Singleton類
public final class MySingleton extends Application {
static MediaPlayer instance;
public static MediaPlayer getInstance() {
if (instance == null)
{
instance = new MediaPlayer();
}
return instance;
}
}
適配器如果您的列表
初始化Singleton類有一次在構造
private static MediaPlayer mMediaPlayer = MySingleton.getInstance();
if (mMediaPlayer.isPlaying()) {
try {
mMediaPlayer.reset();
mMediaPlayer.stop();
mMediaPlayer.setDataSource(mainActivity, Uri.parse(songsarraylist.get(position).getPath()));
mMediaPlayer.prepare();
mMediaPlayer.start();
} catch (Exception e) {
Toast.makeText(mainActivity, "Catching", Toast.LENGTH_SHORT).show();
}
} else {
try {
mMediaPlayer.setDataSource(mainActivity, Uri.parse(songsarraylist.get(position).getPath()));
mMediaPlayer.prepare();
mMediaPlayer.start();
} catch (IOException e) {
e.printStackTrace();
}
}