What are the functions of MediaSession in Android?

The role of MediaSession in Android includes:

1. Control media player: MediaSession allows control over media player functions such as play, pause, stop, fast forward, and rewind.
2. Interact with media controllers: MediaSession allows applications to communicate with media controllers, such as notification bar, lock screen controller, headphone controller, etc., enabling control of music or video.
3. Handling headphone events: MediaSession can listen to events such as headphone plug-ins, plug-outs, and respond accordingly, such as pausing or resuming playback.
4. Communicate with remote services: MediaSession allows for communication with remote services (such as Android Auto, Android TV, etc.), enabling remote control of media playback.
5. Supporting various media applications: MediaSession can support multiple different media applications running simultaneously, ensuring they do not interfere with each other.