Warning: file_get_contents(/data/phpspider/zhask/data//catemap/7/user-interface/2.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/ruby-on-rails-3/4.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
User interface 如何在垂直移动的FieldManager中保持静态背景?黑莓编程_User Interface_Blackberry_Background - Fatal编程技术网

User interface 如何在垂直移动的FieldManager中保持静态背景?黑莓编程

User interface 如何在垂直移动的FieldManager中保持静态背景?黑莓编程,user-interface,blackberry,background,User Interface,Blackberry,Background,我想制作一个带有“垂直条目”的应用程序,我想在你上下查看条目时背景保持静止,我使用以下代码: VerticalFieldManager BGVFM = new VerticalFieldManager(VerticalFieldManager.USE_ALL_WIDTH | VerticalFieldManager.USE_ALL_HEIGHT) { public void paint(Graphics graphics) { graphics.drawBitmap(0,

我想制作一个带有“垂直条目”的应用程序,我想在你上下查看条目时背景保持静止,我使用以下代码:

VerticalFieldManager BGVFM = new VerticalFieldManager(VerticalFieldManager.USE_ALL_WIDTH | VerticalFieldManager.USE_ALL_HEIGHT) {
    public void paint(Graphics graphics) {
        graphics.drawBitmap(0, 0, Display.getWidth(), Display.getHeight(), fondo, 0, 0);
        super.paint(graphics);
    }
};

...

add(BGVFM)

但是,如果我滚动,图像。是否可以执行我想执行的操作?

请将您正在使用的所有代码粘贴到屏幕上。也许你的代码还可以,但是VerticalFieldManager本身在移动,因此背景图像也在移动。如果是这样的话,那么您可以像在VerticalFieldManager中那样覆盖屏幕的绘制方法。哦!问题解决了!非常感谢你!很抱歉耽搁了!我在旅行,没有时间检查!再次感谢你!