Flutter Arguments in Named Routes

In Flutter, you can pass arguments between screens using named routes. This allows you to pass data between screens and customize the behavior of each screen based on the data it receives.

Here's an example of how to pass arguments between screens using named routes in Flutter

Define your named routes and their corresponding screens in your MaterialApp widget in main.dart

​import 'package:flutter/material.dart';
import 'package:flutter_blog/screens/home_screen.dart';
import 'package:flutter_blog/screens/post_screen.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Blog',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      initialRoute: '/',
      routes: {
        '/': (context) => HomeScreen(),
        '/post': (context) => PostScreen(),
      },
    );
  }
}
In this example, we have defined two named routes: '/' for the home screen and '/post' for the post screen.

Pass arguments to a named route using Navigator.pushNamed() and arguments:

​Navigator.pushNamed(
  context,
  '/post',
  arguments: {'post': post},
);
In this example, we are passing a post object as an argument to the post screen using the '/post' route.

Receive arguments from a named route using ModalRoute.of() and settings.arguments:

​class PostScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final args = ModalRoute.of(context)!.settings.arguments as Map<String, dynamic>;
    final post = args['post'];
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter Blog'),
      ),
      body: Center(
        child: Text(post.title),
      ),
    );
  }
}
In this example, we are receiving a post object as an argument from the '/' route and displaying its title in the post screen.

Run your app and test passing arguments between screens:

​flutter run
This is just a basic example of how to pass arguments between screens using named routes in Flutter. You can customize the arguments to fit your app's specific needs, such as passing multiple arguments or using different data types.