具有自定义高度的 BlackBerry 垂直居中 LabelField

发布于 2024-11-09 16:41:27 字数 523 浏览 0 评论 0原文

我有一个嵌套在 TableLayoutManager 行中的 LabelField。我希望该行具有特定的高度（与其位图背景的高度相同）。为了实现这一点，我更改了嵌套 LabelField 的layout() 方法：

LabelField lblHours = new LabelField(hours,
            Color.BLACK, Manager.FIELD_VCENTER) {
        protected void layout(int width, int height) {
            super.layout(width, 40 //height of the bitmap);
            setExtent(width, 40 //height of the bitmap);
        }
    };

这成功地增加了 TableLayoutManager 行大小。但是，一旦我这样做，LabelField 就不再在行内垂直居中。关于如何做到这一点有什么建议吗？

谢谢！

原文

I have a LabelField nested within a TableLayoutManager row. I want the row to be a specific height (the same height as its bitmap background). In order to achieve this, I changed the layout() method of the nested LabelField:

LabelField lblHours = new LabelField(hours,
            Color.BLACK, Manager.FIELD_VCENTER) {
        protected void layout(int width, int height) {
            super.layout(width, 40 //height of the bitmap);
            setExtent(width, 40 //height of the bitmap);
        }
    };

This successfully increased the TableLayoutManager row size. However, once I do this, the LabelField is no longer centered vertically within the row. Any suggestions on how to do that?

Thanks!

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

许一世地老天荒 2024-11-16 16:41:27

上面的答案有效，只需确保您为上述内容输入两个语句即可。如下例所示。

LabelField importanceLabel = new LabelField("Importance: ",LabelField.FIELD_VCENTER | LabelField.FIELD_RIGHT) {
          public void paint(Graphics g) { 
              g.setColor(0x145085); 
              super.paint(g); 
          } 
          protected void layout(int width, int height) {
              super.layout(Math.min(width, this.getFont().getAdvance(this.getText())), 26); //height of the bitmap);
              setExtent(Math.min(width, this.getFont().getAdvance(this.getText())), 26); //height of the bitmap);
          }
      };

这将是相同的回应.. 谢谢你们.. 的讨论。它帮助了我。

The above answer works just make sure that you put in two statements for the above.. as illustrated in the below example.

LabelField importanceLabel = new LabelField("Importance: ",LabelField.FIELD_VCENTER | LabelField.FIELD_RIGHT) {
          public void paint(Graphics g) { 
              g.setColor(0x145085); 
              super.paint(g); 
          } 
          protected void layout(int width, int height) {
              super.layout(Math.min(width, this.getFont().getAdvance(this.getText())), 26); //height of the bitmap);
              setExtent(Math.min(width, this.getFont().getAdvance(this.getText())), 26); //height of the bitmap);
          }
      };

This is going to be the same response.. and thank you guys.. for the discussion. It helped me.

回复收藏 0 原文

忆离笙 2024-11-16 16:41:27

尝试将 setExtent(width, 40) 更改为 setExtent(this.getWidth(), 40)。如果 getWidth() 尝试占用所有可用宽度（这就是您的 setExtent() 调用正在执行的操作），则这可能不起作用，并且由于文本将左对齐绘制，因此看起来您的字段不是'不居中，但实际上它只是占据了表格的整个单元格。或者，如果这不起作用，您可以执行 setExtent(Math.min(width, this.getFont().getAdvance(this.getText())), 40);

回复收藏 0 原文

~没有更多了~