|Nov 22, 2012, 12:03 PM||#1|
Uploading file using NSURLConnection
In my app developed in Lion using XCode, I need to determine the speed of the internet connection (upload speed) and for that I upload an file using NSURLConnection.
I extracted the code for formatting the xml and uploading from
I am using the async version of NSURLConnection to free up the main UI and also as I want the progress of the uploading process.
I have implemented the delegate methods provided by NSURLConnection they are.
//1. Method fired after upload is complete along with response code. - (void)connection:(NSURLConnection *)theConnection didReceiveResponse:(NSURLResponse *)response //2. Method fired when upload process fails. - (void)connection:(NSURLConnection *)theConnection didFailWithError:(NSError *)error //3. Method fired when upload process is completed. - (void)connectionDidFinishLoading:(NSURLConnection *)theConnection //4. Fired periodically indicating no. of bytes sent/uploaded to the server (can be used to determine upload speed). - (void)connection:(NSURLConnection *)connection didSendBodyData:(NSInteger)bytesWritten totalBytesWritten:(NSInteger)totalBytesWritten totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite
However during the end of the upload process with an invalid upload URL(when totalBytesWritten == totalBytesExpectedToWrite), the method 1. fires with an error http 404 indicating that the upload process has failed.
Is there a mechanism by which I can find whether the uploading of is being carried out successfully during the actual uploading of the file rather than waiting till the entire file is uploaded?.
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