边框

有边框的圆角

TextField(
  decoration: InputDecoration(
    contentPadding: EdgeInsets.all(10.0),//可以决定高度
    border: OutlineInputBorder(borderRadius: BorderRadius.circular(14.0),),//边框椭圆
  ),
),

无边框圆角填充色

TextField(
  decoration: InputDecoration(
    contentPadding: EdgeInsets.all(10.0),
    border: OutlineInputBorder(
      borderRadius: BorderRadius.circular(14.0),
      borderSide: BorderSide.none),
    filled: true,
    fillColor: colorGray243
  ),
),

其他