c# – OnPointerEnter和OnPointerExit未在Unity 5.3.4中注册

现在我注意到的是,当我交换它时,只有当我用库存插槽4交换说库存插槽1时才能工作.但是如果我要将库存插槽4替换为库存插槽1我的OnPointerEnter和OnPointerExit不注册,这应该是对的吗？这似乎是一个层次结构问题,我不知道如何解决这个问题.

交换的GIF和我的库存插槽游戏对象的屏幕截图：

http://imgur.com/kS1C1TL – GIF

我的OnPointers for Inventory_Slot脚本的代码：

public static GameObject itemBeingDragged;
public static GameObject itemCurrentlyOn;

public void OnPointerEnter(PointerEventData data){
    itemCurrentlyOn = gameObject;
}

public void OnPointerExit(PointerEventData data){
    itemCurrentlyOn = null;
}

public void OnPointerUp(PointerEventData data){
    // IF we are dragging an item.
    if(itemBeingDragged != null){
        print (itemCurrentlyOn);
        // IF we release the mouse button on an actual inventory slot.
        if(itemCurrentlyOn != null && itemCurrentlyOn != gameObject){
            // Swap the information in the 2 inventory slots.
            GetComponentInParent<Inventory> ().SwapInventorySlots (itemBeingDragged.GetComponent<Inventory_Slot> (),itemCurrentlyOn.GetComponent<Inventory_Slot> ());
        }

        itemBeingDragged = null;
        // return this gameobject to its original location.
        rectTrans.localPosition = localRectTrans;
    }
}

public void OnBeginDrag(PointerEventData data){
    // IF we have an item to drag.
    if(isItem){
        // Set the itemBeingDragged to this gameobject.
        itemBeingDragged = gameObject;
        // Set the current item we are hovered on to null.
        //itemCurrentlyOn = null;
    }
}

此外,如果我要将库存插槽5移到层次结构中的库存插槽1之上,那么如果有意义的话我可以向后交换.我会发布一个GIF来制作更好的视觉效果：

新层次结构：

http://imgur.com/rjueuYK – GIF

我是如何进行库存不良操作的,或者我是否可以在Unity中使用某个游戏对象修复此层次结构问题？