first_screen.dart

class FirstScreen extends StatelessWidget {
  static const route = '/first';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('First Screen')),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            RaisedButton(
              onPressed: () {
                Navigator.of(
                  context,
                  // BottomNavigationBar ile diğer ekrana git
                  rootNavigator: false,
                ).pushNamed(PushedScreen.route);
              },
              child: Text('BottomNavigationBar ile sayfaya git'),
            ),
            RaisedButton(
              onPressed: () {
                Navigator.of(
                  context,
                  // BottomNavigationBar olmadan diğer ekrana git (Kök dizin)
                  rootNavigator: true,
                ).pushNamed(PushedScreen.route);
              },
              child: Text('BottomNavigationBar olmadan sayfaya git'),
            ),
          ],
        ),
      ),
    );
  }
}

fourth_screen.dart

class FourthScreen extends StatelessWidget {
  static const route = '/extra';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Extra Screen')),
      body: Center(
        child: RaisedButton(
          onPressed: () {
            // Push with bottom navigation visible
            Navigator.of(
              context,
              rootNavigator: true,
            ).pushNamed(SimpleScreen.route);
          },
          child: Text('Go to Simple Page'),
        ),
      ),
    );
  }
}

pushed_screen.dart

class PushedScreen extends StatelessWidget {
  static const route = '/first/pushed';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Pushed Screen')),
      body: Center(
        child: Text('Hello world!'),
      ),
    );
  }
}

second_screen.dart

class SecondScreen extends StatelessWidget {
  static const route = '/second';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Second Screen')),
      body: ListView.builder(
        controller: NavigationProvider.of(context)
            .screens[SECOND_SCREEN]
            .scrollController,
        itemBuilder: (context, index) {
          return ListTile(
            title: Text('Item: $index'),
          );
        },
      ),
    );
  }
}

simple_screen.dart

class SimpleScreen extends StatelessWidget {
  static const route = '/extra/simple';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Simple Screen"),
      ),
    );
  }
}

third_screen.dart

class ThirdScreen extends StatelessWidget {
  static const route = '/third';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Third Screen')),
      body: Center(
        child: FlutterLogo(
          size: 128,
        ),
      ),
    );
  }
}