如何在flutter中通过警报对话框更改地图的值时查看ListVIew上的动态值？

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Alert Dialog Example',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  List<String> dynamicValues = ['Value 1', 'Value 2', 'Value 3'];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter Alert Dialog Example'),
      ),
      body: ListView.builder(
        itemCount: dynamicValues.length,
        itemBuilder: (context, index) {
          return ListTile(
            title: Text(dynamicValues[index]),
          );
        },
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          _showAlertDialog();
        },
        child: Icon(Icons.add),
      ),
    );
  }

  void _showAlertDialog() {
    showDialog(
      context: context,
      builder: (BuildContext context) {
        String newValue = '';

        return AlertDialog(
          title: Text('Change Value'),
          content: TextField(
            onChanged: (value) {
              newValue = value;
            },
          ),
          actions: [
            FlatButton(
              child: Text('Cancel'),
              onPressed: () {
                Navigator.of(context).pop();
              },
            ),
            FlatButton(
              child: Text('OK'),
              onPressed: () {
                setState(() {
                  dynamicValues.add(newValue);
                });
                Navigator.of(context).pop();
              },
            ),
          ],
        );
      },
    );
  }
}