@9.1 first_screen

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

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