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