v2.40 — Issue #9: Progress-Notification für Download/Upload (flutter_local_notifications)

- flutter_local_notifications ^22.2.0 hinzugefügt
- Notification-Channel 'de.baka.melo.downloads' in main() initialisiert
- DownloadService._showProgress(): Fortschritts-Notification mit ProgressBar
- DownloadService._completeNotification(): Abschluss-Notification (Erfolg/Fehler/Abbruch)
- Integration in downloadBatch(): Fortschritt pro Song, Abschluss nach Batch
- CloudScreen._upload(): Upload-Fortschritt + Abschluss-Notification

lib/main.dart

@@ -4,6 +4,7 @@ import 'dart:io' show Platform;
 import 'package:audio_service/audio_service.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:permission_handler/permission_handler.dart';
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'database/db_helper.dart';
 import 'services/favoriten_service.dart';
 import 'services/auth_service.dart';
@@ -15,12 +16,37 @@ import 'utils/farb_theme.dart';
 import 'screens/home_screen.dart';
 import 'screens/login_screen.dart';
 
+/// Globaler Notification-Plugin (wird in main() initialisiert)
+final FlutterLocalNotificationsPlugin notificationsPlugin =
+    FlutterLocalNotificationsPlugin();
+
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
   // Logger startet sofort – zeichnet ALLES auf
   MeloLogger().init('2.35');
 
+  // ── Notifications initialisieren (Issue #9) ──
+  const androidInit = AndroidInitializationSettings('@mipmap/ic_launcher');
+  const initSettings = InitializationSettings(android: androidInit);
+  await notificationsPlugin.initialize(
+    settings: initSettings,
+  );
+
+  // Notification-Channel für Downloads (Fortschritt + Abschluss)
+  const downloadChannel = AndroidNotificationChannel(
+    'de.baka.melo.downloads',
+    'Melo Downloads',
+    description: 'Download-Fortschritt und Abschluss',
+    importance: Importance.low,
+    playSound: false,
+    enableVibration: false,
+  );
+  await notificationsPlugin
+      .resolvePlatformSpecificImplementation<
+          AndroidFlutterLocalNotificationsPlugin>()
+      ?.createNotificationChannel(downloadChannel);
+
   try {
     await DbHelper().db;
     await FavoritenService().init();

lib/screens/cloud_screen.dart

@@ -3,11 +3,13 @@ import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import '../utils/farb_theme.dart';
 import '../services/cloud_service.dart';
 import '../services/auth_service.dart';
 import '../database/db_helper.dart';
 import '../services/melo_logger.dart';
+import '../main.dart'; // notificationsPlugin
 
 /// Melo Cloud Sync Screen v3 — vollständiges Sync-System
 /// Playlisten, Favoriten, Auto-Sync, Persistent Login, Benutzerdefinierte Namen
@@ -398,6 +400,9 @@ class _CloudScreenState extends State<CloudScreen> {
 
   // ─── Upload / Download ───
 
+  static const String _cloudChannelId = 'de.baka.melo.downloads';
+  static const int _cloudNotifyId = 200;
+
   Future<void> _upload() async {
     setState(() => _ladt = true);
     _setzeStatus('Suche lokale Songs...');
@@ -413,12 +418,59 @@ class _CloudScreenState extends State<CloudScreen> {
       }
       final files = dir.listSync().whereType<File>().where(
           (f) => f.path.endsWith('.mp3') || f.path.endsWith('.m4a'));
+      final fileList = files.toList();
       int count = 0;
-      for (final f in files) {
+      for (int i = 0; i < fileList.length; i++) {
+        final f = fileList[i];
         _setzeStatus('Upload: ${f.path.split('/').last}...');
+        // Progress-Notification
+        if (Platform.isAndroid) {
+          notificationsPlugin.show(
+            id: _cloudNotifyId,
+            title: 'Melo Cloud Upload',
+            body: '${i + 1} / ${fileList.length}: ${f.path.split('/').last}',
+            notificationDetails: NotificationDetails(
+              android: AndroidNotificationDetails(
+                _cloudChannelId,
+                'Melo Downloads',
+                channelDescription: 'Cloud Upload-Fortschritt',
+                importance: Importance.low,
+                priority: Priority.low,
+                onlyAlertOnce: true,
+                showProgress: true,
+                maxProgress: fileList.length,
+                progress: i,
+                ongoing: true,
+                autoCancel: false,
+              ),
+            ),
+          );
+        }
         final sid = await widget.cloud.upload(f.path, f.path.split('/').last);
         if (sid != null) count++;
       }
+      // Abschluss-Notification
+      if (Platform.isAndroid) {
+        notificationsPlugin.cancel(id: _cloudNotifyId);
+        final ok = count > 0;
+        notificationsPlugin.show(
+          id: _cloudNotifyId + 1,
+          title: ok ? 'Cloud Upload fertig' : 'Cloud Upload fehlgeschlagen',
+          body: ok
+              ? '$count / ${fileList.length} Songs hochgeladen ✅'
+              : 'Kein Song konnte hochgeladen werden ❌',
+          notificationDetails: NotificationDetails(
+            android: AndroidNotificationDetails(
+              _cloudChannelId,
+              'Melo Downloads',
+              channelDescription: 'Cloud Upload-Abschluss',
+              importance: Importance.defaultImportance,
+              priority: Priority.defaultPriority,
+              autoCancel: true,
+            ),
+          ),
+        );
+      }
       await _ladeStatus();
       if (mounted) {
         setState(() => _ladt = false);
@@ -427,6 +479,9 @@ class _CloudScreenState extends State<CloudScreen> {
       }
     } catch (e) {
       MeloLogger().fehler('cloud_upload_path', e);
+      if (Platform.isAndroid) {
+        notificationsPlugin.cancel(id: _cloudNotifyId);
+      }
       if (mounted) {
         setState(() {
           _ladt = false;

lib/services/download_service.dart

@@ -4,14 +4,17 @@ import 'dart:io';
 import 'package:flutter/foundation.dart';
 import 'package:http/http.dart' as http;
 import 'package:path_provider/path_provider.dart';
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import '../models/song.dart';
 import '../database/db_helper.dart';
 import '../utils/audio_validator.dart';
 import 'melo_logger.dart';
 import '../config/app_config.dart';
+import '../main.dart'; // für notificationsPlugin
 
 /// Download-Service: Lädt YouTube-Audio über den yt-proxy herunter.
 /// Nutzt ChangeNotifier für UI-Updates via ListenableBuilder.
+/// Issue #9: Fortschritt per System-Notification (ProgressBar).
 class DownloadService extends ChangeNotifier {
   static final http.Client _client = http.Client();
 
@@ -23,6 +26,10 @@ class DownloadService extends ChangeNotifier {
   static String get _apiKey => AppConfig.ytProxyApiKey;
   static Map<String, String> get _authHeader => {'X-API-Key': _apiKey};
 
+  static const String _channelId = 'de.baka.melo.downloads';
+  static const int _notifyProgressId = 100;
+  static const int _notifyCompleteId = 101;
+
   final DbHelper _db = DbHelper();
 
   bool _ladt = false;
@@ -91,12 +98,14 @@ class DownloadService extends ChangeNotifier {
     int erfolgreich = 0;
     _aktuellerTitel = '0/${urls.length} – Starte...';
     notifyListeners();
+    _showProgress(0, urls.length);
 
     for (int i = 0; i < urls.length; i++) {
       if (sollAbbrechen) break;
 
       _aktuellerTitel = '${i + 1}/${urls.length} – ${urls[i]._titelKurz()}';
       notifyListeners();
+      _showProgress(i, urls.length, titel: urls[i]._titelKurz());
 
       MeloLogger().zustand('download_einzeln_start', {
         'index': i,
@@ -137,6 +146,7 @@ class DownloadService extends ChangeNotifier {
       _aktuellerTitel = '✅ $erfolgreich/${urls.length} Songs geladen';
     }
     notifyListeners();
+    _completeNotification(erfolgreich, urls.length, abgebrochen: sollAbbrechen);
     MeloLogger().zustand('download_batch_ende', {
       'erfolgreich': erfolgreich,
       'gesamt': urls.length,
@@ -458,6 +468,66 @@ class DownloadService extends ChangeNotifier {
     return _downloadEinzeln(song.ytUrl!);
   }
 
+  // ─── #9: Notification-Progress ─────────────────
+
+  /// Zeigt oder aktualisiert eine Fortschritts-Notification.
+  /// [current] = aktueller Index (1-basiert), [total] = Gesamtanzahl.
+  void _showProgress(int current, int total, {String? titel}) {
+    if (!Platform.isAndroid) return;
+    notificationsPlugin.show(
+      id: _notifyProgressId,
+      title: 'Melo lädt herunter',
+      body: titel ?? '$current / $total Songs',
+      notificationDetails: NotificationDetails(
+        android: AndroidNotificationDetails(
+          _channelId,
+          'Melo Downloads',
+          channelDescription: 'Download-Fortschritt',
+          importance: Importance.low,
+          priority: Priority.low,
+          onlyAlertOnce: true,
+          showProgress: true,
+          maxProgress: total,
+          progress: current,
+          ongoing: true,
+          autoCancel: false,
+        ),
+      ),
+    );
+  }
+
+  /// Zeigt Abschluss-Notification (Erfolg oder Fehler).
+  void _completeNotification(int erfolgreich, int gesamt, {bool abgebrochen = false}) {
+    if (!Platform.isAndroid) return;
+    // Fortschritts-Notification abbrechen
+    notificationsPlugin.cancel(id: _notifyProgressId);
+
+    final titel = abgebrochen
+        ? 'Download abgebrochen'
+        : (erfolgreich > 0 ? 'Download fertig' : 'Download fehlgeschlagen');
+    final body = abgebrochen
+        ? '$erfolgreich / $gesamt Songs geladen'
+        : (erfolgreich > 0
+            ? '$erfolgreich / $gesamt Songs geladen ✅'
+            : 'Kein Song konnte geladen werden ❌');
+
+    notificationsPlugin.show(
+      id: _notifyCompleteId,
+      title: titel,
+      body: body,
+      notificationDetails: NotificationDetails(
+        android: AndroidNotificationDetails(
+          _channelId,
+          'Melo Downloads',
+          channelDescription: 'Download-Abschluss',
+          importance: Importance.defaultImportance,
+          priority: Priority.defaultPriority,
+          autoCancel: true,
+        ),
+      ),
+    );
+  }
+
   @override
   void dispose() {
     abbrechen();

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -7,6 +7,7 @@ import Foundation
 
 import audio_service
 import audio_session
+import flutter_local_notifications
 import flutter_secure_storage_darwin
 import just_audio
 import shared_preferences_foundation
@@ -15,6 +16,7 @@ import sqflite_darwin
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   AudioServicePlugin.register(with: registry.registrar(forPlugin: "AudioServicePlugin"))
   AudioSessionPlugin.register(with: registry.registrar(forPlugin: "AudioSessionPlugin"))
+  FlutterLocalNotificationsPlugin.register(with: registry.registrar(forPlugin: "FlutterLocalNotificationsPlugin"))
   FlutterSecureStorageDarwinPlugin.register(with: registry.registrar(forPlugin: "FlutterSecureStorageDarwinPlugin"))
   JustAudioPlugin.register(with: registry.registrar(forPlugin: "JustAudioPlugin"))
   SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))

pubspec.lock

@@ -97,6 +97,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.7"
+  dbus:
+    dependency: transitive
+    description:
+      name: dbus
+      sha256: "792974a4007974fbc5c1b5433eb2330a9db3e368c3f906253af4c007d0f49a91"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.13"
   fake_async:
     dependency: transitive
     description:
@@ -158,6 +166,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.0.0"
+  flutter_local_notifications:
+    dependency: "direct main"
+    description:
+      name: flutter_local_notifications
+      sha256: "9375211fd7df9c070504ac4db7047c7fae857e238291433b770cfe696b5c357a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "22.2.0"
+  flutter_local_notifications_linux:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_linux
+      sha256: "9ca97e63776f29ab1b955725c09999fc2c150523269db150c39274f2a43c5a8b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.0.1"
+  flutter_local_notifications_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_platform_interface
+      sha256: "945a438a4779f3aca3a948718d8a4048cbe9f9c8c797492c00abd5d39112bf37"
+      url: "https://pub.dev"
+    source: hosted
+    version: "12.1.0"
+  flutter_local_notifications_web:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_web
+      sha256: "516afaf97a2d1e67a036c6617321b00d205d72f7a67b6eccf936cd565f985878"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  flutter_local_notifications_windows:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_windows
+      sha256: "6f43bdd03b171b7a90f22647506fea33e2bb12294b7c7c7a3d690e960a382945"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.1"
   flutter_secure_storage:
     dependency: "direct main"
     description:
@@ -472,6 +520,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.2.1"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      sha256: "91bd59303e9f769f108f8df05e371341b15d59e995e6806aefab827b58336675"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.2"
   platform:
     dependency: transitive
     description:
@@ -669,6 +725,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.11"
+  timezone:
+    dependency: transitive
+    description:
+      name: timezone
+      sha256: "981d1020d6ef8fe1e7b3de5054e5b25579ae7c403d7734adc508ffc47668e9cb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.11.1"
   typed_data:
     dependency: transitive
     description:
@@ -725,6 +789,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.0"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      sha256: "67f0aff7be013d107995e9b75bf4e7f2c3ef2dfdb2c8e68024bba0a7fd5756a4"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.1"
   yaml:
     dependency: transitive
     description:

pubspec.yaml

@@ -29,6 +29,7 @@ dependencies:
   http: ^1.2.0
   crypto: ^3.0.6
   flutter_secure_storage: ^10.3.1
+  flutter_local_notifications: ^22.2.0
 
 dev_dependencies:
   flutter_test:

windows/flutter/generated_plugins.cmake

@@ -8,6 +8,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  flutter_local_notifications_windows
   jni
 )