完成GetUgoiraAsync（未测试）

PixivFSUWP/Data/OverAll.cs

@@ -73,18 +73,16 @@ public static async Task<string> GetDataUri(string Uri)
         public static async Task<BitmapImage> LoadImageAsync(string Uri)
         {
             var toret = new BitmapImage();
-            var memStream = await DownloadImage(Uri);
-            await toret.SetSourceAsync(memStream.AsRandomAccessStream());
-            memStream.Dispose();
+            using (var memStream = await DownloadImage(Uri))
+                await toret.SetSourceAsync(memStream.AsRandomAccessStream());
             return toret;
         }
 
         public static async Task<WriteableBitmap> LoadImageAsync(string Uri, int Width, int Height)
         {
             var toret = new WriteableBitmap(Width, Height);
-            var memStream = await DownloadImage(Uri);
-            await toret.SetSourceAsync(memStream.AsRandomAccessStream());
-            memStream.Dispose();
+            using (var memStream = await DownloadImage(Uri))
+                await toret.SetSourceAsync(memStream.AsRandomAccessStream());
             return toret;
         }
 

PixivFSUWP/Data/UgoiraHelper.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.IO.Compression;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using PixivCS;
+using Windows.UI.Xaml.Media.Imaging;
+
+namespace PixivFSUWP.Data
+{
+    public static class UgoiraHelper
+    {
+        public static async Task<Ugoira> GetUgoiraAsync(string IllustID)
+        {
+            var res = await new PixivAppAPI(OverAll.GlobalBaseAPI).UgoiraMetadata(IllustID);
+            if (res.Stringify().Contains("error")) return null;
+            List<string> framefiles = new List<string>();
+            Dictionary<string, int> framedelays = new Dictionary<string, int>();
+            var framesarray = res["ugoira_metadata"].GetObject()["frames"].GetArray();
+            foreach (var i in framesarray)
+            {
+                var file = i.GetObject()["file"].GetString();
+                framefiles.Add(file);
+                framedelays.Add(file, (int)i.GetObject()["delay"].GetNumber());
+            }
+            Dictionary<string, BitmapImage> frameimgs = new Dictionary<string, BitmapImage>();
+            var zipurl = res["ugoira_metadata"].GetObject()["zip_urls"].GetObject()["medium"].GetString();
+            using (var zipfile = await OverAll.DownloadImage(zipurl))
+            {
+                using (ZipArchive ziparc = new ZipArchive(zipfile, ZipArchiveMode.Read))
+                {
+                    foreach (var entry in ziparc.Entries)
+                    {
+                        var file = entry.FullName;
+                        BitmapImage img = new BitmapImage();
+                        using (var memStream = new MemoryStream())
+                        {
+                            memStream.Position = 0;
+                            await entry.Open().CopyToAsync(memStream);
+                            await img.SetSourceAsync(memStream.AsRandomAccessStream());
+                        }
+                        frameimgs.Add(file, img);
+                    }
+                }
+            }
+            Ugoira toret = new Ugoira();
+            foreach (var i in framefiles)
+                toret.Frames.Add(new Ugoira.Frame() { Image = frameimgs[i], Delay = framedelays[i] });
+            framefiles.Clear();
+            framedelays.Clear();
+            frameimgs.Clear();
+            return toret;
+        }
+    }
+}

PixivFSUWP/PixivFSUWP.csproj

@@ -144,7 +144,7 @@
     <Compile Include="Data\RecommendIllustsCollection.cs" />
     <Compile Include="Data\OverAll.cs" />
     <Compile Include="Data\Ugoira.cs" />
-    <Compile Include="Data\UgoriaHelper.cs" />
+    <Compile Include="Data\UgoiraHelper.cs" />
     <Compile Include="Data\UserDetail.cs" />
     <Compile Include="Data\UserIllustsCollection.cs" />
     <Compile Include="Data\WaterfallItem.cs" />