tap on Sprite in AR foundation

hi
i am new for AR Foundation and want to work on it.
i want to perform some task on tap of sprite with ray-casting in AR foundation(Ar kit) like i have multiple sprite n i want to use them as a button.
Please help me how i will do it....
Thanks in advance

 

Make sure your sprites have Colliders and then you can do something like this in Update function:

if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began)
{
*button action*
}

 

Thanx@underkitten