我正在 android 中创建一个测验应用程序.对于每个问题，我都设置了 4 个单选按钮供用户单击.如何为每个问题动态更改单选按钮的文本?这些单选按钮的文本存储在原始文本文件中.

I am creating a quiz application in android.For each question I have set up 4 radio buttons for the user to click. How do i change the text of the radiobutton dynamically for each question? The text for these radio button are stored in a raw text file.

推荐答案

给你.

我设置了 4 个单选按钮供用户点击.

I have set up 4 radio buttons for the user to click.

你一定是在radioGroup中定义的吧?

You must have defined them in radioGroup,right?

然后您可以在 RadioGroup 中进行迭代以将名称设置为 RadioButton或者您可以通过索引获取 RadioButton 并为其设置名称.

Then you can iterate in RadioGroup to set names to RadioButton or you can get RadioButton by index and set name to it.

RadioGroup radioGroup = (RadioGroup)findViewById(R.id.group);

    for (int i = 0; i < radioGroup .getChildCount(); i++) {
            ((RadioButton) radioGroup.getChildAt(i)).setText(String.valueOf(i));
        }