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The media app architecture has the following components:
UI -->Media controller -->Media session -->Player
UI Transport protocols are used to run the player and displays the players state
Player- Player takes the digital media and plays the video/audio. E.g. Mediaplayer and Exoplayer libraries in android
Media controller- Media controller takes transport protocol commands from the UI and translates it into callbacks against the media session
Media session- Media sessions maintains the current state of the player, metadata and information about the playback. The media session isolates the Player from the media controller
Media Session calls-
| On play() | On Pause() | On Stop() |
Audio Focus | requestfocus() passing in your OnAudioFocusChangeListener |
| Abandon Audio Focus() |
Media Session | setActive()= True - update metadata and state | Update metadata and state | setActive()= False |
| Player implementation() | Start the Player | Pause the player | Stop the player |
| Becoming Noisy | Register your broadcast receiver | Unregister your broadcast receiver | |
| Notification | Show notifications | Update notification |
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