CompanionDeviceManager.Callback

Kotlin |Java

public static abstract class CompanionDeviceManager.Callback
extends Object

java.lang.Object
↳	android.companion.CompanionDeviceManager.Callback

Callback for applications to receive updates about and the outcome of AssociationRequest issued via associate() call.

The Callback.onAssociationPending(IntentSender) is invoked after the AssociationRequest has been checked by the Companion Device Manager Service and is pending user's approval. The IntentSender received as an argument to Callback.onAssociationPending(IntentSender) "encapsulates" an Activity that has UI for the user to:

choose the device to associate the application with (if multiple eligible devices are available)
confirm the association
approve the privileges the application will be granted if the association is to be created

If the Companion Device Manager Service needs to scan for the devices, the Activity will also display the status and the progress of the scan. Note that Companion Device Manager Service will only start the scanning after the Activity was launched and became visible. Applications are expected to launch the UI using the received IntentSender via Activity.startIntentSenderForResult(IntentSender, int, Intent, int, int, int).

Upon receiving user's confirmation Companion Device Manager Service will create an association and will send an AssociationInfo object that represents the created association back to the application both via Callback.onAssociationCreated(AssociationInfo) and via Activity.setResult(int, Intent). In the latter the resultCode will be set to Activity.RESULT_OK and the data Intent will contain AssociationInfo extra named CompanionDeviceManager.EXTRA_ASSOCIATION.

 
   if (resultCode == Activity.RESULT_OK) {
     AssociationInfo associationInfo = data.getParcelableExtra(EXTRA_ASSOCIATION);
   }

If the Companion Device Manager Service is not able to create an association, it will invoke Callback.onFailure(CharSequence). If this happened after the application has launched the UI (eg. the user chose to reject the association), the outcome will also be delivered to the applications via Activity.setResult(int) with the Activity.RESULT_CANCELED resultCode.

Note that in some cases the Companion Device Manager Service may not need to collect user's approval for creating an association. In such cases, this method will not be invoked, and onAssociationCreated(android.companion.AssociationInfo) may be invoked right away.

See also:

Summary

Public constructors
`Callback()`

Public methods
`void`	`onAssociationCreated(AssociationInfo associationInfo)` Invoked when the association is created.
`void`	`onAssociationPending(IntentSender intentSender)` Invoked when the association needs to approved by the user.
`void`	`onDeviceFound(IntentSender intentSender)` This method was deprecated in API level 33. method was renamed to onAssociationPending() to provide better clarity; both methods are functionally equivalent and only one needs to be overridden.
`void`	`onFailure(int errorCode, CharSequence error)` Invoked if the association could not be created.
`abstract void`	`onFailure(CharSequence error)` Invoked if the association could not be created.

Inherited methods

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.

Public constructors

Callback

public Callback ()

Public methods

onAssociationCreated

Added in API level 33

public void onAssociationCreated (AssociationInfo associationInfo)

Invoked when the association is created.

Parameters
`associationInfo`	`AssociationInfo`: contains details of the newly-established association. This value cannot be `null`.

onAssociationPending

Added in API level 33

public void onAssociationPending (IntentSender intentSender)

Invoked when the association needs to approved by the user. Applications should launch the Activity "encapsulated" in intentSender IntentSender object by calling Activity.startIntentSenderForResult(IntentSender, int, Intent, int, int, int).

Parameters
`intentSender`	`IntentSender`: an `IntentSender` which applications should use to launch the UI for the user to confirm the association. This value cannot be `null`.

onDeviceFound

Added in API level 26
Deprecated in API level 33

public void onDeviceFound (IntentSender intentSender)

This method was deprecated in API level 33.
method was renamed to onAssociationPending() to provide better clarity; both methods are functionally equivalent and only one needs to be overridden.

Parameters
`intentSender`	`IntentSender`: This value cannot be `null`.

See also:

onAssociationPending(IntentSender)

onFailure

Added in Android Baklava

public void onFailure (int errorCode, 
                CharSequence error)

Invoked if the association could not be created. Please note that both onFailure(java.lang.CharSequence) and this API will be called if the association could not be created.

Parameters
`errorCode`	`int`: indicate the particular error code why the association could not be created. Value is `CompanionDeviceManager.RESULT_OK`, `CompanionDeviceManager.RESULT_CANCELED`, `CompanionDeviceManager.RESULT_USER_REJECTED`, `CompanionDeviceManager.RESULT_DISCOVERY_TIMEOUT`, or `CompanionDeviceManager.RESULT_INTERNAL_ERROR`
`error`	`CharSequence`: error message. This value may be `null`.

onFailure

Added in API level 26

public abstract void onFailure (CharSequence error)

Invoked if the association could not be created.

Parameters
`error`	`CharSequence`: error message. This value may be `null`.