程序动态设置实现——UGUI事件系统

有实现接口，button注册，添加EventTrigger三种。

现在是第四中方法，用代码动态实现

  void Start()    {        var trigger = GetComponent<EventTrigger>();        //实例化delegates        trigger.triggers = new System.Collections.Generic.List<EventTrigger.Entry>();        EventTrigger.Entry entry = new EventTrigger.Entry();        //设置事件类型        entry.eventID = EventTriggerType.PointerEnter;        //设置回调函数        entry.callback = new EventTrigger.TriggerEvent();        UnityAction<BaseEventData> callback = new UnityAction<BaseEventData>(Method);        entry.callback.AddListener(callback);        //添加事件触发记录到gameobjec的事件触发组件        trigger.triggers.Add(entry);    }    public void Method(BaseEventData data)    {        Debug.Log(3);    }