ditzel

using UnityEngine;
using UnityEngine.EventSystems;

public class FixedButton : MonoBehaviour, IPointerUpHandler, IPointerDownHandler
{
    [HideInInspector]
    public bool Pressed;

    // Use this for initialization
    void Start()

randhirraj3130

step 1-import the following
using System.Text.RegularExpressions;
step 2- define 
public  const string MatchEmailPattern =
		@"^(([\w-]+\.)+[\w-]+|([a-zA-Z]{1}|[\w-]{2,}))@"
		+ @"((([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\."
		+ @"([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])){1}|"
		+ @"([a-zA-Z]+[\w-]+\.)+[a-zA-Z]{2,4})$";
    
    step 3-call the following function