feat: Add setting to disable map tab for battery savings

Add a new "Disable Map" toggle in settings that allows users to hide
the map tab entirely. This is useful for scenarios where the map is
not needed and battery conservation is a priority.

Changes:
- Add disableMap and disableMapDescription localized strings (all languages)
- Add isMapEnabled state to AppProvider with persistence
- Update HomeScreen to dynamically adjust tab count based on setting
- Make onNavigateToMap optional in MessagesTab and ContactsTab
- Add toggle switch in Settings screen under Interface section

lib/l10n/app_de.arb

@@ -217,6 +217,16 @@
     "description": "Beschreibung für die Einstellung des einfachen Modus"
   },
 
+  "disableMap": "Karte deaktivieren",
+  "@disableMap": {
+    "description": "Einstellung zum Deaktivieren des Karten-Tabs"
+  },
+
+  "disableMapDescription": "Karten-Tab ausblenden, um Akku zu sparen",
+  "@disableMapDescription": {
+    "description": "Beschreibung für die Einstellung zum Deaktivieren der Karte"
+  },
+
   "language": "Sprache",
   "@language": {
     "description": "Beschriftung der Spracheinstellung"

lib/l10n/app_en.arb

@@ -217,6 +217,16 @@
     "description": "Description for simple mode setting"
   },
 
+  "disableMap": "Disable Map",
+  "@disableMap": {
+    "description": "Setting to disable the map tab"
+  },
+
+  "disableMapDescription": "Hide the map tab to reduce battery usage",
+  "@disableMapDescription": {
+    "description": "Description for disable map setting"
+  },
+
   "language": "Language",
   "@language": {
     "description": "Language setting label"

lib/l10n/app_es.arb

@@ -217,6 +217,16 @@
     "description": "Descripción de la configuración del modo simple"
   },
 
+  "disableMap": "Desactivar mapa",
+  "@disableMap": {
+    "description": "Configuración para desactivar la pestaña del mapa"
+  },
+
+  "disableMapDescription": "Ocultar la pestaña del mapa para reducir el uso de batería",
+  "@disableMapDescription": {
+    "description": "Descripción de la configuración para desactivar el mapa"
+  },
+
   "language": "Idioma",
   "@language": {
     "description": "Etiqueta de la configuración de idioma"

lib/l10n/app_fr.arb

@@ -217,6 +217,16 @@
     "description": "Description du paramètre du mode simple"
   },
 
+  "disableMap": "Désactiver la carte",
+  "@disableMap": {
+    "description": "Paramètre pour désactiver l'onglet carte"
+  },
+
+  "disableMapDescription": "Masquer l'onglet carte pour réduire la consommation de batterie",
+  "@disableMapDescription": {
+    "description": "Description du paramètre pour désactiver la carte"
+  },
+
   "language": "Langue",
   "@language": {
     "description": "Libellé du paramètre de langue"

lib/l10n/app_hr.arb

@@ -79,6 +79,10 @@
 
   "simpleModeDescription": "Sakrij nevažne informacije u porukama i kontaktima",
 
+  "disableMap": "Onemogući kartu",
+
+  "disableMapDescription": "Sakrij karticu karte za uštedu baterije",
+
   "language": "Jezik",
 
   "chooseLanguage": "Odaberite jezik",

lib/l10n/app_it.arb

@@ -217,6 +217,16 @@
     "description": "Descrizione per l'impostazione della modalità semplice"
   },
 
+  "disableMap": "Disabilita mappa",
+  "@disableMap": {
+    "description": "Impostazione per disabilitare la scheda mappa"
+  },
+
+  "disableMapDescription": "Nascondi la scheda mappa per ridurre il consumo della batteria",
+  "@disableMapDescription": {
+    "description": "Descrizione per l'impostazione di disabilitazione mappa"
+  },
+
   "language": "Lingua",
   "@language": {
     "description": "Etichetta impostazione lingua"

lib/l10n/app_localizations.dart

@@ -342,6 +342,18 @@ abstract class AppLocalizations {
   /// **'Hide non-essential information in messages and contacts'**
   String get simpleModeDescription;
 
+  /// Setting to disable the map tab
+  ///
+  /// In en, this message translates to:
+  /// **'Disable Map'**
+  String get disableMap;
+
+  /// Description for disable map setting
+  ///
+  /// In en, this message translates to:
+  /// **'Hide the map tab to reduce battery usage'**
+  String get disableMapDescription;
+
   /// Language setting label
   ///
   /// In en, this message translates to:

lib/l10n/app_localizations_de.dart

@@ -137,6 +137,13 @@ class AppLocalizationsDe extends AppLocalizations {
   String get simpleModeDescription =>
       'Nicht wesentliche Informationen in Nachrichten und Kontakten ausblenden';
 
+  @override
+  String get disableMap => 'Karte deaktivieren';
+
+  @override
+  String get disableMapDescription =>
+      'Karten-Tab ausblenden, um Akku zu sparen';
+
   @override
   String get language => 'Sprache';
 

lib/l10n/app_localizations_en.dart

@@ -136,6 +136,13 @@ class AppLocalizationsEn extends AppLocalizations {
   String get simpleModeDescription =>
       'Hide non-essential information in messages and contacts';
 
+  @override
+  String get disableMap => 'Disable Map';
+
+  @override
+  String get disableMapDescription =>
+      'Hide the map tab to reduce battery usage';
+
   @override
   String get language => 'Language';
 

lib/l10n/app_localizations_es.dart

@@ -136,6 +136,13 @@ class AppLocalizationsEs extends AppLocalizations {
   String get simpleModeDescription =>
       'Ocultar información no esencial en mensajes y contactos';
 
+  @override
+  String get disableMap => 'Desactivar mapa';
+
+  @override
+  String get disableMapDescription =>
+      'Ocultar la pestaña del mapa para reducir el uso de batería';
+
   @override
   String get language => 'Idioma';
 

lib/l10n/app_localizations_fr.dart

@@ -137,6 +137,13 @@ class AppLocalizationsFr extends AppLocalizations {
   String get simpleModeDescription =>
       'Masquer les informations non essentielles dans les messages et les contacts';
 
+  @override
+  String get disableMap => 'Désactiver la carte';
+
+  @override
+  String get disableMapDescription =>
+      'Masquer l\'onglet carte pour réduire la consommation de batterie';
+
   @override
   String get language => 'Langue';
 

lib/l10n/app_localizations_hr.dart

@@ -136,6 +136,12 @@ class AppLocalizationsHr extends AppLocalizations {
   String get simpleModeDescription =>
       'Sakrij nevažne informacije u porukama i kontaktima';
 
+  @override
+  String get disableMap => 'Onemogući kartu';
+
+  @override
+  String get disableMapDescription => 'Sakrij karticu karte za uštedu baterije';
+
   @override
   String get language => 'Jezik';
 

lib/l10n/app_localizations_it.dart

@@ -136,6 +136,13 @@ class AppLocalizationsIt extends AppLocalizations {
   String get simpleModeDescription =>
       'Nascondi informazioni non essenziali nei messaggi e contatti';
 
+  @override
+  String get disableMap => 'Disabilita mappa';
+
+  @override
+  String get disableMapDescription =>
+      'Nascondi la scheda mappa per ridurre il consumo della batteria';
+
   @override
   String get language => 'Lingua';
 

lib/l10n/app_localizations_sl.dart

@@ -136,6 +136,13 @@ class AppLocalizationsSl extends AppLocalizations {
   String get simpleModeDescription =>
       'Skrij nepomembne informacije v sporočilih in kontaktih';
 
+  @override
+  String get disableMap => 'Onemogoči zemljevid';
+
+  @override
+  String get disableMapDescription =>
+      'Skrij zavihek z zemljevidom za varčevanje z baterijo';
+
   @override
   String get language => 'Jezik';
 

lib/l10n/app_sl.arb

@@ -79,6 +79,10 @@
 
   "simpleModeDescription": "Skrij nepomembne informacije v sporočilih in kontaktih",
 
+  "disableMap": "Onemogoči zemljevid",
+
+  "disableMapDescription": "Skrij zavihek z zemljevidom za varčevanje z baterijo",
+
   "language": "Jezik",
 
   "chooseLanguage": "Izberite jezik",

lib/providers/app_provider.dart

@@ -28,6 +28,9 @@ class AppProvider with ChangeNotifier {
   bool _isSimpleMode = true;
   bool get isSimpleMode => _isSimpleMode;
 
+  bool _isMapEnabled = true;
+  bool get isMapEnabled => _isMapEnabled;
+
   AppProvider({
     required this.connectionProvider,
     required this.contactsProvider,
@@ -40,6 +43,7 @@ class AppProvider with ChangeNotifier {
     _initializeTileCache();
     _initializeLocationTracking();
     _loadSimpleMode();
+    _loadMapEnabled();
     _syncDrawingsOnStartup(); // Sync drawings immediately after providers load
     _isInitialized = true;
   }
@@ -84,6 +88,29 @@ class AppProvider with ChangeNotifier {
     }
   }
 
+  /// Load map enabled setting from shared preferences
+  Future<void> _loadMapEnabled() async {
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      _isMapEnabled = prefs.getBool('map_enabled') ?? true;
+      notifyListeners();
+    } catch (e) {
+      debugPrint('Error loading map enabled setting: $e');
+    }
+  }
+
+  /// Toggle map on/off
+  Future<void> toggleMapEnabled(bool enabled) async {
+    try {
+      _isMapEnabled = enabled;
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.setBool('map_enabled', enabled);
+      notifyListeners();
+    } catch (e) {
+      debugPrint('Error saving map enabled setting: $e');
+    }
+  }
+
   /// Initialize tile cache service
   Future<void> _initializeTileCache() async {
     try {

lib/screens/home_screen.dart

@@ -47,20 +47,12 @@ class _HomeScreenState extends State<HomeScreen>
   int _currentIndex = 0;
   bool _isMapFullscreen = false;
   bool _showRxTxIndicators = true;
+  bool _isMapEnabled = true;
 
   @override
   void initState() {
     super.initState();
-    _tabController = TabController(length: 3, vsync: this);
+    _loadMapEnabledAndInitTabs();
-    _tabController.addListener(() {
-      setState(() {
-        _currentIndex = _tabController.index;
-        // Exit fullscreen when switching away from map tab
-        if (_currentIndex != 2) {
-          _isMapFullscreen = false;
-        }
-      });
-    });
     _loadRxTxPreference();
 
     // Show permission dialog after the first frame if needed
@@ -71,6 +63,63 @@ class _HomeScreenState extends State<HomeScreen>
     }
   }
 
+  Future<void> _loadMapEnabledAndInitTabs() async {
+    final prefs = await SharedPreferences.getInstance();
+    final mapEnabled = prefs.getBool('map_enabled') ?? true;
+    if (mapEnabled != _isMapEnabled) {
+      _isMapEnabled = mapEnabled;
+    }
+    _initTabController();
+    if (mounted) {
+      setState(() {});
+    }
+  }
+
+  void _initTabController() {
+    final tabCount = _isMapEnabled ? 3 : 2;
+    _tabController = TabController(length: tabCount, vsync: this);
+    _tabController.addListener(_onTabChanged);
+  }
+
+  void _onTabChanged() {
+    setState(() {
+      _currentIndex = _tabController.index;
+      // Exit fullscreen when switching away from map tab (only if map is enabled and is tab 2)
+      if (_isMapEnabled && _currentIndex != 2) {
+        _isMapFullscreen = false;
+      }
+    });
+  }
+
+  void _updateTabController(bool mapEnabled) {
+    if (_isMapEnabled == mapEnabled) return;
+
+    // Save current index before rebuilding
+    final oldIndex = _tabController.index;
+
+    // Remove old listener and dispose
+    _tabController.removeListener(_onTabChanged);
+    _tabController.dispose();
+
+    // Update state
+    _isMapEnabled = mapEnabled;
+
+    // Create new controller
+    final tabCount = mapEnabled ? 3 : 2;
+    _tabController = TabController(length: tabCount, vsync: this);
+    _tabController.addListener(_onTabChanged);
+
+    // Restore index (clamp to valid range)
+    if (oldIndex < tabCount) {
+      _tabController.index = oldIndex;
+      _currentIndex = oldIndex;
+    } else {
+      _currentIndex = tabCount - 1;
+    }
+
+    setState(() {});
+  }
+
   Future<void> _loadRxTxPreference() async {
     final prefs = await SharedPreferences.getInstance();
     if (mounted) {
@@ -82,6 +131,7 @@ class _HomeScreenState extends State<HomeScreen>
 
   @override
   void dispose() {
+    _tabController.removeListener(_onTabChanged);
     _tabController.dispose();
     super.dispose();
   }
@@ -225,8 +275,16 @@ class _HomeScreenState extends State<HomeScreen>
       messagesProvider.setLocalizations(localizations);
     }
 
+    // Check if map enabled setting changed and update tab controller
+    final appProvider = context.watch<AppProvider>();
+    if (_isMapEnabled != appProvider.isMapEnabled) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        _updateTabController(appProvider.isMapEnabled);
+      });
+    }
+
     // Determine if we should hide the UI (only in fullscreen on map tab)
-    final shouldHideUI = _isMapFullscreen && _currentIndex == 2;
+    final shouldHideUI = _isMapEnabled && _isMapFullscreen && _currentIndex == 2;
 
     return Scaffold(
       appBar: shouldHideUI
@@ -308,8 +366,17 @@ class _HomeScreenState extends State<HomeScreen>
       body: TabBarView(
         controller: _tabController,
         children: [
-          MessagesTab(onNavigateToMap: () => _tabController.animateTo(2)),
+          MessagesTab(
-          ContactsTab(onNavigateToMap: () => _tabController.animateTo(2)),
+            onNavigateToMap: _isMapEnabled
+                ? () => _tabController.animateTo(2)
+                : null,
+          ),
+          ContactsTab(
+            onNavigateToMap: _isMapEnabled
+                ? () => _tabController.animateTo(2)
+                : null,
+          ),
+          if (_isMapEnabled)
             MapTab(
               onFullscreenChanged: (isFullscreen) {
                 setState(() {
@@ -354,6 +421,7 @@ class _HomeScreenState extends State<HomeScreen>
                         ),
                         text: AppLocalizations.of(context)!.contacts,
                       ),
+                      if (_isMapEnabled)
                         Tab(
                           icon: const Icon(Icons.map),
                           text: AppLocalizations.of(context)!.map,

lib/screens/messages_tab.dart

@@ -18,9 +18,9 @@ import '../utils/toast_logger.dart';
 import '../l10n/app_localizations.dart';
 
 class MessagesTab extends StatefulWidget {
-  final VoidCallback onNavigateToMap;
+  final VoidCallback? onNavigateToMap;
 
-  const MessagesTab({super.key, required this.onNavigateToMap});
+  const MessagesTab({super.key, this.onNavigateToMap});
 
   @override
   State<MessagesTab> createState() => _MessagesTabState();
@@ -780,6 +780,7 @@ class _MessagesTabState extends State<MessagesTab> {
                             isHighlighted: isHighlighted,
                             onNavigateToMap: widget.onNavigateToMap,
                             onTap:
+                                widget.onNavigateToMap != null &&
                                     message.isSarMarker &&
                                     message.sarGpsCoordinates != null
                                 ? () {
@@ -789,9 +790,10 @@ class _MessagesTabState extends State<MessagesTab> {
                                       location: message.sarGpsCoordinates!,
                                       zoom: 15.0,
                                     );
-                                    widget.onNavigateToMap();
+                                    widget.onNavigateToMap?.call();
                                   }
-                                : message.isDrawing && message.drawingId != null
+                                : widget.onNavigateToMap != null &&
+                                    message.isDrawing && message.drawingId != null
                                 ? () {
                                     debugPrint('🗺️ [MessagesTab] Drawing tapped! ID: ${message.drawingId}');
                                     final mapProvider = context
@@ -802,7 +804,7 @@ class _MessagesTabState extends State<MessagesTab> {
                                       message.drawingId!,
                                       drawingProvider,
                                     );
-                                    widget.onNavigateToMap();
+                                    widget.onNavigateToMap?.call();
                                   }
                                 : null,
                           );

lib/screens/settings_screen.dart

@@ -528,6 +528,19 @@ class _SettingsScreenState extends State<SettingsScreen> {
               },
             ),
           ),
+          Consumer<AppProvider>(
+            builder: (context, appProvider, child) => SwitchListTile(
+              secondary: const Icon(Icons.map_outlined),
+              title: Text(AppLocalizations.of(context)!.disableMap),
+              subtitle: Text(
+                AppLocalizations.of(context)!.disableMapDescription,
+              ),
+              value: !appProvider.isMapEnabled,
+              onChanged: (value) async {
+                await appProvider.toggleMapEnabled(!value);
+              },
+            ),
+          ),
           ListTile(
             leading: const Icon(Icons.language),
             title: Text(AppLocalizations.of(context)!.language),