promotionLinkText = (TextView) this .findViewById(R.id. text_promotion_link );
中间加横线
promotionLinkText .getPaint().setFlags(Paint. STRIKE_THRU_TEXT_FLAG );
底部加横线：
promotionLinkText .getPaint().setFlags(Paint. UNDERLINE_TEXT_FLAG );原文：http://www.cnblogs.com/androidsj/p/4544024.html