fix: persist download queue to survive app restart (v1.6.1)

- Download queue now persisted to SharedPreferences
- Auto-restore pending downloads on app restart
- Interrupted downloads reset to queued and auto-resumed
- singleTask launch mode to prevent app restart on share intent
- onNewIntent handler for proper intent handling
- Reverted share_plus to 10.1.4 (12.0.1 has Kotlin build issues)

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog
 
+## [1.6.1] - 2026-01-02
+
+### Fixed
+- **Share Intent App Restart**: Fixed download queue being lost when sharing from Spotify while downloads are in progress
+  - Download queue is now persisted to storage and automatically restored on app restart
+  - Interrupted downloads (marked as "downloading") are reset to "queued" and auto-resumed
+  - Changed launch mode to `singleTask` to reuse existing activity instead of restarting
+  - Added `onNewIntent` handler to properly receive new share intents
+
 ## [1.6.0] - 2026-01-02
 
 ### Added
@@ -33,7 +42,6 @@
 ### Improved
 - **Code Quality**: Replaced all `print()` statements with structured logging using `logger` package
 - **Dependencies Updated**:
-  - `share_plus`: 10.1.4 → 12.0.1
   - `flutter_local_notifications`: 18.0.1 → 19.0.0
   - `build_runner`: 2.4.15 → 2.10.4
 

android/app/src/main/AndroidManifest.xml

@@ -23,8 +23,7 @@
         <activity
             android:name=".MainActivity"
             android:exported="true"
-            android:launchMode="singleTop"
-            android:taskAffinity=""
+            android:launchMode="singleTask"
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"

android/app/src/main/kotlin/com/zarz/spotiflac/MainActivity.kt

@@ -1,5 +1,6 @@
 package com.zarz.spotiflac
 
+import android.content.Intent
 import io.flutter.embedding.android.FlutterActivity
 import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.plugin.common.MethodChannel
@@ -14,6 +15,12 @@ class MainActivity: FlutterActivity() {
     private val CHANNEL = "com.zarz.spotiflac/backend"
     private val scope = CoroutineScope(SupervisorJob() + Dispatchers.Main)
 
+    override fun onNewIntent(intent: Intent) {
+        super.onNewIntent(intent)
+        // Update the intent so receive_sharing_intent can access the new data
+        setIntent(intent)
+    }
+
     override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
         super.configureFlutterEngine(flutterEngine)
         

lib/constants/app_info.dart

@@ -1,8 +1,8 @@
 /// App version and info constants
 /// Update version here only - all other files will reference this
 class AppInfo {
-  static const String version = '1.6.0';
-  static const String buildNumber = '25';
+  static const String version = '1.6.1';
+  static const String buildNumber = '26';
   static const String fullVersion = '$version+$buildNumber';
   
   static const String appName = 'SpotiFLAC';

lib/providers/download_queue_provider.dart

@@ -242,18 +242,90 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
   Timer? _progressTimer;
   int _downloadCount = 0; // Counter for connection cleanup
   static const _cleanupInterval = 50; // Cleanup every 50 downloads
+  static const _queueStorageKey = 'download_queue'; // Storage key for queue persistence
   final NotificationService _notificationService = NotificationService();
   int _totalQueuedAtStart = 0; // Track total items when queue started
+  bool _isLoaded = false;
 
   @override
   DownloadQueueState build() {
-    // Initialize output directory asynchronously
+    // Initialize output directory and load persisted queue asynchronously
     Future.microtask(() async {
       await _initOutputDir();
+      await _loadQueueFromStorage();
     });
     return const DownloadQueueState();
   }
 
+  /// Load persisted queue from storage (for app restart recovery)
+  Future<void> _loadQueueFromStorage() async {
+    if (_isLoaded) return;
+    _isLoaded = true;
+    
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      final jsonStr = prefs.getString(_queueStorageKey);
+      if (jsonStr != null && jsonStr.isNotEmpty) {
+        final List<dynamic> jsonList = jsonDecode(jsonStr);
+        final items = jsonList.map((e) => DownloadItem.fromJson(e as Map<String, dynamic>)).toList();
+        
+        // Reset downloading items to queued (they were interrupted)
+        final restoredItems = items.map((item) {
+          if (item.status == DownloadStatus.downloading) {
+            return item.copyWith(status: DownloadStatus.queued, progress: 0);
+          }
+          return item;
+        }).toList();
+        
+        // Only restore queued/downloading items (not completed/failed/skipped)
+        final pendingItems = restoredItems.where((item) => 
+          item.status == DownloadStatus.queued
+        ).toList();
+        
+        if (pendingItems.isNotEmpty) {
+          state = state.copyWith(items: pendingItems);
+          _log.i('Restored ${pendingItems.length} pending items from storage');
+          
+          // Auto-resume queue processing
+          Future.microtask(() => _processQueue());
+        } else {
+          _log.d('No pending items to restore');
+          // Clear storage since nothing to restore
+          await prefs.remove(_queueStorageKey);
+        }
+      } else {
+        _log.d('No queue found in storage');
+      }
+    } catch (e) {
+      _log.e('Failed to load queue from storage: $e');
+    }
+  }
+
+  /// Save current queue to storage (only pending items)
+  Future<void> _saveQueueToStorage() async {
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      
+      // Only persist queued and downloading items
+      final pendingItems = state.items.where((item) => 
+        item.status == DownloadStatus.queued || 
+        item.status == DownloadStatus.downloading
+      ).toList();
+      
+      if (pendingItems.isEmpty) {
+        // Clear storage if no pending items
+        await prefs.remove(_queueStorageKey);
+        _log.d('Cleared queue storage (no pending items)');
+      } else {
+        final jsonList = pendingItems.map((e) => e.toJson()).toList();
+        await prefs.setString(_queueStorageKey, jsonEncode(jsonList));
+        _log.d('Saved ${pendingItems.length} pending items to storage');
+      }
+    } catch (e) {
+      _log.e('Failed to save queue to storage: $e');
+    }
+  }
+
   void _startProgressPolling(String itemId) {
     _progressTimer?.cancel();
     _progressTimer = Timer.periodic(const Duration(milliseconds: 500), (timer) async {
@@ -461,6 +533,7 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
     );
 
     state = state.copyWith(items: [...state.items, item]);
+    _saveQueueToStorage(); // Persist queue
 
     if (!state.isProcessing) {
       // Run in microtask to not block UI
@@ -487,6 +560,7 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
     }).toList();
 
     state = state.copyWith(items: [...state.items, ...newItems]);
+    _saveQueueToStorage(); // Persist queue
 
     if (!state.isProcessing) {
       // Run in microtask to not block UI
@@ -508,6 +582,13 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
     }).toList();
 
     state = state.copyWith(items: items);
+    
+    // Persist queue when status changes to completed/failed/skipped (item removed from pending)
+    if (status == DownloadStatus.completed || 
+        status == DownloadStatus.failed || 
+        status == DownloadStatus.skipped) {
+      _saveQueueToStorage();
+    }
   }
 
   void updateProgress(String id, double progress) {
@@ -526,10 +607,12 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
     ).toList();
 
     state = state.copyWith(items: items);
+    _saveQueueToStorage(); // Persist queue
   }
 
   void clearAll() {
     state = state.copyWith(items: [], isPaused: false);
+    _saveQueueToStorage(); // Clear persisted queue
   }
 
   /// Pause the download queue
@@ -571,6 +654,7 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
       return item;
     }).toList();
     state = state.copyWith(items: items);
+    _saveQueueToStorage(); // Persist queue
     
     // Start processing if not already
     if (!state.isProcessing) {
@@ -582,6 +666,7 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
   void removeItem(String id) {
     final items = state.items.where((item) => item.id != id).toList();
     state = state.copyWith(items: items);
+    _saveQueueToStorage(); // Persist queue
   }
 
   /// Embed metadata and cover to a FLAC file after M4A conversion

lib/screens/track_metadata_screen.dart

@@ -938,11 +938,9 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
       return;
     }
     
-    await SharePlus.instance.share(
-      ShareParams(
-        files: [XFile(item.filePath)],
-        text: '${item.trackName} - ${item.artistName}',
-      ),
+    await Share.shareXFiles(
+      [XFile(item.filePath)],
+      text: '${item.trackName} - ${item.artistName}',
     );
   }
 

pubspec.lock

@@ -876,18 +876,18 @@ packages:
     dependency: "direct main"
     description:
       name: share_plus
-      sha256: "14c8860d4de93d3a7e53af51bff479598c4e999605290756bbbe45cf65b37840"
+      sha256: fce43200aa03ea87b91ce4c3ac79f0cecd52e2a7a56c7a4185023c271fbfa6da
       url: "https://pub.dev"
     source: hosted
-    version: "12.0.1"
+    version: "10.1.4"
   share_plus_platform_interface:
     dependency: transitive
     description:
       name: share_plus_platform_interface
-      sha256: "88023e53a13429bd65d8e85e11a9b484f49d4c190abbd96c7932b74d6927cc9a"
+      sha256: cc012a23fc2d479854e6c80150696c4a5f5bb62cb89af4de1c505cf78d0a5d0b
       url: "https://pub.dev"
     source: hosted
-    version: "6.1.0"
+    version: "5.0.2"
   shared_preferences:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -1,7 +1,7 @@
 name: spotiflac_android
 description: Download Spotify tracks in FLAC from Tidal, Qobuz & Amazon Music
 publish_to: 'none'
-version: 1.6.0+25
+version: 1.6.1+26
 
 environment:
   sdk: ^3.10.0
@@ -46,7 +46,7 @@ dependencies:
   # Utils
   url_launcher: ^6.3.1
   device_info_plus: ^12.3.0
-  share_plus: ^12.0.1
+  share_plus: ^10.1.4
   receive_sharing_intent: ^1.8.1
   logger: ^2.5.0