今天在csdn上有問這個問題就研究下，正好自己的專案也需要用到，順便做個記錄。

來自android自帶的music原始碼，下面是廣播接收的程式碼，通過傳送廣播來控制音樂的播放，停止等。

程式碼如下：

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); } } };

通過分析可以得出要暫停音樂可以有兩種方法，一種是直接傳送cmd，另外一種是傳送action。

如下暫停音樂播放程式碼：

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