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PONSURLConnectionDownloadDelegate destinationURL
 

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    <p>I am currently developing an iPad iOS 6 Application which uses async downloads. To receive progress information i used the delegate <code>NSURLConnectionDownloadDelegate</code>. The download and the progress received by </p> <pre><code>– connection:didWriteData:totalBytesWritten:expectedTotalBytes: </code></pre> <p>works just fine.</p> <p>However once the download is finished, i do not know how to extract the data out of the <code>NSURL</code> <code>destinationURL</code> provided by the delegatemethod</p> <pre><code>– connectionDidFinishDownloading:destinationURL: </code></pre> <p>The destinationURL received in String looks like "<code>/private/var/mobile/Applications/7CB3B194-9E79-4F0B-ACFD-7B87AA8C7BAF/tmp/filename.mp4</code>"</p> <p>Then i try to extract the data from the given NSURL:</p> <pre><code>NSData *data = [[NSData alloc] initWithContentsOfURL:destinationURL]; </code></pre> <p>The data however is empty...</p> <pre><code>NSLog(@"data Size: %@", data.length); //prints out 0 </code></pre> <p>Has someone the same issue by using <code>NSURLConnectionDownloadDelegate</code>? Any ideas how to solve?</p> <hr> <p>Edit: I tried to copy the file first, and then use <code>[NSData initWithContentsOFFile]</code> as suggested, but the data size is still 0.</p> <pre><code>- (void) connectionDidFinishDownloading:(NSURLConnection *)connection destinationURL:(NSURL *)destinationURL { [[NSFileManager defaultManager] copyItemAtPath:destinationURL.path toPath:DEST_PATH error:nil]; NSData *data = [[NSData alloc] initWithContentsOfFile:DEST_PATH]; NSLog(@"data Size: %i", data.length); //still returns 0.. } </code></pre> <hr> <p>Edit2: I can extract the <code>NSData</code> when using <code>sendAsynchronousRequest</code> method of <code>NSURLConnection</code>. However like this, i am not able to determine the progress of the download...</p> <pre><code>[NSURLConnection sendAsynchronousRequest:theRequest queue:[[NSOperationQueue alloc] init] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error){ if (data){ NSLog(@"Size of the data: %i Bytes(s)", data.length); //works fine [data writeToFile:DEST_PATH atomically:YES]; //From this point i can use the file at DEST_PATH NSLog(@"Succeeded!"); } else if (error) NSLog(@"%@",error); }]; </code></pre>
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    1. COwhat if you copy the file to your content path and try to open it there?
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    2. COTry this answer: http://stackoverflow.com/questions/12582849/nsurlconnectiondownloaddelegate-expectedtotalbytes-zero-in-ios-6
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    3. COHave you looked at the answer from the previous comment?
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