cancelImageRequest(_:)
Cancels an asynchronous request
Declaration
func cancelImageRequest(_ requestID: PHImageRequestID)Parameters
- requestID:
The numeric identifier of the request to be canceled.
Discussion
When you perform an asynchronous request for image data using the requestImage(for:targetSize:contentMode:options:resultHandler:) method, or for a video object using one of the methods listed in Requesting Video Objects, the image manager returns a numeric identifier for the request. To cancel the request before it completes, provide this identifier when calling the cancelImageRequest(_:) method.