Java 将图像设置在第二个图像上

我是黑莓的新手，我正在开发一个黑莓应用程序，我在其中制作一个登录屏幕，其中一个白色条纹图像放在顶部，标志应该出现在该条纹上。所以，简单地说，我有两个水平场管理器为它和带它将显示良好，但标志是留在下面的带

这是我的代码：：

((VerticalFieldManager) getMainManager()).setBackground(BackgroundFactory.createSolidBackground(0xEDEDED));

        HorizontalFieldManager hfm =  new HorizontalFieldManager(Field.FIELD_VCENTER );
        HorizontalFieldManager hfm2 =  new HorizontalFieldManager(Field.FIELD_VCENTER );
        Bitmap Topstrip = new Bitmap(Display.getWidth(), Display.getHeight());
        Bitmap MoneLogo = new Bitmap(Display.getWidth(), Display.getHeight());
        boolean lowRes = Display.getWidth() <= 320;
        if (lowRes)
        {
            // The device has a low resolution screen size
            Topstrip = Bitmap.getBitmapResource("topstripbg.png");
        }
        else
        {
            Topstrip = Bitmap.getBitmapResource("topstripbg-mdpi.png");
            MoneLogo= Bitmap.getBitmapResource("logo72X72.png");
            // The device has a high resolution screen size

        }
        BitmapField TopstripimgField = new BitmapField(Topstrip);
        BitmapField MoneLogoimgField = new BitmapField(MoneLogo);

        hfm.add(TopstripimgField);
        hfm2.add(MoneLogoimgField);
        add(hfm);
        add(hfm2);

还请向我推荐最佳实践的良好UI教程

更新：

试试这个-

final Bitmap bg=Bitmap.getBitmapResource("background.png");
    VerticalFieldManager top = new VerticalFieldManager(Manager.NO_HORIZONTAL_SCROLL | Manager.NO_HORIZONTAL_SCROLLBAR | Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR | Field.USE_ALL_WIDTH){
        public void paint(Graphics graphics) {
            graphics.setBackgroundColor(Color.WHITE);
            graphics.clear();
            graphics.drawBitmap(0, 0, bg.getWidth(),
                    bg.getHeight(), bg, 0, 0);
            super.paint(graphics);
        }

    };


final Bitmap logo= Bitmap.getBitmapResource("logo.png");
top .add(new BitmapField(logo));
add(top);

来到

final Bitmap bg=Bitmap.getBitmapResource("background.png");
    VerticalFieldManager top = new VerticalFieldManager(Manager.NO_HORIZONTAL_SCROLL | Manager.NO_HORIZONTAL_SCROLLBAR | Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR | Field.USE_ALL_WIDTH){
        public void paint(Graphics graphics) {
            graphics.setBackgroundColor(Color.WHITE);
            graphics.clear();
            graphics.drawBitmap(0, 0, bg.getWidth(),
                    bg.getHeight(), bg, 0, 0);
            super.paint(graphics);
        }

    };


final Bitmap logo= Bitmap.getBitmapResource("logo.png");
top .add(new BitmapField(logo));
add(top);