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feat(01-02): create router, navigation shell, screens, and app shell test

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- GoRouter with StatefulShellRoute.indexedStack and 3 branches (Home, Rooms, Settings)
- AppShell with NavigationBar using localized labels and thematic icons
- HomeScreen with empty state and cross-navigation to Rooms tab
- RoomsScreen with empty state and placeholder action button
- SettingsScreen with SegmentedButton theme switcher and About section
- Widget test verifying 3 navigation destinations with correct German labels

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Jean-Luc Makiola
2026-03-15 20:04:59 +01:00
parent cd1ce21f3f
commit f2dd737e9e
6 changed files with 342 additions and 0 deletions
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42
lib/core/router/router.dart Normal file
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import 'package:go_router/go_router.dart';
import 'package:household_keeper/features/home/presentation/home_screen.dart';
import 'package:household_keeper/features/rooms/presentation/rooms_screen.dart';
import 'package:household_keeper/features/settings/presentation/settings_screen.dart';
import 'package:household_keeper/shell/app_shell.dart';
final router = GoRouter(
initialLocation: '/',
routes: [
StatefulShellRoute.indexedStack(
builder: (context, state, navigationShell) =>
AppShell(navigationShell: navigationShell),
branches: [
StatefulShellBranch(
routes: [
GoRoute(
path: '/',
builder: (context, state) => const HomeScreen(),
),
],
),
StatefulShellBranch(
routes: [
GoRoute(
path: '/rooms',
builder: (context, state) => const RoomsScreen(),
),
],
),
StatefulShellBranch(
routes: [
GoRoute(
path: '/settings',
builder: (context, state) => const SettingsScreen(),
),
],
),
],
),
],
);

49
lib/features/home/presentation/home_screen.dart Normal file
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import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:household_keeper/l10n/app_localizations.dart';
class HomeScreen extends StatelessWidget {
const HomeScreen({super.key});
@override
Widget build(BuildContext context) {
final l10n = AppLocalizations.of(context);
final theme = Theme.of(context);
return Center(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 32),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Icon(
Icons.checklist_rounded,
size: 80,
color: theme.colorScheme.onSurface.withValues(alpha: 0.4),
),
const SizedBox(height: 24),
Text(
l10n.homeEmptyTitle,
style: theme.textTheme.headlineSmall,
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
Text(
l10n.homeEmptyMessage,
style: theme.textTheme.bodyLarge?.copyWith(
color: theme.colorScheme.onSurface.withValues(alpha: 0.6),
),
textAlign: TextAlign.center,
),
const SizedBox(height: 24),
FilledButton.tonal(
onPressed: () => context.go('/rooms'),
child: Text(l10n.homeEmptyAction),
),
],
),
),
);
}
}

50
lib/features/rooms/presentation/rooms_screen.dart Normal file
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import 'package:flutter/material.dart';
import 'package:household_keeper/l10n/app_localizations.dart';
class RoomsScreen extends StatelessWidget {
const RoomsScreen({super.key});
@override
Widget build(BuildContext context) {
final l10n = AppLocalizations.of(context);
final theme = Theme.of(context);
return Center(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 32),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Icon(
Icons.door_front_door_rounded,
size: 80,
color: theme.colorScheme.onSurface.withValues(alpha: 0.4),
),
const SizedBox(height: 24),
Text(
l10n.roomsEmptyTitle,
style: theme.textTheme.headlineSmall,
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
Text(
l10n.roomsEmptyMessage,
style: theme.textTheme.bodyLarge?.copyWith(
color: theme.colorScheme.onSurface.withValues(alpha: 0.6),
),
textAlign: TextAlign.center,
),
const SizedBox(height: 24),
FilledButton.tonal(
onPressed: () {
// Room creation will be implemented in Phase 2
},
child: Text(l10n.roomsEmptyAction),
),
],
),
),
);
}
}

83
lib/features/settings/presentation/settings_screen.dart Normal file
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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:household_keeper/core/theme/theme_provider.dart';
import 'package:household_keeper/l10n/app_localizations.dart';
class SettingsScreen extends ConsumerWidget {
const SettingsScreen({super.key});
@override
Widget build(BuildContext context, WidgetRef ref) {
final l10n = AppLocalizations.of(context);
final theme = Theme.of(context);
final currentThemeMode = ref.watch(themeProvider);
return ListView(
children: [
// Section 1: Appearance (Darstellung)
Padding(
padding: const EdgeInsets.fromLTRB(16, 24, 16, 8),
child: Text(
l10n.settingsSectionAppearance,
style: theme.textTheme.titleMedium?.copyWith(
color: theme.colorScheme.primary,
),
),
),
ListTile(
title: Text(l10n.settingsThemeLabel),
subtitle: Padding(
padding: const EdgeInsets.only(top: 8),
child: SegmentedButton<ThemeMode>(
segments: [
ButtonSegment<ThemeMode>(
value: ThemeMode.system,
label: Text(l10n.themeSystem),
icon: const Icon(Icons.settings_suggest_outlined),
),
ButtonSegment<ThemeMode>(
value: ThemeMode.light,
label: Text(l10n.themeLight),
icon: const Icon(Icons.light_mode_outlined),
),
ButtonSegment<ThemeMode>(
value: ThemeMode.dark,
label: Text(l10n.themeDark),
icon: const Icon(Icons.dark_mode_outlined),
),
],
selected: {currentThemeMode},
onSelectionChanged: (selection) {
ref
.read(themeProvider.notifier)
.setThemeMode(selection.first);
},
),
),
),
const Divider(indent: 16, endIndent: 16, height: 32),
// Section 2: About (Ueber)
Padding(
padding: const EdgeInsets.fromLTRB(16, 8, 16, 8),
child: Text(
l10n.settingsSectionAbout,
style: theme.textTheme.titleMedium?.copyWith(
color: theme.colorScheme.primary,
),
),
),
ListTile(
title: Text(l10n.aboutAppName),
subtitle: Text(l10n.aboutTagline),
),
ListTile(
title: const Text('Version'),
subtitle: Text(l10n.aboutVersion('0.1.0')),
),
],
);
}
}

48
lib/shell/app_shell.dart Normal file
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import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:household_keeper/l10n/app_localizations.dart';
class AppShell extends StatelessWidget {
const AppShell({
required this.navigationShell,
super.key,
});
final StatefulNavigationShell navigationShell;
@override
Widget build(BuildContext context) {
final l10n = AppLocalizations.of(context);
return Scaffold(
body: navigationShell,
bottomNavigationBar: NavigationBar(
selectedIndex: navigationShell.currentIndex,
onDestinationSelected: (index) {
navigationShell.goBranch(
index,
initialLocation: index == navigationShell.currentIndex,
);
},
destinations: [
NavigationDestination(
icon: const Icon(Icons.checklist_outlined),
selectedIcon: const Icon(Icons.checklist),
label: l10n.tabHome,
),
NavigationDestination(
icon: const Icon(Icons.door_front_door_outlined),
selectedIcon: const Icon(Icons.door_front_door),
label: l10n.tabRooms,
),
NavigationDestination(
icon: const Icon(Icons.tune_outlined),
selectedIcon: const Icon(Icons.tune),
label: l10n.tabSettings,
),
],
),
);
}
}

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test/shell/app_shell_test.dart Normal file
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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:household_keeper/core/router/router.dart';
import 'package:household_keeper/l10n/app_localizations.dart';
void main() {
group('AppShell Navigation', () {
setUp(() {
SharedPreferences.setMockInitialValues({});
});
testWidgets('renders 3 navigation destinations with correct German labels',
(tester) async {
await tester.pumpWidget(
ProviderScope(
child: MaterialApp.router(
routerConfig: router,
localizationsDelegates: AppLocalizations.localizationsDelegates,
supportedLocales: const [Locale('de')],
locale: const Locale('de'),
),
),
);
await tester.pumpAndSettle();
// Verify 3 NavigationDestination widgets are rendered
expect(find.byType(NavigationDestination), findsNWidgets(3));
// Verify correct German labels from ARB (with umlauts)
expect(find.text('\u00dcbersicht'), findsOneWidget);
expect(find.text('R\u00e4ume'), findsOneWidget);
expect(find.text('Einstellungen'), findsOneWidget);
});
testWidgets('tapping a destination changes the selected tab',
(tester) async {
await tester.pumpWidget(
ProviderScope(
child: MaterialApp.router(
routerConfig: router,
localizationsDelegates: AppLocalizations.localizationsDelegates,
supportedLocales: const [Locale('de')],
locale: const Locale('de'),
),
),
);
await tester.pumpAndSettle();
// Initially on Home tab (index 0) -- verify home empty state is shown
expect(find.text('Noch nichts zu tun!'), findsOneWidget);
// Tap the Rooms tab (second destination)
await tester.tap(find.text('R\u00e4ume'));
await tester.pumpAndSettle();
// Verify we see Rooms content now
expect(find.text('Hier ist noch alles leer!'), findsOneWidget);
// Tap the Settings tab (third destination)
await tester.tap(find.text('Einstellungen'));
await tester.pumpAndSettle();
// Verify we see Settings content now
expect(find.text('Darstellung'), findsOneWidget);
});
});
}