Im using NSURLSession dataTask with NSOoperationQueue to download a file with multiple connections for faster speed. Creating operations from NSURLSession and passing them to OperationQueue. Now my struggle here is, as i see in apple docs, only downloadTask has progress tracking, is it even possible to track the bytes received using NSURLSession dataTask ?
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Juan Catalan
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user2125726
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2 Answers
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per Apple documentation https://developer.apple.com/library/ios/documentation/Foundation/Reference/NSURLSessionTaskDelegate_protocol/index.html#//apple_ref/occ/intfm/NSURLSessionTaskDelegate/URLSession:task:didSendBodyData:totalBytesSent:totalBytesExpectedToSend: the delegate is
- (void)URLSession:(NSURLSession *)session
task:(NSURLSessionTask *)task
didSendBodyData:(int64_t)bytesSent
totalBytesSent:(int64_t)totalBytesSent
totalBytesExpectedToSend:(int64_t)totalBytesExpectedToSend
URLSession(_:dataTask:didReceiveData:) is not being called, at least not on ios 9.0, otherwise Stefan's answer applies
Anton Tropashko
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Thank you! helped me a lot. – Asi Givati Nov 07 '16 at 08:24
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Configure your NSURLSession to have a delegate that implements the NSURLSessionDataDelegate protocol.
In the delegate, implement the URLSession(_:dataTask:didReceiveData:) method, wich will be called when data comes in. Which is a good place to update for example a progress bar.
Stefan Arentz
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Thanks @StefanArentz, could you please explain more in depth on how do i have to create the delegate ? I know how to configure the NSURLSession to use a delegate, but im not sure how to create the delegate itself. thanks – user2125726 May 28 '15 at 15:31