如何在Flutter中默认选中的扩展瓦片列表中设置单选按钮？

class MyCheckboxListTile extends StatefulWidget {
  @override
  _MyCheckboxListTileState createState() => _MyCheckboxListTileState();
}

class _MyCheckboxListTileState extends State<MyCheckboxListTile> {
  bool _isChecked = false;

  void _toggleCheckbox(bool value) {
    setState(() {
      _isChecked = value;
    });
  }

  @override
  Widget build(BuildContext context) {
    return CheckboxListTile(
      title: Text('瓦片标题'),
      value: _isChecked,
      onChanged: _toggleCheckbox,
    );
  }
}

ListView.builder(
  itemCount: 5, // 假设有5个瓦片
  itemBuilder: (BuildContext context, int index) {
    return MyCheckboxListTile();
  },
)