近似“高度"为0.包含TextView时的布局布局 [英] Approximating "height" of layout when contains TextView

问题描述

我想对列表项使用这种简单的布局:

I want to use this simple layout for items of list:

请注意，右边的灰色区域(我在下面的边框中绘制了红色矩形)必须是正方形:

Note the right gray area (which I draw red rectangle on its border in below) must be a square:

所以我必须近似布局的高度.它必须很简单，但是问题是TextView s的文本大小是使用sp单位设置的，而版面高度必须是dp单位设置的，我没有找到转换dp的方法和.xml文件中的sp.我也不想在运行时创建CustomView或更改版式的属性.所有事情都必须在.xml文件中完成.如何估算布局高度?

So I have to approximate the height of layout. It must be simple, but the problem is that the text size of TextViews is set by using sp unit and height of layout must be set by dp unit and I did not found a way for converting dp and sp in .xml file. Also I do not want to create a CustomView or change properties of layout at runtime. All things must be done in .xml file. How I can approximate height of layout?

推荐答案

请参见TextSize与TextView的宽度和高度不同. 因此，为"dp"中的所有视图提供固定的宽度-高度.修复了"sp"中的Text-Size，它完全适合TextView. P.S. ->在一些设备/仿真器中进行测试以进行验证.

See the TextSize is different from TextView's width and height. So Provide fixed width-height to all views in "dp". Fixed Text-Size in "sp" that fits perfectly inside TextView. P.S. -> test in a few devices/emulators to verify.

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