问如何在锁屏上解除android棒棒糖通知？

EN

    //These are parameters for setting up the tag in the tray
private static final String NOTIFICATION_ID_TAG="notificationID";
private static final int NOTIFICATION_ID=123456;

public void createNotification() {
    // Prepare intent which is triggered if the
    // notification is selected
    Intent intent = new Intent(this, MainActivity_Host.class);
    intent.putExtra(NOTIFICATION_ID_TAG, NOTIFICATION_ID);
    PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent, 0);

    // Build notification
    Notification noti = new Notification.Builder(this)
            .setContentTitle("Service Running")
            .setContentText("The service is running").setSmallIcon(R.mipmap.ic_launcher)
            .setContentIntent(pIntent)
            .build();
    NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

    //THIS FLAG MAKES THE NOTIFICATION STICK = YOU CAN'T SWIPE IT AWAY... IF YOU LEAVE IT OUT YOU CAN REMOVE THE NOTIFICATION
    noti.flags |= Notification.FLAG_ONGOING_EVENT;

    notificationManager.notify(NOTIFICATION_ID, noti);

}

        //Erase the notification that we set up when the service started
    NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.cancel(NOTIFICATION_ID);