFlags flags, UserHandle user)` See `bindServiceAsUser(android.content.Intent, android.content.ServiceConnection, int, android.os.UserHandle)` Call `BindServiceFlags.of(long)` to obtain a BindServiceFlags object.
`abstract int`	`checkCallingOrSelfPermission(String permission)` Determine whether the calling process of an IPC or you have been granted a particular permission.
`abstract int`	`checkCallingOrSelfUriPermission(Uri uri, int modeFlags)` Determine whether the calling process of an IPC or you has been granted permission to access a specific URI.
`int[]`	`checkCallingOrSelfUriPermissions(List<Uri> uris, int modeFlags)` Determine whether the calling process of an IPC or you has been granted permission to access a list of URIs.
`abstract int`	`checkCallingPermission(String permission)` Determine whether the calling process of an IPC you are handling has been granted a particular permission.
`abstract int`	`checkCallingUriPermission(Uri uri, int modeFlags)` Determine whether the calling process and uid has been granted permission to access a specific URI.
`int[]`	`checkCallingUriPermissions(List<Uri> uris, int modeFlags)` Determine whether the calling process and uid has been granted permission to access a list of URIs.
`int`	`checkContentUriPermissionFull(Uri uri, int pid, int uid, int modeFlags)` Determine whether a particular process and uid has been granted permission to access a specific content URI.
`abstract int`	`checkPermission(String permission, int pid, int uid)` Determine whether the given permission is allowed for a particular process and user ID running in the system.
`abstract int`	`checkSelfPermission(String permission)` Determine whether you have been granted a particular permission.
`abstract int`	`checkUriPermission(Uri uri, String readPermission, String writePermission, int pid, int uid, int modeFlags)` Check both a Uri and normal permission.
`abstract int`	`checkUriPermission(Uri uri, int pid, int uid, int modeFlags)` Determine whether a particular process and uid has been granted permission to access a specific URI.
`int[]`	`checkUriPermissions(List<Uri> uris, int pid, int uid, int modeFlags)` Determine whether a particular process and uid has been granted permission to access a list of URIs.
`abstract void`	`clearWallpaper()` This method was deprecated in API level 15. Use `WallpaperManager.clear()` instead. This method requires the caller to hold the permission `Manifest.permission.SET_WALLPAPER`.
`Context`	`createAttributionContext(String attributionTag)` Return a new Context object for the current Context but attribute to a different tag.
`abstract Context`	`createConfigurationContext(Configuration overrideConfiguration)` Return a new Context object for the current Context but whose resources are adjusted to match the given Configuration.
`Context`	`createContext(ContextParams contextParams)` Creates a context with specific properties and behaviors.
`abstract Context`	`createContextForSplit(String splitName)` Return a new Context object for the given split name.
`Context`	`createDeviceContext(int deviceId)` Returns a new `Context` object from the current context but with device association given by the `deviceId`.
`abstract Context`	`createDeviceProtectedStorageContext()` Return a new Context object for the current Context but whose storage APIs are backed by device-protected storage.
`abstract Context`	`createDisplayContext(Display display)` Returns a new `Context` object from the current context but with resources adjusted to match the metrics of `display`.
`abstract Context`	`createPackageContext(String packageName, int flags)` Return a new Context object for the given application name.
`Context`	`createWindowContext(int type, Bundle options)` Creates a Context for a non-activity window.
`Context`	`createWindowContext(Display display, int type, Bundle options)` Creates a `Context` for a non-`activity` window on the given `Display`.
`abstract String[]`	`databaseList()` Returns an array of strings naming the private databases associated with this Context's application package.
`abstract boolean`	`deleteDatabase(String name)` Delete an existing private SQLiteDatabase associated with this Context's application package.
`abstract boolean`	`deleteFile(String name)` Delete the given private file associated with this Context's application package.
`abstract boolean`	`deleteSharedPreferences(String name)` Delete an existing shared preferences file.
`abstract void`	`enforceCallingOrSelfPermission(String permission, String message)` If neither you nor the calling process of an IPC you are handling has been granted a particular permission, throw a `SecurityException`.
`abstract void`	`enforceCallingOrSelfUriPermission(Uri uri, int modeFlags, String message)` If the calling process of an IPC or you has not been granted permission to access a specific URI, throw `SecurityException`.
`abstract void`	`enforceCallingPermission(String permission, String message)` If the calling process of an IPC you are handling has not been granted a particular permission, throw a `SecurityException`.
`abstract void`	`enforceCallingUriPermission(Uri uri, int modeFlags, String message)` If the calling process and uid has not been granted permission to access a specific URI, throw `SecurityException`.
`abstract void`	`enforcePermission(String permission, int pid, int uid, String message)` If the given permission is not allowed for a particular process and user ID running in the system, throw a `SecurityException`.
`abstract void`	`enforceUriPermission(Uri uri, String readPermission, String writePermission, int pid, int uid, int modeFlags, String message)` Enforce both a Uri and normal permission.
`abstract void`	`enforceUriPermission(Uri uri, int pid, int uid, int modeFlags, String message)` If a particular process and uid has not been granted permission to access a specific URI, throw `SecurityException`.
`abstract String[]`	`fileList()` Returns an array of strings naming the private files associated with this Context's application package.
`abstract Context`	`getApplicationContext()` Return the context of the single, global Application object of the current process.
`abstract ApplicationInfo`	`getApplicationInfo()` Return the full application info for this context's package.
`abstract AssetManager`	`getAssets()` Returns an AssetManager instance for the application's package.
`AttributionSource`	`getAttributionSource()`
`String`	`getAttributionTag()` Attribution can be used in complex apps to logically separate parts of the app.
`abstract File`	`getCacheDir()` Returns the absolute path to the application specific cache directory on the filesystem.
`abstract ClassLoader`	`getClassLoader()` Return a class loader you can use to retrieve classes in this package.
`abstract File`	`getCodeCacheDir()` Returns the absolute path to the application specific cache directory on the filesystem designed for storing cached code.
`final int`	`getColor(int id)` Returns a color associated with a particular resource ID and styled for the current theme.
`final ColorStateList`	`getColorStateList(int id)` Returns a color state list associated with a particular resource ID and styled for the current theme.
`abstract ContentResolver`	`getContentResolver()` Return a ContentResolver instance for your application's package.
`abstract File`	`getDataDir()` Returns the absolute path to the directory on the filesystem where all private files belonging to this app are stored.
`abstract File`	`getDatabasePath(String name)` Returns the absolute path on the filesystem where a database created with `openOrCreateDatabase(String, int, CursorFactory)` is stored.
`int`	`getDeviceId()` Gets the device ID this context is associated with.
`abstract File`	`getDir(String name, int mode)` Retrieve, creating if needed, a new directory in which the application can place its own custom data files.
`Display`	`getDisplay()` Get the display this context is associated with.
`final Drawable`	`getDrawable(int id)` Returns a drawable object associated with a particular resource ID and styled for the current theme.
`abstract File`	`getExternalCacheDir()` Returns absolute path to application-specific directory on the primary shared/external storage device where the application can place cache files it owns.
`abstract File[]`	`getExternalCacheDirs()` Returns absolute paths to application-specific directories on all shared/external storage devices where the application can place cache files it owns.
`abstract File`	`getExternalFilesDir(String type)` Returns the absolute path to the directory on the primary shared/external storage device where the application can place persistent files it owns.
`abstract File[]`	`getExternalFilesDirs(String type)` Returns absolute paths to application-specific directories on all shared/external storage devices where the application can place persistent files it owns.
`abstract File[]`	`getExternalMediaDirs()` This method was deprecated in API level 30. These directories still exist and are scanned, but developers are encouraged to migrate to inserting content into a `MediaStore` collection directly, as any app can contribute new media to `MediaStore` with no permissions required, starting in `Build.VERSION_CODES.Q`.
`abstract File`	`getFileStreamPath(String name)` Returns the absolute path on the filesystem where a file created with `openFileOutput(String, int)` is stored.
`abstract File`	`getFilesDir()` Returns the absolute path to the directory on the filesystem where files created with `openFileOutput(String, int)` are stored.
`Executor`	`getMainExecutor()` Return an `Executor` that will run enqueued tasks on the main thread associated with this context.
`abstract Looper`	`getMainLooper()` Return the Looper for the main thread of the current process.
`abstract File`	`getNoBackupFilesDir()` Returns the absolute path to the directory on the filesystem similar to `getFilesDir()`.
`abstract File`	`getObbDir()` Return the primary shared/external storage directory where this application's OBB files (if there are any) can be found.
`abstract File[]`	`getObbDirs()` Returns absolute paths to application-specific directories on all shared/external storage devices where the application's OBB files (if there are any) can be found.
`String`	`getOpPackageName()` Return the package name that should be used for `AppOpsManager` calls from this context, so that app ops manager's uid verification will work with the name.
`abstract String`	`getPackageCodePath()` Return the full path to this context's primary Android package.
`abstract PackageManager`	`getPackageManager()` Return PackageManager instance to find global package information.
`abstract String`	`getPackageName()` Return the name of this application's package.
`abstract String`	`getPackageResourcePath()` Return the full path to this context's primary Android package.
`ContextParams`	`getParams()` Return the set of parameters which this Context was created with, if it was created via `createContext(android.content.ContextParams)`.
`abstract Resources`	`getResources()` Returns a Resources instance for the application's package.
`abstract SharedPreferences`	`getSharedPreferences(String name, int mode)` Retrieve and hold the contents of the preferences file 'name', returning a SharedPreferences through which you can retrieve and modify its values.
`final String`	`getString(int resId)` Returns a localized string from the application's package's default string table.
`final String`	`getString(int resId, Object... formatArgs)` Returns a localized formatted string from the application's package's default string table, substituting the format arguments as defined in `Formatter` and `String.format(String, Object)`.
`final <T> T`	`getSystemService(Class<T> serviceClass)` Return the handle to a system-level service by class.
`abstract Object`	`getSystemService(String name)` Return the handle to a system-level service by name.
`abstract String`	`getSystemServiceName(Class<?> serviceClass)` Gets the name of the system-level service that is represented by the specified class.
`final CharSequence`	`getText(int resId)` Return a localized, styled CharSequence from the application's package's default string table.
`abstract Resources.Theme`	`getTheme()` Return the Theme object associated with this Context.
`abstract Drawable`	`getWallpaper()` This method was deprecated in API level 15. Use `WallpaperManager.get()` instead.
`abstract int`	`getWallpaperDesiredMinimumHeight()` This method was deprecated in API level 15. Use `WallpaperManager.getDesiredMinimumHeight()` instead.
`abstract int`	`getWallpaperDesiredMinimumWidth()` This method was deprecated in API level 15. Use `WallpaperManager.getDesiredMinimumWidth()` instead.
`abstract void`	`grantUriPermission(String toPackage, Uri uri, int modeFlags)` Grant permission to access a specific Uri to another package, regardless of whether that package has general permission to access the Uri's content provider.
`abstract boolean`	`isDeviceProtectedStorage()` Indicates if the storage APIs of this Context are backed by device-protected storage.
`boolean`	`isRestricted()` Indicates whether this Context is restricted.
`boolean`	`isUiContext()` Returns `true` if the context is a UI context which can access UI components such as `WindowManager`, `LayoutInflater` or `WallpaperManager`.
`abstract boolean`	`moveDatabaseFrom(Context sourceContext, String name)` Move an existing database file from the given source storage context to this context.
`abstract boolean`	`moveSharedPreferencesFrom(Context sourceContext, String name)` Move an existing shared preferences file from the given source storage context to this context.
`final TypedArray`	`obtainStyledAttributes(AttributeSet set, int[] attrs)` Retrieve styled attribute information in this Context's theme.
`final TypedArray`	`obtainStyledAttributes(AttributeSet set, int[] attrs, int defStyleAttr, int defStyleRes)` Retrieve styled attribute information in this Context's theme.
`final TypedArray`	`obtainStyledAttributes(int resid, int[] attrs)` Retrieve styled attribute information in this Context's theme.
`final TypedArray`	`obtainStyledAttributes(int[] attrs)` Retrieve styled attribute information in this Context's theme.
`abstract FileInputStream`	`openFileInput(String name)` Open a private file associated with this Context's application package for reading.
`abstract FileOutputStream`	`openFileOutput(String name, int mode)` Open a private file associated with this Context's application package for writing.
`abstract SQLiteDatabase`	`openOrCreateDatabase(String name, int mode, SQLiteDatabase.CursorFactory factory, DatabaseErrorHandler errorHandler)` Open a new private SQLiteDatabase associated with this Context's application package.
`abstract SQLiteDatabase`	`openOrCreateDatabase(String name, int mode, SQLiteDatabase.CursorFactory factory)` Open a new private SQLiteDatabase associated with this Context's application package.
`abstract Drawable`	`peekWallpaper()` This method was deprecated in API level 15. Use `WallpaperManager.peek()` instead.
`void`	`registerComponentCallbacks(ComponentCallbacks callback)` Add a new `ComponentCallbacks` to the base application of the Context, which will be called at the same times as the ComponentCallbacks methods of activities and other components are called.
`void`	`registerDeviceIdChangeListener(Executor executor, IntConsumer listener)` Adds a new device ID changed listener to the `Context`, which will be called when the device association is changed by the system.
`abstract Intent`	`registerReceiver(BroadcastReceiver receiver, IntentFilter filter)` Register a BroadcastReceiver to be run in the main activity thread.
`abstract Intent`	`registerReceiver(BroadcastReceiver receiver, IntentFilter filter, int flags)` Register to receive intent broadcasts, with the receiver optionally being exposed to Instant Apps.
`abstract Intent`	`registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String broadcastPermission, Handler scheduler, int flags)` Register to receive intent broadcasts, to run in the context of `scheduler`.
`abstract Intent`	`registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String broadcastPermission, Handler scheduler)` Register to receive intent broadcasts, to run in the context of `scheduler`.
`abstract void`	`removeStickyBroadcast(Intent intent)` This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`abstract void`	`removeStickyBroadcastAsUser(Intent intent, UserHandle user)` This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`void`	`revokeSelfPermissionOnKill(String permName)` Triggers the asynchronous revocation of a runtime permission.
`void`	`revokeSelfPermissionsOnKill(Collection<String> permissions)` Triggers the revocation of one or more permissions for the calling package.
`abstract void`	`revokeUriPermission(Uri uri, int modeFlags)` Remove all permissions to access a particular content provider Uri that were previously added with `grantUriPermission(String, Uri, int)` or any other mechanism.
`abstract void`	`revokeUriPermission(String toPackage, Uri uri, int modeFlags)` Remove permissions to access a particular content provider Uri that were previously added with `grantUriPermission(String, Uri, int)` for a specific target package.
`void`	`sendBroadcast(Intent intent, String receiverPermission, Bundle options)` Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced.
`abstract void`	`sendBroadcast(Intent intent, String receiverPermission)` Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced.
`abstract void`	`sendBroadcast(Intent intent)` Broadcast the given intent to all interested BroadcastReceivers.
`abstract void`	`sendBroadcastAsUser(Intent intent, UserHandle user)` Version of `sendBroadcast(android.content.Intent)` that allows you to specify the user the broadcast will be sent to.
`abstract void`	`sendBroadcastAsUser(Intent intent, UserHandle user, String receiverPermission)` Version of `sendBroadcast(android.content.Intent, java.lang.String)` that allows you to specify the user the broadcast will be sent to.
`void`	`sendBroadcastWithMultiplePermissions(Intent intent, String[] receiverPermissions)` Broadcast the given intent to all interested BroadcastReceivers, allowing an array of required permissions to be enforced.
`void`	`sendOrderedBroadcast(Intent intent, String receiverPermission, String receiverAppOp, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` Version of `sendOrderedBroadcast(android.content.Intent, java.lang.String, android.content.BroadcastReceiver, android.os.Handler, int, java.lang.String, android.os.Bundle)` that allows you to specify the App Op to enforce restrictions on which receivers the broadcast will be sent to.
`abstract void`	`sendOrderedBroadcast(Intent intent, String receiverPermission, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` Version of `sendBroadcast(android.content.Intent)` that allows you to receive data back from the broadcast.
`void`	`sendOrderedBroadcast(Intent intent, String receiverPermission, Bundle options)` Broadcast the given intent to all interested BroadcastReceivers, delivering them one at a time to allow more preferred receivers to consume the broadcast before it is delivered to less preferred receivers.
`void`	`sendOrderedBroadcast(Intent intent, String receiverPermission, Bundle options, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` Version of `sendBroadcast(android.content.Intent)` that allows you to receive data back from the broadcast.
`abstract void`	`sendOrderedBroadcast(Intent intent, String receiverPermission)` Broadcast the given intent to all interested BroadcastReceivers, delivering them one at a time to allow more preferred receivers to consume the broadcast before it is delivered to less preferred receivers.
`abstract void`	`sendOrderedBroadcastAsUser(Intent intent, UserHandle user, String receiverPermission, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` Version of `sendOrderedBroadcast(android.content.Intent, java.lang.String, android.content.BroadcastReceiver, android.os.Handler, int, java.lang.String, android.os.Bundle)` that allows you to specify the user the broadcast will be sent to.
`abstract void`	`sendStickyBroadcast(Intent intent)` This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`void`	`sendStickyBroadcast(Intent intent, Bundle options)` This method was deprecated in API level 31. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`abstract void`	`sendStickyBroadcastAsUser(Intent intent, UserHandle user)` This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`abstract void`	`sendStickyOrderedBroadcast(Intent intent, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`abstract void`	`sendStickyOrderedBroadcastAsUser(Intent intent, UserHandle user, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras)` This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
`abstract void`	`setTheme(int resid)` Set the base theme for this context.
`abstract void`	`setWallpaper(Bitmap bitmap)` This method was deprecated in API level 15. Use `WallpaperManager.set()` instead. This method requires the caller to hold the permission `Manifest.permission.SET_WALLPAPER`.
`abstract void`	`setWallpaper(InputStream data)` This method was deprecated in API level 15. Use `WallpaperManager.set()` instead. This method requires the caller to hold the permission `Manifest.permission.SET_WALLPAPER`.
`abstract void`	`startActivities(Intent[] intents, Bundle options)` Launch multiple new activities.
`abstract void`	`startActivities(Intent[] intents)` Same as `startActivities(android.content.Intent[], android.os.Bundle)` with no options specified.
`abstract void`	`startActivity(Intent intent)` Same as `startActivity(android.content.Intent, android.os.Bundle)` with no options specified.
`abstract void`	`startActivity(Intent intent, Bundle options)` Launch a new activity.
`abstract ComponentName`	`startForegroundService(Intent service)` Similar to `startService(android.content.Intent)`, but with an implicit promise that the Service will call `startForeground(int, android.app.Notification)` once it begins running.
`abstract boolean`	`startInstrumentation(ComponentName className, String profileFile, Bundle arguments)` Start executing an `Instrumentation` class.
`abstract void`	`startIntentSender(IntentSender intent, Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags)` Same as `startIntentSender(android.content.IntentSender, android.content.Intent, int, int, int, android.os.Bundle)` with no options specified.
`abstract void`	`startIntentSender(IntentSender intent, Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags, Bundle options)` Like `startActivity(android.content.Intent, android.os.Bundle)`, but taking a IntentSender to start.
`abstract ComponentName`	`startService(Intent service)` Request that a given application service be started.
`abstract boolean`	`stopService(Intent service)` Request that a given application service be stopped.
`abstract void`	`unbindService(ServiceConnection conn)` Disconnect from an application service.
`void`	`unregisterComponentCallbacks(ComponentCallbacks callback)` Remove a `ComponentCallbacks` object that was previously registered with `registerComponentCallbacks(android.content.ComponentCallbacks)`.
`void`	`unregisterDeviceIdChangeListener(IntConsumer listener)` Removes a device ID changed listener from the Context.
`abstract void`	`unregisterReceiver(BroadcastReceiver receiver)` Unregister a previously registered BroadcastReceiver.
`void`	`updateServiceGroup(ServiceConnection conn, int group, int importance)` For a service previously bound with `bindService(Intent, BindServiceFlags, Executor, ServiceConnection)` or a related method, change how the system manages that service's process in relation to other processes.

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

From interface


        
          android.content.ComponentCallbacks2


      onTrimMemory(int level)

Called when the operating system has determined that it is a good time for a process to trim unneeded memory from its process.

From interface


        
          android.content.ComponentCallbacks

`abstract void`	`onConfigurationChanged(Configuration newConfig)` Called by the system when the device configuration changes while your component is running.
`abstract void`	`onLowMemory()` This method was deprecated in API level 35. Since API level 14 this is superseded by `ComponentCallbacks2.onTrimMemory`. Since API level 34 this is never called. If you're overriding ComponentCallbacks2#onTrimMemory and your minSdkVersion is greater than API 14, you can provide an empty implementation for this method.

Constants

SERVICE_INTERFACE

Added in API level 23

public static final String SERVICE_INTERFACE

The Intent that must be declared as handled by the service.

Constant Value: "android.telecom.ConnectionService"

Public constructors

ConnectionService

public ConnectionService ()

Public methods

addConference

Added in API level 23

public final void addConference (Conference conference)

Adds a new conference call. When a conference call is created either as a result of an explicit request via onConference(Connection, Connection) or otherwise, the connection service should supply an instance of Conference by invoking this method. A conference call provided by this method will persist until Conference.destroy is invoked on the conference instance.

Parameters
`conference`	`Conference`: The new conference object.

addConferenceFromConnection

Added in version 36.1

public final void addConferenceFromConnection (Conference conference, 
                Connection originalConnection)

This is used to make a Connection become a Conference when the remote party merges calls together. In prior API revisions, the Connection would be disconnected and re-added as a Conference; this method accomplishes that in a single step and maintains attributes such as the call duration associated with the Connection.

Parameters
`conference`	`Conference`: The new conference object. This value cannot be `null`.
`originalConnection`	`Connection`: The original connection object. This value cannot be `null`.

addExistingConnection

Added in API level 23

public final void addExistingConnection (PhoneAccountHandle phoneAccountHandle, 
                Connection connection)

Adds a connection created by the ConnectionService and informs telecom of the new connection.

Parameters
`phoneAccountHandle`	`PhoneAccountHandle`: The phone account handle for the connection.
`connection`	`Connection`: The connection to add.

conferenceRemoteConnections

Added in API level 23

public final void conferenceRemoteConnections (RemoteConnection remoteConnection1, 
                RemoteConnection remoteConnection2)

Indicates to the relevant RemoteConnectionService that the specified RemoteConnections should be merged into a conference call.

If the conference request is successful, the method onRemoteConferenceAdded(RemoteConference) will be invoked.

Parameters
`remoteConnection1`	`RemoteConnection`: The first of the remote connections to conference.
`remoteConnection2`	`RemoteConnection`: The second of the remote connections to conference.

connectionServiceFocusReleased

Added in API level 28

public final void connectionServiceFocusReleased ()

Call to inform Telecom that your ConnectionService has released call resources (e.g microphone, camera).

The ConnectionService will be disconnected when it failed to call this method within 5 seconds after onConnectionServiceFocusLost() is called.

See also:

onConnectionServiceFocusLost()

createRemoteIncomingConference

Added in API level 31

public final RemoteConference createRemoteIncomingConference (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Ask some other ConnectionService to create a RemoteConference given an incoming request. This is used by ConnectionServices that are registered with PhoneAccount.CAPABILITY_ADHOC_CONFERENCE_CALLING.

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`. This value may be `null`.
`request`	`ConnectionRequest`: Details about the incoming conference call. This value may be `null`.

Returns
`RemoteConference`	The `RemoteConference` object to satisfy this call, or `null` to not handle the call.

createRemoteIncomingConnection

Added in API level 23

public final RemoteConnection createRemoteIncomingConnection (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Ask some other ConnectionService to create a RemoteConnection given an incoming request. This is used by ConnectionServices that are registered with PhoneAccount.CAPABILITY_CONNECTION_MANAGER and want to be able to manage SIM-based incoming calls.

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`. This value cannot be `null`.
`request`	`ConnectionRequest`: Details about the incoming call. This value cannot be `null`.

Returns
`RemoteConnection`	The `Connection` object to satisfy this call, or `null` to not handle the call.

createRemoteOutgoingConference

Added in API level 31

public final RemoteConference createRemoteOutgoingConference (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Ask some other ConnectionService to create a RemoteConference given an outgoing request. This is used by ConnectionServices that are registered with PhoneAccount.CAPABILITY_ADHOC_CONFERENCE_CALLING.

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`. This value may be `null`.
`request`	`ConnectionRequest`: Details about the outgoing conference call. This value may be `null`.

Returns
`RemoteConference`	The `RemoteConference` object to satisfy this call, or `null` to not handle the call.

createRemoteOutgoingConnection

Added in API level 23

public final RemoteConnection createRemoteOutgoingConnection (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Ask some other ConnectionService to create a RemoteConnection given an outgoing request. This is used by ConnectionServices that are registered with PhoneAccount.CAPABILITY_CONNECTION_MANAGER and want to be able to use the SIM-based ConnectionService to place its outgoing calls.

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`. This value cannot be `null`.
`request`	`ConnectionRequest`: Details about the outgoing call. This value cannot be `null`.

Returns
`RemoteConnection`	The `Connection` object to satisfy this call, or `null` to not handle the call.

getAllConferences

Added in API level 24

public final Collection<Conference> getAllConferences ()

Returns all the active Conferences for which this ConnectionService has taken responsibility.

Returns
`Collection<Conference>`	A collection of `Conference`s created by this `ConnectionService`.

getAllConnections

Added in API level 23

public final Collection<Connection> getAllConnections ()

Returns all the active Connections for which this ConnectionService has taken responsibility.

Returns
`Collection<Connection>`	A collection of `Connection`s created by this `ConnectionService`.

onBind

Added in API level 23

public final IBinder onBind (Intent intent)

Return the communication channel to the service. May return null if clients can not bind to the service. The returned IBinder is usually for a complex interface that has been described using aidl.

Note that unlike other application components, calls on to the IBinder interface returned here may not happen on the main thread of the process. More information about the main thread can be found in Processes and Threads.

Parameters
`intent`	`Intent`: The Intent that was used to bind to this service, as given to `Context.bindService`. Note that any extras that were included with the Intent at that point will not be seen here.

Returns
`IBinder`	Return an IBinder through which clients can call on to the service.

onConference

Added in API level 23

public void onConference (Connection connection1, 
                Connection connection2)

Conference two specified connections. Invoked when the user has made a request to merge the specified connections into a conference call. In response, the connection service should create an instance of Conference and pass it into addConference(Conference).

Parameters
`connection1`	`Connection`: A connection to merge into a conference call.
`connection2`	`Connection`: A connection to merge into a conference call.

onConnectionServiceFocusGained

Added in API level 28

public void onConnectionServiceFocusGained ()

Called when the ConnectionService has gained the call focus. The ConnectionService can acquire the call resources at this time.

onConnectionServiceFocusLost

Added in API level 28

public void onConnectionServiceFocusLost ()

Called when the ConnectionService has lost the call focus. The ConnectionService should release the call resources and invokes ConnectionService.connectionServiceFocusReleased() to inform telecom that it has released the call resources.

onCreateConferenceComplete

Added in version 36.1

public void onCreateConferenceComplete (Conference conference)

Called by Telecom after the Conference returned by onCreateIncomingConference(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest) or onCreateOutgoingConference(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest) has been added to the ConnectionService and sent to Telecom.

Parameters
`conference`	`Conference`: the `Conference` which was added to Telecom. This value cannot be `null`.

onCreateConnectionComplete

Added in version 36.1

public void onCreateConnectionComplete (Connection connection)

Called by Telecom after the Connection returned by onCreateIncomingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest) or onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest) has been added to the ConnectionService and sent to Telecom.

Parameters
`connection`	`Connection`: the `Connection` which was added to Telecom. This value cannot be `null`.

onCreateIncomingConference

Added in API level 31

public Conference onCreateIncomingConference (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Create a Conference given an incoming request. This is used to attach to an incoming conference call initiated via TelecomManager.addNewIncomingConference(PhoneAccountHandle, Bundle).

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`. This value cannot be `null`.
`request`	`ConnectionRequest`: Details about the incoming conference call. This value cannot be `null`.

Returns
`Conference`	The `Conference` object to satisfy this call. If the conference attempt is failed, the return value will be a result of an invocation of `Connection.createFailedConnection(DisconnectCause)`. Return `null` if the `ConnectionService` cannot handle the call.

onCreateIncomingConferenceFailed

Added in API level 31

public void onCreateIncomingConferenceFailed (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Called by Telecom to inform the ConnectionService that its request to create a new incoming Conference was denied.

Used when a self-managed ConnectionService attempts to create a new incoming Conference, but Telecom has determined that the call cannot be allowed at this time. The ConnectionService is responsible for silently rejecting the new incoming Conference.

See TelecomManager.isIncomingCallPermitted(PhoneAccountHandle) for more information.

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`. This value may be `null`.
`request`	`ConnectionRequest`: The incoming connection request. This value may be `null`.

onCreateIncomingConnection

Added in API level 23

public Connection onCreateIncomingConnection (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Create a Connection given an incoming request. This is used to attach to existing incoming calls.

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`.
`request`	`ConnectionRequest`: Details about the incoming call.

Returns
`Connection`	The `Connection` object to satisfy this call, or `null` to not handle the call.

onCreateIncomingConnectionFailed

Added in API level 26

public void onCreateIncomingConnectionFailed (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Called by Telecom to inform the ConnectionService that its request to create a new incoming Connection was denied.

Used when a self-managed ConnectionService attempts to create a new incoming Connection, but Telecom has determined that the call cannot be allowed at this time. The ConnectionService is responsible for silently rejecting the new incoming Connection.

See TelecomManager.isIncomingCallPermitted(PhoneAccountHandle) for more information.

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`.
`request`	`ConnectionRequest`: The incoming connection request.

onCreateIncomingHandoverConnection

Added in API level 28

public Connection onCreateIncomingHandoverConnection (PhoneAccountHandle fromPhoneAccountHandle, 
                ConnectionRequest request)

Called by Telecom to request that a ConnectionService creates an instance of an incoming handover Connection.

A call handover is the process where an ongoing call is transferred from one app (i.e. ConnectionService to another app. The user could, for example, choose to continue a mobile network call in a video calling app. The mobile network call via the Telephony stack is referred to as the source of the handover, and the video calling app is referred to as the destination.

When considering a handover scenario the initiating device is where a user initiated the handover process (e.g. by calling Call.handoverTo(PhoneAccountHandle, int, Bundle), and the other device is considered the receiving device.

This method is called on the destination app on the receiving device when the destination app calls TelecomManager.acceptHandover(Uri, int, PhoneAccountHandle) to accept an incoming handover from the initiating device.

For a full discussion of the handover process and the APIs involved, see Call.handoverTo(PhoneAccountHandle, int, Bundle).

Implementations of this method should return an instance of Connection which represents the handover. The code below shows an example of how this is done.

 public Connection onCreateIncomingHandoverConnection(PhoneAccountHandle
     fromPhoneAccountHandle, ConnectionRequest request) {
   // Given that your app requested to accept the handover, you should not return null here.
   MyConnection connection = new MyConnection();
   connection.setAddress(request.getAddress(), TelecomManager.PRESENTATION_ALLOWED);
   connection.setVideoState(request.getVideoState());
   return connection;
 }

Parameters
`fromPhoneAccountHandle`	`PhoneAccountHandle`: `PhoneAccountHandle` associated with the ConnectionService which needs to handover the call.
`request`	`ConnectionRequest`: Details about the call which needs to be handover.

Returns
`Connection`	`Connection` instance corresponding to the handover call.

onCreateOutgoingConference

Added in API level 31

public Conference onCreateOutgoingConference (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Create a Conference given an outgoing request. This is used to initiate new outgoing conference call requested via TelecomManager.startConference(List, Bundle).

Parameters

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: The connection manager account to use for managing this call. If this parameter is not `null`, it means that this `ConnectionService` has registered one or more `PhoneAccount`s having `PhoneAccount.CAPABILITY_CONNECTION_MANAGER`. This parameter will contain one of these `PhoneAccount`s, while the `request` will contain another (usually but not always distinct) `PhoneAccount` to be used for actually making the connection. If this parameter is `null`, it means that this `ConnectionService` is being asked to make a direct connection. The `ConnectionRequest.getAccountHandle()` of parameter `request` will be a `PhoneAccount` registered by this `ConnectionService` to use for making the connection.
`request`	`ConnectionRequest`: Details about the outgoing call. This value cannot be `null`.

connectionManagerPhoneAccount

PhoneAccountHandle: The connection manager account to use for managing this call.

If this parameter is not null, it means that this ConnectionService has registered one or more PhoneAccounts having PhoneAccount.CAPABILITY_CONNECTION_MANAGER. This parameter will contain one of these PhoneAccounts, while the request will contain another (usually but not always distinct) PhoneAccount to be used for actually making the connection.

If this parameter is null, it means that this ConnectionService is being asked to make a direct connection. The ConnectionRequest.getAccountHandle() of parameter request will be a PhoneAccount registered by this ConnectionService to use for making the connection.

request

ConnectionRequest: Details about the outgoing call. This value cannot be null.

Returns
`Conference`	The `Conference` object to satisfy this call. If the conference attempt is failed, the return value will be a result of an invocation of `Connection.createFailedConnection(DisconnectCause)`. Return `null` if the `ConnectionService` cannot handle the call.

onCreateOutgoingConferenceFailed

Added in API level 31

public void onCreateOutgoingConferenceFailed (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Called by Telecom to inform the ConnectionService that its request to create a new outgoing Conference was denied.

Used when a self-managed ConnectionService attempts to create a new outgoing Conference, but Telecom has determined that the call cannot be placed at this time. The ConnectionService is responisible for informing the user that the Conference cannot be made at this time.

See TelecomManager.isOutgoingCallPermitted(PhoneAccountHandle) for more information.

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`. This value cannot be `null`.
`request`	`ConnectionRequest`: The outgoing connection request. This value cannot be `null`.

onCreateOutgoingConnection

Added in API level 23

public Connection onCreateOutgoingConnection (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Create a Connection given an outgoing request. This is used to initiate new outgoing calls.

Parameters

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: The connection manager account to use for managing this call. If this parameter is not `null`, it means that this `ConnectionService` has registered one or more `PhoneAccount`s having `PhoneAccount.CAPABILITY_CONNECTION_MANAGER`. This parameter will contain one of these `PhoneAccount`s, while the `request` will contain another (usually but not always distinct) `PhoneAccount` to be used for actually making the connection. If this parameter is `null`, it means that this `ConnectionService` is being asked to make a direct connection. The `ConnectionRequest.getAccountHandle()` of parameter `request` will be a `PhoneAccount` registered by this `ConnectionService` to use for making the connection.
`request`	`ConnectionRequest`: Details about the outgoing call.

connectionManagerPhoneAccount

PhoneAccountHandle: The connection manager account to use for managing this call.

request

ConnectionRequest: Details about the outgoing call.

Returns
`Connection`	The `Connection` object to satisfy this call, or the result of an invocation of `Connection.createFailedConnection(DisconnectCause)` to not handle the call.

onCreateOutgoingConnectionFailed

Added in API level 26

public void onCreateOutgoingConnectionFailed (PhoneAccountHandle connectionManagerPhoneAccount, 
                ConnectionRequest request)

Called by Telecom to inform the ConnectionService that its request to create a new outgoing Connection was denied.

Used when a self-managed ConnectionService attempts to create a new outgoing Connection, but Telecom has determined that the call cannot be placed at this time. The ConnectionService is responisible for informing the user that the Connection cannot be made at this time.

See TelecomManager.isOutgoingCallPermitted(PhoneAccountHandle) for more information.

Parameters
`connectionManagerPhoneAccount`	`PhoneAccountHandle`: See description at `onCreateOutgoingConnection(android.telecom.PhoneAccountHandle, android.telecom.ConnectionRequest)`.
`request`	`ConnectionRequest`: The outgoing connection request.

onCreateOutgoingHandoverConnection

Added in API level 28

public Connection onCreateOutgoingHandoverConnection (PhoneAccountHandle fromPhoneAccountHandle, 
                ConnectionRequest request)

Called by Telecom to request that a ConnectionService creates an instance of an outgoing handover Connection.

This method is called on the destination ConnectionService on initiating device when the user initiates a handover request from one app to another. The user request originates in the InCallService via Call.handoverTo(PhoneAccountHandle, int, Bundle).

For a full discussion of the handover process and the APIs involved, see Call.handoverTo(PhoneAccountHandle, int, Bundle).

Implementations of this method should return an instance of Connection which represents the handover. If your app does not wish to accept a handover to it at this time, you can return null. The code below shows an example of how this is done.

 public Connection onCreateIncomingHandoverConnection(PhoneAccountHandle
     fromPhoneAccountHandle, ConnectionRequest request) {
   if (!isHandoverAvailable()) {
       return null;
   }
   MyConnection connection = new MyConnection();
   connection.setAddress(request.getAddress(), TelecomManager.PRESENTATION_ALLOWED);
   connection.setVideoState(request.getVideoState());
   return connection;
 }

Parameters
`fromPhoneAccountHandle`	`PhoneAccountHandle`: `PhoneAccountHandle` associated with the ConnectionService which needs to handover the call.
`request`	`ConnectionRequest`: Details about the call to handover.

Returns
`Connection`	`Connection` instance corresponding to the handover call.

onHandoverFailed

Added in API level 28

public void onHandoverFailed (ConnectionRequest request, 
                int error)

Called by Telecom in response to a TelecomManager#acceptHandover() invocation which failed.

For a full discussion of the handover process and the APIs involved, see Call.handoverTo(PhoneAccountHandle, int, Bundle)

Parameters
`request`	`ConnectionRequest`: Details about the call which failed to handover.
`error`	`int`: Reason for handover failure. Will be one of the Value is `Call.Callback.HANDOVER_FAILURE_DEST_APP_REJECTED`, `Call.Callback.HANDOVER_FAILURE_NOT_SUPPORTED`, `Call.Callback.HANDOVER_FAILURE_USER_REJECTED`, `Call.Callback.HANDOVER_FAILURE_ONGOING_EMERGENCY_CALL`, or `Call.Callback.HANDOVER_FAILURE_UNKNOWN`

onRemoteConferenceAdded

Added in API level 23

public void onRemoteConferenceAdded (RemoteConference conference)

Indicates that a remote conference has been created for existing RemoteConnections. When this method is invoked, this ConnectionService should create its own representation of the conference call and send it to telecom using addConference(Conference).

This is only relevant to ConnectionServices which are registered with PhoneAccount.CAPABILITY_CONNECTION_MANAGER.

Parameters
`conference`	`RemoteConference`: The remote conference call.

onRemoteExistingConnectionAdded

Added in API level 23

public void onRemoteExistingConnectionAdded (RemoteConnection connection)

Called when an existing connection is added remotely.

Parameters
`connection`	`RemoteConnection`: The existing connection which was added.

onUnbind

Added in API level 23

public boolean onUnbind (Intent intent)

Called when all clients have disconnected from a particular interface published by the service. The default implementation does nothing and returns false.

Parameters
`intent`	`Intent`: The Intent that was used to bind to this service, as given to `Context.bindService`. Note that any extras that were included with the Intent at that point will not be seen here.

Returns
`boolean`	Return true if you would like to have the service's `onRebind(Intent)` method later called when new clients bind to it.