flutter 圆形复选框，里面有文字

Question

How can I create round checkboxes with text inside? I want it like on the picture.

Answer 1

You can make a button that on pressed toggles a bool and based on if bool is true or false you can make the border be transparent or not. This may not be the best solution but it should work

class CustomCheckbox extends StatefulWidget {
  @override
  State<CustomCheckbox> createState() => _CustomCheckboxState();
}

class _CustomCheckboxState extends State<CustomCheckbox> {
  bool checked = false;
  @override

  Widget build(BuildContext context) {
    return RawMaterialButton(
      onPressed: () {
        setState(() {
          checked = !checked;
        });
      },
      splashColor: Colors.transparent,
      child: Text('AS', style: TextStyle(color: checked ? Colors.white : Colors.grey, fontSize: 20)),
      padding: EdgeInsets.all(13.0),
      shape: CircleBorder(side: BorderSide(color: checked ? Colors.yellowAccent : Colors.transparent)),
    );
  }
}

Answer 2

try using ClipOval in a row children

   ClipOval(
   child:
   Container(
   color: yourColor
   height: 10.0,
   width: 10.0,
   ))

Answer 3

  class Checkbox extends StatefulWidget {
  final String value;
  final bool check;
  const Checkbox({
   Key? key, required this.value, required this.check,
 }) : super(key: key);

  @override
 State<Checkbox> createState() => _CheckboxState();
  }

 class _CheckboxState extends State<Checkbox> {
 late bool check;
  @override
  void initState() {
  check = widget.check;
    super.initState();
}
  @override
 Widget build(BuildContext context) {
 return InkWell(
    onTap: (){
    setState(()=>check = !check);
   },
    child: Container(
    padding: EdgeInsets.all(6),
    alignment: Alignment.center,
    decoration: BoxDecoration(
      shape: BoxShape.circle,
      border: Border.all(color: check ? Colors.yellow : Colors.transparent, 
      width: 2),
        ),
         child: Text(widget.value, style: TextStyle(color: check ? Colors.white 
         : Colors.grey)),
       ),
      );
  }
 }