Objective C: Potential Memory Leak in code

I ran the 'Analyze' on my code and the result shows a potential memory leak on the following part of my code

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];

//Potential memory leak in code below
[[NSURLConnection alloc] initWithRequest:request delegate:self];

I am not sure how to stop this leak. I tried to add a 'autorelease' to the back but that caused a crash. Any advise on this开发者_运维技巧?

EDIT:

Screenshot of the leak message

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Release the connection object on success or failure. It needs to stay alive till then. So put a release in both connection:didFailWithError: and connectionDidFinishLoading: delegate methods. Only one will get called. So retain-release will balance out.

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Your call to alloc on NSURLConnection is returning an object with a reference count of 1. Your code should be as following:

NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection start]; // This is optional.  It should begin the request after you alloc it

After you are done with the object, you need to explicitly call:

[connection release];

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Use the static method

[NSURLConnection connectionWithRequest:request delegate:self];

instead of

[[NSURLConnection alloc] initWithRequest:request delegate:self];

of course there is NO need to release the connection object in it's delegate methods.

Or if you use the second method, release the NSURLConnection object in both delegate methods:

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error 
- (void)connectionDidFinishLoading:(NSURLConnection *)connection 

and can ignore the memory leak warning message.