Unityボタンクリックズーム

次のコードをボタンにドラッグします 

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

public class ButtonHandler : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
{
    public void OnPointerDown(PointerEventData eventData)
    {
        transform.localScale = Vector3.one * 1.2f;
    }

    public void OnPointerUp(PointerEventData eventData)
    {
        transform.localScale = Vector3.one;
    }
}