Flutter - Push and Get value between routes

Question

How do I send the green string from the HomePage page to the ContaPage page?

I think it\'s so Navigator.of(context).pushNamed(\'/conta/green\'); but I do no

Answer 1

A better solution is already given on Flutter website, how to use:

Arguments

class ScreenArguments {
  final String title;
  final String message;

  ScreenArguments(this.title, this.message);
}

Extract arguments

class ExtractArgumentsScreen extends StatelessWidget {
  static const routeName = '/extractArguments';

  @override
  Widget build(BuildContext context) {
    final ScreenArguments args = ModalRoute.of(context).settings.arguments;
    return Scaffold(
      appBar: AppBar(
        title: Text(args.title),
      ),
      body: Center(
        child: Text(args.message),
      ),
    );
  }
}

Register Route

MaterialApp(
  //...
  routes: {
    ExtractArgumentsScreen.routeName: (context) => ExtractArgumentsScreen(),
    //...
  },     
);

Navigate

Navigator.pushNamed(
      context,
      ExtractArgumentsScreen.routeName,
      arguments: ScreenArguments(
        'Extract Arguments Screen',
        'This message is extracted in the build method.',
      ),
    );

Code copied from link.