Class ResourceManager

Entry point for ResourceManager API

Inheritance

System.Object

ResourceManager

Namespace: UnityEngine.ResourceManagement

Syntax

public class ResourceManager : IDisposable

Constructors

ResourceManager(IAllocationStrategy)

Constructor for the resource manager.

Declaration

public ResourceManager(IAllocationStrategy alloc = null)

Parameters

Type	Name	Description
IAllocationStrategy	alloc	The allocation strategy to use.

Properties

Allocator

The allocation strategy object.

Declaration

public IAllocationStrategy Allocator { get; set; }

Property Value

Type	Description
IAllocationStrategy

CertificateHandlerInstance

The CertificateHandler instance object.

Declaration

public CertificateHandler CertificateHandlerInstance { get; set; }

Property Value

Type	Description
CertificateHandler

ExceptionHandler

Global exception handler. This will be called whenever an IAsyncOperation.OperationException is set to a non-null value.

Declaration

public static Action<AsyncOperationHandle, Exception> ExceptionHandler { get; set; }

Property Value

Type	Description
System.Action<AsyncOperationHandle, System.Exception>

ResourceProviders

Gets the list of configured IResourceProvider objects. Resource Providers handle load and release operations for IResourceLocation objects.

Declaration

public IList<IResourceProvider> ResourceProviders { get; }

Property Value

Type	Description
System.Collections.Generic.IList<IResourceProvider>	The resource providers list.

Methods

Acquire(AsyncOperationHandle)

Increment reference count of operation handle.

Declaration

public void Acquire(AsyncOperationHandle handle)

Parameters

Type	Name	Description
AsyncOperationHandle	handle	The handle to the resource to increment the reference count for.

AddUpdateReceiver(IUpdateReceiver)

Add an update reveiver.

Declaration

public void AddUpdateReceiver(IUpdateReceiver receiver)

Parameters

Type	Name	Description
IUpdateReceiver	receiver	The object to add. The Update method will be called until the object is removed.

CleanupSceneInstances()

Declaration

public void CleanupSceneInstances()

ClearDiagnosticsCallback()

Clears out the diagnostics callback handler.

Declaration

public void ClearDiagnosticsCallback()

CreateChainOperation<TObject>(AsyncOperationHandle, Func<AsyncOperationHandle, AsyncOperationHandle<TObject>>)

Create a chain operation to handle dependencies.

Declaration

public AsyncOperationHandle<TObject> CreateChainOperation<TObject>(AsyncOperationHandle dependentOp, Func<AsyncOperationHandle, AsyncOperationHandle<TObject>> callback)

Parameters

Type	Name	Description
AsyncOperationHandle	dependentOp	The dependency operation.
System.Func<AsyncOperationHandle, AsyncOperationHandle<TObject>>	callback	The callback method that will create the dependent operation from the dependency operation.

Returns

Type	Description
AsyncOperationHandle<TObject>	The operation handle.

Type Parameters

Name	Description
TObject	The type of operation handle to return.

CreateChainOperation<TObject, TObjectDependency>(AsyncOperationHandle<TObjectDependency>, Func<AsyncOperationHandle<TObjectDependency>, AsyncOperationHandle<TObject>>)

Create a chain operation to handle dependencies.

Declaration

public AsyncOperationHandle<TObject> CreateChainOperation<TObject, TObjectDependency>(AsyncOperationHandle<TObjectDependency> dependentOp, Func<AsyncOperationHandle<TObjectDependency>, AsyncOperationHandle<TObject>> callback)

Parameters

Type	Name	Description
AsyncOperationHandle<TObjectDependency>	dependentOp	The dependency operation.
System.Func<AsyncOperationHandle<TObjectDependency>, AsyncOperationHandle<TObject>>	callback	The callback method that will create the dependent operation from the dependency operation.

Returns

Type	Description
AsyncOperationHandle<TObject>	The operation handle.

Type Parameters

Name	Description
TObject	The type of operation handle to return.
TObjectDependency	The type of the dependency operation.

CreateCompletedOperation<TObject>(TObject, String)

Creates an operation that has already completed with a specified result and error message./>.

Declaration

public AsyncOperationHandle<TObject> CreateCompletedOperation<TObject>(TObject result, string errorMsg)

Parameters

Type	Name	Description
TObject	result	The result that the operation will provide.
System.String	errorMsg	The error message if the operation should be in the failed state. Otherwise null or empty string.

Returns

Type	Description
AsyncOperationHandle<TObject>

Type Parameters

Name	Description
TObject	Object type.

Dispose()

Disposes internal resources used by the resource manager

Declaration

public void Dispose()

GetResourceProvider(Type, IResourceLocation)

Gets the appropriate IResourceProvider for the given location and type.

Declaration

public IResourceProvider GetResourceProvider(Type t, IResourceLocation location)

Parameters

Type	Name	Description
System.Type	t
IResourceLocation	location	The resource location.

Returns

Type	Description
IResourceProvider	The resource provider. Or null if an appropriate provider cannot be found

ProvideInstance(IInstanceProvider, IResourceLocation, InstantiationParameters)

Asynchronouslly instantiate a prefab (GameObject) at the specified location.

Declaration

public AsyncOperationHandle<GameObject> ProvideInstance(IInstanceProvider provider, IResourceLocation location, InstantiationParameters instantiateParameters)

Parameters

Type	Name	Description
IInstanceProvider	provider	An implementation of IInstanceProvider that will be used to instantiate and destroy the GameObject.
IResourceLocation	location	Location of the prefab.
InstantiationParameters	instantiateParameters	A struct containing the parameters to pass the the Instantiation call.

Returns

Type	Description
AsyncOperationHandle<GameObject>	Async operation that will complete when the prefab is instantiated.

ProvideResource<TObject>(IResourceLocation)

Load the TObject at the specified location.

Declaration

public AsyncOperationHandle<TObject> ProvideResource<TObject>(IResourceLocation location)

Parameters

Type	Name	Description
IResourceLocation	location	Location to load.

Returns

Type	Description
AsyncOperationHandle<TObject>	An async operation.

Type Parameters

Name	Description
TObject	Object type to load.

ProvideResources<TObject>(IList<IResourceLocation>, Action<TObject>)

Asynchronously load all objects in the given collection of locations.

Declaration

public AsyncOperationHandle<IList<TObject>> ProvideResources<TObject>(IList<IResourceLocation> locations, Action<TObject> callback = null)

Parameters

Type	Name	Description
System.Collections.Generic.IList<IResourceLocation>	locations	locations to load.
System.Action<TObject>	callback	This callback will be invoked once for each object that is loaded.

Returns

Type	Description
AsyncOperationHandle<System.Collections.Generic.IList<TObject>>	An async operation that will complete when all individual async load operations are complete.

Type Parameters

Name	Description
TObject	Object type to load.

ProvideScene(ISceneProvider, IResourceLocation, LoadSceneMode, Boolean, Int32)

Load a scene at a specificed resource location.

Declaration

public AsyncOperationHandle<SceneInstance> ProvideScene(ISceneProvider sceneProvider, IResourceLocation location, LoadSceneMode loadMode, bool activateOnLoad, int priority)

Parameters

Type	Name	Description
ISceneProvider	sceneProvider	The scene provider instance.
IResourceLocation	location	The location of the scene.
LoadSceneMode	loadMode	The load mode for the scene.
System.Boolean	activateOnLoad	If false, the scene will be loaded in the background and not activated when complete.
System.Int32	priority	The priority for the load operation.

Returns

Type	Description
AsyncOperationHandle<SceneInstance>	Async operation handle that will complete when the scene is loaded. If activateOnLoad is false, then Activate() will need to be called on the SceneInstance returned.

RegisterDiagnosticCallback(Action<AsyncOperationHandle, ResourceManager.DiagnosticEventType, Int32, Object>)

Register a handler for diagnostic events.

Declaration

public void RegisterDiagnosticCallback(Action<AsyncOperationHandle, ResourceManager.DiagnosticEventType, int, object> func)

Parameters

Type	Name	Description
System.Action<AsyncOperationHandle, ResourceManager.DiagnosticEventType, System.Int32, System.Object>	func	The event handler function.

Release(AsyncOperationHandle)

Release the operation associated with the specified handle

Declaration

public void Release(AsyncOperationHandle handle)

Parameters

Type	Name	Description
AsyncOperationHandle	handle	The handle to release.

ReleaseScene(ISceneProvider, AsyncOperationHandle<SceneInstance>)

Release a scene.

Declaration

public AsyncOperationHandle<SceneInstance> ReleaseScene(ISceneProvider sceneProvider, AsyncOperationHandle<SceneInstance> sceneLoadHandle)

Parameters

Type	Name	Description
ISceneProvider	sceneProvider	The scene provider.
AsyncOperationHandle<SceneInstance>	sceneLoadHandle	The operation handle used to load the scene.

Returns

Type	Description
AsyncOperationHandle<SceneInstance>	An operation handle for the unload.

RemoveUpdateReciever(IUpdateReceiver)

Remove update receiver.

Declaration

public void RemoveUpdateReciever(IUpdateReceiver receiver)

Parameters

Type	Name	Description
IUpdateReceiver	receiver	The object to remove.

StartOperation<TObject>(AsyncOperationBase<TObject>, AsyncOperationHandle)

Registers an operation with the ResourceManager. The operation will be executed when the dependency completes. This should only be used when creating custom operations.

Declaration

public AsyncOperationHandle<TObject> StartOperation<TObject>(AsyncOperationBase<TObject> operation, AsyncOperationHandle dependency)

Parameters

Type	Name	Description
AsyncOperationBase<TObject>	operation	The custom AsyncOperationBase object
AsyncOperationHandle	dependency	Execution of the operation will not occur until this handle completes. A default handle can be passed if no dependency is required.

Returns

Type	Description
AsyncOperationHandle<TObject>	The AsyncOperationHandle used to access the result and status of the operation.

Type Parameters

Name	Description
TObject	Object type associated with this operation.