bugfix: make sure System UI is visible when navigating to filtered collection from Info

lib/widgets/fullscreen/fullscreen_body.dart

@@ -2,9 +2,11 @@ import 'dart:io';
 import 'dart:math';
 
 import 'package:aves/model/collection_lens.dart';
+import 'package:aves/model/filters/filters.dart';
 import 'package:aves/model/image_entry.dart';
 import 'package:aves/utils/change_notifier.dart';
 import 'package:aves/utils/constants.dart';
+import 'package:aves/widgets/album/collection_page.dart';
 import 'package:aves/widgets/common/image_providers/thumbnail_provider.dart';
 import 'package:aves/widgets/common/image_providers/uri_image_provider.dart';
 import 'package:aves/widgets/fullscreen/fullscreen_action_delegate.dart';
@@ -207,6 +209,11 @@ class FullscreenBodyState extends State<FullscreenBody> with SingleTickerProvide
         _onLeave();
         return SynchronousFuture(true);
       },
+      child: NotificationListener(
+        onNotification: (notification) {
+          if (notification is FilterNotification) _goToCollection(notification.filter);
+          return false;
+        },
         child: Stack(
           children: [
             FullscreenVerticalPageView(
@@ -224,6 +231,7 @@ class FullscreenBodyState extends State<FullscreenBody> with SingleTickerProvide
             bottomOverlay,
           ],
         ),
+      ),
     );
   }
 
@@ -231,6 +239,17 @@ class FullscreenBodyState extends State<FullscreenBody> with SingleTickerProvide
     _verticalScrollNotifier.notifyListeners();
   }
 
+  void _goToCollection(CollectionFilter filter) {
+    _showSystemUI();
+    Navigator.pushAndRemoveUntil(
+      context,
+      MaterialPageRoute(
+        builder: (context) => CollectionPage(collection.derive(filter)),
+      ),
+      (route) => false,
+    );
+  }
+
   Future<void> _goToVerticalPage(int page) {
     return _verticalPager.animateToPage(
       page,
@@ -275,9 +294,9 @@ class FullscreenBodyState extends State<FullscreenBody> with SingleTickerProvide
 
   // system UI
 
-  void _showSystemUI() => SystemChrome.setEnabledSystemUIOverlays(SystemUiOverlay.values);
+  static void _showSystemUI() => SystemChrome.setEnabledSystemUIOverlays(SystemUiOverlay.values);
 
-  void _hideSystemUI() => SystemChrome.setEnabledSystemUIOverlays([]);
+  static void _hideSystemUI() => SystemChrome.setEnabledSystemUIOverlays([]);
 
   // overlay
 

lib/widgets/fullscreen/info/info_page.dart

@@ -1,7 +1,6 @@
 import 'package:aves/model/collection_lens.dart';
 import 'package:aves/model/filters/filters.dart';
 import 'package:aves/model/image_entry.dart';
-import 'package:aves/widgets/album/collection_page.dart';
 import 'package:aves/widgets/common/aves_filter_chip.dart';
 import 'package:aves/widgets/common/data_providers/media_query_data_provider.dart';
 import 'package:aves/widgets/fullscreen/info/basic_section.dart';
@@ -155,13 +154,7 @@ class InfoPageState extends State<InfoPage> {
 
   void _goToCollection(CollectionFilter filter) {
     if (collection == null) return;
-    Navigator.pushAndRemoveUntil(
+    FilterNotification(filter).dispatch(context);
-      context,
-      MaterialPageRoute(
-        builder: (context) => CollectionPage(collection.derive(filter)),
-      ),
-      (route) => false,
-    );
   }
 }
 
@@ -228,3 +221,9 @@ class InfoRowGroup extends StatelessWidget {
 }
 
 class BackUpNotification extends Notification {}
+
+class FilterNotification extends Notification {
+  final CollectionFilter filter;
+
+  const FilterNotification(this.filter);
+}