关于在Android中通过微调器播放音乐

 Intent intent = new Intent(android.content.Intent.ACTION_VIEW);

    Uri data = Uri.parse(\"file://\"+Environment.getExternalStorageDirectory()
            .getAbsolutePath()+\"/\" + fileName);
    String type = \"audio/mp3\";
    intent.setDataAndType(data, type);
    startActivity(intent);

final MediaPlayer mPlayer=MediaPlayer.create(getBaseContext(), R.raw.reload);
mPlayer.setOnCompletionListener(new OnCompletionListener() {

    @Override
    public void onCompletion(MediaPlayer mp) {
        //new Toast(getBaseContext());

        mPlayer.release();
        mPlayer = null;



    }
});