Fix restore queueSource

Make queueSource responsive
Fix some warnings

lib/api/player/audio_handler.dart

@@ -1,6 +1,5 @@
 import 'package:audio_service/audio_service.dart';
 import 'package:audio_session/audio_session.dart';
-import 'package:flutter/foundation.dart';
 import 'package:freezer/api/cache.dart';
 import 'package:freezer/api/deezer.dart';
 import 'package:freezer/api/audio_sources/deezer_audio_source.dart';
@@ -802,6 +801,13 @@ class AudioPlayerTask extends BaseAudioHandler {
     _queueAutoIncrement = q.length;
     queue.add(q);
     await _loadQueue(preload: false);
+
+    //Send restored queue source to ui
+    customEvent.add({
+      'action': 'onRestore',
+      'queueSource': queueSource!,
+      'repeatMode': _repeatMode
+    });
   }
 
   @override

lib/api/player/player_helper.dart

@@ -15,7 +15,6 @@ class PlayerHelper {
   late StreamSubscription _customEventSubscription;
   late StreamSubscription _mediaItemSubscription;
   late StreamSubscription _playbackStateStreamSubscription;
-  QueueSource? queueSource;
   AudioServiceRepeatMode repeatType = AudioServiceRepeatMode.none;
   bool equalizerOpen = false;
   bool _shuffleEnabled = false;
@@ -30,6 +29,9 @@ class PlayerHelper {
   // StreamController _visualizerController = StreamController.broadcast();
   // Stream get visualizerStream => _visualizerController.stream;
 
+  final _queueSourceSubject = BehaviorSubject<QueueSource>();
+  ValueStream<QueueSource> get queueSource => _queueSourceSubject.stream;
+
   final _streamInfoSubject = BehaviorSubject<StreamQualityInfo>();
   ValueStream<StreamQualityInfo> get streamInfo => _streamInfoSubject.stream;
 
@@ -92,7 +94,7 @@ class PlayerHelper {
       switch (event['action']) {
         case 'onRestore':
           //Load queueSource from isolate
-          queueSource = event['queueSource'] as QueueSource;
+          _queueSourceSubject.add(event['queueSource'] as QueueSource);
           repeatType = event['repeatMode'] as AudioServiceRepeatMode;
           _queueIndex = getQueueIndex();
           break;
@@ -202,7 +204,7 @@ class PlayerHelper {
 
   //Play mix by track
   Future playMix(String trackId, String trackTitle) async {
-    List<Track> tracks = (await deezerAPI.playMix(trackId))!;
+    List<Track> tracks = await deezerAPI.playMix(trackId);
     await playFromTrackList(
         tracks,
         tracks[0].id,
@@ -277,7 +279,7 @@ class PlayerHelper {
   Future<void> playFromTrackList(
       List<Track> tracks, String? trackId, QueueSource queueSource) async {
     final queue =
-        tracks.map<MediaItem>((track) => track!.toMediaItem()).toList();
+        tracks.map<MediaItem>((track) => track.toMediaItem()).toList();
     await setQueueSource(queueSource);
     await _loadQueuePlay(
         queue, trackId == null ? 0 : queue.indexWhere((m) => m.id == trackId));
@@ -311,7 +313,7 @@ class PlayerHelper {
   }
 
   Future setQueueSource(QueueSource queueSource) async {
-    this.queueSource = queueSource;
+    _queueSourceSubject.add(queueSource);
     await audioHandler.customAction('queueSource', queueSource.toJson());
   }
 

lib/ui/library.dart

@@ -536,7 +536,7 @@ class _LibraryTracksState extends State<LibraryTracks> {
                     ),
                     const SizedBox(height: 8.0),
                     for (final track in allTracks)
-                      TrackTile.fromTrack(track!, onTap: () {
+                      TrackTile.fromTrack(track, onTap: () {
                         playerHelper.playFromTrackList(
                             allTracks,
                             track.id,

lib/ui/player_screen.dart

@@ -787,41 +787,46 @@ class PlaybackControls extends StatelessWidget {
   Widget build(BuildContext context) {
     return Padding(
       padding: const EdgeInsets.symmetric(horizontal: 8.0),
-      child: Row(
-        mainAxisAlignment: MainAxisAlignment.spaceBetween,
-        mainAxisSize: MainAxisSize.max,
-        children: [
-          playerHelper.queueSource?.source != 'show'
-              ? ShuffleButton(iconSize: size * 0.75)
-              : const ForwardReplay30Button(forward: false),
-          PrevNextButton(size, prev: true),
-          if (settings.enableFilledPlayButton)
-            Consumer<BackgroundProvider>(builder: (context, provider, _) {
-              final color = provider.dominantColor == null
-                  ? Colors.transparent
-                  : Theme.of(context).brightness == Brightness.light
-                      ? provider.dominantColor!
-                      : darken(provider.dominantColor!);
-              return PlayPauseButton(size * 2.25,
-                  filled: true,
-                  material3: settings.enableMaterial3PlayButton,
-                  color: color,
-                  iconColor: Color.lerp(
-                      (ThemeData.estimateBrightnessForColor(color) ==
-                              Brightness.light
-                          ? Colors.black
-                          : Colors.white),
-                      color,
-                      0.25));
-            })
-          else
-            PlayPauseButton(size * 1.25),
-          PrevNextButton(size),
-          playerHelper.queueSource?.source != 'show'
-              ? RepeatButton(size * 0.75)
-              : const ForwardReplay30Button(forward: true),
-        ],
-      ),
+      child: StreamBuilder<QueueSource>(
+          stream: playerHelper.queueSource,
+          builder: (context, snapshot) {
+            final queueSource = snapshot.data;
+            return Row(
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+              mainAxisSize: MainAxisSize.max,
+              children: [
+                queueSource?.source != 'show'
+                    ? ShuffleButton(iconSize: size * 0.75)
+                    : const ForwardReplay30Button(forward: false),
+                PrevNextButton(size, prev: true),
+                if (settings.enableFilledPlayButton)
+                  Consumer<BackgroundProvider>(builder: (context, provider, _) {
+                    final color = provider.dominantColor == null
+                        ? Colors.transparent
+                        : Theme.of(context).brightness == Brightness.light
+                            ? provider.dominantColor!
+                            : darken(provider.dominantColor!);
+                    return PlayPauseButton(size * 2.25,
+                        filled: true,
+                        material3: settings.enableMaterial3PlayButton,
+                        color: color,
+                        iconColor: Color.lerp(
+                            (ThemeData.estimateBrightnessForColor(color) ==
+                                    Brightness.light
+                                ? Colors.black
+                                : Colors.white),
+                            color,
+                            0.25));
+                  })
+                else
+                  PlayPauseButton(size * 1.25),
+                PrevNextButton(size),
+                queueSource?.source != 'show'
+                    ? RepeatButton(size * 0.75)
+                    : const ForwardReplay30Button(forward: true),
+              ],
+            );
+          }),
     );
   }
 }
@@ -997,22 +1002,29 @@ class PlayerScreenTopRow extends StatelessWidget {
           iconSize: size,
           splashRadius: size * 1.5,
         ),
-        if (playerHelper.queueSource != null)
-          Expanded(
-            child: RichText(
-                textAlign: TextAlign.center,
-                maxLines: 2,
-                text: TextSpan(children: [
-                  if (!short)
-                    TextSpan(
-                        text: '${'PLAYING FROM'.i18n}\n',
-                        style: TextStyle(
-                            fontWeight: FontWeight.bold,
-                            letterSpacing: 1.5,
-                            fontSize: (textSize ?? 38.sp) * 0.85)),
-                  TextSpan(text: playerHelper.queueSource!.text ?? '')
-                ], style: TextStyle(fontSize: textSize ?? 38.sp))),
-          ),
+        Expanded(
+          child: StreamBuilder<QueueSource>(
+              stream: playerHelper.queueSource,
+              builder: (context, snapshot) {
+                final queueSource = snapshot.data;
+                if (queueSource == null) {
+                  return const SizedBox.shrink();
+                }
+                return RichText(
+                    textAlign: TextAlign.center,
+                    maxLines: 2,
+                    text: TextSpan(children: [
+                      if (!short)
+                        TextSpan(
+                            text: '${'PLAYING FROM'.i18n}\n',
+                            style: TextStyle(
+                                fontWeight: FontWeight.bold,
+                                letterSpacing: 1.5,
+                                fontSize: (textSize ?? 38.sp) * 0.85)),
+                      TextSpan(text: queueSource.text ?? '')
+                    ], style: TextStyle(fontSize: textSize ?? 38.sp)));
+              }),
+        ),
         showQueueButton
             ? IconButton(
                 icon: Icon(
@@ -1158,7 +1170,7 @@ class BottomBarControls extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final iconSize = size * 0.9;
-    if (playerHelper.queueSource?.source == 'show') {
+    if (playerHelper.queueSource.valueOrNull?.source == 'show') {
       return Row(
         crossAxisAlignment: CrossAxisAlignment.center,
         mainAxisAlignment: MainAxisAlignment.spaceEvenly,