如何用AutomaticKeepAliveClientMixin重新加载颤动StatefulWidget？

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('Keep Alive Example')),
        body: MyListView(),
      ),
    );
  }
}

class MyListView extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: 100,
      itemBuilder: (context, index) {
        return MyStatefulWidget(key: ValueKey(index));
      },
    );
  }
}

class MyStatefulWidget extends StatefulWidget {
  final Key key;

  MyStatefulWidget({required this.key}) : super(key: key);

  @override
  _MyStatefulWidgetState createState() => _MyStatefulWidgetState();
}

class _MyStatefulWidgetState extends State<MyStatefulWidget>
    with AutomaticKeepAliveClientMixin {
  int _counter = 0;

  @override
  void initState() {
    super.initState();
    // 初始化状态
  }

  @override
  void didUpdateWidget(covariant MyStatefulWidget oldWidget) {
    super.didUpdateWidget(oldWidget);
    // widget 更新时的处理
  }

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    super.build(context); // 必须调用，以确保 keep alive 功能生效
    return ListTile(
      title: Text('Counter $_counter'),
      onTap: _incrementCounter,
    );
  }

  @override
  bool get wantKeepAlive => true; // 返回 true 表示需要保持状态
}