1 files changed, 31 insertions, 11 deletions
diff --git a/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/UIBehaviour.cs b/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/UIBehaviour.cs
index 523fe50..198f48e 100644
--- a/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/UIBehaviour.cs
+++ b/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/UIBehaviour.cs
@@ -1,7 +1,9 @@
 namespace UnityEngine.EventSystems
 {
     public abstract class UIBehaviour : MonoBehaviour
-    {
+    {
+#region Monobehaviour共有生命周期
+
         protected virtual void Awake()
         {}
 
@@ -15,30 +17,45 @@ namespace UnityEngine.EventSystems
         {}
 
         protected virtual void OnDestroy()
-        {}
-
+        {}
+
+#endregion 
+
         public virtual bool IsActive()
         {
             return isActiveAndEnabled;
         }
 
 #if UNITY_EDITOR
+        // 组件值在inspector中被修改时调用
         protected virtual void OnValidate()
         {}
 
+        // inspector中右键reset调用
         protected virtual void Reset()
-        {}
+        {}
 #endif
-
-        protected virtual void OnRectTransformDimensionsChange()
-        {}
-
+
+#region Monobehaviour回调函数
+
+        // 父节点（包括非直接父节点的祖先节点）在hierachy中的父子层级改变前调用
         protected virtual void OnBeforeTransformParentChanged()
         {}
 
+        // 父节点（包括非直接父节点的祖先节点）在hierachy中的父子层级改变完调用
         protected virtual void OnTransformParentChanged()
         {}
 
+#endregion 
+
+#region UGUI特有回调函数
+
+        // 当gRectTransform大小改变（不包括位置）的时候回调。且如果子物体由于锚点的设置也会导致
+        // 大小改变时也会调用子物体的这个回调。如果子物体大小不会因此改变，那么不会触发这个回调
+        protected virtual void OnRectTransformDimensionsChange()
+        {}
+
+        // 用animation clip修此脚本属性值的时候触发。可以用于修正动画结果
         protected virtual void OnDidApplyAnimationProperties()
         {}
 
@@ -46,14 +63,17 @@ namespace UnityEngine.EventSystems
         {}
 
         protected virtual void OnCanvasHierarchyChanged()
-        {}
-
+        {}
+
+#endregion
+
         public bool IsDestroyed()
         {
             // Workaround for Unity native side of the object
             // having been destroyed but accessing via interface
             // won't call the overloaded ==
             return this == null;
-        }
+        }
+
     }
 }