NSURLConnection still calls delegate AFTER cancel method has been called

Question

Having a problem with NSURLConnection, if I create a NSURLConnection and call [connection connectionWithRequest] let it load a little then call [connection cancel] most of t

Answer 1

I have not yet run into this problem, but this could also work without tying up your delegate object:

Since all delegate methods receive the calling Connection object as a parameter and you also know your actual active Connection object (or nil), simply ignore the delegation actions by comparing the two objects. This way a cancelled "ghost" Connection object can still call the delegate but not interfere with its internals.

- (void) connection:(NSURLConnection*) connection didReceiveData:(NSData*) data
{
    if(connection != _URLConnection){return;}
    ...
    [_incomingData appendData:data];
    ...
}

where _URLConnection is a property in your delegate set to an active Connection, or nil.