textview 设置指定内容下划线

String treaty="서비스 이용약관,개인정보 취급 방침에 동의합니다.";SpannableString spannableString=new SpannableString(treaty);spannableString.setSpan(new UnderlineSpan(),0,8,0);spannableString.setSpan(new UnderlineSpan(),8,17,0);mTreatyCheckBox.setText(spannableString);