AppFlowy/frontend/appflowy_flutter/packages/appflowy_ui/example/lib/main.dart

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

import 'src/avatar/avatar_page.dart';
import 'src/buttons/buttons_page.dart';
import 'src/dropdown_menu/dropdown_menu_page.dart';
import 'src/menu/menu_page.dart';
import 'src/modal/modal_page.dart';
import 'src/textfield/textfield_page.dart';

enum ThemeMode {
  light,
  dark,
}

final themeMode = ValueNotifier(ThemeMode.light);

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

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

  @override
  Widget build(BuildContext context) {
    return ValueListenableBuilder(
      valueListenable: themeMode,
      builder: (context, themeMode, child) {
        final themeBuilder = AppFlowyDefaultTheme();
        final themeData =
            themeMode == ThemeMode.light ? ThemeData.light() : ThemeData.dark();

        return AnimatedAppFlowyTheme(
          data: themeMode == ThemeMode.light
              ? themeBuilder.light()
              : themeBuilder.dark(),
          child: MaterialApp(
            debugShowCheckedModeBanner: false,
            title: 'AppFlowy UI Example',
            theme: themeData.copyWith(
              visualDensity: VisualDensity.standard,
            ),
            home: const MyHomePage(
              title: 'AppFlowy UI',
            ),
          ),
        );
      },
    );
  }
}

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

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  final tabs = [
    Tab(text: 'Button'),
    Tab(text: 'TextField'),
    Tab(text: 'Modal'),
    Tab(text: 'Avatar'),
    Tab(text: 'Menu'),
    Tab(text: 'Dropdown Menu'),
  ];

  @override
  Widget build(BuildContext context) {
    final theme = AppFlowyTheme.of(context);
    return DefaultTabController(
      length: tabs.length,
      child: Scaffold(
        appBar: AppBar(
          backgroundColor: Theme.of(context).colorScheme.inversePrimary,
          title: Text(
            widget.title,
            style: theme.textStyle.title.enhanced(
              color: theme.textColorScheme.primary,
            ),
          ),
          actions: [
            IconButton(
              icon: Icon(
                Theme.of(context).brightness == Brightness.light
                    ? Icons.dark_mode
                    : Icons.light_mode,
              ),
              onPressed: _toggleTheme,
              tooltip: 'Toggle theme',
            ),
          ],
        ),
        body: TabBarView(
          children: [
            ButtonsPage(),
            TextFieldPage(),
            ModalPage(),
            AvatarPage(),
            MenuPage(),
            DropdownMenuPage(),
          ],
        ),
        bottomNavigationBar: TabBar(
          tabs: tabs,
        ),
        floatingActionButton: null,
      ),
    );
  }

  void _toggleTheme() {
    themeMode.value =
        themeMode.value == ThemeMode.light ? ThemeMode.dark : ThemeMode.light;
  }
}