Flutter我可以在dropdown小工具中更改语言吗？

import 'package:flutter/material.dart';

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

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String selectedLanguage = 'English';

  List<String> languages = [
    'English',
    'Chinese',
    'Spanish',
  ];

  void changeLanguage(String language) {
    setState(() {
      selectedLanguage = language;
    });
    // 在这里执行根据语言更改应用程序设置的操作
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Language Selector'),
        ),
        body: Center(
          child: DropdownButton(
            value: selectedLanguage,
            items: languages.map((language) {
              return DropdownMenuItem(
                value: language,
                child: Text(language),
              );
            }).toList(),
            onChanged: (value) {
              changeLanguage(value);
            },
          ),
        ),
      ),
    );
  }
}