nsoperation

I am making a JSON request with AFNetworking and then call [operation waitUntilFinished] to wait on the operation and the success or failure blocks. But, it seems to fall right though - in terms of the log messages, I get "0", "3", "1" instead of "0", "1", "3" NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://google.com"]]; AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url]; httpClient.parameterEncoding = AFFormURLParameterEncoding; NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:@"query", @"q", nil]; NSMutableURLRequest *request =

I am trying to implement asynchronous url requests in a particular function, I want all these requests to complete and then do a particular action but the action precedes the requests i.e, it is getting called before the requests complete. dispatch_queue_t fetchQ = dispatch_queue_create("Featured Doc Downloader", NULL); dispatch_async(fetchQ, ^{ [self myAsyncMultipleURLRequestFunction]; dispatch_sync(dispatch_get_main_queue(), ^{ [self updateUIFunction]; }); }); -(void)myAsyncMultipleURLRequestFunction { for (int i=0; i<count; i++) { NSURLConnection *loginConnection = [[NSURLConnection alloc]

I am subclassing NSOperation in Swift and need to override the isExecuting and isFinished properties since I am overriding the start method. The problem I run into is how to preserve key-value observing (KVO) while also being able to override these properties. Normally in Obj-C this would be rather easy to redeclare the properties as readwrite in the class extension JSONOperation () definition. However, I don't see this same capability in Swift. Example: class JSONOperation : NSOperation, NSURLConnectionDelegate { var executing : Bool { get { return super.executing } set { super.executing } //

Rob provided a great Objective-C solution for subclassing NSOperation to achieve a serial queuing mechanism for SKAction objects. I implemented this successfully in my own Swift project. import SpriteKit class ActionOperation : NSOperation { let _node: SKNode // The sprite node on which an action is to be performed let _action: SKAction // The action to perform on the sprite node var _finished = false // Our read-write mirror of the super's read-only finished property var _executing = false // Our read-write mirror of the super's read-only executing property /// Override read-only superclass

I'm using NSOperationQueue , and NSOperation for running some function on background click. But I want to be able, when user clicks some button, stop that Operation. How can I do it? Something like, [currentoperation stop]; Cancel - won't work me. I want to stop immediately. Thanks You should be calling the -cancel method, and the operation itself has to support being cancelled by monitoring the isCancelled property/keypath and safely stopping when its value becomes YES . If the NSOperation is your own, you will probably have to create a custom subclass to implement this functionality. You

I am using AFNetworking in my application and I am attempting to implement a "Tap To Cancel" feature in my progress HUD. I have a singleton class that manages all of the HTTP requests. If the progress HUD is tapped, I call: [[[HTTPRequestSingleton sharedClient] operationQueue] cancelAllOperations]; But this doesn't "cancel" the operation like I need it to. I read up on the NSOperationQueue docs and came across this: Canceling an operation object leaves the object in the queue but notifies the object that it should abort its task as quickly as possible. For currently executing operations, this