Hello all,
I'm hoping you can help me with a question about threads and delegates.
I don't have the terminology to pose the question suscinctly so I'll do so by
reference to the program which gave rise to it.
I have an object which implements a number of delegate methods of
NSURLConnection:
- (void)connection: didReceiveResponse:
- (void)connection: didReceiveData:
- (void)connection: didFailWithError:
- (void)connectionDidFinishLoading:
The object also contains a custom method makeConnection which creates an
NSURLRequest and makes a call to NSURLConnection
NSURLConnection * myConnection = [[NSURLConnection alloc]
initWithRequest:myRequest delegate:self];
after which we test myConnection and return.
My code is an almost perfect copy of the example provided in
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/URLLoadingSystem/Tasks/UsingNSURLConnection.html
I got the code to execute perfectly and then put the makeConnection method on a
separate thread using NSInvocationOperation and NSOperationQueue. What happened
was that I could not get any of the delegates to be called.
Now my question:
1. Why do they not get called?
2. How does one create a situation where they do get called?
Thanks in advance
Julius
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