如何在listview.builder中管理列表的选定变量

import 'package:flutter/material.dart';

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

class _MyListViewState extends State<MyListView> {
  List<bool> selectedList = List.generate(10, (index) => false);

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: 10,
      itemBuilder: (context, index) {
        return ListTile(
          title: Text('Item $index'),
          tileColor: selectedList[index] ? Colors.blue : null,
          onTap: () {
            setState(() {
              selectedList[index] = !selectedList[index];
            });
          },
        );
      },
    );
  }
}

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