public void previousSong() {
m_provider.previousSong();
Song song = m_provider.getCurrentSong();
if (m_isPlaying) {
m_player.pause();
}
m_player.setSong(song);
if (m_isPlaying) {
m_player.play();
}
m_currentSong = song;
notifySongChanged(song);
}
public Engine(SongProvider provider, Player player) {
m_listeners = new HashSet<UpdateListener>();
m_provider = provider;
m_player = player;
m_isPlaying = false;
m_currentSong = m_provider.getCurrentSong();
m_player.setSong(m_currentSong);
m_player.addListener(
new Player.SongFinishedListener() {
public void onSongFinished() {
nextSong();
}
});
}