ugui 事件 event

第一种

        button = gameObject.transform.GetComponent<Button>();
        button.onClick.AddListener(Click);

    private void Click()
    {
        //Debug.Log("Click"); 
    }

第二种

        EventTrigger.Entry entry = new EventTrigger.Entry();
        entry.eventID = EventTriggerType.PointerClick;
        //entry.callback = new EventTrigger.TriggerEvent();
        //UnityAction<BaseEventData> baseEvent = new UnityAction<BaseEventData>(trigger);
        entry.callback.AddListener(trigger);
        gameObject.AddComponent<EventTrigger>().triggers.Add(entry);

    private void trigger(BaseEventData eventdata)
    {
        Debug.Log("1111"); 
    }

第三种

实现接口

IPointerClickHandler