public PlaybackState getFurthestPlaybackState() {
        PlaybackState result = null;
        for (PlaybackState state : playbackStateMap.values()) {
            if (result == null || result.position < state.position) {
                result = state;
            }
        }
        return result;
    }
public PlaybackState getFurthestPlaybackState ( ) { PlaybackState result = null ; for ( PlaybackState state : playbackStateMap . values ( ) ) { if ( result == null || result . position < state . position ) { result = state ; } } return result ; }
Look up the playback state that has reached furthest in the track. This is used to render the “played until”
graphic below the preview.

@return the playback state, if any, with the highest {@link PlaybackState#position} value