yichael_smartbow/Assets/BowArrow/Scripts/Manager/PopupMgr.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using DG.Tweening;

public class PopupMgr
{
    public static PopupMgr _ins;
    public static PopupMgr ins {
        get {
            if (_ins == null) {
                _ins = new PopupMgr();
            }
            return _ins;
        }
    }

    public void ShowTip(string text) {
        GameObject o = GameObject.Instantiate(Resources.Load<GameObject>("Prefabs/Popups/PopupCanvas"));
        Text textComp = o.transform.Find("Tip").GetComponent<Text>();
        textComp.text = text;
        GameObject.DontDestroyOnLoad(o);
        Sequence seq = DOTween.Sequence();
        seq.PrependInterval(3);
        seq.AppendCallback(() => {
            GameObject.Destroy(o);
        });
    }
}