优化UI加载效率

aiqinxuancai · Mar 1, 2024 · 7effdad · 7effdad
1 parent b93c423
commit 7effdad
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Showing 4 changed files with 32 additions and 37 deletions.
diff --git a/Aria2Fast/Service/Model/MikanModel.cs b/Aria2Fast/Service/Model/MikanModel.cs
@@ -117,6 +117,9 @@ public class MikanAnimeRss : BaseNotificationModel
 
         private List<MikanAnimeRssItem> _items { get; set; }
 
+        private bool _isUpdateToday;
+        private int _episode = 0;
+        private string _updateTime;
 
         public List<MikanAnimeRssItem> Items
         {
@@ -131,10 +134,15 @@ public List<MikanAnimeRssItem> Items
                     {
                         _episode = e;
                     }
+
+                    _isUpdateToday = TimeHelper.IsUpdateToday(item.Updated, +8); ;
+                    _updateTime = TimeHelper.FormatTimeAgo(item.Updated, +8);
                 }
             }
         }
 
+
+
         public string ShowEpisode
         {
             get
@@ -147,13 +155,9 @@ public string ShowEpisode
                 }
 
                 return text;
-                // text += $" 总{Items.Count}";
             }
         }
 
-
-        private int _episode = 0;
-
         //TODO 当前集数
         public int Episode
         {
@@ -169,28 +173,15 @@ public string UpdateTime
         {
             get
             {
-                var item = Items.FirstOrDefault();
-                if (item != null)
-                {
-
-                    string result = TimeHelper.FormatTimeAgo(item.Updated, +8);
-
-                    return result;
-                }
-                return string.Empty;
+                return _updateTime;
             }
         }
 
         public bool IsUpdateToday
         {
             get
             {
-                var item = Items.FirstOrDefault();
-                if (item != null)
-                {
-                    return TimeHelper.IsUpdateToday(item.Updated, +8); ;
-                }
-                return false;
+                return _isUpdateToday;
             }
         }
 

diff --git a/Aria2Fast/Utils/ImageCacheUtils.cs b/Aria2Fast/Utils/ImageCacheUtils.cs
@@ -35,11 +35,8 @@ await Task.Run(() => {
                         bitmap.UriSource = new Uri(file);
                         bitmap.EndInit();
 
-                        // 这一步很重要，它标记了图片的缓存行为，当图片加载完毕后，它会被保留在内存中
                         bitmap.Freeze();
 
-                        //var img = new BitmapImage(new Uri(file));
-                        //img.CacheOption = BitmapCacheOption.OnLoad;
                         cache.Set(cacheKey, bitmap, new CacheItemPolicy());
                         Debug.WriteLine($"[缓存]{cacheKey}");
 
@@ -57,13 +54,14 @@ await Task.Run(() => {
         /// <returns></returns>
         public static BitmapImage GetImageWithLocalCache(Uri uri)
         {
-            //MemoryCache cache = MemoryCache.Default;
+            MemoryCache cache = MemoryCache.Default;
             var fileName = Path.GetFileName(uri.LocalPath);
-            //if (cache.Contains(fileName))
-            //{
-            //    var bmp = (BitmapImage)cache.Get(fileName);
-            //    return bmp;
-            //}
+            if (cache.Contains(fileName))
+            {
+                var bmp = (BitmapImage)cache.Get(fileName);
+                //bmp.Freeze();
+                return bmp;
+            }
 
             var dirPath = Path.Combine(Directory.GetCurrentDirectory(), "ImageCached");
             if (!Directory.Exists(dirPath))
@@ -94,7 +92,7 @@ public static BitmapImage GetImageWithLocalCache(Uri uri)
             }
             img.CacheOption = BitmapCacheOption.OnLoad;
             img.EndInit();
-
+            img.Freeze();
             return img;
         }
 

diff --git a/Aria2Fast/View/AnimeListView.xaml b/Aria2Fast/View/AnimeListView.xaml
@@ -54,9 +54,15 @@
             Margin="0,45,0,0"
             HorizontalContentAlignment="Stretch"
             VerticalContentAlignment="Stretch"
-            ItemsSource="{Binding Master.AnimeDays}" />
-
-
-
+            ItemsSource="{Binding Master.AnimeDays, IsAsync=True}">
+            <ItemsControl.ItemsPanel>
+                <ItemsPanelTemplate>
+                    <VirtualizingStackPanel IsVirtualizing="True" VirtualizationMode="Recycling" />
+                </ItemsPanelTemplate>
+            </ItemsControl.ItemsPanel>
+        </ItemsControl>
+
+
+
     </Grid>
 </Page>
diff --git a/Aria2Fast/View/MikanAnimeDayControl.xaml b/Aria2Fast/View/MikanAnimeDayControl.xaml
@@ -59,7 +59,7 @@
                                         Height="200"
                                         Opacity="0"
                                         RenderOptions.BitmapScalingMode="HighQuality"
-                                        Source="{Binding ImageCache}"
+                                        Source="{Binding ImageCache, IsAsync=True}"
                                         Stretch="UniformToFill">
                                         <Image.Clip>
                                             <RectangleGeometry
@@ -69,11 +69,11 @@
                                         </Image.Clip>
                                         <Image.Style>
                                             <Style TargetType="Image">
-                                                <!--  Image initially transparent  -->
+
                                                 <Setter Property="Opacity" Value="0" />
                                                 <Style.Triggers>
                                                     <EventTrigger RoutedEvent="Image.Loaded">
-                                                        <!--  Begin fade in when image is loaded  -->
+
                                                         <BeginStoryboard>
                                                             <Storyboard>
                                                                 <DoubleAnimation
@@ -128,7 +128,7 @@
                                                 HorizontalAlignment="Center"
                                                 VerticalAlignment="Center"
                                                 Foreground="White"
-                                                Text="{Binding NewEpisode}" />
+                                                Text="{Binding NewEpisode, IsAsync=True}" />
                                             <TextBlock
                                                 Margin="0,0,5,0"
                                                 HorizontalAlignment="Center"