如何获取有关其他应用程序播放音频的源(filedesc.或uri)的信息?
在AudioManager中,只有isMusicActive()方法,它不提供任何其他信息.因为它不是我的应用程序,我没有任何MediaPlayer对象.
为已知的动作意图注册广播接收器并处理广播以显示或对轨道信息执行某些操作,来源:
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); 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"); iF.addAction("com.htc.music.metachanged"); iF.addAction("fm.last.android.metachanged"); iF.addAction("com.sec.android.app.music.metachanged"); iF.addAction("com.nullsoft.winamp.metachanged"); iF.addAction("com.amazon.mp3.metachanged"); iF.addAction("com.miui.player.metachanged"); iF.addAction("com.real.IMP.metachanged"); iF.addAction("com.sonyericsson.music.metachanged"); iF.addAction("com.rdio.android.metachanged"); iF.addAction("com.samsung.sec.android.MusicPlayer.metachanged"); iF.addAction("com.andrew.apollo.metachanged"); 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(); } }; }