refactor

Runtime/Engine/Code/UI/UIDocumentView.cs

@@ -1,6 +1,4 @@
-using System.Threading;
-using Cysharp.Threading.Tasks;
-using UnityEngine;
+using UnityEngine;
 using UnityEngine.Profiling;
 using UnityEngine.UIElements;
 using Logger = RebootKit.Engine.Foundation.Logger;
@@ -12,18 +10,9 @@ namespace RebootKit.Engine.UI {
         [SerializeField] UIDocument m_Document;
 
         void OnEnable() {
-            s_logger.Debug("START");
             Rebuild();
         }
 
-        public async UniTask Show(CancellationToken cancellationToken) {
-            await UniTask.Yield(cancellationToken);
-        }
-
-        public async UniTask Hide(CancellationToken cancellationToken) {
-            await UniTask.Yield(cancellationToken);
-        }
-
         protected void Rebuild() {
             Profiler.BeginSample("UI Tree Build");
             VisualElement child = Build();
@@ -34,5 +23,13 @@ namespace RebootKit.Engine.UI {
         }
 
         public abstract VisualElement Build();
+        public void Show() {
+        }
+
+        public void Hide() {
+        }
+
+        public void Dispose() {
+        }
     }
 }