onClick event for Image in Unity

Question

Is it possible add "onClick" function to an Image (a component of a canvas) in Unity ?

var obj = new GameObject();
Image NewImage = obj.AddComponent<Image>();
NewImage.sprite = Resources.Load<Sprite>(a + "/" + obj.name) as Sprite;
obj.SetActive(true);
obj.AddComponent<ClickAction>();

How can I add action for "onClick" event?

Answer 1

Supposing that ClickAction is your script, you could implement the OnClick functionality in the following way:

using UnityEngine.EventSystems;

public class ClickAction : MonoBehaviour, IPointerClickHandler
{ 
    public void OnPointerClick(PointerEventData eventData)
    {
        // OnClick code goes here ...
    }
}

The namespace UnityEngine.EventSystems supplies you with the IPointerClickHandler interface. When your image is clicked, the code inside OnPointerClick will run.