Health/Assets/Scripts/UI/NotificationPopupUI.cs

using System;
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;

public class NotificationPopupUI : MonoBehaviour
{
    private TextMeshProUGUI _title;
    private TextMeshProUGUI _description;
    private Animator _animator;

    private void Awake()
    {
        _title = transform.Find("Title").GetComponent<TextMeshProUGUI>();
        _description = transform.Find("Description").GetComponent<TextMeshProUGUI>();
        _animator = GetComponent<Animator>();
        transform.gameObject.SetActive(true);
        transform.GetComponent<CanvasGroup>().alpha = 0;
    }

    public IEnumerator Show(string title, string content)
    {
        if (!transform.gameObject.activeSelf)
            transform.gameObject.SetActive(true);
        transform.GetComponent<CanvasGroup>().alpha = 0;

        _title.text = title;
        _description.text = content;
        _animator.Play("In");        
        yield return new WaitForSeconds(3f);
        _animator.Play("Out");
    }
}