“SceneManager.activeSceneChanged” and “LoadSceneAsync” Issues

here is the original question.
https://stackoverflow.com/questions...ync-and?noredirect=1#comment76901505_44948508



first, there is a singleton object simply is subscribed to activeSceneChanged

SomeSingleton.cs

Code (CSharp):

1. void Awake ()
2. {
3.     Debug.LogError ("AWAKE");
4.  
5.     if (instance == null) {
6.         Debug.LogError ("instance == null");
7.  
8.         instance = this;
9.         MusicController.instance = this;
10.         SceneManager.activeSceneChanged += OnSceneChanged;
11.         DontDestroyOnLoad (this.gameObject);
12.     } else {
13.         Debug.LogError ("destroy");
14.  
15.         Destroy (this.gameObject);
16.     }
17. }
18.  
19.  
20. void OnSceneChanged (Scene previousScene, Scene changedScene)
21. {
22.     Debug.LogError ("OnSceneChanged changedScene = " + changedScene.name);
23. }

1. from Lobby Scene player moves to Room Scene.
2. in room scene.

the "Arena" Scene gets preloaded for better game experience.

Code (CSharp):

1. LoadSceneAsync("Arena")

with

Code (CSharp):

1. allowSceneActivation = false

when player clicks play button, sets allowSceneActivation = true

but when user decides to go back and clicks Leave Button, LoadScene("Lobby") gets called.

At this time in console, it will Log



LOG

Code (CSharp):

1. OnSceneChanged changedScene = Lobby // time : 0.793
2. OnSceneChanged changedScene = Room // time : 3.982

[when player clicks Leave Button]

Code (CSharp):

1. OnSceneChanged changedScene = Arena // time : 7.583
2. OnSceneChanged changedScene = Lobby // time : 7.583

like this...

it just gets activated but wont actually load the scene. why is Arena getting activatd? how to solve this problem??? should i do some unload thing to the AsyncLoading?


+ here are some more extra behind Logics.
======



when leave button clicked

Code (CSharp):

1. public void LeaveRoom ()
2. {
3.     print ("Leave Room And Move To Lobby");
4.     SetCanStartIfMasterClient (false);
5.     PhotonNetwork.LeaveRoom ();
6.     AdmobController.DestroyBanner ();
7.     Waiting.instance.StartWaiting (waitingForLeaveRoomData);
8.     SceneFader.instance.LoadSceneWhenFadingComplete (SceneType.Lobby);
9. }

in SceneFader.cs

Code (CSharp):

1. public enum SceneFadeType
2. {
3.     FadeIn = 1,
4.     FadeOut = -1
5. }
6.  
7.  
8. public class SceneFader : MonoBehaviour
9. {
10.  
11.     public static SceneFader instance;
12.     void Awake ()
13.     {
14.         instance = this;
15.  
16.         // StartFadeOut
17.         StartFading (SceneFadeType.FadeOut, null);
18.  
19.     }
20.  
21.  
22.     public void LoadSceneWhenFadingComplete (SceneType sceneType)
23.     {
24.         // 1. start Fading
25.         // 2. on fading complete, LoadScene
26.         StartFading
27.         (
28.             fadeType: SceneFadeType.FadeIn,
29.             onFadingComplete: () => {
30.                 SceneManager.LoadScene (sceneType.ToString ());
31.             }
32.         );
33.  
34.     }
35.  
36.     public void LoadSceneWhenFadingCompleteAsync (ScenePreloader scenePreloader)
37.     {
38.         // 1 start preloading scene
39.         // 2 on preloading complete, start fading
40.         // 3 on fading complete LoadScene
41.  
42.  
43.         scenePreloader.AddOnPreloadCompleteAndTriggerIfLoaded (
44.             onPreloadComplete: () => {
45.                 StartFading (
46.                     fadeType: SceneFadeType.FadeIn,
47.                     onFadingComplete: () => {
48.                         scenePreloader.ActivateSceneWhenReady ();
49.                     }
50.                 );
51.             }
52.         );
53.  
54.     }
55.  
56.     private void StartFading (SceneFadeType fadeType, Action onFadingComplete)
57.     {
58.         Debug.LogWarning ("StartFAding ");
59.         ScreenFader.instance.BeginFade (fadeType, onFadingComplete);
60.         AudioMasterController.instance.StartFading (fadeType, null);
61.     }
62.  
63.  
64. }

in ScenePreloader.cs

Code (CSharp):

1. public class ScenePreloader : MonoBehaviour
2. {
3.  
4.     Action<float> onPreloadRateChanged;
5.     Action onPreloadComplete;
6.     public AsyncOperation sceneLoader;
7.     public bool isPreloadCompleted;
8.  
9.  
10.     public void StartPreloadingScene (SceneType sceneType, LoadSceneMode loadSceneMode, Action<float> onPreloadRateChanged = null, Action onPreloadComplete = null)
11.     {
12.         this.onPreloadComplete = onPreloadComplete;
13.         this.onPreloadRateChanged = onPreloadRateChanged;
14.         StartCoroutine (PreloadSceneOperation (sceneType, loadSceneMode));
15.     }
16.  
17.  
18.     public IEnumerator PreloadSceneOperation (SceneType sceneType, LoadSceneMode loadSceneMode = LoadSceneMode.Single)
19.     {
20.         print ("PreloadSceneOperation sceneType = " + sceneType.ToString ());
21.         sceneLoader = SceneManager.LoadSceneAsync (sceneType.ToString (), loadSceneMode);
22.         sceneLoader.allowSceneActivation = false;
23.  
24.         while (!sceneLoader.isDone) {
25.             yield return null;
26.             if (sceneLoader.progress >= 0.9f) {
27.                 print ("onPreloadComplete");
28.                 isPreloadCompleted = true;
29.                 if (onPreloadComplete != null) {
30.                     onPreloadComplete ();
31.                 }
32.                 break;
33.             } else {
34.                 if (onPreloadRateChanged != null) {
35.                     onPreloadRateChanged (sceneLoader.progress);
36.                 }
37.             }
38.         }
39.     }
40.  
41.     public void ActivateSceneWhenReady ()
42.     {
43.  
44.         sceneLoader.allowSceneActivation = true;
45.  
46.     }
47.  
48.  
49.     public void AddOnPreloadCompleteAndTriggerIfLoaded (Action onPreloadComplete)
50.     {
51.         AddOnPreloadComplete (onPreloadComplete);
52.         if (isPreloadCompleted) {
53.             print ("isAlreadyLoadedTrigeringCallback");
54.             onPreloadComplete ();
55.         }
56.     }
57.  
58.     public void AddOnPreloadComplete (Action onPreloadComplete)
59.     {
60.         this.onPreloadComplete += onPreloadComplete;
61.     }
62.  
63.     public void SetOnLoadProgressValueChanged (Action<float> onLoadProgressValueChanged)
64.     {
65.         this.onPreloadRateChanged = onLoadProgressValueChanged;
66.     }
67.  
68.  
69. }

Help this poor guy!!

 

@Unity

do you guys have solution for this?