[Exoplayer - audio auto focus]

Hello everyone, I have problem with Audio focus on Exoplayer 2.9.2 => My expectation : When my app is playing video -> pause Spotify When my app is pause/stop/destroy video -> resume Spotify But I have no idea about this, only stop spotify not pause when my app is playing video Thanks

https://medium.com/google-exoplayer/easy-audio-focus-with-exoplayer-a2dcbbe4640e

binding.playerView.setControlDispatcher(object : DefaultControlDispatcher() {
                override fun dispatchSetPlayWhenReady(
                        player: Player?,
                        playWhenReady: Boolean
                ): Boolean {
                    player?.audioComponent?.setAudioAttributes(AudioAttributes.Builder()
                            .setUsage(C.USAGE_MEDIA)
                            .setContentType(C.CONTENT_TYPE_SPEECH)
                            .build(),true)
                    binding.playerView.keepScreenOn = playWhenReady
                    Hawk.put(FEED_VIDEO_AUTO_PLAY, playWhenReady)
                    setVideoPlayLargest()
                    return super.dispatchSetPlayWhenReady(player, playWhenReady)
                }
            })
<com.google.android.exoplayer2.ui.SimpleExoPlayerView
                        android:id="@+id/player_view"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center_horizontal"
                        app:controller_layout_id="@layout/video_tab_playback_control"
                        app:resize_mode="fixed_width"
                        app:surface_type="texture_view"
                        app:use_controller="true" />

```

[krocard]

First, if if what your app is playing is long duration (eg music), you should keep the current behaviour. Spotify and playbacks in general are only expected to resume after the playback of a notification or a short priority sound in general.

Now if your app is indeed playing a short sound, for Spotify or any other playback (eg Youtube) to resume after your app has stopped playback, Audio focus transient needs to be requested.

As you are using SimpleExoPlayer’s AudioFocus management, a TRANSIENT audio focus request will be automatically used for usages such as USAGE_ALARM (pause), USAGE_NOTIFICATION (duck). Thus switch USAGE_MEDIA for what usage best describe your usage.

[Samrobbo]

You can see #7399 for an explanation into this more, and we currently have #7317 to track the addition of more audio focus modes.