fix: reload favorites after modified

Pixiview/Illust/FavoritesPage.xaml.cs

@@ -21,6 +21,24 @@ namespace Pixiview.Illust
         protected override ActivityIndicator LoadingIndicator => activityLoading;
         protected override bool IsDelayLoading => true;
 
+        protected override void OnAppearing()
+        {
+            if (lastUpdated != LastUpdated)
+            {
+                StartLoad();
+            }
+            else
+            {
+                var favorites = Stores.Favorites;
+                if (favorites.Changed)
+                {
+                    favorites.Reload();
+                    lastUpdated = default;
+                    StartLoad();
+                }
+            }
+        }
+
         protected override IEnumerable<IllustItem> DoGetIllustList(IllustItem[] data)
         {
             return data;

Pixiview/Illust/IllustCollectionPage.cs

@@ -695,12 +695,6 @@ namespace Pixiview.Illust
         }
     }
 
-    public class IllustFavorite
-    {
-        public DateTime LastFavoriteUtc { get; set; }
-        public List<IllustItem> Illusts { get; set; }
-    }
-
     public enum IllustType
     {
         Illust = 0,

Pixiview/Illust/ViewIllustPage.xaml.cs

@@ -135,8 +135,7 @@ namespace Pixiview.Illust
 
             fontIconLove = (ImageSource)Application.Current.Resources[ThemeBase.FontIconLove];
             fontIconNotLove = (ImageSource)Application.Current.Resources[ThemeBase.FontIconNotLove];
-            var favorites = Stores.Favorites;
+            FavoriteIcon = Stores.Favorites.Any(i => i.Id == illust.Id)
-            FavoriteIcon = favorites.Any(i => i.Id == illust.Id)
                 ? fontIconLove
                 : fontIconNotLove;
 

Pixiview/Utils/Stores.cs

@@ -49,8 +49,9 @@ namespace Pixiview.Utils
             }
         }
 
-        public static List<IllustItem> Favorites => GetFavoriteObject().Illusts;
+        public static FavoriteList Favorites => GetFavoriteObject().Illusts;
         public static string FavoritesPath => Path.Combine(PersonalFolder, favoriteFile);
+        public static DateTime FavoritesLastUpdated { get; set; } = DateTime.Now;
 
         private static IllustFavorite favoriteObject;
 
@@ -69,7 +70,7 @@ namespace Pixiview.Utils
                     {
                         favoriteObject = new IllustFavorite
                         {
-                            Illusts = new List<IllustItem>()
+                            Illusts = new FavoriteList()
                         };
                     }
                 }
@@ -450,6 +451,34 @@ namespace Pixiview.Utils
         }
     }
 
+    public class IllustFavorite
+    {
+        public DateTime LastFavoriteUtc { get; set; }
+        public FavoriteList Illusts { get; set; }
+    }
+
+    public class FavoriteList : List<IllustItem>
+    {
+        public bool Changed { get; private set; }
+
+        public new void Insert(int index, IllustItem item)
+        {
+            base.Insert(index, item);
+            Changed = true;
+        }
+
+        public new void RemoveAt(int index)
+        {
+            base.RemoveAt(index);
+            Changed = true;
+        }
+
+        public void Reload()
+        {
+            Changed = false;
+        }
+    }
+
     public static class Configs
     {
         public const string IsOnR18Key = "is_on_r18";