reconstruct file list with warpper

FileManager_UWP/Model/DisplayableFile.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Windows.Storage;
+using Windows.Storage.FileProperties;
+using Windows.UI.Xaml.Media.Imaging;
+
+namespace FileManager_UWP.Model
+{
+    public class DisplayableFile: IDisplayable {
+        private readonly StorageFile _file;
+        private readonly BitmapImage _icon;
+
+        private DisplayableFile(StorageFile f) {
+            _file = f;
+            _icon = new BitmapImage();
+        }
+
+        public static async Task<DisplayableFile> GetInstanceAsync(StorageFile f) {
+            DisplayableFile obj = new DisplayableFile(f);
+            var thumbnail = await f.GetThumbnailAsync(ThumbnailMode.ListView, 32);
+            await obj._icon.SetSourceAsync(thumbnail).AsTask();
+            return obj;
+        }
+
+        public string Name => _file.Name;
+
+        public string Path => _file.Path;
+
+        public bool IsFolder => false;
+
+        public BitmapImage Icon => _icon;
+    }
+}