Android ListView中的setOnPreparedListener

我有一个ListFragment正在实现MediaPlayer.OnPreparedListener，如下所示

public class MyList extends ListFragment implements
        LoaderCallbacks<Cursor>, MediaPlayer.OnPreparedListener {

    @Override
    public void onPrepared(MediaPlayer mp) {
        mp.start();

    }
}

问题在于这个

 mPlayer.setOnPreparedListener(??);

我尝试了下面的方法，但没有一个奏效

this
context
getApplicationContext 
ListFragment.this

---

我应该使用什么？

我这样做了，它正在工作，但不确定这是否是正确的方法，基本上我正在传递游标适配器的接口

private static class MyCursorAdapter extends CursorAdapter {

 public MyCursorAdapter(Context context, MediaPlayer mPlayer,MediaPlayer.OnPreparedListener playerListener) {
            super(context, cursor, 0);
            this.playerListener = playerListener;

        }

           playButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {

                    Uri audioFile = Uri.parse("file:///sdcard/Download/audio.mp3");

                    mPlayer = new MediaPlayer();

                    try {
                        mPlayer.setDataSource(audioFile.toString());
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    mPlayer.setOnPreparedListener(playerListener);

                    mPlayer.prepareAsync();
                }
            });
}

private static class MyCursorAdapter extends CursorAdapter {

 public MyCursorAdapter(Context context, MediaPlayer mPlayer,MediaPlayer.OnPreparedListener playerListener) {
            super(context, cursor, 0);
            this.playerListener = playerListener;

        }

           playButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {

                    Uri audioFile = Uri.parse("file:///sdcard/Download/audio.mp3");

                    mPlayer = new MediaPlayer();

                    try {
                        mPlayer.setDataSource(audioFile.toString());
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    mPlayer.setOnPreparedListener(playerListener);

                    mPlayer.prepareAsync();
                }
            });
}