flutter_start/example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter_introduction_shared_preferences/flutter_introduction_shared_preferences.dart';
import 'package:flutter_start/flutter_start.dart';

import 'package:go_router/go_router.dart';

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

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

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

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

  @override
  Widget build(BuildContext context) {
    return startNavigatorUserStory(config, context);
  }
}

final GoRouter _router = GoRouter(
  routes: <RouteBase>[
    GoRoute(
      path: '/',
      builder: (BuildContext context, GoRouterState state) {
        return const Home();
      },
    ),
    ...getStartRoutes()
  ],
);

List<GoRoute> getStartRoutes() => getStartStoryRoutes(
      config,
    );

StartUserStoryConfiguration config = StartUserStoryConfiguration(
  // showIntroduction: false,
  splashScreenBuilder: (context, onFinish) => SplashScreen(
    onFinish: onFinish,
  ),
  homeEntry: const HomeEntry(),
  introductionOptions: IntroductionOptions(
    pages: [
      IntroductionPage(
        title: const Text('First page'),
        text: const Text('Wow a page'),
        graphic: const FlutterLogo(),
      ),
      IntroductionPage(
        title: const Text('Second page'),
        text: const Text('Another page'),
        graphic: const FlutterLogo(),
      ),
      IntroductionPage(
        title: const Text('Third page'),
        text: const Text('The final page of this app'),
        graphic: const FlutterLogo(),
      ),
    ],
    introductionTranslations: const IntroductionTranslations(
      skipButton: 'Skip it!',
      nextButton: 'Next',
      previousButton: 'Previous',
      finishButton: 'To the app!',
    ),
    tapEnabled: true,
    displayMode: IntroductionDisplayMode.multiPageHorizontal,
    buttonMode: IntroductionScreenButtonMode.text,
    indicatorMode: IndicatorMode.dash,
    skippable: true,
    buttonBuilder: (context, onPressed, child, type) =>
        ElevatedButton(onPressed: onPressed, child: child),
  ),
);

class SplashScreen extends StatefulWidget {
  const SplashScreen({
    required this.onFinish,
    super.key,
  });

  final Function() onFinish;

  @override
  State<SplashScreen> createState() => _SplashScreenState();
}

class _SplashScreenState extends State<SplashScreen> {
  @override
  void initState() {
    Future.delayed(const Duration(seconds: 3), () {
      widget.onFinish();
    });
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("SplashScreen"),
      ),
      body: const Center(child: Text("SplashScreen")),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("HomeEntry"),
      ),
      body: const Center(child: Text("HomeEntry")),
    );
  }
}

class ExampleIntroductionDataProvider
    implements SharedPreferencesIntroductionDataProvider {
  @override
  String key = 'example';

  @override
  Future<void> setCompleted({bool value = true}) async {
    // ignore: void_checks
    return Future.value(false);
  }

  @override
  Future<bool> shouldShow() {
    // ignore: void_checks
    return Future.value(true);
  }
}