@9.1 second screen

import 'package:flutter/material.dart';
import 'package:flutter_ui_lesson/screens/third_screen.dart';

class SecondScreen extends StatelessWidget {
  const SecondScreen({Key? key}) : super(key: key);

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

            ElevatedButton(
              child: const Text('Go back first screen'),
              onPressed: (){
                Navigator.pop(context);
              },
            ),
          ],
        ),
      ),
    );
  }
}