Flutter bottom sheet demo

import 'package:example/modals/circular_modal.dart';
import 'package:example/web_frame.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

import 'package:modal_bottom_sheet/modal_bottom_sheet.dart';

import 'modals/floating_modal.dart';
import 'modals/modal_complex_all.dart';
import 'modals/modal_fit.dart';
import 'modals/modal_inside_modal.dart';
import 'modals/modal_will_scope.dart';
import 'modals/modal_with_navigator.dart';
import 'modals/modal_with_nested_scroll.dart';
import 'modals/modal_with_scroll.dart';
import 'modals/modal_with_page_view.dart';

import 'examples/cupertino_share.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData(platform: TargetPlatform.iOS),
      darkTheme: ThemeData.dark().copyWith(platform: TargetPlatform.iOS),
      title: 'BottomSheet Modals',
      builder: (context, Widget? child) => WebFrame(
        child: CupertinoTheme(
          data: CupertinoThemeData(
            brightness: Theme.of(context).brightness,
            scaffoldBackgroundColor: CupertinoColors.systemBackground,
          ),
          child: child!,
        ),
      ),
      onGenerateRoute: (RouteSettings settings) {
        switch (settings.name) {
          case '/':
            return MaterialWithModalsPageRoute(
                builder: (_) => MyHomePage(title: 'Flutter Demo Home Page'),
                settings: settings);
        }
        return MaterialPageRoute(
          builder: (context) => Scaffold(
            body: CupertinoScaffold(
              body: Builder(
                builder: (context) => CupertinoPageScaffold(
                  navigationBar: CupertinoNavigationBar(
                    transitionBetweenRoutes: false,
                    middle: Text('Normal Navigation Presentation'),
                    trailing: GestureDetector(
                      child: Icon(Icons.arrow_upward),
                      onTap: () =>
                          CupertinoScaffold.showCupertinoModalBottomSheet(
                        expand: true,
                        context: context,
                        backgroundColor: Colors.transparent,
                        builder: (context) => Stack(
                          children: <Widget>[
                            ModalWithScroll(),
                            Positioned(
                              height: 40,
                              left: 40,
                              right: 40,
                              bottom: 20,
                              child: MaterialButton(
                                onPressed: () => Navigator.of(context).popUntil(
                                    (route) => route.settings.name == '/'),
                                child: Text('Pop back home'),
                              ),
                            )
                          ],
                        ),
                      ),
                    ),
                  ),
                  child: Center(
                    child: Container(),
                  ),
                ),
              ),
            ),
          ),
          settings: settings,
        );
      },
      debugShowCheckedModeBanner: false,
    );
  }
}

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

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Material(
      child: Scaffold(
        body: CupertinoPageScaffold(
          navigationBar: CupertinoNavigationBar(
            transitionBetweenRoutes: false,
            middle: Text('iOS13 Modal Presentation'),
            trailing: GestureDetector(
              child: Icon(Icons.arrow_forward),
              onTap: () => Navigator.of(context).pushNamed('ss'),
            ),
          ),
          child: SizedBox.expand(
            child: SingleChildScrollView(
              primary: true,
              child: SafeArea(
                bottom: false,
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.stretch,
                  mainAxisSize: MainAxisSize.min,
                  children: <Widget>[
                    ListTile(
                        title: Text('Cupertino Photo Share Example'),
                        onTap: () => Navigator.of(context).push(
                            MaterialWithModalsPageRoute(
                                builder: (context) => CupertinoSharePage()))),
                    section('STYLES'),
                    ListTile(
                      title: Text('Material fit'),
                      onTap: () => showMaterialModalBottomSheet(
                        expand: false,
                        context: context,
                        backgroundColor: Colors.transparent,
                        builder: (context) => ModalFit(),
                      ),
                    ),
                    ListTile(
                      title: Text('Bar Modal'),
                      onTap: () => showBarModalBottomSheet(
                        expand: true,
                        context: context,
                        backgroundColor: Colors.transparent,
                        builder: (context) => ModalInsideModal(),
                      ),
                    ),
                    ListTile(
                      title: Text('Avatar Modal'),
                      onTap: () => showAvatarModalBottomSheet(
                        expand: true,
                        context: context,
                        backgroundColor: Colors.transparent,
                        builder: (context) => ModalInsideModal(),
                      ),
                    ),
                    ListTile(
                      title: Text('Float Modal'),
                      onTap: () => showFloatingModalBottomSheet(
                        context: context,
                        builder: (context) => ModalFit(),
                      ),
                    ),
                    ListTile(
                      title: Text('Cupertino Modal fit'),
                      onTap: () => showCupertinoModalBottomSheet(
                        expand: false,
                        context: context,
                        backgroundColor: Colors.transparent,
                        builder: (context) => ModalFit(),
                      ),
                    ),
                    section('COMPLEX CASES'),
                    ListTile(
                        title: Text('Cupertino Small Modal forced to expand'),
                        onTap: () => showCupertinoModalBottomSheet(
                              expand: true,
                              context: context,
                              backgroundColor: Colors.transparent,
                              builder: (context) => ModalFit(),
                            )),
                    ListTile(
                      title: Text('Reverse list'),
                      onTap: () => showBarModalBottomSheet(
                        expand: true,
                        context: context,
                        backgroundColor: Colors.transparent,
                        builder: (context) => ModalInsideModal(reverse: true),
                      ),
                    ),
                    ListTile(
                      title: Text('Cupertino Modal inside modal'),
                      onTap: () => showCupertinoModalBottomSheet(
                        expand: true,
                        context: context,
                        backgroundColor: Colors.transparent,
                        builder: (context) => ModalInsideModal(),
                      ),
                    ),
                    ListTile(
                        title: Text('Cupertino Modal with inside navigation'),
                        onTap: () => showCupertinoModalBottomSheet(
                              expand: true,
                              context: context,
                              backgroundColor: Colors.transparent,
                              builder: (context) => ModalWithNavigator(),
                            )),
                    ListTile(
                      title:
                          Text('Cupertino Navigator + Scroll + WillPopScope'),
                      onTap: () => showCupertinoModalBottomSheet(
                        expand: true,
                        context: context,
                        backgroundColor: Colors.transparent,
                        builder: (context) => ComplexModal(),
                      ),
                    ),
                    ListTile(
                      title: Text('Modal with WillPopScope'),
                      onTap: () => showCupertinoModalBottomSheet(
                        expand: true,
                        context: context,
                        backgroundColor: Colors.transparent,
                        builder: (context) => ModalWillScope(),
                      ),
                    ),
                    ListTile(
                      title: Text('Modal with Nested Scroll'),
                      onTap: () => showCupertinoModalBottomSheet(
                        expand: true,
                        context: context,
                        builder: (context) => NestedScrollModal(),
                      ),
                    ),
                    ListTile(
                      title: Text('Modal with PageView'),
                      onTap: () => showBarModalBottomSheet(
                        expand: true,
                        context: context,
                        builder: (context) => ModalWithPageView(),
                      ),
                    ),
                    SizedBox(
                      height: 60,
                    )
                  ],
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }

  Widget section(String title) {
    return Padding(
      padding: EdgeInsets.fromLTRB(16, 20, 16, 8),
      child: Text(
        title,
        style: Theme.of(context).textTheme.caption,
      ),
    );
  }
}