Layout 在Blackberry主屏幕上设置无滚动

嗨，我在黑莓手机上开发了简单的主屏幕，也将其设置在背景图像和按钮上，但当我移动轨迹板时，所有形式都是滚动，我想停止滚动主屏幕。下面是主屏幕代码

Bitmap bitBg;
public ButtonDemo() {
    super();
    bitBg = Bitmap.getBitmapResource("background.png");
    VerticalFieldManager vfm = new VerticalFieldManager(
            VerticalFieldManager.USE_ALL_HEIGHT 
               | VerticalFieldManager.USE_ALL_WIDTH) {
        public void paint (Graphics g){
            g.drawBitmap(
                0, 0, 
                Graphics.getScreenWidth(), Graphics.getScreenHeight(), 
                bitBg,
                0, 0
            );
            super.paint(g);
        }
    };
    HorizontalFieldManager hfmPass = 
        new HorizontalFieldManager(HorizontalFieldManager.FIELD_HCENTER);
    VerticalFieldManager vfmpass =
        new VerticalFieldManager(VerticalFieldManager.NO_HORIZONTAL_SCROLLBAR);
    vfmpass.add(new ButtonField("Button One"));
    vfmpass.add(new ButtonField("Button two"));
    hfmPass.add(vfmpass);
    vfm.add(hfmPass);
    add(vfm);
}

---

在类构造函数中，插入：

public MyClass {   
  super(NO_VERTICAL_SCROLL);
}

这将使您的屏幕不会滚动。然后，如果只希望VerticalFieldManager滚动，只需将其设置为可滚动即可