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

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

public class HomeMgr : MonoBehaviour
{
    public static HomeMgr ins;

    void Awake()
    {
        ins = this;
    }

    void Start() {
        ResumeCacheViews();
    }

    void OnDestroy()
    {
        if (ins == this) ins = null;
    }

    #region 从主页到游戏场景，再回来时，恢复之前的页面
        static HashSet<MonoBehaviour> curCacheViews = new HashSet<MonoBehaviour>();

        public static void CacheView(MonoBehaviour view) {
            GameObject.DontDestroyOnLoad(view);
            curCacheViews.Add(view);
        }

        public static void RemoveCacheView(MonoBehaviour view) {
            curCacheViews.Remove(view);
        }

        public static void HideCacheViews() {
            foreach (var item in curCacheViews) item.gameObject.SetActive(false);
        }

        public void ResumeCacheViews() {
            foreach (var item in curCacheViews)  item.gameObject.SetActive(true);
        }
    #endregion
}