如何在flutter中用listview builder制作动态单选按钮？

class MyListView extends StatefulWidget {
  @override
  _MyListViewState createState() => _MyListViewState();
}

class _MyListViewState extends State<MyListView> {
  int _selectedIndex = -1; // 当前选中的选项索引

  List<String> _options = [
    "选项1",
    "选项2",
    "选项3",
    "选项4",
  ];

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: _options.length,
      itemBuilder: (BuildContext context, int index) {
        return RadioListTile(
          title: Text(_options[index]),
          value: index,
          groupValue: _selectedIndex,
          onChanged: (int? value) {
            setState(() {
              _selectedIndex = value!;
            });
          },
        );
      },
    );
  }
}