1.下划线
textView.getPaint().setFlags(Paint. UNDERLINE_TEXT_FLAG ); //下划线
2.单独做第一步,文字会出现锯齿,要加下面抗锯齿
textView.getPaint().setFlags(Paint. UNDERLINE_TEXT_FLAG|Paint.ANTI_ALIAS_FLAG );
或者textView.getPaint().setAntiAlias(true);//抗锯齿
3.中划线
textview.getPaint().setFlags(Paint. STRIKE_THRU_TEXT_FLAG);
原文地址:http://www.cnblogs.com/baron89/p/3740194.html