答案 0 :(得分:1)
使用
yourTextView.setPaintFlags(yourTextView.getPaintFlags() | Paint.UNDERLINE_TEXT_FLAG);
yourTextView.setText(yourString)
或
SpannableString content = new SpannableString(yourString);
content.setSpan(new UnderlineSpan(), 0, yourString.length(), 0);
yourTextView.setText(content);