Flutter:当一天发生变化时重建状态的最佳方式？

dependencies:
  flutter:
    sdk: flutter
  provider: ^6.0.0

import 'package:flutter/foundation.dart';

class AppProvider with ChangeNotifier {
  DateTime _currentDate = DateTime.now();

  DateTime get currentDate => _currentDate;

  void updateDate(DateTime newDate) {
    _currentDate = newDate;
    notifyListeners();
  }
}

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

void main() {
  runApp(
    ChangeNotifierProvider(
      create: (context) => AppProvider(),
      child: MyApp(),
    ),
  );
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter App',
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final appProvider = Provider.of<AppProvider>(context);

    return Scaffold(
      appBar: AppBar(
        title: Text('My App'),
      ),
      body: Center(
        child: Text('Current Date: ${appProvider.currentDate}'),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          // 当一天发生变化时，更新日期
          final newDate = DateTime.now();
          appProvider.updateDate(newDate);
        },
        child: Icon(Icons.refresh),
      ),
    );
  }
}