NSURLConnection delegate methods are not called

Question

I am trying to create a simple NSURLConnection to communicate with a server using a GET request. Connection works well, but delegates methods of NSURLConnection are never ca

Answer 1

Are you calling this on a background thread? If you are performing this on a background thread, the thread is probably exiting before the delegates can be called.

Answer 2

Try running the operation on main thread:

NSURLConnection * connection = [[NSURLConnection alloc] 
                                initWithRequest:request
                                       delegate:self startImmediately:NO];

[connection scheduleInRunLoop:[NSRunLoop mainRunLoop] 
                      forMode:NSDefaultRunLoopMode];
[connection start];

Answer 3

Try to check length for the received response it should not getting 0 byte of data.

Answer 4

Apart from checking if the request is called from the main thread, you can check if you give back execution time to the system (if you exit "main"). I had some test code that would stay in a loop until the delegate was called : it would never be called, because the system needs to do stuff in order for the delegate to be called, in the main thread.