first commit

lib/main.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:kettlebell_tracker/screens/home_screen.dart';
+import 'package:kettlebell_tracker/screens/settings_screen.dart';
+import 'package:kettlebell_tracker/screens/training_screen.dart';
+import 'package:kettlebell_tracker/screens/history_screen.dart';
+import 'package:kettlebell_tracker/theme/app_theme.dart';
+import 'package:sqflite_common_ffi/sqflite_ffi.dart';
+import 'dart:io';
+
+Future<void> main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+
+  if (Platform.isWindows || Platform.isLinux || Platform.isMacOS) {
+    sqfliteFfiInit();
+    databaseFactory = databaseFactoryFfi;
+  }
+
+  runApp(
+    const ProviderScope(child: MyApp()),
+  );
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Giant Programm Tracker',
+      theme: AppTheme.darkTheme,
+      home: const MainScreen(),
+      debugShowCheckedModeBanner: false,
+    );
+  }
+}
+
+class MainScreen extends ConsumerStatefulWidget {
+  const MainScreen({super.key});
+
+  @override
+  ConsumerState<MainScreen> createState() => _MainScreenState();
+}
+
+class _MainScreenState extends ConsumerState<MainScreen> {
+  int _selectedIndex = 0;
+
+  static const List<Widget> _widgetOptions = <Widget>[
+    HomeScreen(),
+    SettingsScreen(),
+    TrainingScreen(),
+    HistoryScreen(),
+  ];
+
+  void _onItemTapped(int index) {
+    setState(() {
+      _selectedIndex = index;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    return Scaffold(
+      body: Center(child: _widgetOptions.elementAt(_selectedIndex)),
+      bottomNavigationBar: BottomNavigationBar(
+        items: const <BottomNavigationBarItem>[
+          BottomNavigationBarItem(icon: Icon(Icons.home), label: 'Home'),
+          BottomNavigationBarItem(
+            icon: Icon(Icons.settings),
+            label: 'Einstellungen',
+          ),
+          BottomNavigationBarItem(
+            icon: Icon(Icons.sports_gymnastics),
+            label: 'Training',
+          ),
+          BottomNavigationBarItem(icon: Icon(Icons.history), label: 'Historie'),
+        ],
+        currentIndex: _selectedIndex,
+        onTap: _onItemTapped,
+        type: BottomNavigationBarType.fixed, // Important for more than 3 items
+        backgroundColor: theme.colorScheme.surface,
+        selectedItemColor: theme.colorScheme.primary,
+        unselectedItemColor: AppTheme.oneDarkTextWeak,
+      ),
+    );
+  }
+}