Unity Ui点击事件实现

1.在Main Camera上 添加 Physics Raycaster组件

2.场景里需要有 EventSystem (Create - UI- EventSystem)

3.物体需要有Collider 

4.在需要点击的物体上挂脚本 并根据需求实现以下接口 以及方法

IPointerClickHandler    

IPointerDownHandler  

IPointerEnterHandler 

IPointerExitHandler  

IPointerUpHandler   

  using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;

public class ColorPickerController : MonoBehaviour,IPointerClickHandler {

// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {

}

#region IPointerClickHandler implementation
public void OnPointerClick (PointerEventData eventData)
{
Debug.Log ("点击");

}
#endregion
}