android暂停或停止其他音乐播放器的播放

来自Android自带的music源码，下面是广播接收的代码，通过发送广播来控制音乐的播放，停止等。

代码如下：

   public static final String PLAYSTATE_CHANGED = "com.android.music.playstatechanged";
  public static final String META_CHANGED = "com.android.music.metachanged";
  public static final String QUEUE_CHANGED = "com.android.music.queuechanged";
  public static final String PLAYBACK_COMPLETE = "com.android.music.playbackcomplete";
  public static final String ASYNC_OPEN_COMPLETE = "com.android.music.asyncopencomplete";
  public static final String SERVICECMD = "com.android.music.musicservicecommand";
  public static final String CMDNAME = "command";
  public static final String CMDTOGGLEPAUSE = "togglepause";
  public static final String CMDSTOP = "stop";
  public static final String CMDPAUSE = "pause";
  public static final String CMDPREVIOUS = "previous";
  public static final String CMDNEXT = "next";


 private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
      @Override
      public void onReceive(Context context, Intent intent) {
          String action = intent.getAction();
          String cmd = intent.getStringExtra("command");
          if (CMDNEXT.equals(cmd) || NEXT_ACTION.equals(action)) {
              next(true);
          } else if (CMDPREVIOUS.equals(cmd) || PREVIOUS_ACTION.equals(action)) {
              prev();
          } else if (CMDTOGGLEPAUSE.equals(cmd) || TOGGLEPAUSE_ACTION.equals(action)) {
              if (isPlaying()) {
                  pause();
              } else {
                  play();
              }
          } else if (CMDPAUSE.equals(cmd) || PAUSE_ACTION.equals(action)) {
              pause();
          } else if (CMDSTOP.equals(cmd)) {
              pause();
              seek(0);
          } else if (MediaAppWidgetProvider.CMDAPPWIDGETUPDATE.equals(cmd)) {
              // Someone asked us to refresh a set of specific widgets, probably
              // because they were just added.
              int[] appWidgetIds = intent.getIntArrayExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS);
              mAppWidgetProvider.performUpdate(MediaPlaybackService.this, appWidgetIds);
          }
      }
  };

 

通过分析可以得出要暂停音乐可以有两种方法，一种是直接发送cmd，另外一种是发送action。

如下暂停音乐播放代码：

 private void pauseMusic() {
     Intent freshIntent = new Intent();
     freshIntent.setAction("com.android.music.musicservicecommand.pause");
     freshIntent.putExtra("command", "pause");
     sendBroadcast(freshIntent);
 }

 

顶

0

踩