Update BaseTransportControlGlue content information

BasicTransportControlGlue.kt

val currentMovie: Movie
    get() = playerAdapter.playlist[playerAdapter.playlistPosition]
    
// Event when ready state for play changes.
override fun onPreparedStateChanged() {
    super.onPreparedStateChanged()
    playWhenPrepared()
    updateMovieInfo(currentMovie)
}

private fun updateMovieInfo(movie: Movie?) {
    title = movie?.title
    subtitle = movie?.description
}

fun loadMovie(playlistPosition: Int) {
    playerAdapter.loadMovie(playlistPosition)
}

fun setPlaylist(movies: List<Movie>) {
    playerAdapter.playlist.clear()
    playerAdapter.playlist.addAll(movies)
}