2.7 KiB
Create a custom wait operation
To create a custom operation, extend the AsyncOperationBase class and override its virtual methods.
You can pass the derived operation to the ResourceManager.StartOperation method to start the operation and receive an AsyncOperationHandle struct. The ResourceManager registers operations started this way.
Execute a custom operation
The ResourceManager invokes the AsyncOperationBase.Execute method for the custom operation once the optional dependent operation completes.
Completion handling
When the custom operation completes, call AsyncOperationBase.Complete on the custom operation object. You can call this in the Execute method or defer it to outside the call. AsyncOperationBase.Complete notifies the ResourceManager that the operation has finished. The ResourceManager invokes the associated AsyncOperationHandle.Completed events for the relevant instances of the custom operation.
Terminate the custom operation
ResourceManager invokes the AsyncOperationBase.Destroy method for your custom operation when the operation AsyncOperationBase.ReferenceCount reaches zero. AsyncOperationBase.ReferenceCount is decreased when the AsyncOperationHandle that references it is released using Addressables.Release or when AsyncOperationBase.DecrementReferenceCount is called by a custom operation internally. AsyncOperationBase.Destroy is where you should release any memory or resources associated with your custom operation.