android 设置textview中划线效果
textView.getPaint().setFlags(Paint. UNDERLINE_TEXT_FLAG ); //下划线
textView.getPaint().setAntiAlias(true);//抗锯齿
textview.getPaint().setFlags(Paint. STRIKE_THRU_TEXT_FLAG); //中划线
setFlags(Paint. STRIKE_THRU_TEXT_FLAG|Paint.ANTI_ALIAS_FLAG); // 设置中划线并加清晰
textView.getPaint().setFlags(0); // 取消设置的的划线