fix #269

优化场景挂起流程，支持中途取消挂起操作。

Assets/YooAsset/Runtime/ResourceManager/Handle/SceneHandle.cs

@@ -100,29 +100,21 @@ namespace YooAsset
             if (IsValidWithWarning == false)
                 return false;
 
-            // 注意：当场景挂起操作执行之后无法中途取消！
-            if (SceneObject.IsValid())
-            {
             if (Provider is DatabaseSceneProvider)
             {
-                    var temp = Provider as DatabaseSceneProvider;
+                var provider = Provider as DatabaseSceneProvider;
-                    return temp.UnSuspendLoad();
+                provider.UnSuspendLoad();
             }
             else if (Provider is BundledSceneProvider)
             {
-                    var temp = Provider as BundledSceneProvider;
+                var provider = Provider as BundledSceneProvider;
-                    return temp.UnSuspendLoad();
+                provider.UnSuspendLoad();
             }
             else
             {
                 throw new System.NotImplementedException();
             }
-            }
+            return true;
-            else
-            {
-                YooLogger.Warning($"Scene is invalid : {SceneObject.name}");
-                return false;
-            }
         }
 
         /// <summary>

Assets/YooAsset/Runtime/ResourceManager/Provider/BundledSceneProvider.cs

@@ -9,14 +9,14 @@ namespace YooAsset
     internal sealed class BundledSceneProvider : ProviderBase
     {
         public readonly LoadSceneMode SceneMode;
-        private readonly bool _suspendLoad;
         private AsyncOperation _asyncOperation;
+        private bool _suspendLoadMode;
 
         public BundledSceneProvider(ResourceManager manager, string providerGUID, AssetInfo assetInfo, LoadSceneMode sceneMode, bool suspendLoad) : base(manager, providerGUID, assetInfo)
         {
             SceneMode = sceneMode;
             SceneName = Path.GetFileNameWithoutExtension(assetInfo.AssetPath);
-            _suspendLoad = suspendLoad;
+            _suspendLoadMode = suspendLoad;
         }
         internal override void InternalOnStart()
         {
@@ -80,7 +80,7 @@ namespace YooAsset
                     _asyncOperation = SceneManager.LoadSceneAsync(MainAssetInfo.AssetPath, SceneMode);
                     if (_asyncOperation != null)
                     {
-                        _asyncOperation.allowSceneActivation = !_suspendLoad;
+                        _asyncOperation.allowSceneActivation = !_suspendLoadMode;
                         _asyncOperation.priority = 100;
                         SceneObject = SceneManager.GetSceneAt(SceneManager.sceneCount - 1);
                         _steps = ESteps.Checking;
@@ -106,6 +106,13 @@ namespace YooAsset
                     }
                     else
                     {
+                        // 注意：在业务层中途可以取消挂起
+                        if (_asyncOperation.allowSceneActivation == false)
+                        {
+                            if (_suspendLoadMode == false)
+                                _asyncOperation.allowSceneActivation = true;
+                        }
+
                         Progress = _asyncOperation.progress;
                         if (_asyncOperation.isDone == false)
                             return;
@@ -128,13 +135,12 @@ namespace YooAsset
         /// <summary>
         /// 解除场景加载挂起操作
         /// </summary>
-        public bool UnSuspendLoad()
+        public void UnSuspendLoad()
         {
-            if (_asyncOperation == null)
+            if (IsDone == false)
-                return false;
+            {
-
+                _suspendLoadMode = false;
-            _asyncOperation.allowSceneActivation = true;
+            }
-            return true;
         }
     }
 }

Assets/YooAsset/Runtime/ResourceManager/Provider/DatabaseSceneProvider.cs

@@ -9,14 +9,14 @@ namespace YooAsset
     internal sealed class DatabaseSceneProvider : ProviderBase
     {
         public readonly LoadSceneMode SceneMode;
-        private readonly bool _suspendLoad;
+        private bool _suspendLoadMode;
         private AsyncOperation _asyncOperation;
 
         public DatabaseSceneProvider(ResourceManager manager, string providerGUID, AssetInfo assetInfo, LoadSceneMode sceneMode, bool suspendLoad) : base(manager, providerGUID, assetInfo)
         {
             SceneMode = sceneMode;
             SceneName = Path.GetFileNameWithoutExtension(assetInfo.AssetPath);
-            _suspendLoad = suspendLoad;
+            _suspendLoadMode = suspendLoad;
         }
         internal override void InternalOnStart()
         {
@@ -69,7 +69,7 @@ namespace YooAsset
                     _asyncOperation = UnityEditor.SceneManagement.EditorSceneManager.LoadSceneAsyncInPlayMode(MainAssetInfo.AssetPath, loadSceneParameters);
                     if (_asyncOperation != null)
                     {
-                        _asyncOperation.allowSceneActivation = !_suspendLoad;
+                        _asyncOperation.allowSceneActivation = !_suspendLoadMode;
                         _asyncOperation.priority = 100;
                         SceneObject = SceneManager.GetSceneAt(SceneManager.sceneCount - 1);
                         _steps = ESteps.Checking;
@@ -95,6 +95,13 @@ namespace YooAsset
                     }
                     else
                     {
+                        // 注意：在业务层中途可以取消挂起
+                        if (_asyncOperation.allowSceneActivation == false)
+                        {
+                            if (_suspendLoadMode == false)
+                                _asyncOperation.allowSceneActivation = true;
+                        }
+
                         Progress = _asyncOperation.progress;
                         if (_asyncOperation.isDone == false)
                             return;
@@ -118,13 +125,12 @@ namespace YooAsset
         /// <summary>
         /// 解除场景加载挂起操作
         /// </summary>
-        public bool UnSuspendLoad()
+        public void UnSuspendLoad()
         {
-            if (_asyncOperation == null)
+            if (IsDone == false)
-                return false;
+            {
-
+                _suspendLoadMode = false;
-            _asyncOperation.allowSceneActivation = true;
+            }
-            return true;
         }
     }
 }