将变换移动到本地变换列表的开头。
using UnityEngine;
using System.Collections;
using UnityEngine.UI; //Required when using UI Elements.
using UnityEngine.EventSystems; // Required when using event data.
public class ExampleClass : MonoBehaviour, IPointerDownHandler
{
public RectTransform panelRectTransform;
//Invoked when the mouse pointer goes down on a UI element.
public void OnPointerDown(PointerEventData data)
{
// Puts the panel to the back as it is now the first UI element to be drawn.
panelRectTransform.SetAsFirstSibling();
}
}