HttpManagerSingleton

gistfile1.m

+ (void)sendAsynchronousRequest:(NSURLRequest *)request queue:(NSOperationQueue *)queue completionHandler:(void (^)(NSURLResponse*, NSData*, NSError*))handler {
	[NSURLConnection request:request queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
		if (err) {
			[self showRetryDialog:^(bool retryClicked, bool cancelClicked) {
				if (retryClicked) {
					[self sendAsynchronousRequest:request queue:queue completionHandler:handler];
				}
				else {
					handler(nil, nil, nil);
				}
			}
		}
		else {
			handler(response, data, error);
		}
	}];
}

+ (void)showRetryDialog:(void (^)(bool, bool))handler {
	// When clicked retry:
	handler(true, false);

	// When cancel clicked
	handler(false, true);
}

// Ornek kullanım:
[HttpManagerSingleton sendAsynchronousRequest:request queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
	if (response == nil) {
		NSLog("Cancelled.");
	}
	else {
		NSLog("Succeeded.");
	}
}];