// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() => runApp(
  const RootRestorationScope(restorationId: 'restorationId1', child: MyApp()),
);

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      initialRoute: '/',
      restorationScopeId: 'restorationId2',
      routes: <String, WidgetBuilder>{
        '/': (BuildContext context) =>
            MyHomePage(title: 'Flutter Demo First Page'),
        '/second': (BuildContext context) =>
            SecondPage(title: 'Flutter Demo Second Page'),
      },
      title: 'Flutter Demo',
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(widget.title)),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: () {
                Navigator.restorablePushNamed(context, '/second');
              },
              child: const Text('Next Page'),
            ),
          ],
        ),
      ),
    );
  }
}

class SecondPage extends StatelessWidget {
  const SecondPage({super.key, required this.title});

  final String title;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(title)),
      body: Center(
        child: ElevatedButton(
          onPressed: () {
            Navigator.restorablePushNamed(context, '/');
          },
          child: const Text('Return to home page'),
        ),
      ),
    );
  }
}