在Android中獲取當前歌曲在媒體播放器中播放的詳細信息

Question

我目前正在使用類似於下面的方法來檢索信息，但我不確定如何獲得該類型。 有沒有人知道什么字符串額外被稱為流派或是否有一個額外的？ 謝謝。

跟蹤當前播放音樂的信息

public class CurrentMusicTrackInfoActivity extends Activity 
{

 public static final String SERVICECMD = "com.android.music.musicservicecommand";

@Override
public void onCreate(Bundle savedInstanceState) 
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);



com.sec.android.app.music.player.service.CorePlayerService

IntentFilter iF = new IntentFilter();
iF.addAction("com.android.music.metachanged");
iF.addAction("com.android.music.playstatechanged");
iF.addAction("com.android.music.playbackcomplete");
iF.addAction("com.android.music.queuechanged");





registerReceiver(mReceiver, iF);
}

private BroadcastReceiver mReceiver = new BroadcastReceiver() 
{

@Override
public void onReceive(Context context, Intent intent)
{
String action = intent.getAction();
String cmd = intent.getStringExtra("command");
Log.v("tag ", action + " / " + cmd);
String artist = intent.getStringExtra("artist");
String album = intent.getStringExtra("album");
String track = intent.getStringExtra("track");
Log.v("tag",artist+":"+album+":"+track);
Toast.makeText(CurrentMusicTrackInfoActivity.this,track,Toast.LENGTH_SHORT).show(); 
}
};

}

Answer 1

事實證明，沒有任何類型的額外傳遞，只有上面的3和id。 我能夠看到使用以下代碼傳遞的額外內容：

Bundle b = intent.getExtras();
        Set<String> set = b.keySet();
        Iterator it = set.iterator();
        while(it.hasNext()==true){
            Toast.makeText(getApplicationContext(),""+it.next(), Toast.LENGTH_SHORT).show();
        }