Added AlertDialogs for user feedback

lib/utility/local_storage_service.dart

@@ -68,7 +68,7 @@ class LocalStorageService {
   }
 
   /// Opens the file picker to save a JSON file with the current game data.
-  static Future<void> exportJsonFile() async {
+  static Future<bool> exportJsonFile() async {
     final jsonString = getJsonFile();
     try {
       final bytes = Uint8List.fromList(utf8.encode(jsonString));
@@ -79,14 +79,18 @@ class LocalStorageService {
         mimeType: MimeType.json,
       );
       print('Datei gespeichert: $result');
+      return true;
     } catch (e) {
       print('Fehler beim Speichern: $e');
+      return false;
     }
   }
 
+  /// Opens the file picker to import a JSON file and loads the game data from it.
   static Future<bool> importJsonFile() async {
     try {
       final result = await FilePicker.platform.pickFiles(
+        dialogTitle: 'Wähle eine Datei mit Spieldaten aus',
         type: FileType.custom,
         allowedExtensions: ['json'],
       );
@@ -108,7 +112,7 @@ class LocalStorageService {
         return true;
       } else {
         print('Der Dialog wurde abgebrochen');
-        return false;
+        return true;
       }
     } catch (e) {
       print('Fehler beim Importieren: $e');

lib/views/information_view.dart

@@ -83,11 +83,46 @@ class InformationView extends StatelessWidget {
                   ],
                 ),
                 CupertinoButton(
+                    sizeStyle: CupertinoButtonSize.medium,
                     child: const Text('Spieldaten exportieren'),
-                    onPressed: () => LocalStorageService.exportJsonFile()),
+                    onPressed: () async =>
+                        await LocalStorageService.exportJsonFile()
+                            ? null
+                            : showCupertinoDialog(
+                                context: context,
+                                builder: (context) => CupertinoAlertDialog(
+                                      title: const Text('Fehler'),
+                                      content: const Text(
+                                          'Datei konnte nicht exportiert werden.'),
+                                      actions: [
+                                        CupertinoDialogAction(
+                                          child: const Text('OK'),
+                                          onPressed: () =>
+                                              Navigator.pop(context),
+                                        ),
+                                      ],
+                                    ))),
                 CupertinoButton(
+                    sizeStyle: CupertinoButtonSize.medium,
                     child: const Text('Spieldaten importieren'),
-                    onPressed: () => LocalStorageService.importJsonFile()),
+                    onPressed: () async => {
+                          await LocalStorageService.importJsonFile()
+                              ? null
+                              : showCupertinoDialog(
+                                  context: context,
+                                  builder: (context) => CupertinoAlertDialog(
+                                        title: const Text('Fehler'),
+                                        content: const Text(
+                                            'Datei konnte nicht importiert werden.'),
+                                        actions: [
+                                          CupertinoDialogAction(
+                                            child: const Text('OK'),
+                                            onPressed: () =>
+                                                Navigator.pop(context),
+                                          ),
+                                        ],
+                                      ))
+                        }),
               ],
             ),
             Positioned(

pubspec.yaml

@@ -2,7 +2,7 @@ name: cabo_counter
 description: "Mobile app for the card game Cabo"
 publish_to: 'none'
 
-version: 0.1.3+107
+version: 0.1.5+108
 
 environment:
   sdk: ^3.5.4
@@ -11,20 +11,18 @@ dependencies:
   flutter:
     sdk: flutter
   cupertino_icons: ^1.0.8
-  font_awesome_flutter: ^10.8.0
-  url_launcher: any
-  package_info_plus: any
-  flutter_keyboard_visibility: ^6.0.0
-  path_provider: ^2.1.1
-  file_picker: any
+  file_picker: ^10.1.2
   file_saver: ^0.2.6
+  flutter_keyboard_visibility: ^6.0.0
+  font_awesome_flutter: ^10.8.0
+  package_info_plus: any
+  path_provider: ^2.1.1
   typed_data: ^1.3.2
-
+  url_launcher: any
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-
   flutter_lints: ^5.0.0
   test: ^1.25.15