Intent.ACTION_TIME_TICK

这个广播动作是以每分钟一次的形式发送。但你不能通过在manifest.xml里静态注册，只能在代码里通过registerReceiver()方法动态注册。个人觉得可以用来做闹钟，或者开启被关闭的服务之类的、

1.广播的创建：

IntentFilter filter=new IntentFilter();
filter.addAction(Intent.ACTION_TIME_TICK);
registerReceiver(receiver,filter);

private final BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override
          public void onReceive(Context context, Intent intent) {
              String action = intent.getAction();
                if (action.equals(Intent.ACTION_TIME_TICK)) {
 
                  // to do                     
                }
          }
    };

3.检测服务是否在运行

public static boolean isServiceRunning(Class serviceClass) {
    ActivityManager activityManager = (ActivityManager) context
            .getSystemService(Context.ACTIVITY_SERVICE);
    List serviceList = activityManager
            .getRunningServices(Integer.MAX_VALUE);
    if (serviceList == null || serviceList.size() == 0)
        return false;
    for (RunningServiceInfo info : serviceList) {
        if (info.service.getClassName().equals(serviceClass.getName()))
            return true;
    }
    return false;
}