添加水平与垂直布局的重写管理，支持对不可见对象的布局计算。

添加支持自动可见性剔除的滚动管理器。

Runtime/Core/Base/XericUIBehaciour.cs

@@ -2,6 +2,7 @@
 using Sirenix.OdinInspector;
 using UnityEngine;
 using UnityEngine.EventSystems;
+using UnityEngine.UI;
 
 namespace XericUI.Core.Base
 {
@@ -11,11 +12,85 @@ namespace XericUI.Core.Base
         [HideLabel, DisplayAsString]
         string __EMPTYFIELD;
 
-        
-        
-        
+
         protected bool PublicFieldNullReference;
-        
+
+        [System.NonSerialized] private Canvas _canvas;
+        [System.NonSerialized] private CanvasScaler _canvasScaler;
+        [System.NonSerialized] private GraphicRaycaster _graphicRaycaster;
+        [System.NonSerialized] private RectTransform _rect;
+
+        /// <summary>
+        /// 层级脏（层级被转移）
+        /// </summary>
+        private bool _hierarchyDirty;
+
+        /// <summary>
+        /// 根布局管理器
+        /// </summary>
+        public Canvas canvas
+        {
+            get
+            {
+                if (_canvas == null)
+                    _canvas = GetComponentInParent<Canvas>();
+#if UNITY_EDITOR
+                if (_canvas == null)
+                    Debug.LogError($"{name} 无法找到布局组件，接下来的流程可能会引发错误", this);
+#endif
+                return _canvas;
+            }
+        }
+
+        /// <summary>
+        /// 根布局缩放
+        /// </summary>
+        public CanvasScaler canvasScaler
+        {
+            get
+            {
+                if (_canvasScaler == null)
+                    _canvasScaler = GetComponentInParent<CanvasScaler>();
+#if UNITY_EDITOR
+                if (_canvas == null)
+                    Debug.LogError($"{name} 无法找到布局缩放组件，接下来的流程可能会引发错误", this);
+#endif
+                return _canvasScaler;
+            }
+        }
+
+        /// <summary>
+        /// 根布局射线检测
+        /// </summary>
+        public GraphicRaycaster graphicRaycaster
+        {
+            get
+            {
+                if (_graphicRaycaster == null)
+                    _graphicRaycaster = GetComponentInParent<GraphicRaycaster>();
+#if UNITY_EDITOR
+                if (_canvas == null)
+                    Debug.LogError($"{name} 无法找到布局射线检测，接下来的流程可能会引发错误", this);
+#endif
+                return _graphicRaycaster;
+            }
+        }
+
+        /// <summary>
+        /// ui变换组件
+        /// </summary>
+        protected RectTransform rectTransform
+        {
+            get
+            {
+                if (_rect == null)
+                    _rect = GetComponent<RectTransform>();
+                return _rect;
+            }
+        }
+
+        #region 生命周期
+
         protected bool AlreadyAwake { get; private set; }
         protected bool AlreadyStart { get; private set; }
         protected bool AlreadyOnEnable { get; private set; }
@@ -37,7 +112,7 @@ namespace XericUI.Core.Base
 
         protected override void OnEnable()
         {
-            AlreadyOnEnable = true;   
+            AlreadyOnEnable = true;
             base.OnEnable();
         }
 
@@ -46,6 +121,29 @@ namespace XericUI.Core.Base
             AlreadyOnDisable = true;
             base.OnDisable();
         }
-        
+
+        #endregion
+
+        #region 脏处理
+
+        /// <summary>
+        /// 设置层级脏
+        /// </summary>
+        public void SetHierarchyDirty()
+        {
+            _canvas = null;
+            _canvasScaler = null;
+            _graphicRaycaster = null;
+            _hierarchyDirty = true;
+        }
+        /// <summary>
+        /// 复位层级脏
+        /// </summary>
+        public void ResetHierarchyDirty()
+        {
+            _hierarchyDirty = false;    
+        }
+
+        #endregion
     }
 }