Update CHANGELOG.md

内置清单构建

Assets/YooAsset/CHANGELOG.md

@@ -2,6 +2,60 @@
 
 All notable changes to this package will be documented in this file.
 
+## [2.3.14] - 2025-07-23
+
+**重要**：**所有下载相关的超时参数（timeout）已更新判定逻辑**
+
+超时不再以‘指定时间内未接收到任何数据’为判定条件，而是以‘指定时间内未完成整个下载任务’为判定条件。
+
+### Improvements
+
+- 重构了核心代码的下载逻辑，解决了同步加载触发的下载任务没有完成的问题。
+- 扩展工程里新增了PreprocessBuildCatalog类，用于处理在构建应用程序前自动生成内置资源目录文件。
+- (#592) 优化了资源清单逻辑里不必要产生的GC逻辑。
+
+### Fixed
+
+- (#590) 修复了TryUnloadUnusedAsset方法，在依赖嵌套层数过深导致没有卸载的问题。
+
+### Added
+
+- 新增了支持Google Play的文件系统扩展示例。
+
+- 新增了支持DefaultCacheFileSystem的单元测试用例。
+
+- 新增了文件系统配置参数：DISABLE_ONDEMAND_DOWNLOAD
+
+  ```csharp
+  public class FileSystemParametersDefine
+  {
+      // 禁用边玩边下机制
+      public const string DISABLE_ONDEMAND_DOWNLOAD = "DISABLE_ONDEMAND_DOWNLO";
+  }
+  ```
+
+### Changed
+
+- IManifestServices接口拆分为了IManifestProcessServices和IManifestRestoreServices
+
+  ```csharp
+  public interface IManifestProcessServices
+  {
+      /// <summary>
+      /// 处理资源清单（压缩或加密）
+      /// </summary>
+      byte[] ProcessManifest(byte[] fileData);
+  }
+  
+  public interface IManifestRestoreServices
+  {
+      /// <summary>
+      /// 还原资源清单（解压或解密）
+      /// </summary>
+      byte[] RestoreManifest(byte[] fileData);
+  }
+  ```
+
 ## [2.3.12] - 2025-07-01
 
 ### Improvements

Assets/YooAsset/Editor/AssetBundleBuilder/AssetBundleBuilderSetting.cs

@@ -79,15 +79,27 @@ namespace YooAsset.Editor
             EditorPrefs.SetString(key, encyptionClassName);
         }
 
-        // ManifestServicesClassName
-        public static string GetPackageManifestServicesClassName(string packageName, string buildPipeline)
+        // ManifestProcessServicesClassName
+        public static string GetPackageManifestProcessServicesClassName(string packageName, string buildPipeline)
         {
-            string key = $"{Application.productName}_{packageName}_{buildPipeline}_ManifestServicesClassName";
-            return EditorPrefs.GetString(key, $"{typeof(ManifestNone).FullName}");
+            string key = $"{Application.productName}_{packageName}_{buildPipeline}_ManifestProcessServicesClassName";
+            return EditorPrefs.GetString(key, $"{typeof(ManifestProcessNone).FullName}");
         }
-        public static void SetPackageManifestServicesClassName(string packageName, string buildPipeline, string encyptionClassName)
+        public static void SetPackageManifestProcessServicesClassName(string packageName, string buildPipeline, string encyptionClassName)
         {
-            string key = $"{Application.productName}_{packageName}_{buildPipeline}_ManifestServicesClassName";
+            string key = $"{Application.productName}_{packageName}_{buildPipeline}_ManifestProcessServicesClassName";
+            EditorPrefs.SetString(key, encyptionClassName);
+        }
+
+        // ManifestRestoreServicesClassName
+        public static string GetPackageManifestRestoreServicesClassName(string packageName, string buildPipeline)
+        {
+            string key = $"{Application.productName}_{packageName}_{buildPipeline}_ManifestRestoreServicesClassName";
+            return EditorPrefs.GetString(key, $"{typeof(ManifestRestoreNone).FullName}");
+        }
+        public static void SetPackageManifestRestoreServicesClassName(string packageName, string buildPipeline, string encyptionClassName)
+        {
+            string key = $"{Application.productName}_{packageName}_{buildPipeline}_ManifestRestoreServicesClassName";
             EditorPrefs.SetString(key, encyptionClassName);
         }
 

Assets/YooAsset/Editor/AssetBundleBuilder/BuildParameters.cs

@@ -99,10 +99,14 @@ namespace YooAsset.Editor
         public IEncryptionServices EncryptionServices;
 
         /// <summary>
-        /// 资源清单服务类
+        /// 资源清单加密服务类
         /// </summary>
-        public IManifestServices ManifestServices;
+        public IManifestProcessServices ManifestProcessServices;
 
+        /// <summary>
+        /// 资源清单解密服务类
+        /// </summary>
+        public IManifestRestoreServices ManifestRestoreServices;
 
         private string _pipelineOutputDirectory = string.Empty;
         private string _packageOutputDirectory = string.Empty;

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCreateCatalog.cs

@@ -14,8 +14,8 @@ namespace YooAsset.Editor
         {
             string buildinRootDirectory = buildParametersContext.GetBuildinRootDirectory();
             string buildPackageName = buildParametersContext.Parameters.PackageName;
-            var manifestServices = buildParametersContext.Parameters.ManifestServices;
-            DefaultBuildinFileSystemBuild.CreateBuildinCatalogFile(manifestServices, buildPackageName, buildinRootDirectory);
+            var manifestServices = buildParametersContext.Parameters.ManifestRestoreServices;
+            CatalogTools.CreateCatalogFile(manifestServices, buildPackageName, buildinRootDirectory);
 
             // 刷新目录
             AssetDatabase.Refresh();

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCreateManifest.cs

@@ -72,7 +72,7 @@ namespace YooAsset.Editor
             {
                 string fileName = YooAssetSettingsData.GetManifestBinaryFileName(buildParameters.PackageName, buildParameters.PackageVersion);
                 packagePath = $"{packageOutputDirectory}/{fileName}";
-                ManifestTools.SerializeToBinary(packagePath, manifest, buildParameters.ManifestServices);
+                ManifestTools.SerializeToBinary(packagePath, manifest, buildParameters.ManifestProcessServices);
                 packageHash = HashUtility.FileCRC32(packagePath);
                 BuildLogger.Log($"Create package manifest file: {packagePath}");
             }
@@ -97,7 +97,7 @@ namespace YooAsset.Editor
             {
                 ManifestContext manifestContext = new ManifestContext();
                 byte[] bytesData = FileUtility.ReadAllBytes(packagePath);
-                manifestContext.Manifest = ManifestTools.DeserializeFromBinary(bytesData, buildParameters.ManifestServices);
+                manifestContext.Manifest = ManifestTools.DeserializeFromBinary(bytesData, buildParameters.ManifestRestoreServices);
                 context.SetContextObject(manifestContext);
             }
         }

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCreateReport.cs

@@ -44,7 +44,9 @@ namespace YooAsset.Editor
                 buildReport.Summary.SingleReferencedPackAlone = buildParameters.SingleReferencedPackAlone;
                 buildReport.Summary.FileNameStyle = buildParameters.FileNameStyle;
                 buildReport.Summary.EncryptionServicesClassName = buildParameters.EncryptionServices == null ? "null" : buildParameters.EncryptionServices.GetType().FullName;
-                buildReport.Summary.ManifestServicesClassName = buildParameters.ManifestServices == null ? "null" : buildParameters.ManifestServices.GetType().FullName;
+                buildReport.Summary.ManifestProcessServicesClassName = buildParameters.ManifestProcessServices == null ? "null" : buildParameters.ManifestProcessServices.GetType().FullName;
+                buildReport.Summary.ManifestRestoreServicesClassName = buildParameters.ManifestRestoreServices == null ? "null" : buildParameters.ManifestRestoreServices.GetType().FullName;
+
                 if (buildParameters is BuiltinBuildParameters)
                 {
                     var builtinBuildParameters = buildParameters as BuiltinBuildParameters;

Assets/YooAsset/Editor/AssetBundleBuilder/DefaultManifestServices.cs

@@ -1,13 +1,17 @@
 
 namespace YooAsset.Editor
 {
-    public class ManifestNone : IManifestServices
+    public class ManifestProcessNone : IManifestProcessServices
     {
-        public byte[] ProcessManifest(byte[] fileData)
+        byte[] IManifestProcessServices.ProcessManifest(byte[] fileData)
         {
             return fileData;
         }
-        public byte[] RestoreManifest(byte[] fileData)
+    }
+    
+    public class ManifestRestoreNone : IManifestRestoreServices
+    {
+        byte[] IManifestRestoreServices.RestoreManifest(byte[] fileData)
         {
             return fileData;
         }

Assets/YooAsset/Editor/AssetBundleBuilder/VisualViewers/BuildPipelineViewerBase.cs

@@ -44,7 +44,7 @@ namespace YooAsset.Editor
         }
 
         /// <summary>
-        /// 创建资源加密服务类实例
+        /// 创建资源包加密服务类实例
         /// </summary>
         protected IEncryptionServices CreateEncryptionServicesInstance()
         {
@@ -58,15 +58,29 @@ namespace YooAsset.Editor
         }
 
         /// <summary>
-        /// 创建资源清单服务类实例
+        /// 创建资源清单加密服务类实例
         /// </summary>
-        protected IManifestServices CreateManifestServicesInstance()
+        protected IManifestProcessServices CreateManifestProcessServicesInstance()
         {
-            var className = AssetBundleBuilderSetting.GetPackageManifestServicesClassName(PackageName, PipelineName);
-            var classTypes = EditorTools.GetAssignableTypes(typeof(IManifestServices));
+            var className = AssetBundleBuilderSetting.GetPackageManifestProcessServicesClassName(PackageName, PipelineName);
+            var classTypes = EditorTools.GetAssignableTypes(typeof(IManifestProcessServices));
             var classType = classTypes.Find(x => x.FullName.Equals(className));
             if (classType != null)
-                return (IManifestServices)Activator.CreateInstance(classType);
+                return (IManifestProcessServices)Activator.CreateInstance(classType);
+            else
+                return null;
+        }
+
+        /// <summary>
+        /// 创建资源清单解密服务类实例
+        /// </summary>
+        protected IManifestRestoreServices CreateManifestRestoreServicesInstance()
+        {
+            var className = AssetBundleBuilderSetting.GetPackageManifestRestoreServicesClassName(PackageName, PipelineName);
+            var classTypes = EditorTools.GetAssignableTypes(typeof(IManifestRestoreServices));
+            var classType = classTypes.Find(x => x.FullName.Equals(className));
+            if (classType != null)
+                return (IManifestRestoreServices)Activator.CreateInstance(classType);
             else
                 return null;
         }
@@ -169,7 +183,7 @@ namespace YooAsset.Editor
         }
         protected PopupField<Type> CreateEncryptionServicesField(VisualElement container)
         {
-            // 加密服务类
+            // 资源包加密服务类
             var classTypes = EditorTools.GetAssignableTypes(typeof(IEncryptionServices));
             if (classTypes.Count > 0)
             {
@@ -198,22 +212,22 @@ namespace YooAsset.Editor
                 return popupField;
             }
         }
-        protected PopupField<Type> CreateManifestServicesField(VisualElement container)
+        protected PopupField<Type> CreateManifestProcessServicesField(VisualElement container)
         {
-            // 清单服务类
-            var classTypes = EditorTools.GetAssignableTypes(typeof(IManifestServices));
+            // 资源清单加密服务类
+            var classTypes = EditorTools.GetAssignableTypes(typeof(IManifestProcessServices));
             if (classTypes.Count > 0)
             {
-                var className = AssetBundleBuilderSetting.GetPackageManifestServicesClassName(PackageName, PipelineName);
+                var className = AssetBundleBuilderSetting.GetPackageManifestProcessServicesClassName(PackageName, PipelineName);
                 int defaultIndex = classTypes.FindIndex(x => x.FullName.Equals(className));
                 if (defaultIndex < 0)
                     defaultIndex = 0;
                 var popupField = new PopupField<Type>(classTypes, defaultIndex);
-                popupField.label = "Manifest Services";
+                popupField.label = "Manifest Process Services";
                 popupField.style.width = StyleWidth;
                 popupField.RegisterValueChangedCallback(evt =>
                 {
-                    AssetBundleBuilderSetting.SetPackageManifestServicesClassName(PackageName, PipelineName, popupField.value.FullName);
+                    AssetBundleBuilderSetting.SetPackageManifestProcessServicesClassName(PackageName, PipelineName, popupField.value.FullName);
                 });
                 container.Add(popupField);
                 UIElementsTools.SetElementLabelMinWidth(popupField, LabelMinWidth);
@@ -222,7 +236,38 @@ namespace YooAsset.Editor
             else
             {
                 var popupField = new PopupField<Type>();
-                popupField.label = "Manifest Services";
+                popupField.label = "Manifest Process Services";
+                popupField.style.width = StyleWidth;
+                container.Add(popupField);
+                UIElementsTools.SetElementLabelMinWidth(popupField, LabelMinWidth);
+                return popupField;
+            }
+        }
+        protected PopupField<Type> CreateManifestRestoreServicesField(VisualElement container)
+        {
+            // 资源清单加密服务类
+            var classTypes = EditorTools.GetAssignableTypes(typeof(IManifestRestoreServices));
+            if (classTypes.Count > 0)
+            {
+                var className = AssetBundleBuilderSetting.GetPackageManifestRestoreServicesClassName(PackageName, PipelineName);
+                int defaultIndex = classTypes.FindIndex(x => x.FullName.Equals(className));
+                if (defaultIndex < 0)
+                    defaultIndex = 0;
+                var popupField = new PopupField<Type>(classTypes, defaultIndex);
+                popupField.label = "Manifest Restore Services";
+                popupField.style.width = StyleWidth;
+                popupField.RegisterValueChangedCallback(evt =>
+                {
+                    AssetBundleBuilderSetting.SetPackageManifestRestoreServicesClassName(PackageName, PipelineName, popupField.value.FullName);
+                });
+                container.Add(popupField);
+                UIElementsTools.SetElementLabelMinWidth(popupField, LabelMinWidth);
+                return popupField;
+            }
+            else
+            {
+                var popupField = new PopupField<Type>();
+                popupField.label = "Manifest Restore Services";
                 popupField.style.width = StyleWidth;
                 container.Add(popupField);
                 UIElementsTools.SetElementLabelMinWidth(popupField, LabelMinWidth);

Assets/YooAsset/Editor/AssetBundleBuilder/VisualViewers/BuiltinBuildPipeline/BuiltinBuildPipelineViewer.cs

@@ -17,7 +17,8 @@ namespace YooAsset.Editor
         protected TextField _buildOutputField;
         protected TextField _buildVersionField;
         protected PopupField<Type> _encryptionServicesField;
-        protected PopupField<Type> _manifestServicesField;
+        protected PopupField<Type> _manifestProcessServicesField;
+        protected PopupField<Type> _manifestRestoreServicesField;
         protected EnumField _compressionField;
         protected EnumField _outputNameStyleField;
         protected EnumField _copyBuildinFileOptionField;
@@ -47,7 +48,8 @@ namespace YooAsset.Editor
             // 服务类
             var popupContainer = Root.Q("PopupContainer");
             _encryptionServicesField = CreateEncryptionServicesField(popupContainer);
-            _manifestServicesField = CreateManifestServicesField(popupContainer);
+            _manifestProcessServicesField = CreateManifestProcessServicesField(popupContainer);
+            _manifestRestoreServicesField = CreateManifestRestoreServicesField(popupContainer);
 
             // 压缩方式选项
             _compressionField = Root.Q<EnumField>("Compression");
@@ -120,7 +122,8 @@ namespace YooAsset.Editor
             buildParameters.ClearBuildCacheFiles = clearBuildCache;
             buildParameters.UseAssetDependencyDB = useAssetDependencyDB;
             buildParameters.EncryptionServices = CreateEncryptionServicesInstance();
-            buildParameters.ManifestServices = CreateManifestServicesInstance();
+            buildParameters.ManifestProcessServices = CreateManifestProcessServicesInstance();
+            buildParameters.ManifestRestoreServices = CreateManifestRestoreServicesInstance();
 
             BuiltinBuildPipeline pipeline = new BuiltinBuildPipeline();
             var buildResult = pipeline.Run(buildParameters, true);

Assets/YooAsset/Editor/AssetBundleBuilder/VisualViewers/RawfileBuildpipeline/RawfileBuildPipelineViewer.cs

@@ -17,7 +17,8 @@ namespace YooAsset.Editor
         protected TextField _buildOutputField;
         protected TextField _buildVersionField;
         protected PopupField<Type> _encryptionServicesField;
-        protected PopupField<Type> _manifestServicesField;
+        protected PopupField<Type> _manifestProcessServicesField;
+        protected PopupField<Type> _manifestRestoreServicesField;
         protected EnumField _outputNameStyleField;
         protected EnumField _copyBuildinFileOptionField;
         protected TextField _copyBuildinFileTagsField;
@@ -46,7 +47,8 @@ namespace YooAsset.Editor
             // 加密方法
             var popupContainer = Root.Q("PopupContainer");
             _encryptionServicesField = CreateEncryptionServicesField(popupContainer);
-            _manifestServicesField = CreateManifestServicesField(popupContainer);
+            _manifestProcessServicesField = CreateManifestProcessServicesField(popupContainer);
+            _manifestRestoreServicesField = CreateManifestRestoreServicesField(popupContainer);
 
             // 输出文件名称样式
             _outputNameStyleField = Root.Q<EnumField>("FileNameStyle");
@@ -112,7 +114,8 @@ namespace YooAsset.Editor
             buildParameters.ClearBuildCacheFiles = clearBuildCache;
             buildParameters.UseAssetDependencyDB = useAssetDependencyDB;
             buildParameters.EncryptionServices = CreateEncryptionServicesInstance();
-            buildParameters.ManifestServices = CreateManifestServicesInstance();
+            buildParameters.ManifestProcessServices = CreateManifestProcessServicesInstance();
+            buildParameters.ManifestRestoreServices = CreateManifestRestoreServicesInstance();
 
             RawFileBuildPipeline pipeline = new RawFileBuildPipeline();
             var buildResult = pipeline.Run(buildParameters, true);

Assets/YooAsset/Editor/AssetBundleBuilder/VisualViewers/ScriptableBuildPipeline/ScriptableBuildPipelineViewer.cs

@@ -17,7 +17,8 @@ namespace YooAsset.Editor
         protected TextField _buildOutputField;
         protected TextField _buildVersionField;
         protected PopupField<Type> _encryptionServicesField;
-        protected PopupField<Type> _manifestServicesField;
+        protected PopupField<Type> _manifestProcessServicesField;
+        protected PopupField<Type> _manifestRestoreServicesField;
         protected EnumField _compressionField;
         protected EnumField _outputNameStyleField;
         protected EnumField _copyBuildinFileOptionField;
@@ -47,7 +48,8 @@ namespace YooAsset.Editor
             // 加密方法
             var popupContainer = Root.Q("PopupContainer");
             _encryptionServicesField = CreateEncryptionServicesField(popupContainer);
-            _manifestServicesField = CreateManifestServicesField(popupContainer);
+            _manifestProcessServicesField = CreateManifestProcessServicesField(popupContainer);
+            _manifestRestoreServicesField = CreateManifestRestoreServicesField(popupContainer);
 
             // 压缩方式选项
             _compressionField = Root.Q<EnumField>("Compression");
@@ -122,7 +124,8 @@ namespace YooAsset.Editor
             buildParameters.UseAssetDependencyDB = useAssetDependencyDB;
             buildParameters.BuiltinShadersBundleName = builtinShaderBundleName;
             buildParameters.EncryptionServices = CreateEncryptionServicesInstance();
-            buildParameters.ManifestServices = CreateManifestServicesInstance();
+            buildParameters.ManifestProcessServices = CreateManifestProcessServicesInstance();
+            buildParameters.ManifestRestoreServices = CreateManifestRestoreServicesInstance();
 
             ScriptableBuildPipeline pipeline = new ScriptableBuildPipeline();
             var buildResult = pipeline.Run(buildParameters, true);

Assets/YooAsset/Editor/AssetBundleReporter/ReportSummary.cs

@@ -72,7 +72,8 @@ namespace YooAsset.Editor
         public bool EnableSharePackRule;
         public bool SingleReferencedPackAlone;
         public string EncryptionServicesClassName;
-        public string ManifestServicesClassName;
+        public string ManifestProcessServicesClassName;
+        public string ManifestRestoreServicesClassName;
         public EFileNameStyle FileNameStyle;
         
         // 引擎参数

Assets/YooAsset/Editor/AssetBundleReporter/VisualViewers/ReporterSummaryViewer.cs

@@ -67,7 +67,8 @@ namespace YooAsset.Editor
             BindListViewItem("Enable Share Pack Rule", $"{buildReport.Summary.EnableSharePackRule}");
             BindListViewItem("Single Referenced Pack Alone", $"{buildReport.Summary.SingleReferencedPackAlone}");
             BindListViewItem("Encryption Services", buildReport.Summary.EncryptionServicesClassName);
-            BindListViewItem("Manifest Services", buildReport.Summary.ManifestServicesClassName);
+            BindListViewItem("Manifest Process Services", buildReport.Summary.ManifestProcessServicesClassName);
+            BindListViewItem("Manifest Restore Services", buildReport.Summary.ManifestRestoreServicesClassName);
             BindListViewItem("FileNameStyle", $"{buildReport.Summary.FileNameStyle}");
             BindListViewItem("CompressOption", $"{buildReport.Summary.CompressOption}");
             BindListViewItem("DisableWriteTypeTree", $"{buildReport.Summary.DisableWriteTypeTree}");

Assets/YooAsset/Runtime/Assembly/AssemblyInfo.cs

@@ -2,6 +2,7 @@
 
 // 内部友元
 [assembly: InternalsVisibleTo("YooAsset.Editor")]
+[assembly: InternalsVisibleTo("YooAsset.Test")]
 [assembly: InternalsVisibleTo("YooAsset.Test.Editor")]
 
 // 外部友元

Assets/YooAsset/Runtime/DownloadSystem/DownloadDefine.cs

@@ -94,4 +94,25 @@ namespace YooAsset
         /// </summary>
         public long FileSize;
     }
+
+    /// <summary>
+    /// 导入文件的信息
+    /// </summary>
+    public struct ImportFileInfo
+    {
+        /// <summary>
+        /// 本地文件路径
+        /// </summary>
+        public string FilePath;
+
+        /// <summary>
+        /// 资源包名称
+        /// </summary>
+        public string BundleName;
+
+        /// <summary>
+        /// 资源包GUID
+        /// </summary>
+        public string BundleGUID;
+    }
 }

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityAssetBundleRequestOperation.cs

@@ -1,16 +1,32 @@
-using UnityEngine;
-using UnityEngine.Networking;
+using UnityEngine.Networking;
+using UnityEngine;
 
 namespace YooAsset
 {
-    internal class DownloadWebNormalAssetBundleOperation : DownloadAssetBundleOperation
+    internal class UnityAssetBundleRequestOperation : UnityWebRequestOperation
     {
-        private readonly bool _disableUnityWebCache;
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            Download,
+            Done,
+        }
+
+        private UnityWebRequestAsyncOperation _requestOperation;
         private DownloadHandlerAssetBundle _downloadhandler;
+        private readonly PackageBundle _packageBundle;
+        private readonly bool _disableUnityWebCache;
         private ESteps _steps = ESteps.None;
 
-        internal DownloadWebNormalAssetBundleOperation(bool disableUnityWebCache, PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
+        /// <summary>
+        /// 请求结果
+        /// </summary>
+        public AssetBundle Result { private set; get; }
+
+        internal UnityAssetBundleRequestOperation(PackageBundle packageBundle, bool disableUnityWebCache, string url) : base(url)
         {
+            _packageBundle = packageBundle;
             _disableUnityWebCache = disableUnityWebCache;
         }
         internal override void InternalStart()
@@ -22,34 +38,20 @@ namespace YooAsset
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
-            // 创建下载器
             if (_steps == ESteps.CreateRequest)
             {
-                // 获取请求地址
-                _requestURL = GetRequestURL();
-
-                // 重置变量
-                ResetRequestFiled();
-
-                // 创建下载器
                 CreateWebRequest();
-
-                _steps = ESteps.CheckRequest;
+                _steps = ESteps.Download;
             }
 
-            // 检测下载结果
-            if (_steps == ESteps.CheckRequest)
+            if (_steps == ESteps.Download)
             {
                 DownloadProgress = _webRequest.downloadProgress;
                 DownloadedBytes = (long)_webRequest.downloadedBytes;
-                Progress = DownloadProgress;
-                if (_webRequest.isDone == false)
-                {
-                    CheckRequestTimeout();
+                Progress = _requestOperation.progress;
+                if (_requestOperation.isDone == false)
                     return;
-                }
 
-                // 检查网络错误
                 if (CheckRequestResult())
                 {
                     AssetBundle assetBundle = _downloadhandler.assetBundle;
@@ -57,7 +59,7 @@ namespace YooAsset
                     {
                         _steps = ESteps.Done;
                         Status = EOperationStatus.Failed;
-                        Error = "Download handler asset bundle object is null !";
+                        Error = $"URL : {_requestURL} Download handler asset bundle object is null !";
                     }
                     else
                     {
@@ -68,37 +70,13 @@ namespace YooAsset
                 }
                 else
                 {
-                    _steps = ESteps.TryAgain;
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
                 }
 
                 // 注意：最终释放请求器
-                DisposeWebRequest();
+                DisposeRequest();
             }
-
-            // 重新尝试下载
-            if (_steps == ESteps.TryAgain)
-            {
-                if (FailedTryAgain <= 0)
-                {
-                    Status = EOperationStatus.Failed;
-                    _steps = ESteps.Done;
-                    YooLogger.Error(Error);
-                    return;
-                }
-
-                _tryAgainTimer += Time.unscaledDeltaTime;
-                if (_tryAgainTimer > 1f)
-                {
-                    FailedTryAgain--;
-                    _steps = ESteps.CreateRequest;
-                    YooLogger.Warning(Error);
-                }
-            }
-        }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeWebRequest();
         }
 
         private void CreateWebRequest()
@@ -107,22 +85,13 @@ namespace YooAsset
             _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
             _webRequest.downloadHandler = _downloadhandler;
             _webRequest.disposeDownloadHandlerOnDispose = true;
-            _webRequest.SendWebRequest();
-        }
-        private void DisposeWebRequest()
-        {
-            if (_webRequest != null)
-            {
-                //注意：引擎底层会自动调用Abort方法
-                _webRequest.Dispose();
-                _webRequest = null;
-            }
+            _requestOperation = _webRequest.SendWebRequest();
         }
         private DownloadHandlerAssetBundle CreateWebDownloadHandler()
         {
             if (_disableUnityWebCache)
             {
-                var downloadhandler = new DownloadHandlerAssetBundle(_requestURL, Bundle.UnityCRC);
+                var downloadhandler = new DownloadHandlerAssetBundle(_requestURL, _packageBundle.UnityCRC);
 #if UNITY_2020_3_OR_NEWER
                 downloadhandler.autoLoadAssetBundle = false;
 #endif
@@ -132,8 +101,8 @@ namespace YooAsset
             {
                 // 注意：优先从浏览器缓存里获取文件
                 // The file hash defining the version of the asset bundle.
-                Hash128 fileHash = Hash128.Parse(Bundle.FileHash);
-                var downloadhandler = new DownloadHandlerAssetBundle(_requestURL, fileHash, Bundle.UnityCRC);
+                Hash128 fileHash = Hash128.Parse(_packageBundle.FileHash);
+                var downloadhandler = new DownloadHandlerAssetBundle(_requestURL, fileHash, _packageBundle.UnityCRC);
 #if UNITY_2020_3_OR_NEWER
                 downloadhandler.autoLoadAssetBundle = false;
 #endif

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityAssetBundleRequestOperation.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 8088863fc7dfbd441bc897380cd7b97f
+guid: e01cc308d7179a34281087fafe455b42
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebCacheRequestOperation.cs

@@ -0,0 +1,89 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine.Networking;
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal class UnityWebCacheRequestOperation : UnityWebRequestOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            Download,
+            Done,
+        }
+
+        private UnityWebRequestAsyncOperation _requestOperation;
+        private readonly Dictionary<string, string> _headers = new Dictionary<string, string>();
+        private ESteps _steps = ESteps.None;
+
+
+        internal UnityWebCacheRequestOperation(string url) : base(url)
+        {
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.CreateRequest)
+            {
+                CreateWebRequest();
+                _steps = ESteps.Download;
+            }
+
+            if (_steps == ESteps.Download)
+            {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
+                Progress = _requestOperation.progress;
+                if (_requestOperation.isDone == false)
+                    return;
+
+                if (CheckRequestResult())
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                }
+
+                // 注意：最终释放请求器
+                DisposeRequest();
+            }
+        }
+
+        /// <summary>
+        /// 设置请求头信息
+        /// </summary>
+        public void SetRequestHeader(string name, string value)
+        {
+            _headers.Add(name, value);
+        }
+
+        private void CreateWebRequest()
+        {
+            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+
+            // 设置消息头
+            foreach (var keyValuePair in _headers)
+            {
+                string name = keyValuePair.Key;
+                string value = keyValuePair.Value;
+                _webRequest.SetRequestHeader(name, value);
+            }
+
+            _requestOperation = _webRequest.SendWebRequest();
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebCacheRequestOperation.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 94254ab8e4496214884c11a891c131c6
+guid: 375d88bcf5b9a6146adaf98ceb5369f8
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebDataRequestOperation.cs

@@ -5,7 +5,23 @@ namespace YooAsset
 {
     internal class UnityWebDataRequestOperation : UnityWebRequestOperation
     {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            Download,
+            Done,
+        }
+
         private UnityWebRequestAsyncOperation _requestOperation;
+        private ESteps _steps = ESteps.None;
+
+        /// <summary>
+        /// 响应的超时时间（单位：秒），在经过Timeout的秒数后尝试中止。
+        /// 注意：当Timeout设置为0时，不会应用超时。
+        /// 注意：设置的超时值可能应用于Android上的每个URL重定向，这可能会导致响应时间增加。
+        /// </summary>
+        private readonly int _timeout;
 
         /// <summary>
         /// 请求结果
@@ -13,8 +29,9 @@ namespace YooAsset
         public byte[] Result { private set; get; }
 
 
-        internal UnityWebDataRequestOperation(string url, int timeout = 60) : base(url, timeout)
+        internal UnityWebDataRequestOperation(string url, int timeout) : base(url)
         {
+            _timeout = timeout;
         }
         internal override void InternalStart()
         {
@@ -27,27 +44,33 @@ namespace YooAsset
 
             if (_steps == ESteps.CreateRequest)
             {
-                _latestDownloadBytes = 0;
-                _latestDownloadRealtime = Time.realtimeSinceStartup;
-
                 CreateWebRequest();
                 _steps = ESteps.Download;
             }
 
             if (_steps == ESteps.Download)
             {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
                 Progress = _requestOperation.progress;
                 if (_requestOperation.isDone == false)
-                {
-                    CheckRequestTimeout();
                     return;
-                }
 
                 if (CheckRequestResult())
                 {
-                    _steps = ESteps.Done;
-                    Result = _webRequest.downloadHandler.data;
-                    Status = EOperationStatus.Succeed;
+                    var fileData = _webRequest.downloadHandler.data;
+                    if (fileData == null || fileData.Length == 0)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"URL : {_requestURL} Download handler data is null or empty !";
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Result = fileData;
+                        Status = EOperationStatus.Succeed;
+                    }
                 }
                 else
                 {
@@ -59,16 +82,12 @@ namespace YooAsset
                 DisposeRequest();
             }
         }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeRequest();
-        }
 
         private void CreateWebRequest()
         {
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
             DownloadHandlerBuffer handler = new DownloadHandlerBuffer();
+            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
+            _webRequest.timeout = _timeout;
             _webRequest.downloadHandler = handler;
             _webRequest.disposeDownloadHandlerOnDispose = true;
             _requestOperation = _webRequest.SendWebRequest();

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebFileRequestOperation.cs

@@ -5,12 +5,30 @@ namespace YooAsset
 {
     internal class UnityWebFileRequestOperation : UnityWebRequestOperation
     {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            Download,
+            Done,
+        }
+
         private UnityWebRequestAsyncOperation _requestOperation;
         private readonly string _fileSavePath;
+        private ESteps _steps = ESteps.None;
 
-        internal UnityWebFileRequestOperation(string url, string fileSavePath, int timeout = 60) : base(url, timeout)
+        /// <summary>
+        /// 响应的超时时间（单位：秒），在经过Timeout的秒数后尝试中止。
+        /// 注意：当Timeout设置为0时，不会应用超时。
+        /// 注意：设置的超时值可能应用于Android上的每个URL重定向，这可能会导致响应时间增加。
+        /// </summary>
+        private readonly int _timeout;
+
+
+        internal UnityWebFileRequestOperation(string url, string fileSavePath, int timeout) : base(url)
         {
             _fileSavePath = fileSavePath;
+            _timeout = timeout;
         }
         internal override void InternalStart()
         {
@@ -23,21 +41,17 @@ namespace YooAsset
 
             if (_steps == ESteps.CreateRequest)
             {
-                _latestDownloadBytes = 0;
-                _latestDownloadRealtime = Time.realtimeSinceStartup;
-
                 CreateWebRequest();
                 _steps = ESteps.Download;
             }
 
             if (_steps == ESteps.Download)
             {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
                 Progress = _requestOperation.progress;
                 if (_requestOperation.isDone == false)
-                {
-                    CheckRequestTimeout();
                     return;
-                }
 
                 if (CheckRequestResult())
                 {
@@ -54,17 +68,13 @@ namespace YooAsset
                 DisposeRequest();
             }
         }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeRequest();
-        }
 
         private void CreateWebRequest()
         {
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
             DownloadHandlerFile handler = new DownloadHandlerFile(_fileSavePath);
             handler.removeFileOnAbort = true;
+            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
+            _webRequest.timeout = _timeout;
             _webRequest.downloadHandler = handler;
             _webRequest.disposeDownloadHandlerOnDispose = true;
             _requestOperation = _webRequest.SendWebRequest();

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebRequestOperation.cs

@@ -1,6 +1,4 @@
 using System;
-using System.Collections;
-using System.Collections.Concurrent;
 using UnityEngine.Networking;
 using UnityEngine;
 
@@ -8,33 +6,50 @@ namespace YooAsset
 {
     internal abstract class UnityWebRequestOperation : AsyncOperationBase
     {
-        protected enum ESteps
-        {
-            None,
-            CreateRequest,
-            Download,
-            Done,
-        }
-
         protected UnityWebRequest _webRequest;
         protected readonly string _requestURL;
-        protected ESteps _steps = ESteps.None;
-
-        // 超时相关
-        protected readonly float _timeout;
-        protected ulong _latestDownloadBytes;
-        protected float _latestDownloadRealtime;
         private bool _isAbort = false;
 
+        /// <summary>
+        /// HTTP返回码
+        /// </summary>
+        public long HttpCode { private set; get; }
+
+        /// <summary>
+        /// 当前下载的字节数
+        /// </summary>
+        public long DownloadedBytes { protected set; get; }
+
+        /// <summary>
+        /// 当前下载进度（0f - 1f）
+        /// </summary>
+        public float DownloadProgress { protected set; get; }
+
+        /// <summary>
+        /// 请求的URL地址
+        /// </summary>
         public string URL
         {
             get { return _requestURL; }
         }
 
-        internal UnityWebRequestOperation(string url, int timeout)
+        internal UnityWebRequestOperation(string url)
         {
             _requestURL = url;
-            _timeout = timeout;
+        }
+        internal override void InternalAbort()
+        {
+            //TODO
+            // 1. 编辑器下停止运行游戏的时候主动终止下载任务
+            // 2. 真机上销毁包裹的时候主动终止下载任务
+            if (_isAbort == false)
+            {
+                if (_webRequest != null)
+                {
+                    _webRequest.Abort();
+                    _isAbort = true;
+                }
+            }
         }
 
         /// <summary>
@@ -44,39 +59,19 @@ namespace YooAsset
         {
             if (_webRequest != null)
             {
+                //注意：引擎底层会自动调用Abort方法
                 _webRequest.Dispose();
                 _webRequest = null;
             }
         }
 
-        /// <summary>
-        /// 检测超时
-        /// </summary>
-        protected void CheckRequestTimeout()
-        {
-            // 注意：在连续时间段内无新增下载数据及判定为超时
-            if (_isAbort == false)
-            {
-                if ( _latestDownloadBytes != _webRequest.downloadedBytes)
-                {
-                    _latestDownloadBytes = _webRequest.downloadedBytes;
-                    _latestDownloadRealtime = Time.realtimeSinceStartup;
-                }
-
-                float offset = Time.realtimeSinceStartup - _latestDownloadRealtime;
-                if (offset > _timeout)
-                {
-                    _webRequest.Abort();
-                    _isAbort = true;
-                }
-            }
-        }
-
         /// <summary>
         /// 检测请求结果
         /// </summary>
         protected bool CheckRequestResult()
         {
+            HttpCode = _webRequest.responseCode;
+
 #if UNITY_2020_3_OR_NEWER
             if (_webRequest.result != UnityWebRequest.Result.Success)
             {

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebTextRequestOperation.cs

@@ -5,7 +5,23 @@ namespace YooAsset
 {
     internal class UnityWebTextRequestOperation : UnityWebRequestOperation
     {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            Download,
+            Done,
+        }
+
         private UnityWebRequestAsyncOperation _requestOperation;
+        private ESteps _steps = ESteps.None;
+
+        /// <summary>
+        /// 响应的超时时间（单位：秒），在经过Timeout的秒数后尝试中止。
+        /// 注意：当Timeout设置为0时，不会应用超时。
+        /// 注意：设置的超时值可能应用于Android上的每个URL重定向，这可能会导致响应时间增加。
+        /// </summary>
+        private readonly int _timeout;
 
         /// <summary>
         /// 请求结果
@@ -13,8 +29,9 @@ namespace YooAsset
         public string Result { private set; get; }
 
 
-        internal UnityWebTextRequestOperation(string url, int timeout = 60) : base(url, timeout)
+        internal UnityWebTextRequestOperation(string url, int timeout) : base(url)
         {
+            _timeout = timeout;
         }
         internal override void InternalStart()
         {
@@ -27,27 +44,33 @@ namespace YooAsset
 
             if (_steps == ESteps.CreateRequest)
             {
-                _latestDownloadBytes = 0;
-                _latestDownloadRealtime = Time.realtimeSinceStartup;
-
                 CreateWebRequest();
                 _steps = ESteps.Download;
             }
 
             if (_steps == ESteps.Download)
             {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
                 Progress = _requestOperation.progress;
                 if (_requestOperation.isDone == false)
-                {
-                    CheckRequestTimeout();
                     return;
-                }
 
                 if (CheckRequestResult())
                 {
-                    _steps = ESteps.Done;
-                    Result = _webRequest.downloadHandler.text;
-                    Status = EOperationStatus.Succeed;
+                    var fileText = _webRequest.downloadHandler.text;
+                    if (string.IsNullOrEmpty(fileText))
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"URL : {_requestURL} Download handler text is null or empty !";
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Result = fileText;
+                        Status = EOperationStatus.Succeed;
+                    }
                 }
                 else
                 {
@@ -59,16 +82,12 @@ namespace YooAsset
                 DisposeRequest();
             }
         }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeRequest();
-        }
 
         private void CreateWebRequest()
         {
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
             DownloadHandlerBuffer handler = new DownloadHandlerBuffer();
+            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
+            _webRequest.timeout = _timeout;
             _webRequest.downloadHandler = handler;
             _webRequest.disposeDownloadHandlerOnDispose = true;
             _requestOperation = _webRequest.SendWebRequest();

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/CatalogTools.cs

@@ -7,6 +7,114 @@ namespace YooAsset
 {
     internal static class CatalogTools
     {
+#if UNITY_EDITOR
+        /// <summary>
+        /// 生成包裹的内置资源目录文件
+        /// 说明：根据指定目录下的文件生成清单文件。
+        /// </summary>
+        public static bool CreateCatalogFile(IManifestRestoreServices services, string packageName, string packageDirectory)
+        {
+            // 获取资源清单版本
+            string packageVersion;
+            {
+                string versionFileName = YooAssetSettingsData.GetPackageVersionFileName(packageName);
+                string versionFilePath = $"{packageDirectory}/{versionFileName}";
+                if (File.Exists(versionFilePath) == false)
+                {
+                    Debug.LogError($"Can not found package version file : {versionFilePath}");
+                    return false;
+                }
+
+                packageVersion = FileUtility.ReadAllText(versionFilePath);
+            }
+
+            // 加载资源清单文件
+            PackageManifest packageManifest;
+            {
+                string manifestFileName = YooAssetSettingsData.GetManifestBinaryFileName(packageName, packageVersion);
+                string manifestFilePath = $"{packageDirectory}/{manifestFileName}";
+                if (File.Exists(manifestFilePath) == false)
+                {
+                    Debug.LogError($"Can not found package manifest file : {manifestFilePath}");
+                    return false;
+                }
+
+                var binaryData = FileUtility.ReadAllBytes(manifestFilePath);
+                packageManifest = ManifestTools.DeserializeFromBinary(binaryData, services);
+            }
+
+            // 获取文件名映射关系
+            Dictionary<string, string> fileMapping = new Dictionary<string, string>();
+            {
+                foreach (var packageBundle in packageManifest.BundleList)
+                {
+                    fileMapping.Add(packageBundle.FileName, packageBundle.BundleGUID);
+                }
+            }
+
+            // 创建内置清单实例
+            var buildinFileCatalog = new DefaultBuildinFileCatalog();
+            buildinFileCatalog.FileVersion = CatalogDefine.FileVersion;
+            buildinFileCatalog.PackageName = packageName;
+            buildinFileCatalog.PackageVersion = packageVersion;
+
+            // 创建白名单查询集合
+            HashSet<string> whiteFileList = new HashSet<string>
+            {
+                "link.xml",
+                "buildlogtep.json",
+                $"{packageName}.version",
+                $"{packageName}_{packageVersion}.bytes",
+                $"{packageName}_{packageVersion}.hash",
+                $"{packageName}_{packageVersion}.json",
+                $"{packageName}_{packageVersion}.report",
+                DefaultBuildinFileSystemDefine.BuildinCatalogJsonFileName,
+                DefaultBuildinFileSystemDefine.BuildinCatalogBinaryFileName
+            };
+
+            // 记录所有内置资源文件
+            DirectoryInfo rootDirectory = new DirectoryInfo(packageDirectory);
+            FileInfo[] fileInfos = rootDirectory.GetFiles();
+            foreach (var fileInfo in fileInfos)
+            {
+                if (fileInfo.Extension == ".meta")
+                    continue;
+
+                if (whiteFileList.Contains(fileInfo.Name))
+                    continue;
+
+                string fileName = fileInfo.Name;
+                if (fileMapping.TryGetValue(fileName, out string bundleGUID))
+                {
+                    var wrapper = new DefaultBuildinFileCatalog.FileWrapper();
+                    wrapper.BundleGUID = bundleGUID;
+                    wrapper.FileName = fileName;
+                    buildinFileCatalog.Wrappers.Add(wrapper);
+                }
+                else
+                {
+                    Debug.LogWarning($"Failed mapping file : {fileName}");
+                }
+            }
+
+            // 创建输出文件
+            string jsonFilePath = $"{packageDirectory}/{DefaultBuildinFileSystemDefine.BuildinCatalogJsonFileName}";
+            if (File.Exists(jsonFilePath))
+                File.Delete(jsonFilePath);
+            SerializeToJson(jsonFilePath, buildinFileCatalog);
+
+            // 创建输出文件
+            string binaryFilePath = $"{packageDirectory}/{DefaultBuildinFileSystemDefine.BuildinCatalogBinaryFileName}";
+            if (File.Exists(binaryFilePath))
+                File.Delete(binaryFilePath);
+            SerializeToBinary(binaryFilePath, buildinFileCatalog);
+
+            UnityEditor.AssetDatabase.Refresh();
+            Debug.Log($"Succeed to save catalog file : {binaryFilePath}");
+            return true;
+        }
+#endif
+
         /// <summary>
         /// 序列化（JSON文件）
         /// </summary>

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystem.cs

@@ -92,7 +92,7 @@ namespace YooAsset
         /// <summary>
         /// 自定义参数：资源清单服务类
         /// </summary>
-        public IManifestServices ManifestServices { private set; get; }
+        public IManifestRestoreServices ManifestServices { private set; get; }
 
         /// <summary>
         /// 自定义参数：拷贝内置文件服务类
@@ -125,7 +125,7 @@ namespace YooAsset
         }
         public virtual FSDownloadFileOperation DownloadFileAsync(PackageBundle bundle, DownloadFileOptions options)
         {
-            // 注意：业务层的解压下载器会依赖内置文件系统的下载方法
+            // 注意：业务层的解压器会依赖该方法
             options.ImportFilePath = GetBuildinFileLoadPath(bundle);
             return _unpackFileSystem.DownloadFileAsync(bundle, options);
         }
@@ -186,7 +186,7 @@ namespace YooAsset
             }
             else if (name == FileSystemParametersDefine.MANIFEST_SERVICES)
             {
-                ManifestServices = (IManifestServices)value;
+                ManifestServices = (IManifestRestoreServices)value;
             }
             else if (name == FileSystemParametersDefine.COPY_LOCAL_FILE_SERVICES)
             {

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystemBuild.cs

@@ -1,155 +0,0 @@
-#if UNITY_EDITOR
-using System.Collections.Generic;
-using System.IO;
-using UnityEngine;
-
-namespace YooAsset
-{
-    public class DefaultBuildinFileSystemBuild : UnityEditor.Build.IPreprocessBuildWithReport
-    {
-        public int callbackOrder { get { return 0; } }
-
-        /// <summary>
-        /// 在构建应用程序前自动生成内置资源目录文件。
-        /// 原理：搜索StreamingAssets目录下的所有资源文件，将这些文件信息写入文件，然后在运行时做查询用途。
-        /// </summary>
-        public void OnPreprocessBuild(UnityEditor.Build.Reporting.BuildReport report)
-        {
-            YooLogger.Log("Begin to create catalog file !");
-
-            string rootPath = YooAssetSettingsData.GetYooDefaultBuildinRoot();
-            DirectoryInfo rootDirectory = new DirectoryInfo(rootPath);
-            if (rootDirectory.Exists == false)
-            {
-                Debug.LogWarning($"Can not found StreamingAssets root directory : {rootPath}");
-                return;
-            }
-
-            // 搜索所有Package目录
-            DirectoryInfo[] subDirectories = rootDirectory.GetDirectories();
-            foreach (var subDirectory in subDirectories)
-            {
-                string packageName = subDirectory.Name;
-                string pacakgeDirectory = subDirectory.FullName;
-                try
-                {
-                    bool result = CreateBuildinCatalogFile(null, packageName, pacakgeDirectory);
-                    if (result == false)
-                    {
-                        Debug.LogError($"Create package {packageName} catalog file failed ! See the detail error in console !");
-                    }
-                }
-                catch (System.Exception ex)
-                {
-                    Debug.LogError($"Create package {packageName} catalog file failed ! {ex.Message}");
-                }
-            }
-        }
-
-        /// <summary>
-        /// 生成包裹的内置资源目录文件
-        /// </summary>
-        public static bool CreateBuildinCatalogFile(IManifestServices services, string packageName, string pacakgeDirectory)
-        {
-            // 获取资源清单版本
-            string packageVersion;
-            {
-                string versionFileName = YooAssetSettingsData.GetPackageVersionFileName(packageName);
-                string versionFilePath = $"{pacakgeDirectory}/{versionFileName}";
-                if (File.Exists(versionFilePath) == false)
-                {
-                    Debug.LogError($"Can not found package version file : {versionFilePath}");
-                    return false;
-                }
-
-                packageVersion = FileUtility.ReadAllText(versionFilePath);
-            }
-
-            // 加载资源清单文件
-            PackageManifest packageManifest;
-            {
-                string manifestFileName = YooAssetSettingsData.GetManifestBinaryFileName(packageName, packageVersion);
-                string manifestFilePath = $"{pacakgeDirectory}/{manifestFileName}";
-                if (File.Exists(manifestFilePath) == false)
-                {
-                    Debug.LogError($"Can not found package manifest file : {manifestFilePath}");
-                    return false;
-                }
-
-                var binaryData = FileUtility.ReadAllBytes(manifestFilePath);
-                packageManifest = ManifestTools.DeserializeFromBinary(binaryData, services);
-            }
-
-            // 获取文件名映射关系
-            Dictionary<string, string> fileMapping = new Dictionary<string, string>();
-            {
-                foreach (var packageBundle in packageManifest.BundleList)
-                {
-                    fileMapping.Add(packageBundle.FileName, packageBundle.BundleGUID);
-                }
-            }
-
-            // 创建内置清单实例
-            var buildinFileCatalog = new DefaultBuildinFileCatalog();
-            buildinFileCatalog.FileVersion = CatalogDefine.FileVersion;
-            buildinFileCatalog.PackageName = packageName;
-            buildinFileCatalog.PackageVersion = packageVersion;
-
-            // 创建白名单查询集合
-            HashSet<string> whiteFileList = new HashSet<string>
-            {
-                "link.xml",
-                "buildlogtep.json",
-                $"{packageName}.version",
-                $"{packageName}_{packageVersion}.bytes",
-                $"{packageName}_{packageVersion}.hash",
-                $"{packageName}_{packageVersion}.json",
-                $"{packageName}_{packageVersion}.report",
-                DefaultBuildinFileSystemDefine.BuildinCatalogJsonFileName,
-                DefaultBuildinFileSystemDefine.BuildinCatalogBinaryFileName
-            };
-
-            // 记录所有内置资源文件
-            DirectoryInfo rootDirectory = new DirectoryInfo(pacakgeDirectory);
-            FileInfo[] fileInfos = rootDirectory.GetFiles();
-            foreach (var fileInfo in fileInfos)
-            {
-                if (fileInfo.Extension == ".meta")
-                    continue;
-
-                if (whiteFileList.Contains(fileInfo.Name))
-                    continue;
-
-                string fileName = fileInfo.Name;
-                if (fileMapping.TryGetValue(fileName, out string bundleGUID))
-                {
-                    var wrapper = new DefaultBuildinFileCatalog.FileWrapper();
-                    wrapper.BundleGUID = bundleGUID;
-                    wrapper.FileName = fileName;
-                    buildinFileCatalog.Wrappers.Add(wrapper);
-                }
-                else
-                {
-                    Debug.LogWarning($"Failed mapping file : {fileName}");
-                }
-            }
-
-            // 创建输出文件
-            string jsonFilePath = $"{pacakgeDirectory}/{DefaultBuildinFileSystemDefine.BuildinCatalogJsonFileName}";
-            if (File.Exists(jsonFilePath))
-                File.Delete(jsonFilePath);
-            CatalogTools.SerializeToJson(jsonFilePath, buildinFileCatalog);
-
-            // 创建输出文件
-            string binaryFilePath = $"{pacakgeDirectory}/{DefaultBuildinFileSystemDefine.BuildinCatalogBinaryFileName}";
-            if (File.Exists(binaryFilePath))
-                File.Delete(binaryFilePath);
-            CatalogTools.SerializeToBinary(binaryFilePath, buildinFileCatalog);
-
-            UnityEditor.AssetDatabase.Refresh();
-            Debug.Log($"Succeed to save buildin file catalog : {binaryFilePath}");
-            return true;
-        }
-    }
-}
-#endif

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/DBFSInitializeOperation.cs

@@ -17,7 +17,7 @@ namespace YooAsset
         private readonly DefaultBuildinFileSystem _fileSystem;
         private CopyBuildinPackageManifestOperation _copyBuildinPackageManifestOp;
         private FSInitializeFileSystemOperation _initUnpackFIleSystemOp;
-        private LoadBuildinCatalogFileOperation _loadCatalogFileOp;
+        private LoadBuildinCatalogFileOperation _loadBuildinCatalogFileOp;
         private ESteps _steps = ESteps.None;
 
         internal DBFSInitializeOperation(DefaultBuildinFileSystem fileSystem)
@@ -103,34 +103,18 @@ namespace YooAsset
 
             if (_steps == ESteps.LoadCatalogFile)
             {
-                if (_loadCatalogFileOp == null)
+                if (_loadBuildinCatalogFileOp == null)
                 {
-#if UNITY_EDITOR
-                    /*
-                    // 兼容性初始化
-                    // 说明：内置文件系统在编辑器下运行时需要动态生成
-                    string packageRoot = _fileSystem.FileRoot;
-                    bool result = DefaultBuildinFileSystemBuild.CreateBuildinCatalogFile(_fileSystem.ManifestServices, _fileSystem.PackageName, packageRoot);
-                    if (result == false)
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"Create package catalog file failed ! See the detail error in console !";
-                        return;
-                    }
-                    */
-#endif
-
-                    _loadCatalogFileOp = new LoadBuildinCatalogFileOperation(_fileSystem);
-                    _loadCatalogFileOp.StartOperation();
-                    AddChildOperation(_loadCatalogFileOp);
+                    _loadBuildinCatalogFileOp = new LoadBuildinCatalogFileOperation(_fileSystem);
+                    _loadBuildinCatalogFileOp.StartOperation();
+                    AddChildOperation(_loadBuildinCatalogFileOp);
                 }
 
-                _loadCatalogFileOp.UpdateOperation();
-                if (_loadCatalogFileOp.IsDone == false)
+                _loadBuildinCatalogFileOp.UpdateOperation();
+                if (_loadBuildinCatalogFileOp.IsDone == false)
                     return;
 
-                if (_loadCatalogFileOp.Status == EOperationStatus.Succeed)
+                if (_loadBuildinCatalogFileOp.Status == EOperationStatus.Succeed)
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Succeed;
@@ -139,7 +123,7 @@ namespace YooAsset
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
-                    Error = _loadCatalogFileOp.Error;
+                    Error = _loadBuildinCatalogFileOp.Error;
                 }
             }
         }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/DBFSLoadBundleOperation.cs

@@ -104,27 +104,28 @@ namespace YooAsset
                     }
                 }
 
-                if (_assetBundle != null)
+                if (_assetBundle == null)
                 {
-                    _steps = ESteps.Done;
-                    Result = new AssetBundleResult(_fileSystem, _bundle, _assetBundle, _managedStream);
-                    Status = EOperationStatus.Succeed;
-                    return;
-                }
-
-                if (_bundle.Encrypted)
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                    Error = $"Failed to load encrypted buildin asset bundle file : {_bundle.BundleName}";
-                    YooLogger.Error(Error);
+                    if (_bundle.Encrypted)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"Failed to load encrypted buildin asset bundle file : {_bundle.BundleName}";
+                        YooLogger.Error(Error);
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"Failed to load buildin asset bundle file : {_bundle.BundleName}";
+                        YooLogger.Error(Error);
+                    }
                 }
                 else
                 {
                     _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                    Error = $"Failed to load buildin asset bundle file : {_bundle.BundleName}";
-                    YooLogger.Error(Error);
+                    Result = new AssetBundleResult(_fileSystem, _bundle, _assetBundle, _managedStream);
+                    Status = EOperationStatus.Succeed;
                 }
             }
         }
@@ -176,13 +177,15 @@ namespace YooAsset
 
             if (_steps == ESteps.LoadBuildinRawBundle)
             {
+                string filePath = _fileSystem.GetBuildinFileLoadPath(_bundle);
+
 #if UNITY_ANDROID
                 //TODO : 安卓平台内置文件属于APK压缩包内的文件。
                 _steps = ESteps.Done;
-                Result = new RawBundleResult(_fileSystem, _bundle);
-                Status = EOperationStatus.Succeed;
+                Status = EOperationStatus.Failed;
+                Error = $"Can not load android buildin raw bundle file : {filePath}";
+                YooLogger.Error(Error);
 #else
-                string filePath = _fileSystem.GetBuildinFileLoadPath(_bundle);
                 if (File.Exists(filePath))
                 {
                     _steps = ESteps.Done;

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/CopyBuildinPackageManifestOperation.cs

@@ -20,8 +20,8 @@ namespace YooAsset
 
         private readonly DefaultBuildinFileSystem _fileSystem;
         private RequestBuildinPackageVersionOperation _requestBuildinPackageVersionOp;
-        private UnityWebFileRequestOperation _hashFileRequestOp;
-        private UnityWebFileRequestOperation _manifestFileRequestOp;
+        private UnityWebFileRequestOperation _hashWebFileRequestOp;
+        private UnityWebFileRequestOperation _manifestWebFileRequestOp;
         private string _buildinPackageVersion;
         private ESteps _steps = ESteps.None;
 
@@ -78,21 +78,21 @@ namespace YooAsset
 
             if (_steps == ESteps.UnpackHashFile)
             {
-                if (_hashFileRequestOp == null)
+                if (_hashWebFileRequestOp == null)
                 {
                     string sourcePath = _fileSystem.GetBuildinPackageHashFilePath(_buildinPackageVersion);
                     string destPath = GetCopyPackageHashDestPath(_buildinPackageVersion);
                     string url = DownloadSystemHelper.ConvertToWWWPath(sourcePath);
-                    _hashFileRequestOp = new UnityWebFileRequestOperation(url, destPath);
-                    _hashFileRequestOp.StartOperation();
-                    AddChildOperation(_hashFileRequestOp);
+                    _hashWebFileRequestOp = new UnityWebFileRequestOperation(url, destPath, 60);
+                    _hashWebFileRequestOp.StartOperation();
+                    AddChildOperation(_hashWebFileRequestOp);
                 }
 
-                _hashFileRequestOp.UpdateOperation();
-                if (_hashFileRequestOp.IsDone == false)
+                _hashWebFileRequestOp.UpdateOperation();
+                if (_hashWebFileRequestOp.IsDone == false)
                     return;
 
-                if (_hashFileRequestOp.Status == EOperationStatus.Succeed)
+                if (_hashWebFileRequestOp.Status == EOperationStatus.Succeed)
                 {
                     _steps = ESteps.CheckManifestFile;
                 }
@@ -100,7 +100,7 @@ namespace YooAsset
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
-                    Error = _hashFileRequestOp.Error;
+                    Error = _hashWebFileRequestOp.Error;
                 }
             }
 
@@ -119,21 +119,21 @@ namespace YooAsset
 
             if (_steps == ESteps.UnpackManifestFile)
             {
-                if (_manifestFileRequestOp == null)
+                if (_manifestWebFileRequestOp == null)
                 {
                     string sourcePath = _fileSystem.GetBuildinPackageManifestFilePath(_buildinPackageVersion);
                     string destPath = GetCopyPackageManifestDestPath(_buildinPackageVersion);
                     string url = DownloadSystemHelper.ConvertToWWWPath(sourcePath);
-                    _manifestFileRequestOp = new UnityWebFileRequestOperation(url, destPath);
-                    _manifestFileRequestOp.StartOperation();
-                    AddChildOperation(_manifestFileRequestOp);
+                    _manifestWebFileRequestOp = new UnityWebFileRequestOperation(url, destPath, 60);
+                    _manifestWebFileRequestOp.StartOperation();
+                    AddChildOperation(_manifestWebFileRequestOp);
                 }
 
-                _manifestFileRequestOp.UpdateOperation();
-                if (_manifestFileRequestOp.IsDone == false)
+                _manifestWebFileRequestOp.UpdateOperation();
+                if (_manifestWebFileRequestOp.IsDone == false)
                     return;
 
-                if (_manifestFileRequestOp.Status == EOperationStatus.Succeed)
+                if (_manifestWebFileRequestOp.Status == EOperationStatus.Succeed)
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Succeed;
@@ -142,7 +142,7 @@ namespace YooAsset
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
-                    Error = _manifestFileRequestOp.Error;
+                    Error = _manifestWebFileRequestOp.Error;
                 }
             }
         }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/LoadBuildinCatalogFileOperation.cs

@@ -35,7 +35,7 @@ namespace YooAsset
                 {
                     string filePath = _fileSystem.GetCatalogBinaryFileLoadPath();
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webDataRequestOp = new UnityWebDataRequestOperation(url);
+                    _webDataRequestOp = new UnityWebDataRequestOperation(url, 60);
                     _webDataRequestOp.StartOperation();
                     AddChildOperation(_webDataRequestOp);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/LoadBuildinPackageManifestOperation.cs

@@ -46,7 +46,7 @@ namespace YooAsset
                 {
                     string filePath = _fileSystem.GetBuildinPackageManifestFilePath(_packageVersion);
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webDataRequestOp = new UnityWebDataRequestOperation(url);
+                    _webDataRequestOp = new UnityWebDataRequestOperation(url, 60);
                     _webDataRequestOp.StartOperation();
                     AddChildOperation(_webDataRequestOp);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/RequestBuildinPackageHashOperation.cs

@@ -41,7 +41,7 @@ namespace YooAsset
                 {
                     string filePath = _fileSystem.GetBuildinPackageHashFilePath(_packageVersion);
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webTextRequestOp = new UnityWebTextRequestOperation(url);
+                    _webTextRequestOp = new UnityWebTextRequestOperation(url, 60);
                     _webTextRequestOp.StartOperation();
                     AddChildOperation(_webTextRequestOp);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/RequestBuildinPackageVersionOperation.cs

@@ -39,7 +39,7 @@ namespace YooAsset
                 {
                     string filePath = _fileSystem.GetBuildinPackageVersionFilePath();
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webTextRequestOp = new UnityWebTextRequestOperation(url);
+                    _webTextRequestOp = new UnityWebTextRequestOperation(url, 60);
                     _webTextRequestOp.StartOperation();
                     AddChildOperation(_webTextRequestOp);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs

@@ -75,6 +75,11 @@ namespace YooAsset
         /// </summary>
         public bool AppendFileExtension { private set; get; } = false;
 
+        /// <summary>
+        /// 自定义参数：禁用边玩边下机制
+        /// </summary>
+        public bool DisableOnDemandDownload { private set; get; } = false;
+
         /// <summary>
         /// 自定义参数：最大并发连接数
         /// </summary>
@@ -103,7 +108,7 @@ namespace YooAsset
         /// <summary>
         /// 自定义参数：资源清单服务类
         /// </summary>
-        public IManifestServices ManifestServices { private set; get; }
+        public IManifestRestoreServices ManifestServices { private set; get; }
 
         /// <summary>
         /// 自定义参数：拷贝内置文件服务类
@@ -166,12 +171,23 @@ namespace YooAsset
         }
         public virtual FSDownloadFileOperation DownloadFileAsync(PackageBundle bundle, DownloadFileOptions options)
         {
-            var downloader = DownloadCenter.DownloadFileAsync(bundle, options);
-            downloader.Reference(); //增加下载器的引用计数
+            // 获取下载地址
+            if (string.IsNullOrEmpty(options.ImportFilePath))
+            {
+                // 注意：如果是解压文件系统类，这里会返回本地内置文件的下载路径
+                string mainURL = RemoteServices.GetRemoteMainURL(bundle.FileName);
+                string fallbackURL = RemoteServices.GetRemoteFallbackURL(bundle.FileName);
+                options.SetURL(mainURL, fallbackURL);
+            }
+            else
+            {
+                // 注意：把本地导入文件路径转换为下载器请求地址
+                string mainURL = DownloadSystemHelper.ConvertToWWWPath(options.ImportFilePath);
+                options.SetURL(mainURL, mainURL);
+            }
 
-            // 注意：将下载器进行包裹，可以避免父类任务终止的时候，连带子任务里的下载器也一起被终止！
-            var wrapper = new DownloadFileWrapper(downloader);
-            return wrapper;
+            var downloader = new DownloadPackageBundleOperation(this, bundle, options);
+            return downloader;
         }
         public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
         {
@@ -211,6 +227,10 @@ namespace YooAsset
             {
                 AppendFileExtension = Convert.ToBoolean(value);
             }
+            else if (name == FileSystemParametersDefine.DISABLE_ONDEMAND_DOWNLOAD)
+            {
+                DisableOnDemandDownload = Convert.ToBoolean(value);
+            }
             else if (name == FileSystemParametersDefine.DOWNLOAD_MAX_CONCURRENCY)
             {
                 DownloadMaxConcurrency = Convert.ToInt32(value);
@@ -233,7 +253,7 @@ namespace YooAsset
             }
             else if (name == FileSystemParametersDefine.MANIFEST_SERVICES)
             {
-                ManifestServices = (IManifestServices)value;
+                ManifestServices = (IManifestRestoreServices)value;
             }
             else if (name == FileSystemParametersDefine.COPY_LOCAL_FILE_SERVICES)
             {

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSInitializeOperation.cs

@@ -111,7 +111,7 @@ namespace YooAsset
                 if (_verifyCacheFilesOp.Status == EOperationStatus.Succeed)
                 {
                     _steps = ESteps.CreateDownloadCenter;
-                    YooLogger.Log($"Package '{_fileSystem.PackageName}' cached files count : {_fileSystem.FileCount}");
+                    YooLogger.Log($"Package '{_fileSystem.PackageName}' '{_fileSystem.GetType().Name}' cached files count : {_fileSystem.FileCount}");
                 }
                 else
                 {

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs

@@ -49,16 +49,25 @@ namespace YooAsset
                 }
                 else
                 {
-                    _steps = ESteps.DownloadFile;
+                    if (_fileSystem.DisableOnDemandDownload)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"The bundle not cached : {_bundle.BundleName}";
+                        YooLogger.Warning(Error);
+                    }
+                    else
+                    {
+                        _steps = ESteps.DownloadFile;
+                    }
                 }
             }
 
             if (_steps == ESteps.DownloadFile)
             {
-                // 注意：边玩边下下载器引用计数没有Release
                 if (_downloadFileOp == null)
                 {
-                    DownloadFileOptions options = new DownloadFileOptions(int.MaxValue, 60);
+                    DownloadFileOptions options = new DownloadFileOptions(int.MaxValue);
                     _downloadFileOp = _fileSystem.DownloadFileAsync(_bundle, options);
                     _downloadFileOp.StartOperation();
                     AddChildOperation(_downloadFileOp);
@@ -303,10 +312,9 @@ namespace YooAsset
 
             if (_steps == ESteps.DownloadFile)
             {
-                // 注意：边玩边下下载器引用计数没有Release
                 if (_downloadFileOp == null)
                 {
-                    DownloadFileOptions options = new DownloadFileOptions(int.MaxValue, 60);
+                    DownloadFileOptions options = new DownloadFileOptions(int.MaxValue);
                     _downloadFileOp = _fileSystem.DownloadFileAsync(_bundle, options);
                     _downloadFileOp.StartOperation();
                     AddChildOperation(_downloadFileOp);

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/DownloadCenterOperation.cs

@@ -6,8 +6,8 @@ namespace YooAsset
     internal class DownloadCenterOperation : AsyncOperationBase
     {
         private readonly DefaultCacheFileSystem _fileSystem;
-        protected readonly Dictionary<string, DefaultDownloadFileOperation> _downloaders = new Dictionary<string, DefaultDownloadFileOperation>(1000);
-        protected readonly List<string> _removeDownloadList = new List<string>(1000);
+        protected readonly Dictionary<string, UnityDownloadFileOperation> _downloaders = new Dictionary<string, UnityDownloadFileOperation>(1000);
+        protected readonly List<string> _removeList = new List<string>(1000);
 
         public DownloadCenterOperation(DefaultCacheFileSystem fileSystem)
         {
@@ -19,31 +19,34 @@ namespace YooAsset
         internal override void InternalUpdate()
         {
             // 获取可移除的下载器集合
-            _removeDownloadList.Clear();
+            _removeList.Clear();
             foreach (var valuePair in _downloaders)
             {
                 var downloader = valuePair.Value;
                 downloader.UpdateOperation();
+                if (downloader.IsDone)
+                {
+                    _removeList.Add(valuePair.Key);
+                    continue;
+                }
 
                 // 注意：主动终止引用计数为零的下载任务
                 if (downloader.RefCount <= 0)
                 {
-                    _removeDownloadList.Add(valuePair.Key);
+                    _removeList.Add(valuePair.Key);
                     downloader.AbortOperation();
                     continue;
                 }
-
-                if (downloader.IsDone)
-                {
-                    _removeDownloadList.Add(valuePair.Key);
-                    continue;
-                }
             }
 
             // 移除下载器
-            foreach (var key in _removeDownloadList)
+            foreach (var key in _removeList)
             {
-                _downloaders.Remove(key);
+                if (_downloaders.TryGetValue(key, out var downloader))
+                {
+                    Childs.Remove(downloader);
+                    _downloaders.Remove(key);
+                }
             }
 
             // 最大并发数检测
@@ -74,34 +77,21 @@ namespace YooAsset
         /// <summary>
         /// 创建下载任务
         /// </summary>
-        public FSDownloadFileOperation DownloadFileAsync(PackageBundle bundle, DownloadFileOptions options)
+        public UnityDownloadFileOperation DownloadFileAsync(PackageBundle bundle, string url)
         {
             // 查询旧的下载器
             if (_downloaders.TryGetValue(bundle.BundleGUID, out var oldDownloader))
             {
+                oldDownloader.Reference();
                 return oldDownloader;
             }
 
-            // 获取下载地址
-            if (string.IsNullOrEmpty(options.ImportFilePath))
-            {
-                // 注意：如果是解压文件系统类，这里会返回本地内置文件的下载路径
-                options.MainURL = _fileSystem.RemoteServices.GetRemoteMainURL(bundle.FileName);
-                options.FallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(bundle.FileName);
-            }
-            else
-            {
-                // 注意：把本地导入文件路径转换为下载器请求地址
-                options.MainURL = DownloadSystemHelper.ConvertToWWWPath(options.ImportFilePath);
-                options.FallbackURL = options.MainURL;
-            }
-
             // 创建新的下载器
-            DefaultDownloadFileOperation newDownloader;
-            bool isRequestLocalFile = DownloadSystemHelper.IsRequestLocalFile(options.MainURL);
+            UnityDownloadFileOperation newDownloader;
+            bool isRequestLocalFile = DownloadSystemHelper.IsRequestLocalFile(url);
             if (isRequestLocalFile)
             {
-                newDownloader = new DownloadLocalFileOperation(_fileSystem, bundle, options);
+                newDownloader = new UnityDownloadLocalFileOperation(_fileSystem, bundle, url);
                 AddChildOperation(newDownloader);
                 _downloaders.Add(bundle.BundleGUID, newDownloader);
             }
@@ -109,17 +99,19 @@ namespace YooAsset
             {
                 if (bundle.FileSize >= _fileSystem.ResumeDownloadMinimumSize)
                 {
-                    newDownloader = new DownloadResumeFileOperation(_fileSystem, bundle, options);
+                    newDownloader = new UnityDownloadResumeFileOperation(_fileSystem, bundle, url);
                     AddChildOperation(newDownloader);
                     _downloaders.Add(bundle.BundleGUID, newDownloader);
                 }
                 else
                 {
-                    newDownloader = new DownloadNormalFileOperation(_fileSystem, bundle, options);
+                    newDownloader = new UnityDownloadNormalFileOperation(_fileSystem, bundle, url);
                     AddChildOperation(newDownloader);
                     _downloaders.Add(bundle.BundleGUID, newDownloader);
                 }
             }
+
+            newDownloader.Reference();
             return newDownloader;
         }
 

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/DownloadHandlerFileRange.cs

@@ -1,87 +0,0 @@
-using System;
-using System.IO;
-using UnityEngine;
-using UnityEngine.Networking;
-
-namespace YooAsset
-{
-    /// <summary>
-    /// 支持Unity2018版本的断点续传下载器
-    /// </summary>
-    internal class DownloadHandlerFileRange : DownloadHandlerScript
-    {
-        private string _fileSavePath;
-        private long _fileTotalSize;
-        private UnityWebRequest _webRequest;
-        private FileStream _fileStream;
-
-        private long _localFileSize = 0;
-        private long _curFileSize = 0;
-
-
-        public DownloadHandlerFileRange(string fileSavePath, long fileTotalSize, UnityWebRequest webRequest) : base(new byte[1024 * 1024])
-        {
-            _fileSavePath = fileSavePath;
-            _fileTotalSize = fileTotalSize;
-            _webRequest = webRequest;
-
-            if (File.Exists(fileSavePath))
-            {
-                FileInfo fileInfo = new FileInfo(fileSavePath);
-                _localFileSize = fileInfo.Length;
-            }
-
-            _fileStream = new FileStream(_fileSavePath, FileMode.Append, FileAccess.Write);
-            _curFileSize = _localFileSize;
-        }
-        protected override bool ReceiveData(byte[] data, int dataLength)
-        {
-            if (data == null || dataLength == 0 || _webRequest.responseCode >= 400)
-                return false;
-
-            if (_fileStream == null)
-                return false;
-
-            _fileStream.Write(data, 0, dataLength);
-            _curFileSize += dataLength;
-            return true;
-        }
-
-        /// <summary>
-        /// UnityWebRequest.downloadHandler.data
-        /// </summary>
-        protected override byte[] GetData()
-        {
-            return null;
-        }
-
-        /// <summary>
-        /// UnityWebRequest.downloadHandler.text
-        /// </summary>
-        protected override string GetText()
-        {
-            return null;
-        }
-
-        /// <summary>
-        /// UnityWebRequest.downloadProgress
-        /// </summary>
-        protected override float GetProgress()
-        {
-            return _fileTotalSize == 0 ? 0 : ((float)_curFileSize) / _fileTotalSize;
-        }
-
-        /// <summary>
-        /// 释放下载句柄
-        /// </summary>
-        public void Cleanup()
-        {
-            if (_fileStream != null)
-            {
-                _fileStream.Flush();
-                _fileStream.Dispose();
-                _fileStream = null;
-            }
-        }
-    }
-}

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/DownloadNormalFileOperation.cs

@@ -1,194 +0,0 @@
-using System.IO;
-using UnityEngine;
-using UnityEngine.Networking;
-
-namespace YooAsset
-{
-    internal sealed class DownloadNormalFileOperation : DefaultDownloadFileOperation
-    {
-        private readonly DefaultCacheFileSystem _fileSystem;
-        private VerifyTempFileOperation _verifyOperation;
-        private string _tempFilePath;
-        private ESteps _steps = ESteps.None;
-
-        internal DownloadNormalFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
-        {
-            _fileSystem = fileSystem;
-        }
-        internal override void InternalStart()
-        {
-            _tempFilePath = _fileSystem.GetTempFilePath(Bundle);
-            _steps = ESteps.CheckExists;
-        }
-        internal override void InternalUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            // 检测文件是否存在
-            if (_steps == ESteps.CheckExists)
-            {
-                if (_fileSystem.Exists(Bundle))
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Succeed;
-                }
-                else
-                {
-                    _steps = ESteps.CreateRequest;
-                }
-            }
-
-            // 创建下载器
-            if (_steps == ESteps.CreateRequest)
-            {
-                FileUtility.CreateFileDirectory(_tempFilePath);
-
-                // 删除临时文件
-                if (File.Exists(_tempFilePath))
-                    File.Delete(_tempFilePath);
-
-                // 获取请求地址
-                _requestURL = GetRequestURL();
-
-                // 重置请求
-                ResetRequestFiled();
-
-                // 创建下载器
-                CreateWebRequest();
-
-                _steps = ESteps.CheckRequest;
-            }
-
-            // 检测下载结果
-            if (_steps == ESteps.CheckRequest)
-            {
-                DownloadProgress = _webRequest.downloadProgress;
-                DownloadedBytes = (long)_webRequest.downloadedBytes;
-                Progress = DownloadProgress;
-                if (_webRequest.isDone == false)
-                {
-                    CheckRequestTimeout();
-                    return;
-                }
-
-                // 检查网络错误
-                if (CheckRequestResult())
-                    _steps = ESteps.VerifyTempFile;
-                else
-                    _steps = ESteps.TryAgain;
-
-                // 注意：最终释放请求器
-                DisposeWebRequest();
-            }
-
-            // 验证下载文件
-            if (_steps == ESteps.VerifyTempFile)
-            {
-                var element = new TempFileElement(_tempFilePath, Bundle.FileCRC, Bundle.FileSize);
-                _verifyOperation = new VerifyTempFileOperation(element);
-                _verifyOperation.StartOperation();
-                AddChildOperation(_verifyOperation);
-                _steps = ESteps.CheckVerifyTempFile;
-            }
-
-            // 等待验证完成
-            if (_steps == ESteps.CheckVerifyTempFile)
-            {
-                if (IsWaitForAsyncComplete)
-                    _verifyOperation.WaitForAsyncComplete();
-
-                _verifyOperation.UpdateOperation();
-                if (_verifyOperation.IsDone == false)
-                    return;
-
-                if (_verifyOperation.Status == EOperationStatus.Succeed)
-                {
-                    if (_fileSystem.WriteCacheBundleFile(Bundle, _tempFilePath))
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Succeed;
-                    }
-                    else
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"{_fileSystem.GetType().FullName} failed to write file !";
-                        YooLogger.Error(Error);
-                    }
-                }
-                else
-                {
-                    _steps = ESteps.TryAgain;
-                    Error = _verifyOperation.Error;
-                }
-
-                // 注意：验证完成后直接删除文件
-                if (File.Exists(_tempFilePath))
-                    File.Delete(_tempFilePath);
-            }
-
-            // 重新尝试下载
-            if (_steps == ESteps.TryAgain)
-            {
-                if (FailedTryAgain <= 0)
-                {
-                    Status = EOperationStatus.Failed;
-                    _steps = ESteps.Done;
-                    YooLogger.Error(Error);
-                    return;
-                }
-
-                _tryAgainTimer += Time.unscaledDeltaTime;
-                if (_tryAgainTimer > 1f)
-                {
-                    FailedTryAgain--;
-                    _steps = ESteps.CreateRequest;
-                    YooLogger.Warning(Error);
-                }
-            }
-        }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeWebRequest();
-        }
-        internal override void InternalWaitForAsyncComplete()
-        {
-            while (true)
-            {
-                if (ExecuteWhileDone())
-                {
-                    //TODO 尝试同步加载远端的资源文件失败
-                    if (Status == EOperationStatus.Failed)
-                    {
-                        YooLogger.Error($"Try load bundle {Bundle.BundleName} from remote !");
-                        YooLogger.Error($"The load remote bundle url : {_requestURL}");
-                    }
-
-                    _steps = ESteps.Done;
-                    break;
-                }
-            }
-        }
-
-        private void CreateWebRequest()
-        {
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
-            DownloadHandlerFile handler = new DownloadHandlerFile(_tempFilePath);
-            handler.removeFileOnAbort = true;
-            _webRequest.downloadHandler = handler;
-            _webRequest.disposeDownloadHandlerOnDispose = true;
-            _webRequest.SendWebRequest();
-        }
-        private void DisposeWebRequest()
-        {
-            if (_webRequest != null)
-            {
-                //注意：引擎底层会自动调用Abort方法
-                _webRequest.Dispose();
-                _webRequest = null;
-            }
-        }
-    }
-}

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/DownloadPackageBundleOperation.cs

@@ -0,0 +1,164 @@
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal class DownloadPackageBundleOperation : FSDownloadFileOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CheckExists,
+            CreateRequest,
+            CheckRequest,
+            TryAgain,
+            Done,
+        }
+
+        // 下载参数
+        protected readonly DefaultCacheFileSystem _fileSystem;
+        protected readonly DownloadFileOptions _options;
+        private UnityDownloadFileOperation _unityDownloadFileOp;
+
+        protected int _requestCount = 0;
+        protected float _tryAgainTimer;
+        protected int _failedTryAgain;
+        private ESteps _steps = ESteps.None;
+
+
+        internal DownloadPackageBundleOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, DownloadFileOptions options) : base(bundle)
+        {
+            _fileSystem = fileSystem;
+            _options = options;
+            _failedTryAgain = options.FailedTryAgain;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CheckExists;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            // 检测文件是否存在
+            if (_steps == ESteps.CheckExists)
+            {
+                if (_fileSystem.Exists(Bundle))
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    _steps = ESteps.CreateRequest;
+                }
+            }
+
+            // 创建下载器
+            if (_steps == ESteps.CreateRequest)
+            {
+                if (_options.IsValid() == false)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = "Download file options is invalid !";
+                    Debug.Log(Error);
+                    return;
+                }
+
+                string url = GetRequestURL();
+                _unityDownloadFileOp = _fileSystem.DownloadCenter.DownloadFileAsync(Bundle, url);
+                _steps = ESteps.CheckRequest;
+            }
+
+            // 检测下载结果
+            if (_steps == ESteps.CheckRequest)
+            {
+                if (IsWaitForAsyncComplete)
+                    _unityDownloadFileOp.WaitForAsyncComplete();
+
+                // 因为并发数量限制，下载器可能被挂起！
+                if (_unityDownloadFileOp.Status == EOperationStatus.None)
+                    return;
+
+                _unityDownloadFileOp.UpdateOperation();
+                Progress = _unityDownloadFileOp.Progress;
+                DownloadedBytes = _unityDownloadFileOp.DownloadedBytes;
+                DownloadProgress = _unityDownloadFileOp.DownloadProgress;
+                if (_unityDownloadFileOp.IsDone == false)
+                    return;
+
+                if (_unityDownloadFileOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    if (IsWaitForAsyncComplete == false && _failedTryAgain > 0)
+                    {
+                        _steps = ESteps.TryAgain;
+                        YooLogger.Warning($"Failed download : {_unityDownloadFileOp.URL} Try again !");
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = _unityDownloadFileOp.Error;
+                        YooLogger.Error(Error);
+                    }
+                }
+            }
+
+            // 重新尝试下载
+            if (_steps == ESteps.TryAgain)
+            {
+                _tryAgainTimer += Time.unscaledDeltaTime;
+                if (_tryAgainTimer > 1f)
+                {
+                    _tryAgainTimer = 0f;
+                    _failedTryAgain--;
+                    Progress = 0f;
+                    DownloadProgress = 0f;
+                    DownloadedBytes = 0;
+                    _steps = ESteps.CreateRequest;
+                }
+            }
+        }
+        internal override void InternalWaitForAsyncComplete()
+        {
+            while (true)
+            {
+                if (ExecuteWhileDone())
+                {
+                    _steps = ESteps.Done;
+                    break;
+                }
+            }
+        }
+        internal override void InternalAbort()
+        {
+            // 注意：取消下载任务的时候引用计数减一
+            if (_steps != ESteps.Done)
+            {
+                if (_unityDownloadFileOp != null)
+                {
+                    _unityDownloadFileOp.Release();
+                }
+            }
+        }
+
+        /// <summary>
+        /// 获取网络请求地址
+        /// </summary>
+        protected string GetRequestURL()
+        {
+            // 轮流返回请求地址
+            _requestCount++;
+            if (_requestCount % 2 == 0)
+                return _options.FallbackURL;
+            else
+                return _options.MainURL;
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/UnityDownloadFileOperation.cs

@@ -0,0 +1,52 @@
+
+namespace YooAsset
+{
+    internal abstract class UnityDownloadFileOperation : UnityWebRequestOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            Download,
+            CopyLocalFile,
+            VerifyFile,
+            Done,
+        }
+
+        protected readonly DefaultCacheFileSystem _fileSystem;
+        protected readonly PackageBundle _bundle;
+        protected readonly string _tempFilePath;
+
+        /// <summary>
+        /// 引用计数
+        /// </summary>
+        public int RefCount { private set; get; }
+
+        internal UnityDownloadFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, string url) : base(url)
+        {
+            _fileSystem = fileSystem;
+            _bundle = bundle;
+            _tempFilePath = _fileSystem.GetTempFilePath(bundle);
+        }
+        internal override string InternalGetDesc()
+        {
+            return $"RefCount : {RefCount}";
+        }
+
+        /// <summary>
+        /// 减少引用计数
+        /// </summary>
+        public void Release()
+        {
+            RefCount--;
+        }
+
+        /// <summary>
+        /// 增加引用计数
+        /// </summary>
+        public void Reference()
+        {
+            RefCount++;
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/UnityDownloadFileOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 40bb5e9391f413c42ae70e48ca90c4b7
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/UnityDownloadLocalFileOperation.cs

@@ -4,140 +4,110 @@ using UnityEngine.Networking;
 
 namespace YooAsset
 {
-    internal class DownloadLocalFileOperation : DefaultDownloadFileOperation
+    internal class UnityDownloadLocalFileOperation : UnityDownloadFileOperation
     {
-        private readonly DefaultCacheFileSystem _fileSystem;
         private VerifyTempFileOperation _verifyOperation;
-        private string _tempFilePath;
         private ESteps _steps = ESteps.None;
 
-        internal DownloadLocalFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
+        internal UnityDownloadLocalFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, string url)
+            : base(fileSystem, bundle, url)
         {
-            _fileSystem = fileSystem;
         }
         internal override void InternalStart()
         {
-            _tempFilePath = _fileSystem.GetTempFilePath(Bundle);
-            _steps = ESteps.CheckExists;
+            if (_fileSystem.CopyLocalFileServices != null)
+                _steps = ESteps.CopyLocalFile;
+            else
+                _steps = ESteps.CreateRequest;
         }
         internal override void InternalUpdate()
         {
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
-            // 检测文件是否存在
-            if (_steps == ESteps.CheckExists)
-            {
-                if (_fileSystem.Exists(Bundle))
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Succeed;
-                }
-                else
-                {
-                    if (_fileSystem.CopyLocalFileServices != null)
-                        _steps = ESteps.CopyBuildinBundle;
-                    else
-                        _steps = ESteps.CreateRequest;
-                }
-            }
-
             // 创建下载器
             if (_steps == ESteps.CreateRequest)
             {
                 FileUtility.CreateFileDirectory(_tempFilePath);
-
-                // 删除临时文件
                 if (File.Exists(_tempFilePath))
                     File.Delete(_tempFilePath);
 
-                // 获取请求地址
-                _requestURL = GetRequestURL();
-
-                // 重置请求
-                ResetRequestFiled();
-
-                // 创建下载器
                 CreateWebRequest();
-
-                _steps = ESteps.CheckRequest;
+                _steps = ESteps.Download;
             }
 
             // 检测下载结果
-            if (_steps == ESteps.CheckRequest)
+            if (_steps == ESteps.Download)
             {
                 DownloadProgress = _webRequest.downloadProgress;
                 DownloadedBytes = (long)_webRequest.downloadedBytes;
                 Progress = DownloadProgress;
                 if (_webRequest.isDone == false)
-                {
-                    CheckRequestTimeout();
                     return;
-                }
 
                 // 检查网络错误
                 if (CheckRequestResult())
-                    _steps = ESteps.VerifyTempFile;
+                {
+                    _steps = ESteps.VerifyFile;
+                }
                 else
-                    _steps = ESteps.TryAgain;
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                }
 
                 // 注意：最终释放请求器
-                DisposeWebRequest();
+                DisposeRequest();
             }
 
             // 拷贝内置文件
-            if (_steps == ESteps.CopyBuildinBundle)
+            if (_steps == ESteps.CopyLocalFile)
             {
                 FileUtility.CreateFileDirectory(_tempFilePath);
-
-                // 删除临时文件
                 if (File.Exists(_tempFilePath))
                     File.Delete(_tempFilePath);
 
-                // 获取请求地址
-                _requestURL = GetRequestURL();
-
                 try
                 {
                     //TODO 团结引擎，在某些机型（红米），拷贝包内文件会小概率失败！需要借助其它方式来拷贝包内文件。
                     var localFileInfo = new LocalFileInfo();
                     localFileInfo.PackageName = _fileSystem.PackageName;
-                    localFileInfo.BundleName = Bundle.BundleName;
+                    localFileInfo.BundleName = _bundle.BundleName;
                     localFileInfo.SourceFileURL = _requestURL;
                     _fileSystem.CopyLocalFileServices.CopyFile(localFileInfo, _tempFilePath);
                     if (File.Exists(_tempFilePath))
                     {
                         DownloadProgress = 1f;
-                        DownloadedBytes = Bundle.FileSize;
+                        DownloadedBytes = _bundle.FileSize;
                         Progress = DownloadProgress;
-                        _steps = ESteps.VerifyTempFile;
+                        _steps = ESteps.VerifyFile;
                     }
                     else
                     {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
                         Error = $"Failed copy local file : {_requestURL}";
-                        _steps = ESteps.TryAgain;
                     }
                 }
                 catch (System.Exception ex)
                 {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
                     Error = $"Failed copy local file : {ex.Message}";
-                    _steps = ESteps.TryAgain;
                 }
             }
 
             // 验证下载文件
-            if (_steps == ESteps.VerifyTempFile)
+            if (_steps == ESteps.VerifyFile)
             {
-                var element = new TempFileElement(_tempFilePath, Bundle.FileCRC, Bundle.FileSize);
-                _verifyOperation = new VerifyTempFileOperation(element);
-                _verifyOperation.StartOperation();
-                AddChildOperation(_verifyOperation);
-                _steps = ESteps.CheckVerifyTempFile;
-            }
+                if (_verifyOperation == null)
+                {
+                    var element = new TempFileElement(_tempFilePath, _bundle.FileCRC, _bundle.FileSize);
+                    _verifyOperation = new VerifyTempFileOperation(element);
+                    _verifyOperation.StartOperation();
+                    AddChildOperation(_verifyOperation);
+                }
 
-            // 等待验证完成
-            if (_steps == ESteps.CheckVerifyTempFile)
-            {
                 if (IsWaitForAsyncComplete)
                     _verifyOperation.WaitForAsyncComplete();
 
@@ -147,7 +117,7 @@ namespace YooAsset
 
                 if (_verifyOperation.Status == EOperationStatus.Succeed)
                 {
-                    if (_fileSystem.WriteCacheBundleFile(Bundle, _tempFilePath))
+                    if (_fileSystem.WriteCacheBundleFile(_bundle, _tempFilePath))
                     {
                         _steps = ESteps.Done;
                         Status = EOperationStatus.Succeed;
@@ -157,12 +127,12 @@ namespace YooAsset
                         _steps = ESteps.Done;
                         Status = EOperationStatus.Failed;
                         Error = $"{_fileSystem.GetType().FullName} failed to write file !";
-                        YooLogger.Error(Error);
                     }
                 }
                 else
                 {
-                    _steps = ESteps.TryAgain;
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
                     Error = _verifyOperation.Error;
                 }
 
@@ -170,20 +140,6 @@ namespace YooAsset
                 if (File.Exists(_tempFilePath))
                     File.Delete(_tempFilePath);
             }
-
-            // 重新尝试下载
-            if (_steps == ESteps.TryAgain)
-            {
-                //TODO 拷贝本地文件失败后不再尝试！
-                Status = EOperationStatus.Failed;
-                _steps = ESteps.Done;
-                YooLogger.Error(Error);
-            }
-        }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeWebRequest();
         }
         internal override void InternalWaitForAsyncComplete()
         {
@@ -201,21 +157,12 @@ namespace YooAsset
 
         private void CreateWebRequest()
         {
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
             DownloadHandlerFile handler = new DownloadHandlerFile(_tempFilePath);
             handler.removeFileOnAbort = true;
+            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
             _webRequest.downloadHandler = handler;
             _webRequest.disposeDownloadHandlerOnDispose = true;
             _webRequest.SendWebRequest();
         }
-        private void DisposeWebRequest()
-        {
-            if (_webRequest != null)
-            {
-                //注意：引擎底层会自动调用Abort方法
-                _webRequest.Dispose();
-                _webRequest = null;
-            }
-        }
     }
 }

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/UnityDownloadNormalFileOperation.cs

@@ -0,0 +1,122 @@
+using System.IO;
+using UnityEngine;
+using UnityEngine.Networking;
+
+namespace YooAsset
+{
+    internal sealed class UnityDownloadNormalFileOperation : UnityDownloadFileOperation
+    {
+        private VerifyTempFileOperation _verifyOperation;
+        private ESteps _steps = ESteps.None;
+
+        internal UnityDownloadNormalFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, string url)
+            : base(fileSystem, bundle, url)
+        {
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            // 创建下载器
+            if (_steps == ESteps.CreateRequest)
+            {
+                FileUtility.CreateFileDirectory(_tempFilePath);
+                if (File.Exists(_tempFilePath))
+                    File.Delete(_tempFilePath);
+
+                CreateWebRequest();
+                _steps = ESteps.Download;
+            }
+
+            // 检测下载结果
+            if (_steps == ESteps.Download)
+            {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
+                Progress = DownloadProgress;
+                if (_webRequest.isDone == false)
+                    return;
+
+                // 检查网络错误
+                if (CheckRequestResult())
+                {
+                    _steps = ESteps.VerifyFile;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                }
+
+                // 注意：最终释放请求器
+                DisposeRequest();
+            }
+
+            // 验证下载文件
+            if (_steps == ESteps.VerifyFile)
+            {
+                if (_verifyOperation == null)
+                {
+                    var element = new TempFileElement(_tempFilePath, _bundle.FileCRC, _bundle.FileSize);
+                    _verifyOperation = new VerifyTempFileOperation(element);
+                    _verifyOperation.StartOperation();
+                    AddChildOperation(_verifyOperation);
+                }
+
+                if (IsWaitForAsyncComplete)
+                    _verifyOperation.WaitForAsyncComplete();
+
+                _verifyOperation.UpdateOperation();
+                if (_verifyOperation.IsDone == false)
+                    return;
+
+                if (_verifyOperation.Status == EOperationStatus.Succeed)
+                {
+                    if (_fileSystem.WriteCacheBundleFile(_bundle, _tempFilePath))
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Succeed;
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"{_fileSystem.GetType().FullName} failed to write file ! {_tempFilePath}";
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _verifyOperation.Error;
+                }
+
+                // 注意：验证完成后直接删除文件
+                if (File.Exists(_tempFilePath))
+                    File.Delete(_tempFilePath);
+            }
+        }
+        internal override void InternalWaitForAsyncComplete()
+        {
+            if (_steps != ESteps.Done)
+            {
+                YooLogger.Error($"Try load bundle {_bundle.BundleName} from remote : {_requestURL} !");
+            }
+        }
+
+        private void CreateWebRequest()
+        {
+            DownloadHandlerFile handler = new DownloadHandlerFile(_tempFilePath);
+            handler.removeFileOnAbort = true;
+            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
+            _webRequest.downloadHandler = handler;
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            _webRequest.SendWebRequest();
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/UnityDownloadResumeFileOperation.cs

@@ -4,63 +4,38 @@ using UnityEngine.Networking;
 
 namespace YooAsset
 {
-    internal sealed class DownloadResumeFileOperation : DefaultDownloadFileOperation
+    internal sealed class UnityDownloadResumeFileOperation : UnityDownloadFileOperation
     {
-        private readonly DefaultCacheFileSystem _fileSystem;
-        private DownloadHandlerFileRange _downloadHandle;
         private VerifyTempFileOperation _verifyOperation;
         private long _fileOriginLength = 0;
-        private string _tempFilePath;
         private ESteps _steps = ESteps.None;
 
-        internal DownloadResumeFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
+        internal UnityDownloadResumeFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, string url)
+            : base(fileSystem, bundle, url)
         {
-            _fileSystem = fileSystem;
         }
         internal override void InternalStart()
         {
-            _tempFilePath = _fileSystem.GetTempFilePath(Bundle);
-            _steps = ESteps.CheckExists;
+            _steps = ESteps.CreateRequest;
         }
         internal override void InternalUpdate()
         {
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
-            // 检测文件是否存在
-            if (_steps == ESteps.CheckExists)
-            {
-                if (_fileSystem.Exists(Bundle))
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Succeed;
-                }
-                else
-                {
-                    _steps = ESteps.CreateRequest;
-                }
-            }
-
             // 创建下载器
             if (_steps == ESteps.CreateRequest)
             {
                 FileUtility.CreateFileDirectory(_tempFilePath);
 
-                // 获取请求地址
-                _requestURL = GetRequestURL();
-
-                // 重置变量
-                ResetRequestFiled();
-
                 // 获取下载起始位置
                 _fileOriginLength = 0;
                 long fileBeginLength = -1;
                 if (File.Exists(_tempFilePath))
                 {
                     FileInfo fileInfo = new FileInfo(_tempFilePath);
-                    if (fileInfo.Length >= Bundle.FileSize)
+                    if (fileInfo.Length >= _bundle.FileSize)
                     {
-                        // 删除临时文件
                         File.Delete(_tempFilePath);
                     }
                     else
@@ -71,49 +46,48 @@ namespace YooAsset
                     }
                 }
 
-                // 创建下载器
                 CreateWebRequest(fileBeginLength);
-
-                _steps = ESteps.CheckRequest;
+                _steps = ESteps.Download;
             }
 
             // 检测下载结果
-            if (_steps == ESteps.CheckRequest)
+            if (_steps == ESteps.Download)
             {
                 DownloadProgress = _webRequest.downloadProgress;
                 DownloadedBytes = _fileOriginLength + (long)_webRequest.downloadedBytes;
+                Progress = DownloadProgress;
                 if (_webRequest.isDone == false)
-                {
-                    CheckRequestTimeout();
                     return;
-                }
 
                 // 检查网络错误
                 if (CheckRequestResult())
-                    _steps = ESteps.VerifyTempFile;
+                {
+                    _steps = ESteps.VerifyFile;
+                }
                 else
-                    _steps = ESteps.TryAgain;
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                }
 
                 // 在遇到特殊错误的时候删除文件
                 ClearTempFileWhenError();
 
                 // 注意：最终释放请求器
-                DisposeWebRequest();
+                DisposeRequest();
             }
 
             // 验证下载文件
-            if (_steps == ESteps.VerifyTempFile)
+            if (_steps == ESteps.VerifyFile)
             {
-                var element = new TempFileElement(_tempFilePath, Bundle.FileCRC, Bundle.FileSize);
-                _verifyOperation = new VerifyTempFileOperation(element);
-                _verifyOperation.StartOperation();
-                AddChildOperation(_verifyOperation);
-                _steps = ESteps.CheckVerifyTempFile;
-            }
+                if (_verifyOperation == null)
+                {
+                    var element = new TempFileElement(_tempFilePath, _bundle.FileCRC, _bundle.FileSize);
+                    _verifyOperation = new VerifyTempFileOperation(element);
+                    _verifyOperation.StartOperation();
+                    AddChildOperation(_verifyOperation);
+                }
 
-            // 等待验证完成
-            if (_steps == ESteps.CheckVerifyTempFile)
-            {
                 if (IsWaitForAsyncComplete)
                     _verifyOperation.WaitForAsyncComplete();
 
@@ -123,104 +97,38 @@ namespace YooAsset
 
                 if (_verifyOperation.Status == EOperationStatus.Succeed)
                 {
-                    if (_fileSystem.WriteCacheBundleFile(Bundle, _tempFilePath))
+                    if (_fileSystem.WriteCacheBundleFile(_bundle, _tempFilePath))
                     {
-                        Status = EOperationStatus.Succeed;
                         _steps = ESteps.Done;
+                        Status = EOperationStatus.Succeed;
                     }
                     else
                     {
-                        Error = $"{_fileSystem.GetType().FullName} failed to write file !";
-                        Status = EOperationStatus.Failed;
                         _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"{_fileSystem.GetType().FullName} failed to write file !";
                     }
                 }
                 else
                 {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
                     Error = _verifyOperation.Error;
-                    _steps = ESteps.TryAgain;
                 }
 
                 // 注意：验证完成后直接删除文件
                 if (File.Exists(_tempFilePath))
                     File.Delete(_tempFilePath);
             }
-
-            // 重新尝试下载
-            if (_steps == ESteps.TryAgain)
-            {
-                if (FailedTryAgain <= 0)
-                {
-                    Status = EOperationStatus.Failed;
-                    _steps = ESteps.Done;
-                    YooLogger.Error(Error);
-                    return;
-                }
-
-                _tryAgainTimer += Time.unscaledDeltaTime;
-                if (_tryAgainTimer > 1f)
-                {
-                    FailedTryAgain--;
-                    _steps = ESteps.CreateRequest;
-                    YooLogger.Warning(Error);
-                }
-            }
-        }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeWebRequest();
         }
         internal override void InternalWaitForAsyncComplete()
         {
-            while (true)
+            if (_steps != ESteps.Done)
             {
-                if (ExecuteWhileDone())
-                {
-                    //TODO 尝试同步加载远端的资源文件失败
-                    if (Status == EOperationStatus.Failed)
-                    {
-                        YooLogger.Error($"Try load bundle {Bundle.BundleName} from remote !");
-                        YooLogger.Error($"The load remote bundle url : {_requestURL}");
-                    }
-
-                    _steps = ESteps.Done;
-                    break;
-                }
+                YooLogger.Error($"Try load bundle {_bundle.BundleName} from remote : {_requestURL} !");
             }
         }
 
-        private void CreateWebRequest(long beginLength)
-        {
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
-#if UNITY_2019_4_OR_NEWER
-            var handler = new DownloadHandlerFile(_tempFilePath, true);
-            handler.removeFileOnAbort = false;
-#else
-            var handler = new DownloadHandlerFileRange(FileSavePath, Bundle.FileSize, _webRequest);
-            _downloadHandle = handler;
-#endif
-            _webRequest.downloadHandler = handler;
-            _webRequest.disposeDownloadHandlerOnDispose = true;
-            if (beginLength > 0)
-                _webRequest.SetRequestHeader("Range", $"bytes={beginLength}-");
-            _webRequest.SendWebRequest();
-        }
-        private void DisposeWebRequest()
-        {
-            if (_downloadHandle != null)
-            {
-                _downloadHandle.Cleanup();
-                _downloadHandle = null;
-            }
-
-            if (_webRequest != null)
-            {
-                //注意：引擎底层会自动调用Abort方法
-                _webRequest.Dispose();
-                _webRequest = null;
-            }
-        }
         private void ClearTempFileWhenError()
         {
             if (_fileSystem.ResumeDownloadResponseCodes == null)
@@ -233,5 +141,16 @@ namespace YooAsset
                     File.Delete(_tempFilePath);
             }
         }
+        private void CreateWebRequest(long fileBeginLength)
+        {
+            var handler = new DownloadHandlerFile(_tempFilePath, true);
+            handler.removeFileOnAbort = false;
+            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
+            _webRequest.downloadHandler = handler;
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            if (fileBeginLength > 0)
+                _webRequest.SetRequestHeader("Range", $"bytes={fileBeginLength}-");
+            _webRequest.SendWebRequest();
+        }
     }
 }

Assets/YooAsset/Runtime/FileSystem/DefaultWebRemoteFileSystem/DefaultWebRemoteFileSystem.cs

@@ -56,7 +56,7 @@ namespace YooAsset
         /// <summary>
         /// 自定义参数：资源清单服务类
         /// </summary>
-        public IManifestServices ManifestServices { private set; get; }
+        public IManifestRestoreServices ManifestServices { private set; get; }
         #endregion
 
 
@@ -118,7 +118,7 @@ namespace YooAsset
             }
             else if (name == FileSystemParametersDefine.MANIFEST_SERVICES)
             {
-                ManifestServices = (IManifestServices)value;
+                ManifestServices = (IManifestRestoreServices)value;
             }
             else
             {

Assets/YooAsset/Runtime/FileSystem/DefaultWebRemoteFileSystem/Operation/DWRFSLoadBundleOperation.cs

@@ -6,13 +6,13 @@ namespace YooAsset
         private enum ESteps
         {
             None,
-            DownloadAssetBundle,
+            LoadWebAssetBundle,
             Done,
         }
 
         private readonly DefaultWebRemoteFileSystem _fileSystem;
         private readonly PackageBundle _bundle;
-        private DownloadAssetBundleOperation _downloadAssetBundleOp;
+        private LoadWebAssetBundleOperation _loadWebAssetBundleOp;
         private ESteps _steps = ESteps.None;
 
 
@@ -23,50 +23,51 @@ namespace YooAsset
         }
         internal override void InternalStart()
         {
-            _steps = ESteps.DownloadAssetBundle;
+            _steps = ESteps.LoadWebAssetBundle;
         }
         internal override void InternalUpdate()
         {
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
-            if (_steps == ESteps.DownloadAssetBundle)
+            if (_steps == ESteps.LoadWebAssetBundle)
             {
-                if (_downloadAssetBundleOp == null)
+                if (_loadWebAssetBundleOp == null)
                 {
-                    DownloadFileOptions options = new DownloadFileOptions(int.MaxValue, 60);
-                    options.MainURL = _fileSystem.RemoteServices.GetRemoteMainURL(_bundle.FileName);
-                    options.FallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(_bundle.FileName);
-
+                    string mainURL = _fileSystem.RemoteServices.GetRemoteMainURL(_bundle.FileName);
+                    string fallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(_bundle.FileName);
+                    DownloadFileOptions options = new DownloadFileOptions(int.MaxValue);
+                    options.SetURL(mainURL, fallbackURL);
+                    
                     if (_bundle.Encrypted)
                     {
-                        _downloadAssetBundleOp = new DownloadWebEncryptAssetBundleOperation(true, _fileSystem.DecryptionServices, _bundle, options);
-                        _downloadAssetBundleOp.StartOperation();
-                        AddChildOperation(_downloadAssetBundleOp);
+                        _loadWebAssetBundleOp = new LoadWebEncryptAssetBundleOperation(_bundle, options, _fileSystem.DecryptionServices);
+                        _loadWebAssetBundleOp.StartOperation();
+                        AddChildOperation(_loadWebAssetBundleOp);
                     }
                     else
                     {
-                        _downloadAssetBundleOp = new DownloadWebNormalAssetBundleOperation(_fileSystem.DisableUnityWebCache, _bundle, options);
-                        _downloadAssetBundleOp.StartOperation();
-                        AddChildOperation(_downloadAssetBundleOp);
+                        _loadWebAssetBundleOp = new LoadWebNormalAssetBundleOperation(_bundle, options, _fileSystem.DisableUnityWebCache);
+                        _loadWebAssetBundleOp.StartOperation();
+                        AddChildOperation(_loadWebAssetBundleOp);
                     }
                 }
 
-                _downloadAssetBundleOp.UpdateOperation();
-                DownloadProgress = _downloadAssetBundleOp.DownloadProgress;
-                DownloadedBytes = _downloadAssetBundleOp.DownloadedBytes;
-                Progress = _downloadAssetBundleOp.Progress;
-                if (_downloadAssetBundleOp.IsDone == false)
+                _loadWebAssetBundleOp.UpdateOperation();
+                DownloadProgress = _loadWebAssetBundleOp.DownloadProgress;
+                DownloadedBytes = _loadWebAssetBundleOp.DownloadedBytes;
+                Progress = _loadWebAssetBundleOp.Progress;
+                if (_loadWebAssetBundleOp.IsDone == false)
                     return;
 
-                if (_downloadAssetBundleOp.Status == EOperationStatus.Succeed)
+                if (_loadWebAssetBundleOp.Status == EOperationStatus.Succeed)
                 {
-                    var assetBundle = _downloadAssetBundleOp.Result;
+                    var assetBundle = _loadWebAssetBundleOp.Result;
                     if (assetBundle == null)
                     {
                         _steps = ESteps.Done;
                         Status = EOperationStatus.Failed;
-                        Error = $"{nameof(DownloadAssetBundleOperation)} loaded asset bundle is null !";
+                        Error = $"{nameof(DWRFSLoadAssetBundleOperation)} loaded asset bundle is null !";
                     }
                     else
                     {
@@ -79,7 +80,7 @@ namespace YooAsset
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
-                    Error = _downloadAssetBundleOp.Error;
+                    Error = _loadWebAssetBundleOp.Error;
                 }
             }
         }

Assets/YooAsset/Runtime/FileSystem/DefaultWebRemoteFileSystem/Operation/DWRFSLoadPackageManifestOperation.cs

@@ -64,7 +64,7 @@ namespace YooAsset
                 if (_loadWebPackageManifestOp == null)
                 {
                     string packageHash = _requestWebPackageHashOp.PackageHash;
-                    _loadWebPackageManifestOp = new LoadWebRemotePackageManifestOperation(_fileSystem, _packageVersion, packageHash);
+                    _loadWebPackageManifestOp = new LoadWebRemotePackageManifestOperation(_fileSystem, _packageVersion, packageHash, _timeout);
                     _loadWebPackageManifestOp.StartOperation();
                     AddChildOperation(_loadWebPackageManifestOp);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultWebRemoteFileSystem/Operation/internal/LoadWebRemotePackageManifestOperation.cs

@@ -15,6 +15,7 @@ namespace YooAsset
         private readonly DefaultWebRemoteFileSystem _fileSystem;
         private readonly string _packageVersion;
         private readonly string _packageHash;
+        private readonly int _timeout;
         private UnityWebDataRequestOperation _webDataRequestOp;
         private DeserializeManifestOperation _deserializer;
         private int _requestCount = 0;
@@ -26,11 +27,12 @@ namespace YooAsset
         public PackageManifest Manifest { private set; get; }
 
 
-        internal LoadWebRemotePackageManifestOperation(DefaultWebRemoteFileSystem fileSystem, string packageVersion, string packageHash)
+        internal LoadWebRemotePackageManifestOperation(DefaultWebRemoteFileSystem fileSystem, string packageVersion, string packageHash, int timeout)
         {
             _fileSystem = fileSystem;
             _packageVersion = packageVersion;
             _packageHash = packageHash;
+            _timeout = timeout;
         }
         internal override void InternalStart()
         {
@@ -48,7 +50,7 @@ namespace YooAsset
                 {
                     string fileName = YooAssetSettingsData.GetManifestBinaryFileName(_fileSystem.PackageName, _packageVersion);
                     string url = GetWebRequestURL(fileName);
-                    _webDataRequestOp = new UnityWebDataRequestOperation(url);
+                    _webDataRequestOp = new UnityWebDataRequestOperation(url, _timeout);
                     _webDataRequestOp.StartOperation();
                     AddChildOperation(_webDataRequestOp);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/DefaultWebServerFileSystem.cs

@@ -65,7 +65,7 @@ namespace YooAsset
         /// <summary>
         /// 自定义参数：资源清单服务类
         /// </summary>
-        public IManifestServices ManifestServices { private set; get; }
+        public IManifestRestoreServices ManifestServices { private set; get; }
         #endregion
 
 
@@ -123,7 +123,7 @@ namespace YooAsset
             }
             else if (name == FileSystemParametersDefine.MANIFEST_SERVICES)
             {
-                ManifestServices = (IManifestServices)value;
+                ManifestServices = (IManifestRestoreServices)value;
             }
             else
             {

Assets/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSInitializeOperation.cs

@@ -32,23 +32,7 @@ namespace YooAsset
             {
                 if (_loadCatalogFileOp == null)
                 {
-#if UNITY_EDITOR
-                    /*
-                    // 兼容性初始化
-                    // 说明：内置文件系统在编辑器下运行时需要动态生成
-                    string packageRoot = _fileSystem.FileRoot;
-                    bool result = DefaultBuildinFileSystemBuild.CreateBuildinCatalogFile(_fileSystem.ManifestServices, _fileSystem.PackageName, packageRoot);
-                    if (result == false)
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"Create package catalog file failed ! See the detail error in console !";
-                        return;
-                    }
-                    */
-#endif
-
-                    _loadCatalogFileOp = new LoadWebServerCatalogFileOperation(_fileSystem);
+                    _loadCatalogFileOp = new LoadWebServerCatalogFileOperation(_fileSystem, 60);
                     _loadCatalogFileOp.StartOperation();
                     AddChildOperation(_loadCatalogFileOp);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSLoadBundleOperation.cs

@@ -6,13 +6,13 @@ namespace YooAsset
         private enum ESteps
         {
             None,
-            DownloadAssetBundle,
+            LoadWebAssetBundle,
             Done,
         }
 
         private readonly DefaultWebServerFileSystem _fileSystem;
         private readonly PackageBundle _bundle;
-        private DownloadAssetBundleOperation _downloadAssetBundleOp;
+        private LoadWebAssetBundleOperation _loadWebAssetBundleOp;
         private ESteps _steps = ESteps.None;
 
 
@@ -23,51 +23,51 @@ namespace YooAsset
         }
         internal override void InternalStart()
         {
-            _steps = ESteps.DownloadAssetBundle;
+            _steps = ESteps.LoadWebAssetBundle;
         }
         internal override void InternalUpdate()
         {
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
-            if (_steps == ESteps.DownloadAssetBundle)
+            if (_steps == ESteps.LoadWebAssetBundle)
             {
-                if (_downloadAssetBundleOp == null)
+                if (_loadWebAssetBundleOp == null)
                 {
-                    DownloadFileOptions options = new DownloadFileOptions(int.MaxValue, 60);
                     string fileLoadPath = _fileSystem.GetWebFileLoadPath(_bundle);
-                    options.MainURL = DownloadSystemHelper.ConvertToWWWPath(fileLoadPath);
-                    options.FallbackURL = options.MainURL;
+                    string mainURL = DownloadSystemHelper.ConvertToWWWPath(fileLoadPath);
+                    DownloadFileOptions options = new DownloadFileOptions(int.MaxValue);
+                    options.SetURL(mainURL, mainURL);
 
                     if (_bundle.Encrypted)
                     {
-                        _downloadAssetBundleOp = new DownloadWebEncryptAssetBundleOperation(true, _fileSystem.DecryptionServices, _bundle, options);
-                        _downloadAssetBundleOp.StartOperation();
-                        AddChildOperation(_downloadAssetBundleOp);
+                        _loadWebAssetBundleOp = new LoadWebEncryptAssetBundleOperation(_bundle, options, _fileSystem.DecryptionServices);
+                        _loadWebAssetBundleOp.StartOperation();
+                        AddChildOperation(_loadWebAssetBundleOp);
                     }
                     else
                     {
-                        _downloadAssetBundleOp = new DownloadWebNormalAssetBundleOperation(_fileSystem.DisableUnityWebCache, _bundle, options);
-                        _downloadAssetBundleOp.StartOperation();
-                        AddChildOperation(_downloadAssetBundleOp);
+                        _loadWebAssetBundleOp = new LoadWebNormalAssetBundleOperation(_bundle, options, _fileSystem.DisableUnityWebCache);
+                        _loadWebAssetBundleOp.StartOperation();
+                        AddChildOperation(_loadWebAssetBundleOp);
                     }
                 }
 
-                _downloadAssetBundleOp.UpdateOperation();
-                DownloadProgress = _downloadAssetBundleOp.DownloadProgress;
-                DownloadedBytes = _downloadAssetBundleOp.DownloadedBytes;
-                Progress = _downloadAssetBundleOp.Progress;
-                if (_downloadAssetBundleOp.IsDone == false)
+                _loadWebAssetBundleOp.UpdateOperation();
+                DownloadProgress = _loadWebAssetBundleOp.DownloadProgress;
+                DownloadedBytes = _loadWebAssetBundleOp.DownloadedBytes;
+                Progress = _loadWebAssetBundleOp.Progress;
+                if (_loadWebAssetBundleOp.IsDone == false)
                     return;
 
-                if (_downloadAssetBundleOp.Status == EOperationStatus.Succeed)
+                if (_loadWebAssetBundleOp.Status == EOperationStatus.Succeed)
                 {
-                    var assetBundle = _downloadAssetBundleOp.Result;
+                    var assetBundle = _loadWebAssetBundleOp.Result;
                     if (assetBundle == null)
                     {
                         _steps = ESteps.Done;
                         Status = EOperationStatus.Failed;
-                        Error = $"{nameof(DownloadAssetBundleOperation)} loaded asset bundle is null !";
+                        Error = $"{nameof(DWSFSLoadAssetBundleOperation)} loaded asset bundle is null !";
                     }
                     else
                     {
@@ -80,7 +80,7 @@ namespace YooAsset
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
-                    Error = _downloadAssetBundleOp.Error;
+                    Error = _loadWebAssetBundleOp.Error;
                 }
             }
         }

Assets/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSLoadPackageManifestOperation.cs

@@ -64,7 +64,7 @@ namespace YooAsset
                 if (_loadWebPackageManifestOp == null)
                 {
                     string packageHash = _requestWebPackageHashOp.PackageHash;
-                    _loadWebPackageManifestOp = new LoadWebServerPackageManifestOperation(_fileSystem, _packageVersion, packageHash);
+                    _loadWebPackageManifestOp = new LoadWebServerPackageManifestOperation(_fileSystem, _packageVersion, packageHash, _timeout);
                     _loadWebPackageManifestOp.StartOperation();
                     AddChildOperation(_loadWebPackageManifestOp);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/LoadWebServerCatalogFileOperation.cs

@@ -1,7 +1,4 @@
 using System;
-using System.IO;
-using System.Collections;
-using System.Collections.Generic;
 
 namespace YooAsset
 {
@@ -16,12 +13,14 @@ namespace YooAsset
         }
 
         private readonly DefaultWebServerFileSystem _fileSystem;
+        private readonly int _timeout;
         private UnityWebDataRequestOperation _webDataRequestOp;
         private ESteps _steps = ESteps.None;
 
-        internal LoadWebServerCatalogFileOperation(DefaultWebServerFileSystem fileSystem)
+        internal LoadWebServerCatalogFileOperation(DefaultWebServerFileSystem fileSystem, int timeout)
         {
             _fileSystem = fileSystem;
+            _timeout = timeout;
         }
         internal override void InternalStart()
         {
@@ -38,7 +37,7 @@ namespace YooAsset
                 {
                     string filePath = _fileSystem.GetCatalogBinaryFileLoadPath();
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webDataRequestOp = new UnityWebDataRequestOperation(url);
+                    _webDataRequestOp = new UnityWebDataRequestOperation(url, _timeout);
                     _webDataRequestOp.StartOperation();
                     AddChildOperation(_webDataRequestOp);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/LoadWebServerPackageManifestOperation.cs

@@ -15,6 +15,7 @@ namespace YooAsset
         private readonly DefaultWebServerFileSystem _fileSystem;
         private readonly string _packageVersion;
         private readonly string _packageHash;
+        private readonly int _timeout;
         private UnityWebDataRequestOperation _webDataRequestOp;
         private DeserializeManifestOperation _deserializer;
         private ESteps _steps = ESteps.None;
@@ -25,11 +26,12 @@ namespace YooAsset
         public PackageManifest Manifest { private set; get; }
 
 
-        internal LoadWebServerPackageManifestOperation(DefaultWebServerFileSystem fileSystem, string packageVersion, string packageHash)
+        internal LoadWebServerPackageManifestOperation(DefaultWebServerFileSystem fileSystem, string packageVersion, string packageHash, int timeout)
         {
             _fileSystem = fileSystem;
             _packageVersion = packageVersion;
             _packageHash = packageHash;
+            _timeout = timeout;
         }
         internal override void InternalStart()
         {
@@ -46,7 +48,7 @@ namespace YooAsset
                 {
                     string filePath = _fileSystem.GetWebPackageManifestFilePath(_packageVersion);
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webDataRequestOp = new UnityWebDataRequestOperation(url);
+                    _webDataRequestOp = new UnityWebDataRequestOperation(url, _timeout);
                     _webDataRequestOp.StartOperation();
                     AddChildOperation(_webDataRequestOp);
                 }

Assets/YooAsset/Runtime/FileSystem/FileSystemParametersDefine.cs

@@ -11,6 +11,7 @@ namespace YooAsset
         public const string APPEND_FILE_EXTENSION = "APPEND_FILE_EXTENSION";
         public const string DISABLE_CATALOG_FILE = "DISABLE_CATALOG_FILE";
         public const string DISABLE_UNITY_WEB_CACHE = "DISABLE_UNITY_WEB_CACHE";
+        public const string DISABLE_ONDEMAND_DOWNLOAD = "DISABLE_ONDEMAND_DOWNLOAD";
         public const string DOWNLOAD_MAX_CONCURRENCY = "DOWNLOAD_MAX_CONCURRENCY";
         public const string DOWNLOAD_MAX_REQUEST_PER_FRAME = "DOWNLOAD_MAX_REQUEST_PER_FRAME";
         public const string RESUME_DOWNLOAD_MINMUM_SIZE = "RESUME_DOWNLOAD_MINMUM_SIZE";

Assets/YooAsset/Runtime/FileSystem/Operation/FSDownloadFileOperation.cs

@@ -8,30 +8,44 @@ namespace YooAsset
         /// </summary>
         public readonly int FailedTryAgain;
 
-        /// <summary>
-        /// 超时时间
-        /// </summary>
-        public readonly int Timeout;
-
         /// <summary>
         /// 主资源地址
         /// </summary>
-        public string MainURL { set; get; }
+        public string MainURL { private set; get; }
 
         /// <summary>
         /// 备用资源地址
         /// </summary>
-        public string FallbackURL { set; get; }
+        public string FallbackURL { private set; get; }
 
         /// <summary>
         /// 拷贝的本地文件路径
         /// </summary>
         public string ImportFilePath { set; get; }
 
-        public DownloadFileOptions(int failedTryAgain, int timeout)
+        public DownloadFileOptions(int failedTryAgain)
         {
             FailedTryAgain = failedTryAgain;
-            Timeout = timeout;
+        }
+
+        /// <summary>
+        /// 设置下载地址
+        /// </summary>
+        public void SetURL(string mainURL, string fallbackURL)
+        {
+            MainURL = mainURL;
+            FallbackURL = fallbackURL;
+        }
+
+        /// <summary>
+        /// 是否有效
+        /// </summary>
+        public bool IsValid()
+        {
+            if (string.IsNullOrEmpty(MainURL) || string.IsNullOrEmpty(FallbackURL))
+                return false;
+
+            return true;
         }
     }
 
@@ -39,16 +53,6 @@ namespace YooAsset
     {
         public PackageBundle Bundle { private set; get; }
 
-        /// <summary>
-        /// 引用计数
-        /// </summary>
-        public int RefCount { private set; get; }
-
-        /// <summary>
-        /// HTTP返回码
-        /// </summary>
-        public long HttpCode { protected set; get; }
-
         /// <summary>
         /// 当前下载的字节数
         /// </summary>
@@ -63,31 +67,8 @@ namespace YooAsset
         public FSDownloadFileOperation(PackageBundle bundle)
         {
             Bundle = bundle;
-            RefCount = 0;
-            HttpCode = 0;
             DownloadedBytes = 0;
             DownloadProgress = 0;
         }
-
-        internal override string InternalGetDesc()
-        {
-            return $"RefCount : {RefCount}";
-        }
-
-        /// <summary>
-        /// 减少引用计数
-        /// </summary>
-        public virtual void Release()
-        {
-            RefCount--;
-        }
-
-        /// <summary>
-        /// 增加引用计数
-        /// </summary>
-        public virtual void Reference()
-        {
-            RefCount++;
-        }
     }
 }

Assets/YooAsset/Runtime/FileSystem/Operation/Internal/DefaultDownloadFileOperation.cs

@@ -1,131 +0,0 @@
-using UnityEngine;
-using UnityEngine.Networking;
-
-namespace YooAsset
-{
-    internal abstract class DefaultDownloadFileOperation : FSDownloadFileOperation
-    {
-        protected enum ESteps
-        {
-            None,
-            CheckExists,
-            CreateRequest,
-            CheckRequest,
-            CopyBuildinBundle,
-            VerifyTempFile,
-            CheckVerifyTempFile,
-            TryAgain,
-            Done,
-        }
-
-        // 下载参数
-        protected readonly DownloadFileOptions Options;
-
-        // 请求相关
-        protected UnityWebRequest _webRequest;
-        protected string _requestURL;
-        protected int _requestCount = 0;
-
-        // 超时相关
-        protected bool _isAbort = false;
-        protected long _latestDownloadBytes;
-        protected float _latestDownloadRealtime;
-        protected float _tryAgainTimer;
-
-        // 失败相关
-        protected int FailedTryAgain;
-
-
-        internal DefaultDownloadFileOperation(PackageBundle bundle, DownloadFileOptions options) : base(bundle)
-        {
-            Options = options;
-            FailedTryAgain = options.FailedTryAgain;
-        }
-
-        /// <summary>
-        /// 获取网络请求地址
-        /// </summary>
-        protected string GetRequestURL()
-        {
-            // 轮流返回请求地址
-            _requestCount++;
-            if (_requestCount % 2 == 0)
-                return Options.FallbackURL;
-            else
-                return Options.MainURL;
-        }
-
-        /// <summary>
-        /// 重置请求字段
-        /// </summary>
-        protected void ResetRequestFiled()
-        {
-            // 重置变量
-            _isAbort = false;
-            _latestDownloadBytes = 0;
-            _latestDownloadRealtime = Time.realtimeSinceStartup;
-            DownloadProgress = 0f;
-            DownloadedBytes = 0;
-
-            // 重置计时器
-            if (_tryAgainTimer > 0f)
-                YooLogger.Warning($"Try again download : {_requestURL}");
-            _tryAgainTimer = 0f;
-        }
-
-        /// <summary>
-        /// 检测请求超时
-        /// </summary>
-        protected void CheckRequestTimeout()
-        {
-            // 注意：在连续时间段内无新增下载数据及判定为超时
-            if (_isAbort == false)
-            {
-                if (_latestDownloadBytes != DownloadedBytes)
-                {
-                    _latestDownloadBytes = DownloadedBytes;
-                    _latestDownloadRealtime = UnityEngine.Time.realtimeSinceStartup;
-                }
-
-                float offset = UnityEngine.Time.realtimeSinceStartup - _latestDownloadRealtime;
-                if (offset > Options.Timeout)
-                {
-                    YooLogger.Warning($"Download request timeout : {_requestURL}");
-                    if (_webRequest != null)
-                        _webRequest.Abort();
-                    _isAbort = true;
-                }
-            }
-        }
-
-        /// <summary>
-        /// 检测请求结果
-        /// </summary>
-        protected bool CheckRequestResult()
-        {
-            HttpCode = _webRequest.responseCode;
-
-#if UNITY_2020_3_OR_NEWER
-            if (_webRequest.result != UnityWebRequest.Result.Success)
-            {
-                Error = _webRequest.error;
-                return false;
-            }
-            else
-            {
-                return true;
-            }
-#else
-            if (_webRequest.isNetworkError || _webRequest.isHttpError)
-            {
-                Error = _webRequest.error;
-                return false;
-            }
-            else
-            {
-                return true;
-            }
-#endif
-        }
-    }
-}

Assets/YooAsset/Runtime/FileSystem/Operation/Internal/DownloadAssetBundleOperation.cs

@@ -1,13 +0,0 @@
-using UnityEngine;
-
-namespace YooAsset
-{
-    internal abstract class DownloadAssetBundleOperation : DefaultDownloadFileOperation
-    {
-        internal DownloadAssetBundleOperation(PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
-        {
-        }
-
-        public AssetBundle Result;
-    }
-}

Assets/YooAsset/Runtime/FileSystem/Operation/Internal/DownloadFileWrapper.cs

@@ -1,71 +0,0 @@
-
-namespace YooAsset
-{
-    internal class DownloadFileWrapper : FSDownloadFileOperation
-    {
-        private enum ESteps
-        {
-            None,
-            Download,
-            Done,
-        }
-
-        private readonly FSDownloadFileOperation _downloadFileOp;
-        private ESteps _steps = ESteps.None;
-
-        internal DownloadFileWrapper(FSDownloadFileOperation downloadFileOp) : base(downloadFileOp.Bundle)
-        {
-            _downloadFileOp = downloadFileOp;
-        }
-        internal override void InternalStart()
-        {
-            _steps = ESteps.Download;
-        }
-        internal override void InternalUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            if (_steps == ESteps.Download)
-            {
-                if (IsWaitForAsyncComplete)
-                    _downloadFileOp.WaitForAsyncComplete();
-
-                if (_downloadFileOp.Status == EOperationStatus.None)
-                    return;
-
-                _downloadFileOp.UpdateOperation();
-                Progress = _downloadFileOp.Progress;
-                DownloadedBytes = _downloadFileOp.DownloadedBytes;
-                DownloadProgress = _downloadFileOp.DownloadProgress;
-                if (_downloadFileOp.IsDone == false)
-                    return;
-
-                _steps = ESteps.Done;
-                Status = _downloadFileOp.Status;
-                Error = _downloadFileOp.Error;
-                HttpCode = _downloadFileOp.HttpCode;
-            }
-        }
-        internal override void InternalWaitForAsyncComplete()
-        {
-            while (true)
-            {
-                if (ExecuteWhileDone())
-                {
-                    _steps = ESteps.Done;
-                    break;
-                }
-            }
-        }
-
-        public override void Release()
-        {
-            _downloadFileOp.Release();
-        }
-        public override void Reference()
-        {
-            _downloadFileOp.Reference();
-        }
-    }
-}

Assets/YooAsset/Runtime/FileSystem/Operation/Internal/DownloadWebEncryptAssetBundleOperation.cs

@@ -1,157 +0,0 @@
-using UnityEngine;
-using UnityEngine.Networking;
-
-namespace YooAsset
-{
-    internal class DownloadWebEncryptAssetBundleOperation : DownloadAssetBundleOperation
-    {
-        private readonly bool _checkTimeout;
-        private readonly IWebDecryptionServices _decryptionServices;
-        private DownloadHandlerBuffer _downloadhandler;
-        private ESteps _steps = ESteps.None;
-
-        internal DownloadWebEncryptAssetBundleOperation(bool checkTimeout, IWebDecryptionServices decryptionServices, PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
-        {
-            _checkTimeout = checkTimeout;
-            _decryptionServices = decryptionServices;
-        }
-        internal override void InternalStart()
-        {
-            _steps = ESteps.CreateRequest;
-        }
-        internal override void InternalUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            // 创建下载器
-            if (_steps == ESteps.CreateRequest)
-            {
-                // 获取请求地址
-                _requestURL = GetRequestURL();
-
-                // 重置变量
-                ResetRequestFiled();
-
-                // 创建下载器
-                CreateWebRequest();
-
-                _steps = ESteps.CheckRequest;
-            }
-
-            // 检测下载结果
-            if (_steps == ESteps.CheckRequest)
-            {
-                DownloadProgress = _webRequest.downloadProgress;
-                DownloadedBytes = (long)_webRequest.downloadedBytes;
-                Progress = DownloadProgress;
-                if (_webRequest.isDone == false)
-                {
-                    if (_checkTimeout)
-                        CheckRequestTimeout();
-                    return;
-                }
-
-                // 检查网络错误
-                if (CheckRequestResult())
-                {
-                    if (_decryptionServices == null)
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"The {nameof(IWebDecryptionServices)} is null !";
-                        YooLogger.Error(Error);
-                        return;
-                    }
-
-                    var fileData = _downloadhandler.data;
-                    if (fileData == null || fileData.Length == 0)
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"The download handler data is null or empty !";
-                        YooLogger.Error(Error);
-                        return;
-                    }
-
-                    AssetBundle assetBundle = LoadEncryptedAssetBundle(fileData);
-                    if (assetBundle == null)
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = "Download handler asset bundle object is null !";
-                    }
-                    else
-                    {
-                        _steps = ESteps.Done;
-                        Result = assetBundle;
-                        Status = EOperationStatus.Succeed;
-                    }
-                }
-                else
-                {
-                    _steps = ESteps.TryAgain;
-                }
-
-                // 注意：最终释放请求器
-                DisposeWebRequest();
-            }
-
-            // 重新尝试下载
-            if (_steps == ESteps.TryAgain)
-            {
-                if (FailedTryAgain <= 0)
-                {
-                    Status = EOperationStatus.Failed;
-                    _steps = ESteps.Done;
-                    YooLogger.Error(Error);
-                    return;
-                }
-
-                _tryAgainTimer += Time.unscaledDeltaTime;
-                if (_tryAgainTimer > 1f)
-                {
-                    FailedTryAgain--;
-                    _steps = ESteps.CreateRequest;
-                    YooLogger.Warning(Error);
-                }
-            }
-        }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeWebRequest();
-        }
-
-        private void CreateWebRequest()
-        {
-            _downloadhandler = new DownloadHandlerBuffer();
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
-            _webRequest.downloadHandler = _downloadhandler;
-            _webRequest.disposeDownloadHandlerOnDispose = true;
-            _webRequest.SendWebRequest();
-        }
-        private void DisposeWebRequest()
-        {
-            if (_webRequest != null)
-            {
-                //注意：引擎底层会自动调用Abort方法
-                _webRequest.Dispose();
-                _webRequest = null;
-            }
-        }
-
-        /// <summary>
-        /// 加载加密资源文件
-        /// </summary>
-        private AssetBundle LoadEncryptedAssetBundle(byte[] fileData)
-        {
-            var fileInfo = new WebDecryptFileInfo();
-            fileInfo.BundleName = Bundle.BundleName;
-            fileInfo.FileLoadCRC = Bundle.UnityCRC;
-            fileInfo.FileData = fileData;
-            var decryptResult = _decryptionServices.LoadAssetBundle(fileInfo);
-            return decryptResult.Result;
-        }
-    }
-}

Assets/YooAsset/Runtime/FileSystem/Operation/Internal/LoadWebAssetBundleOperation.cs

@@ -0,0 +1,22 @@
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal abstract class LoadWebAssetBundleOperation : AsyncOperationBase
+    {
+        /// <summary>
+        /// AssetBundle对象
+        /// </summary>
+        public AssetBundle Result;
+
+        /// <summary>
+        /// 下载进度
+        /// </summary>
+        public float DownloadProgress { protected set; get; } = 0;
+
+        /// <summary>
+        /// 下载大小
+        /// </summary>
+        public long DownloadedBytes { protected set; get; } = 0;
+    }
+}

Assets/YooAsset/Runtime/FileSystem/Operation/Internal/LoadWebEncryptAssetBundleOperation.cs

@@ -0,0 +1,146 @@
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal class LoadWebEncryptAssetBundleOperation : LoadWebAssetBundleOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            CheckRequest,
+            TryAgain,
+            Done,
+        }
+
+        private readonly PackageBundle _bundle;
+        private readonly DownloadFileOptions _options;
+        private readonly IWebDecryptionServices _decryptionServices;
+        private UnityWebDataRequestOperation _unityWebDataRequestOp;
+
+        protected int _requestCount = 0;
+        protected float _tryAgainTimer;
+        protected int _failedTryAgain;
+        private ESteps _steps = ESteps.None;
+
+        internal LoadWebEncryptAssetBundleOperation(PackageBundle bundle, DownloadFileOptions options, IWebDecryptionServices decryptionServices)
+        {
+            _bundle = bundle;
+            _options = options;
+            _decryptionServices = decryptionServices;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            // 创建下载器
+            if (_steps == ESteps.CreateRequest)
+            {
+                if (_decryptionServices == null)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"The {nameof(IWebDecryptionServices)} is null !";
+                    YooLogger.Error(Error);
+                    return;
+                }
+
+                string url = GetRequestURL();
+                _unityWebDataRequestOp = new UnityWebDataRequestOperation(url, 0);
+                _unityWebDataRequestOp.StartOperation();
+                AddChildOperation(_unityWebDataRequestOp);
+                _steps = ESteps.CheckRequest;
+            }
+
+            // 检测下载结果
+            if (_steps == ESteps.CheckRequest)
+            {
+                _unityWebDataRequestOp.UpdateOperation();
+                Progress = _unityWebDataRequestOp.Progress;
+                DownloadProgress = _unityWebDataRequestOp.DownloadProgress;
+                DownloadedBytes = _unityWebDataRequestOp.DownloadedBytes;
+                if (_unityWebDataRequestOp.IsDone == false)
+                    return;
+
+                // 检查网络错误
+                if (_unityWebDataRequestOp.Status == EOperationStatus.Succeed)
+                {
+                    AssetBundle assetBundle = LoadEncryptedAssetBundle(_unityWebDataRequestOp.Result);
+                    if (assetBundle == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = "Failed load encrypted AssetBundle !";
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Succeed;
+                        Result = assetBundle;
+                    }
+                }
+                else
+                {
+                    if (_failedTryAgain > 0)
+                    {
+                        _steps = ESteps.TryAgain;
+                        YooLogger.Warning($"Failed download : {_unityWebDataRequestOp.URL} Try again !");
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = _unityWebDataRequestOp.Error;
+                        YooLogger.Error(Error);
+                    }
+                }
+            }
+
+            // 重新尝试下载
+            if (_steps == ESteps.TryAgain)
+            {
+                _tryAgainTimer += Time.unscaledDeltaTime;
+                if (_tryAgainTimer > 1f)
+                {
+                    _tryAgainTimer = 0f;
+                    _failedTryAgain--;
+                    Progress = 0f;
+                    DownloadProgress = 0f;
+                    DownloadedBytes = 0;
+                    _steps = ESteps.CreateRequest;
+                }
+            }
+        }
+
+        /// <summary>
+        /// 加载加密资源文件
+        /// </summary>
+        private AssetBundle LoadEncryptedAssetBundle(byte[] fileData)
+        {
+            var fileInfo = new WebDecryptFileInfo();
+            fileInfo.BundleName = _bundle.BundleName;
+            fileInfo.FileLoadCRC = _bundle.UnityCRC;
+            fileInfo.FileData = fileData;
+            var decryptResult = _decryptionServices.LoadAssetBundle(fileInfo);
+            return decryptResult.Result;
+        }
+
+        /// <summary>
+        /// 获取网络请求地址
+        /// </summary>
+        protected string GetRequestURL()
+        {
+            // 轮流返回请求地址
+            _requestCount++;
+            if (_requestCount % 2 == 0)
+                return _options.FallbackURL;
+            else
+                return _options.MainURL;
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/Operation/Internal/LoadWebNormalAssetBundleOperation.cs

@@ -0,0 +1,114 @@
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal class LoadWebNormalAssetBundleOperation : LoadWebAssetBundleOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            CheckRequest,
+            TryAgain,
+            Done,
+        }
+
+        private readonly PackageBundle _bundle;
+        private readonly DownloadFileOptions _options;
+        private readonly bool _disableUnityWebCache;
+        private UnityAssetBundleRequestOperation _unityAssetBundleRequestOp;
+
+        protected int _requestCount = 0;
+        protected float _tryAgainTimer;
+        protected int _failedTryAgain;
+        private ESteps _steps = ESteps.None;
+
+
+        internal LoadWebNormalAssetBundleOperation(PackageBundle bundle, DownloadFileOptions options, bool disableUnityWebCache)
+        {
+            _bundle = bundle;
+            _options = options;
+            _disableUnityWebCache = disableUnityWebCache;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            // 创建下载器
+            if (_steps == ESteps.CreateRequest)
+            {
+                string url = GetRequestURL();
+                _unityAssetBundleRequestOp = new UnityAssetBundleRequestOperation(_bundle, _disableUnityWebCache, url);
+                _unityAssetBundleRequestOp.StartOperation();
+                AddChildOperation(_unityAssetBundleRequestOp);
+                _steps = ESteps.CheckRequest;
+            }
+
+            // 检测下载结果
+            if (_steps == ESteps.CheckRequest)
+            {
+                _unityAssetBundleRequestOp.UpdateOperation();
+                Progress = _unityAssetBundleRequestOp.Progress;
+                DownloadedBytes = _unityAssetBundleRequestOp.DownloadedBytes;
+                DownloadProgress = _unityAssetBundleRequestOp.DownloadProgress;
+                if (_unityAssetBundleRequestOp.IsDone == false)
+                    return;
+
+                if (_unityAssetBundleRequestOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                    Result = _unityAssetBundleRequestOp.Result;
+                }
+                else
+                {
+                    if (_failedTryAgain > 0)
+                    {
+                        _steps = ESteps.TryAgain;
+                        YooLogger.Warning($"Failed download : {_unityAssetBundleRequestOp.URL} Try again !");
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = _unityAssetBundleRequestOp.Error;
+                        YooLogger.Error(Error);
+                    }
+                }
+            }
+
+            // 重新尝试下载
+            if (_steps == ESteps.TryAgain)
+            {
+                _tryAgainTimer += Time.unscaledDeltaTime;
+                if (_tryAgainTimer > 1f)
+                {
+                    _tryAgainTimer = 0f;
+                    _failedTryAgain--;
+                    Progress = 0f;
+                    DownloadProgress = 0f;
+                    DownloadedBytes = 0;
+                    _steps = ESteps.CreateRequest;
+                }
+            }
+        }
+
+        /// <summary>
+        /// 获取网络请求地址
+        /// </summary>
+        protected string GetRequestURL()
+        {
+            // 轮流返回请求地址
+            _requestCount++;
+            if (_requestCount % 2 == 0)
+                return _options.FallbackURL;
+            else
+                return _options.MainURL;
+        }
+    }
+}

Assets/YooAsset/Runtime/PackageInvokeBuilder/PackageInvokeBuilder.cs

@@ -3,7 +3,7 @@ using System.Reflection;
 
 namespace YooAsset
 {
-    public static class PakcageInvokeBuilder
+    public static class PackageInvokeBuilder
     {
         /// <summary>
         /// 调用Editro类来执行构建资源包任务
@@ -32,7 +32,7 @@ namespace YooAsset
 #else
 namespace YooAsset
 { 
-    public static class PakcageInvokeBuilder
+    public static class PackageInvokeBuilder
     {
         public static PackageInvokeBuildResult InvokeBuilder(PackageInvokeBuildParam buildParam)
         {

Assets/YooAsset/Runtime/ResourceManager/ResourceManager.cs

@@ -60,40 +60,48 @@ namespace YooAsset
         /// <summary>
         /// 尝试卸载指定资源的资源包（包括依赖资源）
         /// </summary>
-        public void TryUnloadUnusedAsset(AssetInfo assetInfo)
+        public void TryUnloadUnusedAsset(AssetInfo assetInfo, int loopCount)
         {
+            if (assetInfo == null)
+            {
+                YooLogger.Error($"{nameof(AssetInfo)} is null !");
+                return;
+            }
             if (assetInfo.IsInvalid)
             {
                 YooLogger.Error($"Failed to unload asset ! {assetInfo.Error}");
                 return;
             }
 
-            // 卸载主资源包加载器
-            string mainBundleName = _bundleQuery.GetMainBundleName(assetInfo);
-            var mainLoader = TryGetBundleFileLoader(mainBundleName);
-            if (mainLoader != null)
+            while (loopCount > 0)
             {
-                mainLoader.TryDestroyProviders();
-                if (mainLoader.CanDestroyLoader())
-                {
-                    string bundleName = mainLoader.LoadBundleInfo.Bundle.BundleName;
-                    mainLoader.DestroyLoader();
-                    LoaderDic.Remove(bundleName);
-                }
-            }
+                loopCount--;
 
-            // 卸载依赖资源包加载器
-            string[] dependBundleNames = _bundleQuery.GetDependBundleNames(assetInfo);
-            foreach (var dependBundleName in dependBundleNames)
-            {
-                var dependLoader = TryGetBundleFileLoader(dependBundleName);
-                if (dependLoader != null)
+                // 卸载主资源包加载器
+                string mainBundleName = _bundleQuery.GetMainBundleName(assetInfo.Asset.BundleID);
+                var mainLoader = TryGetBundleFileLoader(mainBundleName);
+                if (mainLoader != null)
                 {
-                    if (dependLoader.CanDestroyLoader())
+                    mainLoader.TryDestroyProviders();
+                    if (mainLoader.CanDestroyLoader())
                     {
-                        string bundleName = dependLoader.LoadBundleInfo.Bundle.BundleName;
-                        dependLoader.DestroyLoader();
-                        LoaderDic.Remove(bundleName);
+                        mainLoader.DestroyLoader();
+                        LoaderDic.Remove(mainBundleName);
+                    }
+                }
+
+                // 卸载依赖资源包加载器
+                foreach (var dependID in assetInfo.Asset.DependBundleIDs)
+                {
+                    string dependBundleName = _bundleQuery.GetMainBundleName(dependID);
+                    var dependLoader = TryGetBundleFileLoader(dependBundleName);
+                    if (dependLoader != null)
+                    {
+                        if (dependLoader.CanDestroyLoader())
+                        {
+                            dependLoader.DestroyLoader();
+                            LoaderDic.Remove(dependBundleName);
+                        }
                     }
                 }
             }
@@ -291,8 +299,8 @@ namespace YooAsset
         }
         internal List<LoadBundleFileOperation> CreateDependBundleFileLoaders(AssetInfo assetInfo)
         {
-            BundleInfo[] bundleInfos = _bundleQuery.GetDependBundleInfos(assetInfo);
-            List<LoadBundleFileOperation> result = new List<LoadBundleFileOperation>(bundleInfos.Length);
+            List<BundleInfo> bundleInfos = _bundleQuery.GetDependBundleInfos(assetInfo);
+            List<LoadBundleFileOperation> result = new List<LoadBundleFileOperation>(bundleInfos.Count);
             foreach (var bundleInfo in bundleInfos)
             {
                 var bundleLoader = CreateBundleFileLoaderInternal(bundleInfo);

Assets/YooAsset/Runtime/ResourcePackage/BundleInfo.cs

@@ -36,9 +36,9 @@ namespace YooAsset
         /// <summary>
         /// 创建下载器
         /// </summary>
-        public FSDownloadFileOperation CreateDownloader(int failedTryAgain, int timeout)
+        public FSDownloadFileOperation CreateDownloader(int failedTryAgain)
         {
-            DownloadFileOptions options = new DownloadFileOptions(failedTryAgain, timeout);
+            DownloadFileOptions options = new DownloadFileOptions(failedTryAgain);
             options.ImportFilePath = _importFilePath;
             return _fileSystem.DownloadFileAsync(Bundle, options);
         }

Assets/YooAsset/Runtime/ResourcePackage/Interface/IBundleQuery.cs

@@ -1,4 +1,6 @@
-
+using System.Collections;
+using System.Collections.Generic;
+
 namespace YooAsset
 {
     internal interface IBundleQuery
@@ -11,21 +13,11 @@ namespace YooAsset
         /// <summary>
         /// 获取依赖的资源包信息集合
         /// </summary>
-        BundleInfo[] GetDependBundleInfos(AssetInfo assetPath);
+        List<BundleInfo> GetDependBundleInfos(AssetInfo assetPath);
 
         /// <summary>
         /// 获取主资源包名称
         /// </summary>
         string GetMainBundleName(int bundleID);
-
-        /// <summary>
-        /// 获取主资源包名称
-        /// </summary>
-        string GetMainBundleName(AssetInfo assetInfo);
-
-        /// <summary>
-        /// 获取依赖的资源包名称集合
-        /// </summary>
-        string[] GetDependBundleNames(AssetInfo assetInfo);
     }
 }

Assets/YooAsset/Runtime/ResourcePackage/Interface/IPlayMode.cs

@@ -34,15 +34,16 @@ namespace YooAsset
         ClearCacheFilesOperation ClearCacheFilesAsync(ClearCacheFilesOptions options);
         
         // 下载相关
-        ResourceDownloaderOperation CreateResourceDownloaderByAll(int downloadingMaxNumber, int failedTryAgain, int timeout);
-        ResourceDownloaderOperation CreateResourceDownloaderByTags(string[] tags, int downloadingMaxNumber, int failedTryAgain, int timeout);
-        ResourceDownloaderOperation CreateResourceDownloaderByPaths(AssetInfo[] assetInfos, bool recursiveDownload, int downloadingMaxNumber, int failedTryAgain, int timeout);
+        ResourceDownloaderOperation CreateResourceDownloaderByAll(int downloadingMaxNumber, int failedTryAgain);
+        ResourceDownloaderOperation CreateResourceDownloaderByTags(string[] tags, int downloadingMaxNumber, int failedTryAgain);
+        ResourceDownloaderOperation CreateResourceDownloaderByPaths(AssetInfo[] assetInfos, bool recursiveDownload, int downloadingMaxNumber, int failedTryAgain);
 
         // 解压相关
-        ResourceUnpackerOperation CreateResourceUnpackerByAll(int upackingMaxNumber, int failedTryAgain, int timeout);
-        ResourceUnpackerOperation CreateResourceUnpackerByTags(string[] tags, int upackingMaxNumber, int failedTryAgain, int timeout);
-
+        ResourceUnpackerOperation CreateResourceUnpackerByAll(int upackingMaxNumber, int failedTryAgain);
+        ResourceUnpackerOperation CreateResourceUnpackerByTags(string[] tags, int upackingMaxNumber, int failedTryAgain);
+        
         // 导入相关
-        ResourceImporterOperation CreateResourceImporterByFilePaths(string[] filePaths, int importerMaxNumber, int failedTryAgain, int timeout);
+        ResourceImporterOperation CreateResourceImporterByFilePaths(string[] filePaths, int importingMaxNumber, int failedTryAgain);
+        ResourceImporterOperation CreateResourceImporterByFileInfos(ImportFileInfo[] fileInfos, int importingMaxNumber, int failedTryAgain);
     }
 }

Assets/YooAsset/Runtime/ResourcePackage/ManifestTools.cs

@@ -44,7 +44,7 @@ namespace YooAsset
         /// <summary>
         /// 序列化（二进制文件）
         /// </summary>
-        public static void SerializeToBinary(string savePath, PackageManifest manifest, IManifestServices services)
+        public static void SerializeToBinary(string savePath, PackageManifest manifest, IManifestProcessServices services)
         {
             using (FileStream fs = new FileStream(savePath, FileMode.Create))
             {
@@ -124,7 +124,7 @@ namespace YooAsset
         /// <summary>
         /// 反序列化（二进制文件）
         /// </summary>
-        public static PackageManifest DeserializeFromBinary(byte[] binaryData, IManifestServices services)
+        public static PackageManifest DeserializeFromBinary(byte[] binaryData, IManifestRestoreServices services)
         {
             // 创建缓存器
             BufferReader buffer;

Assets/YooAsset/Runtime/ResourcePackage/Operation/DownloaderOperation.cs

@@ -40,7 +40,6 @@ namespace YooAsset
         private readonly string _packageName;
         private readonly int _downloadingMaxNumber;
         private readonly int _failedTryAgain;
-        private readonly int _timeout;
         private readonly List<BundleInfo> _bundleInfoList;
         private readonly List<FSDownloadFileOperation> _downloaders = new List<FSDownloadFileOperation>(MAX_LOADER_COUNT);
         private readonly List<FSDownloadFileOperation> _removeList = new List<FSDownloadFileOperation>(MAX_LOADER_COUNT);
@@ -102,13 +101,12 @@ namespace YooAsset
         public DownloadFileBegin DownloadFileBeginCallback { set; get; }
 
 
-        internal DownloaderOperation(string packageName, List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain, int timeout)
+        internal DownloaderOperation(string packageName, List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain)
         {
             _packageName = packageName;
             _bundleInfoList = downloadList;
             _downloadingMaxNumber = UnityEngine.Mathf.Clamp(downloadingMaxNumber, 1, MAX_LOADER_COUNT); ;
             _failedTryAgain = failedTryAgain;
-            _timeout = timeout;
 
             // 设置包裹名称 (fix #210)
             SetPackageName(packageName);
@@ -203,7 +201,7 @@ namespace YooAsset
                     {
                         int index = _bundleInfoList.Count - 1;
                         var bundleInfo = _bundleInfoList[index];
-                        var downloader = bundleInfo.CreateDownloader(_failedTryAgain, _timeout);
+                        var downloader = bundleInfo.CreateDownloader(_failedTryAgain);
                         downloader.StartOperation();
                         this.AddChildOperation(downloader);
 
@@ -366,7 +364,7 @@ namespace YooAsset
 
                 foreach (var downloader in _downloaders)
                 {
-                    downloader.Release();
+                    downloader.AbortOperation();
                 }
             }
         }
@@ -374,52 +372,52 @@ namespace YooAsset
 
     public sealed class ResourceDownloaderOperation : DownloaderOperation
     {
-        internal ResourceDownloaderOperation(string packageName, List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain, int timeout)
-            : base(packageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout)
+        internal ResourceDownloaderOperation(string packageName, List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain)
+            : base(packageName, downloadList, downloadingMaxNumber, failedTryAgain)
         {
         }
 
         /// <summary>
         /// 创建空的下载器
         /// </summary>
-        internal static ResourceDownloaderOperation CreateEmptyDownloader(string packageName, int downloadingMaxNumber, int failedTryAgain, int timeout)
+        internal static ResourceDownloaderOperation CreateEmptyDownloader(string packageName, int downloadingMaxNumber, int failedTryAgain)
         {
             List<BundleInfo> downloadList = new List<BundleInfo>();
-            var operation = new ResourceDownloaderOperation(packageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceDownloaderOperation(packageName, downloadList, downloadingMaxNumber, failedTryAgain);
             return operation;
         }
     }
     public sealed class ResourceUnpackerOperation : DownloaderOperation
     {
-        internal ResourceUnpackerOperation(string packageName, List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain, int timeout)
-            : base(packageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout)
+        internal ResourceUnpackerOperation(string packageName, List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain)
+            : base(packageName, downloadList, downloadingMaxNumber, failedTryAgain)
         {
         }
 
         /// <summary>
         /// 创建空的解压器
         /// </summary>
-        internal static ResourceUnpackerOperation CreateEmptyUnpacker(string packageName, int upackingMaxNumber, int failedTryAgain, int timeout)
+        internal static ResourceUnpackerOperation CreateEmptyUnpacker(string packageName, int upackingMaxNumber, int failedTryAgain)
         {
             List<BundleInfo> downloadList = new List<BundleInfo>();
-            var operation = new ResourceUnpackerOperation(packageName, downloadList, upackingMaxNumber, failedTryAgain, int.MaxValue);
+            var operation = new ResourceUnpackerOperation(packageName, downloadList, upackingMaxNumber, failedTryAgain);
             return operation;
         }
     }
     public sealed class ResourceImporterOperation : DownloaderOperation
     {
-        internal ResourceImporterOperation(string packageName, List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain, int timeout)
-            : base(packageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout)
+        internal ResourceImporterOperation(string packageName, List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain)
+            : base(packageName, downloadList, downloadingMaxNumber, failedTryAgain)
         {
         }
 
         /// <summary>
         /// 创建空的导入器
         /// </summary>
-        internal static ResourceImporterOperation CreateEmptyImporter(string packageName, int upackingMaxNumber, int failedTryAgain, int timeout)
+        internal static ResourceImporterOperation CreateEmptyImporter(string packageName, int upackingMaxNumber, int failedTryAgain)
         {
             List<BundleInfo> downloadList = new List<BundleInfo>();
-            var operation = new ResourceImporterOperation(packageName, downloadList, upackingMaxNumber, failedTryAgain, int.MaxValue);
+            var operation = new ResourceImporterOperation(packageName, downloadList, upackingMaxNumber, failedTryAgain);
             return operation;
         }
     }

Assets/YooAsset/Runtime/ResourcePackage/Operation/Internal/DeserializeManifestOperation.cs

@@ -20,7 +20,7 @@ namespace YooAsset
             Done,
         }
 
-        private readonly IManifestServices _services;
+        private readonly IManifestRestoreServices _services;
         private byte[] _sourceData;
         private BufferReader _buffer;
         private int _packageAssetCount;
@@ -33,7 +33,7 @@ namespace YooAsset
         /// </summary>
         public PackageManifest Manifest { private set; get; }
 
-        public DeserializeManifestOperation(IManifestServices services, byte[] binaryData)
+        public DeserializeManifestOperation(IManifestRestoreServices services, byte[] binaryData)
         {
             _services = services;
             _sourceData = binaryData;

Assets/YooAsset/Runtime/ResourcePackage/Operation/PreDownloadContentOperation.cs

@@ -107,11 +107,11 @@ namespace YooAsset
             if (Status != EOperationStatus.Succeed)
             {
                 YooLogger.Warning($"{nameof(PreDownloadContentOperation)} status is not succeed !");
-                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain, timeout);
+                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain);
             }
 
             List<BundleInfo> downloadList = _impl.GetDownloadListByAll(_manifest);
-            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain);
             return operation;
         }
 
@@ -127,11 +127,11 @@ namespace YooAsset
             if (Status != EOperationStatus.Succeed)
             {
                 YooLogger.Warning($"{nameof(PreDownloadContentOperation)} status is not succeed !");
-                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain, timeout);
+                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain);
             }
 
             List<BundleInfo> downloadList = _impl.GetDownloadListByTags(_manifest, new string[] { tag });
-            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain);
             return operation;
         }
 
@@ -147,11 +147,11 @@ namespace YooAsset
             if (Status != EOperationStatus.Succeed)
             {
                 YooLogger.Warning($"{nameof(PreDownloadContentOperation)} status is not succeed !");
-                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain, timeout);
+                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain);
             }
 
             List<BundleInfo> downloadList = _impl.GetDownloadListByTags(_manifest, tags);
-            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain);
             return operation;
         }
 
@@ -167,7 +167,7 @@ namespace YooAsset
             if (Status != EOperationStatus.Succeed)
             {
                 YooLogger.Warning($"{nameof(PreDownloadContentOperation)} status is not succeed !");
-                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain, timeout);
+                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain);
             }
 
             List<AssetInfo> assetInfos = new List<AssetInfo>();
@@ -175,7 +175,7 @@ namespace YooAsset
             assetInfos.Add(assetInfo);
 
             List<BundleInfo> downloadList = _impl.GetDownloadListByPaths(_manifest, assetInfos.ToArray(), recursiveDownload);
-            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain);
             return operation;
         }
 
@@ -191,7 +191,7 @@ namespace YooAsset
             if (Status != EOperationStatus.Succeed)
             {
                 YooLogger.Warning($"{nameof(PreDownloadContentOperation)} status is not succeed !");
-                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain, timeout);
+                return ResourceDownloaderOperation.CreateEmptyDownloader(_impl.PackageName, downloadingMaxNumber, failedTryAgain);
             }
 
             List<AssetInfo> assetInfos = new List<AssetInfo>(locations.Length);
@@ -202,7 +202,7 @@ namespace YooAsset
             }
 
             List<BundleInfo> downloadList = _impl.GetDownloadListByPaths(_manifest, assetInfos.ToArray(), recursiveDownload);
-            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceDownloaderOperation(_impl.PackageName, downloadList, downloadingMaxNumber, failedTryAgain);
             return operation;
         }
     }

Assets/YooAsset/Runtime/ResourcePackage/PackageManifest.cs

@@ -1,5 +1,4 @@
 using System;
-using System.IO;
 using System.Diagnostics;
 using System.Collections;
 using System.Collections.Generic;
@@ -171,10 +170,10 @@ namespace YooAsset
         }
 
         /// <summary>
-        /// 获取依赖列表
+        /// 获取资源对象的依赖列表（框架层查询结果）
         /// 注意：传入的资源对象一定合法有效！
         /// </summary>
-        public PackageBundle[] GetAllDependencies(PackageAsset packageAsset)
+        public List<PackageBundle> GetAssetAllDependencies(PackageAsset packageAsset)
         {
             List<PackageBundle> result = new List<PackageBundle>(packageAsset.DependBundleIDs.Length);
             foreach (var dependID in packageAsset.DependBundleIDs)
@@ -182,14 +181,14 @@ namespace YooAsset
                 var dependBundle = GetMainPackageBundle(dependID);
                 result.Add(dependBundle);
             }
-            return result.ToArray();
+            return result;
         }
 
         /// <summary>
-        /// 获取依赖列表
+        /// 获取资源包的依赖列表（引擎层查询结果）
         /// 注意：传入的资源包对象一定合法有效！
         /// </summary>
-        public PackageBundle[] GetAllDependencies(PackageBundle packageBundle)
+        public List<PackageBundle> GetBundleAllDependencies(PackageBundle packageBundle)
         {
             List<PackageBundle> result = new List<PackageBundle>(packageBundle.DependBundleIDs.Length);
             foreach (var dependID in packageBundle.DependBundleIDs)
@@ -197,7 +196,7 @@ namespace YooAsset
                 var dependBundle = GetMainPackageBundle(dependID);
                 result.Add(dependBundle);
             }
-            return result.ToArray();
+            return result;
         }
 
         /// <summary>
@@ -211,17 +210,17 @@ namespace YooAsset
         /// <summary>
         /// 尝试获取包裹的资源包
         /// </summary>
-        public bool TryGetPackageBundleByBundleName(string bundleName, out PackageBundle result)
+        public bool TryGetPackageBundleByFileName(string fileName, out PackageBundle result)
         {
-            return BundleDic1.TryGetValue(bundleName, out result);
+            return BundleDic2.TryGetValue(fileName, out result);
         }
 
         /// <summary>
         /// 尝试获取包裹的资源包
         /// </summary>
-        public bool TryGetPackageBundleByFileName(string fileName, out PackageBundle result)
+        public bool TryGetPackageBundleByBundleName(string bundleName, out PackageBundle result)
         {
-            return BundleDic2.TryGetValue(fileName, out result);
+            return BundleDic1.TryGetValue(bundleName, out result);
         }
 
         /// <summary>
@@ -245,13 +244,14 @@ namespace YooAsset
         /// </summary>
         public AssetInfo[] GetAllAssetInfos()
         {
-            List<AssetInfo> result = new List<AssetInfo>(AssetList.Count);
-            foreach (var packageAsset in AssetList)
+            AssetInfo[] result = new AssetInfo[AssetList.Count];
+            for (int i = 0; i < AssetList.Count; i++)
             {
+                var packageAsset = AssetList[i];
                 AssetInfo assetInfo = new AssetInfo(PackageName, packageAsset, null);
-                result.Add(assetInfo);
+                result[i] = assetInfo;
             }
-            return result.ToArray();
+            return result;
         }
 
         /// <summary>
@@ -259,7 +259,7 @@ namespace YooAsset
         /// </summary>
         public AssetInfo[] GetAssetInfosByTags(string[] tags)
         {
-            List<AssetInfo> result = new List<AssetInfo>(100);
+            List<AssetInfo> result = new List<AssetInfo>(AssetList.Count);
             foreach (var packageAsset in AssetList)
             {
                 if (packageAsset.HasTag(tags))

Assets/YooAsset/Runtime/ResourcePackage/PlayMode/EditorSimulateModeHelper.cs

@@ -10,7 +10,7 @@ namespace YooAsset
             buildParam.InvokeAssmeblyName = "YooAsset.Editor";
             buildParam.InvokeClassFullName = "YooAsset.Editor.AssetBundleSimulateBuilder";
             buildParam.InvokeMethodName = "SimulateBuild";
-            return PakcageInvokeBuilder.InvokeBuilder(buildParam);
+            return PackageInvokeBuilder.InvokeBuilder(buildParam);
         }
     }
 }

Assets/YooAsset/Runtime/ResourcePackage/PlayMode/PlayModeImpl.cs

@@ -104,44 +104,50 @@ namespace YooAsset
         }
 
         // 下载相关
-        ResourceDownloaderOperation IPlayMode.CreateResourceDownloaderByAll(int downloadingMaxNumber, int failedTryAgain, int timeout)
+        ResourceDownloaderOperation IPlayMode.CreateResourceDownloaderByAll(int downloadingMaxNumber, int failedTryAgain)
         {
             List<BundleInfo> downloadList = GetDownloadListByAll(ActiveManifest);
-            var operation = new ResourceDownloaderOperation(PackageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceDownloaderOperation(PackageName, downloadList, downloadingMaxNumber, failedTryAgain);
             return operation;
         }
-        ResourceDownloaderOperation IPlayMode.CreateResourceDownloaderByTags(string[] tags, int downloadingMaxNumber, int failedTryAgain, int timeout)
+        ResourceDownloaderOperation IPlayMode.CreateResourceDownloaderByTags(string[] tags, int downloadingMaxNumber, int failedTryAgain)
         {
             List<BundleInfo> downloadList = GetDownloadListByTags(ActiveManifest, tags);
-            var operation = new ResourceDownloaderOperation(PackageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceDownloaderOperation(PackageName, downloadList, downloadingMaxNumber, failedTryAgain);
             return operation;
         }
-        ResourceDownloaderOperation IPlayMode.CreateResourceDownloaderByPaths(AssetInfo[] assetInfos, bool recursiveDownload, int downloadingMaxNumber, int failedTryAgain, int timeout)
+        ResourceDownloaderOperation IPlayMode.CreateResourceDownloaderByPaths(AssetInfo[] assetInfos, bool recursiveDownload, int downloadingMaxNumber, int failedTryAgain)
         {
             List<BundleInfo> downloadList = GetDownloadListByPaths(ActiveManifest, assetInfos, recursiveDownload);
-            var operation = new ResourceDownloaderOperation(PackageName, downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceDownloaderOperation(PackageName, downloadList, downloadingMaxNumber, failedTryAgain);
             return operation;
         }
 
         // 解压相关
-        ResourceUnpackerOperation IPlayMode.CreateResourceUnpackerByAll(int upackingMaxNumber, int failedTryAgain, int timeout)
+        ResourceUnpackerOperation IPlayMode.CreateResourceUnpackerByAll(int upackingMaxNumber, int failedTryAgain)
         {
             List<BundleInfo> unpcakList = GetUnpackListByAll(ActiveManifest);
-            var operation = new ResourceUnpackerOperation(PackageName, unpcakList, upackingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceUnpackerOperation(PackageName, unpcakList, upackingMaxNumber, failedTryAgain);
             return operation;
         }
-        ResourceUnpackerOperation IPlayMode.CreateResourceUnpackerByTags(string[] tags, int upackingMaxNumber, int failedTryAgain, int timeout)
+        ResourceUnpackerOperation IPlayMode.CreateResourceUnpackerByTags(string[] tags, int upackingMaxNumber, int failedTryAgain)
         {
             List<BundleInfo> unpcakList = GetUnpackListByTags(ActiveManifest, tags);
-            var operation = new ResourceUnpackerOperation(PackageName, unpcakList, upackingMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceUnpackerOperation(PackageName, unpcakList, upackingMaxNumber, failedTryAgain);
             return operation;
         }
 
         // 导入相关
-        ResourceImporterOperation IPlayMode.CreateResourceImporterByFilePaths(string[] filePaths, int importerMaxNumber, int failedTryAgain, int timeout)
+        ResourceImporterOperation IPlayMode.CreateResourceImporterByFilePaths(string[] filePaths, int importingMaxNumber, int failedTryAgain)
         {
             List<BundleInfo> importerList = GetImporterListByFilePaths(ActiveManifest, filePaths);
-            var operation = new ResourceImporterOperation(PackageName, importerList, importerMaxNumber, failedTryAgain, timeout);
+            var operation = new ResourceImporterOperation(PackageName, importerList, importingMaxNumber, failedTryAgain);
+            return operation;
+        }
+        ResourceImporterOperation IPlayMode.CreateResourceImporterByFileInfos(ImportFileInfo[] fileInfos, int importingMaxNumber, int failedTryAgain)
+        {
+            List<BundleInfo> importerList = GetImporterListByFileInfos(ActiveManifest, fileInfos);
+            var operation = new ResourceImporterOperation(PackageName, importerList, importingMaxNumber, failedTryAgain);
             return operation;
         }
         #endregion
@@ -170,30 +176,30 @@ namespace YooAsset
             var packageBundle = ActiveManifest.GetMainPackageBundle(assetInfo.Asset);
             return CreateBundleInfo(packageBundle);
         }
-        BundleInfo[] IBundleQuery.GetDependBundleInfos(AssetInfo assetInfo)
+        List<BundleInfo> IBundleQuery.GetDependBundleInfos(AssetInfo assetInfo)
         {
             if (assetInfo == null || assetInfo.IsInvalid)
                 throw new Exception("Should never get here !");
 
             // 注意：如果清单里未找到资源包会抛出异常！
-            PackageBundle[] depends;
+            List<PackageBundle> depends;
             if (assetInfo.LoadMethod == AssetInfo.ELoadMethod.LoadAllAssets)
             {
                 var mainBundle = ActiveManifest.GetMainPackageBundle(assetInfo.Asset);
-                depends = ActiveManifest.GetAllDependencies(mainBundle);
+                depends = ActiveManifest.GetBundleAllDependencies(mainBundle);
             }
             else
             {
-                depends = ActiveManifest.GetAllDependencies(assetInfo.Asset);
+                depends = ActiveManifest.GetAssetAllDependencies(assetInfo.Asset);
             }
 
-            List<BundleInfo> result = new List<BundleInfo>(depends.Length);
+            List<BundleInfo> result = new List<BundleInfo>(depends.Count);
             foreach (var packageBundle in depends)
             {
                 BundleInfo bundleInfo = CreateBundleInfo(packageBundle);
                 result.Add(bundleInfo);
             }
-            return result.ToArray();
+            return result;
         }
         string IBundleQuery.GetMainBundleName(int bundleID)
         {
@@ -201,29 +207,6 @@ namespace YooAsset
             var packageBundle = ActiveManifest.GetMainPackageBundle(bundleID);
             return packageBundle.BundleName;
         }
-        string IBundleQuery.GetMainBundleName(AssetInfo assetInfo)
-        {
-            if (assetInfo == null || assetInfo.IsInvalid)
-                throw new Exception("Should never get here !");
-
-            // 注意：如果清单里未找到资源包会抛出异常！
-            var packageBundle = ActiveManifest.GetMainPackageBundle(assetInfo.Asset);
-            return packageBundle.BundleName;
-        }
-        string[] IBundleQuery.GetDependBundleNames(AssetInfo assetInfo)
-        {
-            if (assetInfo == null || assetInfo.IsInvalid)
-                throw new Exception("Should never get here !");
-
-            // 注意：如果清单里未找到资源包会抛出异常！
-            var depends = ActiveManifest.GetAllDependencies(assetInfo.Asset);
-            List<string> result = new List<string>(depends.Length);
-            foreach (var packageBundle in depends)
-            {
-                result.Add(packageBundle.BundleName);
-            }
-            return result.ToArray();
-        }
         #endregion
 
         /// <summary>
@@ -330,7 +313,7 @@ namespace YooAsset
                     checkList.Add(mainBundle);
 
                 // 注意：如果清单里未找到资源包会抛出异常！
-                PackageBundle[] mainDependBundles = manifest.GetAllDependencies(assetInfo.Asset);
+                List<PackageBundle> mainDependBundles = manifest.GetAssetAllDependencies(assetInfo.Asset);
                 foreach (var dependBundle in mainDependBundles)
                 {
                     if (checkList.Contains(dependBundle) == false)
@@ -346,7 +329,7 @@ namespace YooAsset
                         if (checkList.Contains(otherMainBundle) == false)
                             checkList.Add(otherMainBundle);
 
-                        PackageBundle[] otherDependBundles = manifest.GetAllDependencies(otherMainAsset);
+                        List<PackageBundle> otherDependBundles = manifest.GetAssetAllDependencies(otherMainAsset);
                         foreach (var dependBundle in otherDependBundles)
                         {
                             if (checkList.Contains(dependBundle) == false)
@@ -419,11 +402,56 @@ namespace YooAsset
             if (manifest == null)
                 return new List<BundleInfo>();
 
-            List<BundleInfo> result = new List<BundleInfo>();
-            foreach (var filePath in filePaths)
+            ImportFileInfo[] fileInfos = new ImportFileInfo[filePaths.Length];
+            for (int i = 0; i < filePaths.Length; i++)
             {
-                string fileName = System.IO.Path.GetFileName(filePath);
-                if (manifest.TryGetPackageBundleByFileName(fileName, out PackageBundle packageBundle))
+                ImportFileInfo fileInfo = new ImportFileInfo();
+                fileInfo.FilePath = filePaths[i];
+                fileInfos[i] = fileInfo;
+            }
+
+            return GetImporterListByFileInfos(manifest, fileInfos);
+        }
+        public List<BundleInfo> GetImporterListByFileInfos(PackageManifest manifest, ImportFileInfo[] fileInfos)
+        {
+            if (manifest == null)
+                return new List<BundleInfo>();
+
+            List<BundleInfo> result = new List<BundleInfo>();
+            foreach (var fileInfo in fileInfos)
+            {
+                string filePath = fileInfo.FilePath;
+                if (string.IsNullOrEmpty(filePath))
+                    continue;
+
+                PackageBundle packageBundle = null;
+                if (string.IsNullOrEmpty(fileInfo.BundleName) == false)
+                {
+                    if (manifest.TryGetPackageBundleByBundleName(fileInfo.BundleName, out packageBundle) == false)
+                    {
+                        YooLogger.Warning($"Not found package bundle, bundle name : {fileInfo.BundleName}");
+                        continue;
+                    }
+                }
+                else if (string.IsNullOrEmpty(fileInfo.BundleGUID) == false)
+                {
+                    if (manifest.TryGetPackageBundleByBundleGUID(fileInfo.BundleGUID, out packageBundle) == false)
+                    {
+                        YooLogger.Warning($"Not found package bundle, bundle guid : {fileInfo.BundleGUID}");
+                        continue;
+                    }
+                }
+                else
+                {
+                    string fileName = System.IO.Path.GetFileName(filePath);
+                    if (manifest.TryGetPackageBundleByFileName(fileName, out packageBundle) == false)
+                    {
+                        YooLogger.Warning($"Not found package bundle, file name : {fileName}");
+                        continue;
+                    }
+                }
+
+                if (packageBundle != null)
                 {
                     var fileSystem = GetBelongFileSystem(packageBundle);
                     if (fileSystem == null)
@@ -435,10 +463,6 @@ namespace YooAsset
                         result.Add(bundleInfo);
                     }
                 }
-                else
-                {
-                    YooLogger.Warning($"Not found package bundle, importer file path : {filePath}");
-                }
             }
             return result;
         }

Assets/YooAsset/Runtime/ResourcePackage/ResourcePackage.cs

@@ -361,21 +361,21 @@ namespace YooAsset
         /// 资源回收
         /// 说明：尝试卸载指定的资源
         /// </summary>
-        public void TryUnloadUnusedAsset(string location)
+        public void TryUnloadUnusedAsset(string location, int loopCount = 10)
         {
             DebugCheckInitialize();
             AssetInfo assetInfo = ConvertLocationToAssetInfo(location, null);
-            _resourceManager.TryUnloadUnusedAsset(assetInfo);
+            _resourceManager.TryUnloadUnusedAsset(assetInfo, loopCount);
         }
 
         /// <summary>
         /// 资源回收
         /// 说明：尝试卸载指定的资源
         /// </summary>
-        public void TryUnloadUnusedAsset(AssetInfo assetInfo)
+        public void TryUnloadUnusedAsset(AssetInfo assetInfo, int loopCount = 10)
         {
             DebugCheckInitialize();
-            _resourceManager.TryUnloadUnusedAsset(assetInfo);
+            _resourceManager.TryUnloadUnusedAsset(assetInfo, loopCount);
         }
         #endregion
 
@@ -496,7 +496,7 @@ namespace YooAsset
             if (bundleInfo.IsNeedDownloadFromRemote())
                 return true;
 
-            BundleInfo[] depends = _bundleQuery.GetDependBundleInfos(assetInfo);
+            List<BundleInfo> depends = _bundleQuery.GetDependBundleInfos(assetInfo);
             foreach (var depend in depends)
             {
                 if (depend.IsNeedDownloadFromRemote())
@@ -555,6 +555,7 @@ namespace YooAsset
 
         private RawFileHandle LoadRawFileInternal(AssetInfo assetInfo, bool waitForAsyncComplete, uint priority)
         {
+            assetInfo.LoadMethod = AssetInfo.ELoadMethod.LoadRawFile;
             var handle = _resourceManager.LoadRawFileAsync(assetInfo, priority);
             if (waitForAsyncComplete)
                 handle.WaitForAsyncComplete();
@@ -969,7 +970,7 @@ namespace YooAsset
         public ResourceDownloaderOperation CreateResourceDownloader(int downloadingMaxNumber, int failedTryAgain, int timeout = 60)
         {
             DebugCheckInitialize();
-            return _playModeImpl.CreateResourceDownloaderByAll(downloadingMaxNumber, failedTryAgain, timeout);
+            return _playModeImpl.CreateResourceDownloaderByAll(downloadingMaxNumber, failedTryAgain);
         }
 
         /// <summary>
@@ -982,7 +983,7 @@ namespace YooAsset
         public ResourceDownloaderOperation CreateResourceDownloader(string tag, int downloadingMaxNumber, int failedTryAgain, int timeout = 60)
         {
             DebugCheckInitialize();
-            return _playModeImpl.CreateResourceDownloaderByTags(new string[] { tag }, downloadingMaxNumber, failedTryAgain, timeout);
+            return _playModeImpl.CreateResourceDownloaderByTags(new string[] { tag }, downloadingMaxNumber, failedTryAgain);
         }
 
         /// <summary>
@@ -995,7 +996,7 @@ namespace YooAsset
         public ResourceDownloaderOperation CreateResourceDownloader(string[] tags, int downloadingMaxNumber, int failedTryAgain, int timeout = 60)
         {
             DebugCheckInitialize();
-            return _playModeImpl.CreateResourceDownloaderByTags(tags, downloadingMaxNumber, failedTryAgain, timeout);
+            return _playModeImpl.CreateResourceDownloaderByTags(tags, downloadingMaxNumber, failedTryAgain);
         }
 
         /// <summary>
@@ -1011,11 +1012,11 @@ namespace YooAsset
             DebugCheckInitialize();
             var assetInfo = ConvertLocationToAssetInfo(location, null);
             AssetInfo[] assetInfos = new AssetInfo[] { assetInfo };
-            return _playModeImpl.CreateResourceDownloaderByPaths(assetInfos, recursiveDownload, downloadingMaxNumber, failedTryAgain, timeout);
+            return _playModeImpl.CreateResourceDownloaderByPaths(assetInfos, recursiveDownload, downloadingMaxNumber, failedTryAgain);
         }
         public ResourceDownloaderOperation CreateBundleDownloader(string location, int downloadingMaxNumber, int failedTryAgain, int timeout = 60)
         {
-            return CreateBundleDownloader(location, false, downloadingMaxNumber, failedTryAgain, timeout);
+            return CreateBundleDownloader(location, false, downloadingMaxNumber, failedTryAgain);
         }
 
         /// <summary>
@@ -1035,11 +1036,11 @@ namespace YooAsset
                 var assetInfo = ConvertLocationToAssetInfo(location, null);
                 assetInfos.Add(assetInfo);
             }
-            return _playModeImpl.CreateResourceDownloaderByPaths(assetInfos.ToArray(), recursiveDownload, downloadingMaxNumber, failedTryAgain, timeout);
+            return _playModeImpl.CreateResourceDownloaderByPaths(assetInfos.ToArray(), recursiveDownload, downloadingMaxNumber, failedTryAgain);
         }
         public ResourceDownloaderOperation CreateBundleDownloader(string[] locations, int downloadingMaxNumber, int failedTryAgain, int timeout = 60)
         {
-            return CreateBundleDownloader(locations, false, downloadingMaxNumber, failedTryAgain, timeout);
+            return CreateBundleDownloader(locations, false, downloadingMaxNumber, failedTryAgain);
         }
 
         /// <summary>
@@ -1054,11 +1055,11 @@ namespace YooAsset
         {
             DebugCheckInitialize();
             AssetInfo[] assetInfos = new AssetInfo[] { assetInfo };
-            return _playModeImpl.CreateResourceDownloaderByPaths(assetInfos, recursiveDownload, downloadingMaxNumber, failedTryAgain, timeout);
+            return _playModeImpl.CreateResourceDownloaderByPaths(assetInfos, recursiveDownload, downloadingMaxNumber, failedTryAgain);
         }
         public ResourceDownloaderOperation CreateBundleDownloader(AssetInfo assetInfo, int downloadingMaxNumber, int failedTryAgain, int timeout = 60)
         {
-            return CreateBundleDownloader(assetInfo, false, downloadingMaxNumber, failedTryAgain, timeout);
+            return CreateBundleDownloader(assetInfo, false, downloadingMaxNumber, failedTryAgain);
         }
 
         /// <summary>
@@ -1072,11 +1073,11 @@ namespace YooAsset
         public ResourceDownloaderOperation CreateBundleDownloader(AssetInfo[] assetInfos, bool recursiveDownload, int downloadingMaxNumber, int failedTryAgain, int timeout = 60)
         {
             DebugCheckInitialize();
-            return _playModeImpl.CreateResourceDownloaderByPaths(assetInfos, recursiveDownload, downloadingMaxNumber, failedTryAgain, timeout);
+            return _playModeImpl.CreateResourceDownloaderByPaths(assetInfos, recursiveDownload, downloadingMaxNumber, failedTryAgain);
         }
         public ResourceDownloaderOperation CreateBundleDownloader(AssetInfo[] assetInfos, int downloadingMaxNumber, int failedTryAgain, int timeout = 60)
         {
-            return CreateBundleDownloader(assetInfos, false, downloadingMaxNumber, failedTryAgain, timeout);
+            return CreateBundleDownloader(assetInfos, false, downloadingMaxNumber, failedTryAgain);
         }
         #endregion
 
@@ -1089,7 +1090,7 @@ namespace YooAsset
         public ResourceUnpackerOperation CreateResourceUnpacker(int unpackingMaxNumber, int failedTryAgain)
         {
             DebugCheckInitialize();
-            return _playModeImpl.CreateResourceUnpackerByAll(unpackingMaxNumber, failedTryAgain, int.MaxValue);
+            return _playModeImpl.CreateResourceUnpackerByAll(unpackingMaxNumber, failedTryAgain);
         }
 
         /// <summary>
@@ -1101,7 +1102,7 @@ namespace YooAsset
         public ResourceUnpackerOperation CreateResourceUnpacker(string tag, int unpackingMaxNumber, int failedTryAgain)
         {
             DebugCheckInitialize();
-            return _playModeImpl.CreateResourceUnpackerByTags(new string[] { tag }, unpackingMaxNumber, failedTryAgain, int.MaxValue);
+            return _playModeImpl.CreateResourceUnpackerByTags(new string[] { tag }, unpackingMaxNumber, failedTryAgain);
         }
 
         /// <summary>
@@ -1113,7 +1114,7 @@ namespace YooAsset
         public ResourceUnpackerOperation CreateResourceUnpacker(string[] tags, int unpackingMaxNumber, int failedTryAgain)
         {
             DebugCheckInitialize();
-            return _playModeImpl.CreateResourceUnpackerByTags(tags, unpackingMaxNumber, failedTryAgain, int.MaxValue);
+            return _playModeImpl.CreateResourceUnpackerByTags(tags, unpackingMaxNumber, failedTryAgain);
         }
         #endregion
 
@@ -1128,7 +1129,20 @@ namespace YooAsset
         public ResourceImporterOperation CreateResourceImporter(string[] filePaths, int importerMaxNumber, int failedTryAgain)
         {
             DebugCheckInitialize();
-            return _playModeImpl.CreateResourceImporterByFilePaths(filePaths, importerMaxNumber, failedTryAgain, int.MaxValue);
+            return _playModeImpl.CreateResourceImporterByFilePaths(filePaths, importerMaxNumber, failedTryAgain);
+        }
+
+        /// <summary>
+        /// 创建资源导入器
+        /// 注意：资源信息里需要指定BundleName或BundleGUID！
+        /// </summary>
+        /// <param name="fileInfos">资源信息列表</param>
+        /// <param name="importerMaxNumber">同时导入的最大文件数</param>
+        /// <param name="failedTryAgain">导入失败的重试次数</param>
+        public ResourceImporterOperation CreateResourceImporter(ImportFileInfo[] fileInfos, int importerMaxNumber, int failedTryAgain)
+        {
+            DebugCheckInitialize();
+            return _playModeImpl.CreateResourceImporterByFileInfos(fileInfos, importerMaxNumber, failedTryAgain);
         }
         #endregion
 

Assets/YooAsset/Runtime/Services/IManifestProcessServices.cs

@@ -0,0 +1,14 @@
+
+namespace YooAsset
+{
+    /// <summary>
+    /// 资源清单文件处理服务接口
+    /// </summary>
+    public interface IManifestProcessServices
+    {
+        /// <summary>
+        /// 处理资源清单（压缩或加密）
+        /// </summary>
+        byte[] ProcessManifest(byte[] fileData);
+    }
+}

Assets/YooAsset/Runtime/Services/IManifestRestoreServices.cs

@@ -0,0 +1,14 @@
+
+namespace YooAsset
+{
+    /// <summary>
+    /// 资源清单文件处理服务接口
+    /// </summary>
+    public interface IManifestRestoreServices
+    {
+        /// <summary>
+        /// 还原资源清单（解压或解密）
+        /// </summary>
+        byte[] RestoreManifest(byte[] fileData);
+    }
+}

Assets/YooAsset/Runtime/Services/IManifestRestoreServices.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: b17060f9f11771e4cbcb0201fce446e6
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/Services/IManifestServices.cs

@@ -1,19 +0,0 @@
-
-namespace YooAsset
-{
-    /// <summary>
-    /// 资源清单文件处理服务接口
-    /// </summary>
-    public interface IManifestServices
-    {
-        /// <summary>
-        /// 处理资源清单（压缩和加密）
-        /// </summary>
-        byte[] ProcessManifest(byte[] fileData);
-        
-        /// <summary>
-        /// 还原资源清单（解压和解密）
-        /// </summary>
-        byte[] RestoreManifest(byte[] fileData);
-    }
-}

Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 8c5a1726d94498e4cbe30f5f510cc796
+guid: 36626e333f5e25c4581bc91db0189714
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}