These guides discuss the MediaCompat APIs, which are no longer updated. We strongly recommend using the Jetpack Media3 library instead.

Media session callbacks

Since a video app runs its media session and media controller in the same activity, the media session callbacks are different from the implementation shown for the audio app server/client architecture. There are no service calls, and notifications are handled via the NotificationManager. The following table shows how the various features are controlled in each callback method:

	onPlay()	onPause()	onStop()
Audio Focus	`requestFocus()` passing in your `OnAudioFocusChangeListener`. Always call `requestFocus()` first, proceed only if focus is granted.		`abandonAudioFocus()`
Media Session	`setActive(true)` - Update metadata and state	- Update metadata and state	`setActive(false)` - Update metadata and state
Player Implementation	Start the player	Pause the player	Stop the player
Becoming Noisy	Register your `BroadcastReceiver`	Unregister your `BroadcastReceiver`
Notifications	Show notification	Update notification