thingy.dart

import 'package:flutter/material.dart';

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Navigation Demo',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: const FirstScreen(),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('First Screen')),
      body: Center(
        child: ElevatedButton(
          child: const Text('Go to Second Screen'),
          onPressed: () {
            Navigator.push(
              context,
              MaterialPageRoute(builder: (context) => const SecondScreen()),
            );
          },
        ),
      ),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Second Screen')),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          children: [
            const TextField(
              decoration: InputDecoration(hintText: 'Enter text here'),
            ),
            const SizedBox(height: 20),
            ElevatedButton(
              onPressed: () {
                Navigator.pop(context);
              },
              child: const Text('Go back'),
            ),
          ],
        ),
      ),
    );
  }
}