android暂停或停止其他音乐播放器的播放实现代码

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);
 }