OnPointerDown and OnPointerUp doesn't work

[Maxik2k]

Hey! A have a strange issue - OnPointerDown and OnPointerUp events doesn’t work without any errors in the Editor. Here is my code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;   
    public class Touch : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
    {
        public bool is_Touched = false;
    
        public void OnPointerDown(PointerEventData eventData)
        {
            is_Touched = true;
            Debug.Log("Dowm");
        }
    
        public void OnPointerUp(PointerEventData eventData)
        {
            is_Touched = false;
            Debug.Log("Up");
        }
    }

and here is my game object with this script:

When I use OnMouseDown and OnMouseUp it works! But I don’t have to use this methods, because they don’t work correctly on my android device. What’s wrong with my OnPointerDown and OnPointerUp script?

[Maxik2k]

Ok, I have just solved this problem! I had to attached Physics 2D Raycaster component on my Camera. Hope it will help someone else

[Nadir_Alishly]

There are three steps you need to check:

1. Object has Collider component on it. (use right collider, 3d not works for 2d and reverse)
2. Camera has Physics 2D Raycaster component.
3. Project has EventSystem object. (can be alone without canvas and etc.)

Had same problem, and those solved my problem.

[M-Hanssen]

Are you sure you have the following things in place?:

• Collider on the monobehaviour (if it’s not a UI object)

• EventSystem (with StandaloneInputModule)

[ChangeMe12345]

OnPointerDown works like OnTriggerEnter system.

Create a canvas, under this one create an image that takes up the whole screen (click on rect image on the left-top corner, use option for mac or ctrl for windows).

So know you have Canvas, with an image full screen. Put your script with OnPointerDown handler or anything else.

Click on your screen

[Kennai]

Hello, @GG_WP_EASY !

I noticed one strange bug with this Pointer interfaces. if your class dosnt implement IPointerMoveHandler, then IPointerUpHandler is called when you first time move pressed finger.

Add IPointerMoveHandler interface with dummy method and check again if it fixed your problem on Android.

[BradyIrv]

Does the object which has this script attached to it have the “Event Trigger” component?