MediaPlayer sometimes not preparing when screen is locked
I have a MusicService for MediaPlayback, wich uses a MediaPlayer with the settings: player.setWakeMode(getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK); player.setAudioStreamType(AudioManager.STREAM_MUSIC); and those Listeners are set: OnPreparedListener, OnCompletionListener, OnErrorListener, OnSeekCompleteListener The MediaPlayer is used for mp3-Playback. When one Song is finished, onCompletion is called. Then PlayNext is called, wich resets the MediaPlayer, then sets the Datasource with the URI of the next Track. Uri is loaded with: Uri trackUri = ContentUris .withAppendedId(android