feat: add haptic feedback for various user interactions

lib/presentation/views/main_menu/custom_navigation_bar.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:tallee/core/adaptive_page_route.dart';
 import 'package:tallee/core/custom_theme.dart';
 import 'package:tallee/l10n/generated/app_localizations.dart';
@@ -55,8 +56,9 @@ class _CustomNavigationBarState extends State<CustomNavigationBar>
         actions: [
           IconButton(
             onPressed: () async {
-              await Navigator.push(
-                context,
+              final navigator = Navigator.of(context);
+              await HapticFeedback.selectionClick();
+              await navigator.push(
                 adaptivePageRoute(builder: (_) => const SettingsView()),
               );
               setState(() {
@@ -125,7 +127,8 @@ class _CustomNavigationBarState extends State<CustomNavigationBar>
   }
 
   /// Handles tab tap events. Updates the current [index] state.
-  void onTabTapped(int index) {
+  void onTabTapped(int index) async {
+    await HapticFeedback.selectionClick();
     setState(() {
       currentIndex = index;
     });

lib/presentation/views/main_menu/group_view/create_group_view.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:provider/provider.dart';
 import 'package:tallee/core/constants.dart';
 import 'package:tallee/core/custom_theme.dart';
@@ -133,8 +134,10 @@ class _CreateGroupViewState extends State<CreateGroupView> {
     if (!mounted) return;
 
     if (success) {
+      await HapticFeedback.successNotification();
       Navigator.pop(context, updatedGroup);
     } else {
+      await HapticFeedback.errorNotification();
       showSnackbar(
         message: widget.groupToEdit == null
             ? loc.error_creating_group

lib/presentation/views/main_menu/group_view/group_detail_view.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:intl/intl.dart';
 import 'package:provider/provider.dart';
 import 'package:tallee/core/adaptive_page_route.dart';
@@ -68,6 +69,7 @@ class _GroupDetailViewState extends State<GroupDetailView> {
           IconButton(
             icon: const Icon(Icons.delete),
             onPressed: () async {
+              await HapticFeedback.selectionClick();
               showDialog<bool>(
                 context: context,
                 builder: (context) => CustomAlertDialog(
@@ -75,11 +77,17 @@ class _GroupDetailViewState extends State<GroupDetailView> {
                   content: Text(loc.this_cannot_be_undone),
                   actions: [
                     CustomDialogAction(
-                      onPressed: () => Navigator.of(context).pop(true),
+                      onPressed: () async {
+                        await HapticFeedback.warningNotification();
+                        Navigator.of(context).pop(true);
+                      },
                       text: loc.delete,
                     ),
                     CustomDialogAction(
-                      onPressed: () => Navigator.of(context).pop(false),
+                      onPressed: () async {
+                        await HapticFeedback.selectionClick();
+                        Navigator.of(context).pop(false);
+                      },
                       buttonType: ButtonType.secondary,
                       text: loc.cancel,
                     ),

lib/presentation/views/main_menu/group_view/group_view.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:provider/provider.dart';
 import 'package:tallee/core/adaptive_page_route.dart';
 import 'package:tallee/core/constants.dart';
@@ -102,6 +103,7 @@ class _GroupViewState extends State<GroupView> {
               text: loc.create_group,
               icon: Icons.group_add,
               onPressed: () async {
+                await HapticFeedback.selectionClick();
                 await Navigator.push(
                   context,
                   adaptivePageRoute(

lib/presentation/views/main_menu/settings_view/settings_view.dart

@@ -2,6 +2,7 @@ import 'dart:io';
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:intl/intl.dart';
 import 'package:package_info_plus/package_info_plus.dart';
@@ -201,7 +202,8 @@ class _SettingsViewState extends State<SettingsView> {
                               children: [
                                 GestureDetector(
                                   child: const Icon(Icons.language),
-                                  onTap: () => {
+                                  onTap: () async => {
+                                    await HapticFeedback.lightImpact(),
                                     launchUrl(
                                       Uri.parse('https://liquid-dev.de'),
                                     ),
@@ -209,7 +211,8 @@ class _SettingsViewState extends State<SettingsView> {
                                 ),
                                 GestureDetector(
                                   child: const FaIcon(FontAwesomeIcons.github),
-                                  onTap: () => {
+                                  onTap: () async => {
+                                    await HapticFeedback.lightImpact(),
                                     launchUrl(
                                       Uri.parse(
                                         'https://github.com/liquiddevelopmentde',
@@ -223,9 +226,12 @@ class _SettingsViewState extends State<SettingsView> {
                                         ? CupertinoIcons.mail_solid
                                         : Icons.email,
                                   ),
-                                  onTap: () => launchUrl(
-                                    Uri.parse('mailto:hi@liquid-dev.de'),
-                                  ),
+                                  onTap: () async => {
+                                    await HapticFeedback.lightImpact(),
+                                    launchUrl(
+                                      Uri.parse('mailto:hi@liquid-dev.de'),
+                                    ),
+                                  },
                                 ),
                               ],
                             ),
@@ -266,20 +272,38 @@ class _SettingsViewState extends State<SettingsView> {
   void showImportSnackBar({
     required BuildContext context,
     required ImportResult result,
-  }) {
+  }) async {
     final loc = AppLocalizations.of(context);
     switch (result) {
       case ImportResult.success:
+        if (context.mounted) {
+          await HapticFeedback.successNotification();
+        }
         showSnackbar(context: context, message: loc.data_successfully_imported);
       case ImportResult.invalidSchema:
+        if (context.mounted) {
+          await HapticFeedback.errorNotification();
+        }
         showSnackbar(context: context, message: loc.invalid_schema);
       case ImportResult.fileReadError:
+        if (context.mounted) {
+          await HapticFeedback.errorNotification();
+        }
         showSnackbar(context: context, message: loc.error_reading_file);
       case ImportResult.canceled:
+        if (context.mounted) {
+          await HapticFeedback.errorNotification();
+        }
         showSnackbar(context: context, message: loc.import_canceled);
       case ImportResult.formatException:
+        if (context.mounted) {
+          await HapticFeedback.errorNotification();
+        }
         showSnackbar(context: context, message: loc.format_exception);
       case ImportResult.unknownException:
+        if (context.mounted) {
+          await HapticFeedback.errorNotification();
+        }
         showSnackbar(context: context, message: loc.unknown_exception);
     }
   }
@@ -291,13 +315,16 @@ class _SettingsViewState extends State<SettingsView> {
   void showExportSnackBar({
     required BuildContext context,
     required ExportResult result,
-  }) {
+  }) async {
     final loc = AppLocalizations.of(context);
     switch (result) {
       case ExportResult.success:
+        await HapticFeedback.successNotification();
         showSnackbar(context: context, message: loc.data_successfully_exported);
       case ExportResult.canceled:
+        await HapticFeedback.errorNotification();
         showSnackbar(context: context, message: loc.export_canceled);
+        await HapticFeedback.errorNotification();
       case ExportResult.unknownException:
         showSnackbar(context: context, message: loc.unknown_exception);
     }