refactor: Add UpdateLocaleToSettings.dart

lib/app_wrappers/UpdateLocaleToSettings.dart

@@ -0,0 +1,42 @@
+import 'package:flutter/material.dart';
+import 'package:locus/services/settings_service/index.dart';
+import 'package:provider/provider.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+
+class UpdateLocaleToSettings extends StatefulWidget {
+  const UpdateLocaleToSettings({super.key});
+
+  @override
+  State<UpdateLocaleToSettings> createState() => _UpdateLocaleToSettingsState();
+}
+
+class _UpdateLocaleToSettingsState extends State<UpdateLocaleToSettings> {
+  late final SettingsService _settings;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _settings = context.read<SettingsService>();
+    _settings.addListener(_updateLocale);
+  }
+
+  @override
+  void dispose() {
+    _settings.removeListener(_updateLocale);
+    super.dispose();
+  }
+
+  void _updateLocale() async {
+    _settings.localeName = AppLocalizations
+        .of(context)
+        .localeName;
+
+    await _settings.save();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return const SizedBox.shrink();
+  }
+}

lib/main.dart

@@ -11,6 +11,7 @@ import 'package:locus/app_wrappers/LocationHistoryUpdater.dart';
 import 'package:locus/app_wrappers/RegisterBackgroundListeners.dart';
 import 'package:locus/app_wrappers/UniLinksHandler.dart';
 import 'package:locus/app_wrappers/UpdateLastLocationToSettings.dart';
+import 'package:locus/app_wrappers/UpdateLocaleToSettings.dart';
 import 'package:locus/screens/locations_overview_screen_widgets/LocationFetchers.dart';
 import 'package:locus/services/app_update_service.dart';
 import 'package:locus/services/current_location_service.dart';
@@ -104,6 +105,7 @@ void main() async {
           UniLinksHandler(),
           UpdateLastLocationToSettings(),
           RegisterBackgroundListeners(),
+          UpdateLocaleToSettings(),
           App(),
         ],
       ),

lib/screens/LocationsOverviewScreen.dart

@@ -148,7 +148,6 @@ class _LocationsOverviewScreenState extends State<LocationsOverviewScreen>
       ..addPostFrameCallback((_) {
         _setLocationFromSettings();
         initQuickActions(context);
-        _updateLocaleToSettings();
         _showUpdateDialogIfRequired();
         _initLiveLocationUpdate();
         locationFetchers.fetchPreviewLocations();
@@ -438,13 +437,6 @@ class _LocationsOverviewScreenState extends State<LocationsOverviewScreen>
     });
   }
 
-  void _updateLocaleToSettings() {
-    final settingsService = context.read<SettingsService>();
-
-    settingsService.localeName = AppLocalizations.of(context).localeName;
-    settingsService.save();
-  }
-
   void _showUpdateDialogIfRequired() async {
     final l10n = AppLocalizations.of(context);
     final appUpdateService = context.read<AppUpdateService>();