android TextView:动态设置背景颜色不起作用 [英] android TextView: setting the background color dynamically doesn't work

问题描述

以编程方式设置 android TextView 的背景颜色似乎不起作用.我错过了什么！

Setting the background color programatically of an android TextView doesn't seem to work. I'm I missing something!

TextView et = new TextView(activity);
et.setText("350");
et.setBackgroundColor(R.color.white);

我的 res/values 文件夹中也有这个文件 (colors.xml)

I also have this file (colors.xml) in my res/values folder

<resources>
        <color name="white">#ffffffff</color>
        <color name="black">#ff000000</color>
</resources>

:此外，设置文本颜色会导致 TextView 消失.

: Also, setting the text color causes the TextView to disappear.

TextView c1 = new TextView(activity);
c1.setTextColor(R.color.solid_red);
c1.setText("My Text");

推荐答案

使用et.setBackgroundResource(R.color.white);

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