从HomeScreen中解除警报，任何快速方式？

Question

开发闹钟应用程序，该应用程序可以设置闹钟，并在设定的时间内播放默认声音。但是，在默认的Android Alarmclock中，当闹钟响起时，会打开一个对话框来关闭闹钟，我的问题是我是否需要从我的应用中创建那种自定义Activity，以便能够解除闹钟，或者是Android中的任何默认选项都可以调用它们。

以下是我在我的应用中使用的服务代码：

public class AlarmService extends IntentService {
private NotificationManager alarmNotificationManager;

public AlarmService() {
super("AlarmService");
}

@Override
public void onHandleIntent(Intent intent) {
sendNotification("Wake Up! Wake Up!");
}

private void sendNotification(String msg) {
Log.d("AlarmService", "Preparing to send notification...: " + msg);
alarmNotificationManager = (NotificationManager) this
        .getSystemService(Context.NOTIFICATION_SERVICE);

PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
        new Intent(this, Time_Date.class), 0);

NotificationCompat.Builder alamNotificationBuilder = new 
NotificationCompat.Builder(

this).setContentTitle("Alarm").setSmallIcon(R.drawable.ic_launcher)
        .setStyle(new NotificationCompat.BigTextStyle().bigText(msg))
        .setContentText(msg);


alamNotificationBuilder.setContentIntent(contentIntent);
alarmNotificationManager.notify(1, alamNotificationBuilder.build());
Log.d("AlarmService", "Notification sent.");
}
}