android - Android: set background color of radiobutton text programatically

Question

When i try to change background color of radio button text programatically like this:

rb.setBackgroundResource(R.drawable.mycustombackground);

The background covers both the button and the text.
I only want to change the background color of the text part (not the radio button).

How to achieve that?

Answer 1

好的，让我们看看它是否有效：

Spannable span = new SpannableStringBuilder(rb.getText().toString());
span.setSpan(new BackgroundColorSpan(Color.RED), 0, rb.getText().toString().length(), SpannableStringBuilder.SPAN_INCLUSIVE_INCLUSIVE);
rb.setText(span);

将 Color.RED 替换为您想要的任何颜色。不要忘记，如果需要，您必须从资源中获取它。我认为它不适用于可绘制对象。