Flutter 文字与边框(下划线)距离

TextField(
  decoration: InputDecoration(
    contentPadding: EdgeInsets.only(top: 2.0, bottom: 6.0),//设置文字内容与边框距离
    enabledBorder: UnderlineInputBorder(
        borderSide: BorderSide(
            width: 1,
            color: Color(0xffD5D5D5),
            style: BorderStyle.solid)),
  ),
),