Package apple.foundation.protocol

Interface NSURLSessionDownloadDelegate

All Superinterfaces:

NSURLSessionDelegate, NSURLSessionTaskDelegate

public interface NSURLSessionDownloadDelegate
extends NSURLSessionTaskDelegate

Messages related to the operation of a task that writes data to a file and notifies the delegate upon completion.

Nested Class Summary

Nested classes/interfaces inherited from interface apple.foundation.protocol.NSURLSessionDelegate

NSURLSessionDelegate.Block_URLSessionDidReceiveChallengeCompletionHandler

Nested classes/interfaces inherited from interface apple.foundation.protocol.NSURLSessionTaskDelegate

NSURLSessionTaskDelegate.Block_URLSessionTaskDidReceiveChallengeCompletionHandler, NSURLSessionTaskDelegate.Block_URLSessionTaskNeedNewBodyStream, NSURLSessionTaskDelegate.Block_URLSessionTaskWillBeginDelayedRequestCompletionHandler, NSURLSessionTaskDelegate.Block_URLSessionTaskWillPerformHTTPRedirectionNewRequestCompletionHandler

Method Summary

Modifier and Type	Method	Description
void	URLSessionDownloadTaskDidFinishDownloadingToURL(NSURLSession session, NSURLSessionDownloadTask downloadTask, NSURL location)	Sent when a download task that has completed a download.
default void	URLSessionDownloadTaskDidResumeAtOffsetExpectedTotalBytes(NSURLSession session, NSURLSessionDownloadTask downloadTask, long fileOffset, long expectedTotalBytes)	Sent when a download has been resumed.
default void	URLSessionDownloadTaskDidWriteDataTotalBytesWrittenTotalBytesExpectedToWrite(NSURLSession session, NSURLSessionDownloadTask downloadTask, long bytesWritten, long totalBytesWritten, long totalBytesExpectedToWrite)	Sent periodically to notify the delegate of download progress.

Methods inherited from interface apple.foundation.protocol.NSURLSessionDelegate

URLSessionDidBecomeInvalidWithError, URLSessionDidFinishEventsForBackgroundURLSession, URLSessionDidReceiveChallengeCompletionHandler

Methods inherited from interface apple.foundation.protocol.NSURLSessionTaskDelegate

URLSessionTaskDidCompleteWithError, URLSessionTaskDidFinishCollectingMetrics, URLSessionTaskDidReceiveChallengeCompletionHandler, URLSessionTaskDidSendBodyDataTotalBytesSentTotalBytesExpectedToSend, URLSessionTaskIsWaitingForConnectivity, URLSessionTaskNeedNewBodyStream, URLSessionTaskWillBeginDelayedRequestCompletionHandler, URLSessionTaskWillPerformHTTPRedirectionNewRequestCompletionHandler

Method Detail

URLSessionDownloadTaskDidFinishDownloadingToURL

void URLSessionDownloadTaskDidFinishDownloadingToURL(NSURLSession session,
                                                     NSURLSessionDownloadTask downloadTask,
                                                     NSURL location)

Sent when a download task that has completed a download. The delegate should copy or move the file at the given location to a new location as it will be removed when the delegate message returns. URLSession:task:didCompleteWithError: will still be called.

URLSessionDownloadTaskDidResumeAtOffsetExpectedTotalBytes

default void URLSessionDownloadTaskDidResumeAtOffsetExpectedTotalBytes(NSURLSession session,
                                                                       NSURLSessionDownloadTask downloadTask,
                                                                       long fileOffset,
                                                                       long expectedTotalBytes)

Sent when a download has been resumed. If a download failed with an error, the -userInfo dictionary of the error will contain an NSURLSessionDownloadTaskResumeData key, whose value is the resume data.

URLSessionDownloadTaskDidWriteDataTotalBytesWrittenTotalBytesExpectedToWrite

default void URLSessionDownloadTaskDidWriteDataTotalBytesWrittenTotalBytesExpectedToWrite(NSURLSession session,
                                                                                          NSURLSessionDownloadTask downloadTask,
                                                                                          long bytesWritten,
                                                                                          long totalBytesWritten,
                                                                                          long totalBytesExpectedToWrite)

Sent periodically to notify the delegate of download progress.