如何使用没有按钮的对话框并自动关闭？在BlackBerry上

    Timer timer = new Timer();
    timer.schedule(new TimerTask(){

        public void run()
        {
            if(TestScreen.this.isDisplayed())
            {
                synchronized (Application.getEventLock())
                {
                    TestScreen.this.close();
                }
            }
        }

    }, WAIT_TIME_IN_MILLISECONDS);

Status.show(String message) 

Status.show(String message, Bitmap bitmap, int time)