如何在flutter中修复RadioListTile列表？

class CustomRadioListTile extends StatefulWidget {
  @override
  _CustomRadioListTileState createState() => _CustomRadioListTileState();
}

class _CustomRadioListTileState extends State<CustomRadioListTile> {
  int selectedValue;

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        RadioListTile(
          title: Text('选项1'),
          value: 1,
          groupValue: selectedValue,
          onChanged: (value) {
            setState(() {
              selectedValue = value;
            });
          },
        ),
        RadioListTile(
          title: Text('选项2'),
          value: 2,
          groupValue: selectedValue,
          onChanged: (value) {
            setState(() {
              selectedValue = value;
            });
          },
        ),
        // 添加更多的RadioListTile
      ],
    );
  }
}

class MyPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter修复RadioListTile列表'),
      ),
      body: CustomRadioListTile(),
    );
  }
}