Android获取系统播放音乐信息

如题，需要获取播放的音乐信息，原理是播放音乐的时候会发送四种广播，因此可以使用广播接收器拦截一下广播……但是！！！！当系统正在播放音乐的时候，我还不知道怎么获取音乐信息QAQ要是哪位知道怎么获取，求告知QAQ

MusicBroadcastReceiver mbr = null;class MusicBroadcastReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        artistName = intent.getStringExtra("artist");        musicName = intent.getStringExtra("track");        Log.d(TAG, "onReceive:    " + intent.toString());        tvMainMusicArtist.setText("—  " + artistName + "  —");        tvMainMusicName.setText(musicName);        //此处是用来查看intent中包含的key        Bundle bundle = intent.getExtras();        Set set = bundle.keySet();        for (Iterator iterator = set.iterator(); iterator.hasNext(); ) {            String key = (String) iterator.next();            Object value = bundle.get(key);            Log.i("IntentActivity", "key:" + key + " value:" + value);        }    }}

注册一下广播

 @Override    protected void onResume() {        mbr = new MusicBroadcastReceiver();        IntentFilter intentFilter = new IntentFilter();        intentFilter.addAction("com.android.music.metachanged");        intentFilter.addAction("com.android.music.queuechanged");        intentFilter.addAction("com.android.music.playbackcomplete");        intentFilter.addAction("com.android.music.playstatechanged");        registerReceiver(mbr, intentFilter);}

最后别忘了注销

protected void onDestroy() {        if (mbr != null) {            unregisterReceiver(mbr);        }        super.onDestroy();}

最后，附intent中的jian键值对：

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