Unity Raycast UI button and call its on click event

Question

Is there way to call the onclick event from a raycast? I have world scale canvas attached to an object that has images with buttons. When I select the button with the mouse my event function is called. But now I am trying to adjust the code so I can avoid using mouse all together.

[SerializeField]
private Image cursor;
[SerializeField]
private LayerMask uI;

if (Input.GetButtonDown("Fire1"))
    {
        Ray ray = Camera.main.ScreenPointToRay(cursor.transform.position);
        RaycastHit hit;
        if (Physics.Raycast(ray, out hit, 100,uI))
        {
            Debug.Log(hit.collider); 
        }
    }      

This is the code I use to raycast into the world space canvas which works and returns the images but I am not sure how I can now call the onclick event since I am not using the mouse but a image instead

Is there way to call the onclick event attached to image that I raycast to or do I have to redo my entire script and not use on click events?

Answer 1

Hen you hit a GameObject, get its list of components that implement OnPointerClick event

IPointerClickHandler clickHandler=collider.gameObject.GetComponent<IPointerClickHandler>();

once you have that reference (its not null) you can call

PointerEventData pointerEventData=new PointerEventData(EventSystem.current);
clickHandler.OnPointerClick(pointerEventData)

That should do the job