Flutter :如何在列表视图构建器中使刚刚选定的值为true

import 'package:flutter/material.dart';

class MyListItem {
  String title;
  bool isSelected;

  MyListItem({required this.title, this.isSelected = false});
}

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

class _MyListViewState extends State<MyListView> {
  List<MyListItem> items = [
    MyListItem(title: 'Item 1'),
    MyListItem(title: 'Item 2'),
    MyListItem(title: 'Item 3'),
  ];

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: items.length,
      itemBuilder: (context, index) {
        return ListTile(
          title: Text(items[index].title),
          onTap: () {
            setState(() {
              // 将刚刚选定的值设为true
              items.forEach((item) => item.isSelected = false);
              items[index].isSelected = true;
            });
          },
          tileColor: items[index].isSelected ? Colors.blue : null,
        );
      },
    );
  }
}

void main() {
  runApp(MaterialApp(
    home: Scaffold(
      appBar: AppBar(
        title: Text('My List View'),
      ),
      body: MyListView(),
    ),
  ));
}