Unity Long Press script

unity-long-press.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Events;
using System;

public class LongPress : MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IPointerExitHandler
{
    [Tooltip("Time before the long press triggered")]
    public float holdTime = 0.001f;

    [Tooltip("long press event trigger interval")]
    public float intervalTime = 0.001f;

    public UnityEvent onClick = new UnityEvent();

    public UnityEvent onLongPress = new UnityEvent();

    public void OnPointerDown(PointerEventData eventData)
    {
        onClick.Invoke();
        InvokeRepeating("OnLongPress", holdTime, intervalTime);
    }

    public void OnPointerUp(PointerEventData eventData)
    {
        //Debug.Log("Stop Long Pressing");
        CancelInvoke("OnLongPress");
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        //Debug.Log("Stop Long Pressing");
        CancelInvoke("OnLongPress");
    }

    private void OnLongPress()
    {
        try
        {
            //Debug.Log("Long Press is ongoing");
            onLongPress.Invoke();
        }
        catch (Exception ex)
        {
            Debug.Log(ex.ToString());
        }
    }
}