fix bug

SpineViewer/Controls/SpineListView.cs

@@ -508,7 +508,6 @@ namespace SpineViewer.Controls
                 }
                 else if (Directory.Exists(path))
                 {
-                    // 遍历该目录下所有深度文件，判断是否符合要求并ADD
                     foreach (var file in Directory.EnumerateFiles(path, "*.*", SearchOption.AllDirectories))
                     {
                         if (Spine.Spine.CommonSkelSuffix.Contains(Path.GetExtension(file).ToLower()))

SpineViewer/Spine/Spine.cs

@@ -370,7 +370,9 @@ namespace SpineViewer.Spine
             viewX *= scale;
             viewY *= scale;
 
-            using var tex = new SFML.Graphics.RenderTexture(width, height);
+            // XXX: 貌似无法使用 using 或者 Dispose 主动释放 tex 资源
+            // 在批量添加的中途, 如果触发 GC? 会卡死, 目前未知原因
+            var tex = new SFML.Graphics.RenderTexture(width, height);
             var view = tex.GetView();
             view.Center = new(bounds.X + viewX / 2, bounds.Y + viewY / 2);
             view.Size = new(viewX, -viewY);