fix(recommend): 延后推荐数据刷新

lib/pages/recommend/recommend_page.dart

@@ -14,6 +14,7 @@ import '../../core/data/services/playlist_controller.dart';
 import '../../core/theme/app_colors.dart';
 import '../../core/widgets/empty_state.dart';
 import '../../l10n/app_localizations.dart';
+import '../home/home_feed_channel.dart';
 import '../player/open_player.dart';
 import '../player/player_view.dart';
 import 'recommend_types.dart';
@@ -51,6 +52,8 @@ class _RecommendPageState extends State<RecommendPage>
   RecommendInnerTab _tab = RecommendInnerTab.feed;
   final PageController _pageController = PageController();
   int _scrubCancelRequest = 0;
+  bool _recommendDataRefreshScheduled = false;
+  HomeFeedChannel? _observedFeedChannel;
 
   @override
   bool get wantKeepAlive => true;
@@ -58,22 +61,48 @@ class _RecommendPageState extends State<RecommendPage>
   @override
   void initState() {
     super.initState();
+    _observedFeedChannel = widget.feedController.channel;
+    widget.feedController.addListener(_handleFeedControllerChanged);
     if (widget.active) _scheduleRecommendData();
   }
 
   @override
   void didUpdateWidget(RecommendPage oldWidget) {
     super.didUpdateWidget(oldWidget);
-    if (widget.active && !oldWidget.active) _scheduleRecommendData();
+    if (oldWidget.feedController != widget.feedController) {
+      oldWidget.feedController.removeListener(_handleFeedControllerChanged);
+      _observedFeedChannel = widget.feedController.channel;
+      widget.feedController.addListener(_handleFeedControllerChanged);
+    }
+    if (_requiresRecommendDataRefresh(oldWidget)) {
+      _scheduleRecommendData();
+    }
+  }
+
+  bool _requiresRecommendDataRefresh(RecommendPage oldWidget) {
+    if (!widget.active) return false;
+    return !oldWidget.active ||
+        oldWidget.feedController != widget.feedController ||
+        oldWidget.catalogApi != widget.catalogApi;
+  }
+
+  void _handleFeedControllerChanged() {
+    final channel = widget.feedController.channel;
+    if (channel == _observedFeedChannel) return;
+    _observedFeedChannel = channel;
+    if (widget.active) _scheduleRecommendData();
   }
 
   void _scheduleRecommendData() {
-    final feed = widget.feedController;
-    if (!feed.loaded && !feed.loadingFirstPage) {
-      unawaited(feed.refreshCurrent());
-    }
+    if (_recommendDataRefreshScheduled) return;
+    _recommendDataRefreshScheduled = true;
     WidgetsBinding.instance.addPostFrameCallback((_) {
+      _recommendDataRefreshScheduled = false;
       if (!mounted || !widget.active) return;
+      final feed = widget.feedController;
+      if (!feed.loaded && !feed.loadingFirstPage) {
+        unawaited(feed.refreshCurrent());
+      }
       final playlists = _readPlaylists();
       if (playlists != null && !playlists.loaded && !playlists.loading) {
         unawaited(playlists.load());
@@ -83,6 +112,7 @@ class _RecommendPageState extends State<RecommendPage>
 
   @override
   void dispose() {
+    widget.feedController.removeListener(_handleFeedControllerChanged);
     _pageController.dispose();
     super.dispose();
   }