Does AFNetworking have backgrounding support?

EDIT: As of AFNetworking 1.0RC1, this is an explicit feature. AFURLConnectionOperation now has the method setShouldExecuteAsBackgroundTaskWithExpirationHandler:, which transparently manages all of this for you.

It's an implicit feature, so I didn't really think about advertising it. All you'd need to do is:

- (void)applicationWillResignActive:(UIApplication *)application {
    __block UIBackgroundTaskIdentifier backgroundTaskIdentifier = [application beginBackgroundTaskWithExpirationHandler:^(void) {
        [application endBackgroundTask:backgroundTaskIdentifier];
        [[YourRestClient sharedClient] cancelAllHTTPOperations];
    }];
}

Or, if you manage your operations in your own NSOperationQueue, just -cancelAllOperations here instead.