@Documented @Retention(SOURCE) public static @interface Player.PlayWhenReadyChangeReason
playWhenReady changes. One of Player.PLAY_WHEN_READY_CHANGE_REASON_USER_REQUEST, Player.PLAY_WHEN_READY_CHANGE_REASON_AUDIO_FOCUS_LOSS, Player.PLAY_WHEN_READY_CHANGE_REASON_AUDIO_BECOMING_NOISY, Player.PLAY_WHEN_READY_CHANGE_REASON_REMOTE or Player.PLAY_WHEN_READY_CHANGE_REASON_END_OF_MEDIA_ITEM.