Simulation/Assets/Scripts/UI/PopUp/AlertManager.cs

using Cysharp.Threading.Tasks;
using UnityEngine;

namespace Octopus.Simulator.UI.Popup
{
    public class AlertManager : UnitySingleton<AlertManager>
    {
        private GameObject prefab;
        private UIAlert alert;


        private void Create()
        {
          
            if (alert == null)
            {
                if (prefab == null)
                {
                    prefab = Resources.Load("UIPrefab/UIAlert", typeof(GameObject)) as GameObject;
                }
                GameObject go = UnityEngine.Object.Instantiate(prefab);
                alert = go.GetComponent<UIAlert>();
            }
            var canvas = FindAnyObjectByType<Canvas_Main>();
            alert.transform.SetParent(canvas.transform, false);
        }

        public async UniTask ShowAlert(string title, string message, string okButtonTitle = "OK")
        {
            Create();

            bool isClosed = false;

            alert.Init(title: title, message: message, okButtonText: okButtonTitle, showCancelButton: false);
            alert.OnOk.AddListener(() =>
            {
                isClosed = true;
            });
            alert.Open();
            await UniTask.WaitUntil(() => isClosed == true);
        }

        public async UniTask<bool> ShowConfirm(string title, string message, string okButtonTitle = "OK", string cancelButtonTitle = "CANCEL")
        {
            Create();

            bool isClosed = false;
            bool result = false;

            alert.Init(title, message, okButtonTitle, cancelButtonTitle, true);

            alert.OnOk.AddListener(() =>
            {
                result = true;
                isClosed = true;
            });

            alert.OnCancel.AddListener(() =>
            {
                result = false;
                isClosed = true;
            });

            alert.Open();


            await UniTask.WaitUntil(() => isClosed == true);

            return result;
        }
    }

}