Unity_异步加载场景

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using System; using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.UI; using UnityEngine.SceneManagement;   public class GameScenesManager : MonoBehaviour {       AsyncOperation asynOp;     public Scrollbar processBar;     public Button enterScene;     public Text tip;       void Start () {         processBar.size = 0;         enterScene.onClick.AddListener(EnterGameScene);         processBar.gameObject.SetActive(false);         tip.gameObject.SetActive(false);     }       /// <summary>     /// 进入游戏场景     /// </summary>     void EnterGameScene()     {         processBar.gameObject.SetActive(true);         tip.gameObject.SetActive(true);         StartCoroutine(LoadGameScene());     }         IEnumerator LoadGameScene()     {         tip.text = "正在加载...请稍后";         asynOp = SceneManager.LoadSceneAsync("AsynLoadScene_1");         while (!asynOp.isDone)         {//如果场景没有加载完毕             processBar.size = asynOp.progress;             yield return null;         }           yield return new WaitForSeconds(0.5f);         tip.text = "加载完成";         asynOp.allowSceneActivation = true;     } }