How to use

setBackgroundColor

method

in

android.widget.RadioButton

@Override
public void setBackgroundColor(int color) {
  super.setBackgroundColor(color);
  if (mBackgroundHelper != null) {
    mBackgroundHelper.setBackgroundColor(color);
  }
}

  @Override
  public void onCheckedChanged(RadioGroup group, int checkedId) {
    // 取的是 tag 字符串值，需转换为颜色
    String color = (String) findViewById(checkedId).getTag();
    mDanmakuTextColor = Color.parseColor(color);
    mDanmakuCurColor.setBackgroundColor(mDanmakuTextColor);
  }
});

  @Override
  public void onCheckedChanged(RadioGroup group, int checkedId) {
    // 取的是 tag 字符串值，需转换为颜色
    String color = (String) findViewById(checkedId).getTag();
    mDanmakuTextColor = Color.parseColor(color);
    mDanmakuCurColor.setBackgroundColor(mDanmakuTextColor);
  }
});

 RadioButton rad;//initialize first!
//You can set the background color
rad.setBackgroundColor(Color.BLUE);
//Text color
rad.setTextColor(Color.WHITE);
//or highlight color
rad.setHighlightColor(Color.GREEN);

/**
 * 设置Tab样式
 *
 * @param rb      Tab项
 * @param checked 是否选中
 */
private void setTabStyle(RadioButton rb, boolean checked) {
  if (checked) {
    rb.setTextColor(mNavTextCheckedColor);
    if (null == mNavBgCheckedImg) {
      rb.setBackgroundColor(mNavBgCheckedColor);
    } else {
      rb.setBackgroundDrawable(mNavBgCheckedImg);
    }
  } else {
    rb.setTextColor(mNavTextDefaultColor);
    rb.setBackgroundColor(Color.TRANSPARENT);
    rb.setBackgroundDrawable(null);
  }
}

if (server.getRecordstatus()) {
  title.append("UP");
  rb[i].setBackgroundColor(ContextCompat.getColor(mActivity, R.color.label_color));
} else {
  title.append("DOWN");
  rb[i].setBackgroundColor(ContextCompat.getColor(mActivity, R.color.red_color));