Android 改变一行文字其中几个字的颜色

/** * 将0.01变为红色 */private void setRedText(TextView tv_tips) {    SpannableStringBuilder builder = new SpannableStringBuilder("请在您账户中充值0.01元,进行身份验证");    ForegroundColorSpan span = new ForegroundColorSpan(Color.RED);    builder.setSpan(span, 8, 12, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);    tv_tips.setText(builder);}