使用Listview.builder的RadioButton

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('ListView with RadioButton')),
        body: RadioButtonList(),
      ),
    );
  }
}

class RadioButtonList extends StatefulWidget {
  @override
  _RadioButtonListState createState() => _RadioButtonListState();
}

class _RadioButtonListState extends State<RadioButtonList> {
  int _selectedValue = 0;

  final List<String> options = ['Option 1', 'Option 2', 'Option 3'];

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

RadioListTile(
  key: ValueKey(index),
  title: Text(options[index]),
  value: index,
  groupValue: _selectedValue,
  onChanged: (value) {
    setState(() {
      _selectedValue = value;
    });
  },
)