שליחת נתונים למסך

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      debugShowCheckedModeBanner: false,
      home: HomeScreen(),
    );
  }
}

class HomeScreen extends StatelessWidget {
  const HomeScreen({super.key});

  final List<Planet> planets = const [
    Planet(name: 'Mercury', moons: 0),
    Planet(name: 'Venus', moons: 0),
    Planet(name: 'Earth', moons: 1),
    Planet(name: 'Mars', moons: 2),
    Planet(name: 'Jupiter', moons: 95),
    Planet(name: 'Saturn', moons: 146),
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Planets')),
      body: ListView(
        children: [
          for (Planet planet in planets)
            ListTile(
              title: Text(planet.name),
              onTap: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(builder: (context) => const PlanetScreen()),
                );
              },
            ),
        ],
      ),
    );
  }
}

class PlanetScreen extends StatelessWidget {
  const PlanetScreen({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Mercury')),
      body: const Center(
        child: Text('Mercury has 0 moons'),
      ),
    );
  }
}

class Planet {
  final String name;
  final int moons;

  const Planet({required this.name, required this.moons});
}