如何在flutter中将数据传递到另一个页面？

class SourcePage extends StatelessWidget {
  final String data;

  SourcePage({required this.data});

  // ...
}

class DestinationPage extends StatelessWidget {
  final String data;

  DestinationPage({required this.data});

  // ...
}

// 在源页面中创建目标页面的实例并传递数据
Navigator.push(
  context,
  MaterialPageRoute(
    builder: (context) => DestinationPage(data: 'Hello Flutter'),
  ),
);

class SourcePage extends StatelessWidget {
  // ...

  void _navigateToDestinationPage(BuildContext context) {
    Navigator.pushNamed(
      context,
      '/destination',
      arguments: 'Hello Flutter',
    );
  }

  // ...
}

class DestinationPage extends StatelessWidget {
  // ...

  @override
  Widget build(BuildContext context) {
    final String data = ModalRoute.of(context)!.settings.arguments as String;

    // ...
  }
}

// 在应用程序的顶层定义路由表
MaterialApp(
  // ...
  routes: {
    '/destination': (context) => DestinationPage(),
  },
);

class DataProvider extends ChangeNotifier {
  String _data = '';

  String get data => _data;

  void updateData(String newData) {
    _data = newData;
    notifyListeners();
  }
}

class SourcePage extends StatelessWidget {
  // ...

  void _updateData(BuildContext context) {
    Provider.of<DataProvider>(context, listen: false).updateData('Hello Flutter');
  }

  // ...
}

class DestinationPage extends StatelessWidget {
  // ...

  @override
  Widget build(BuildContext context) {
    final String data = Provider.of<DataProvider>(context).data;

    // ...
  }
}