Grand Central Dispatch (GCD) provides a simple and robust mechanism for concurrent and asynchronous operations, primarily in Apple operating systems (e.g., iOS, macOS, watchOS, and tvOS), but also FreeBSD and MidnightBSD.
Is there a way to call a block with a primitive parameter after a delay, like using performSelector:withObject:afterDelay: …
ios objective-c grand-central-dispatch objective-c-blocksIn Swift 2, I was able to create queue with the following code: let concurrentQueue = dispatch_queue_create("com.swift3.imageQueue", …
ios swift3 xcode8 grand-central-dispatch dispatch-afterI've gone through the iBook from Apple, and couldn't find any definition of it: Can someone explain the structure of …
objective-c swift grand-central-dispatchIn Swift 2, I was able to use dispatch_after to delay an action using grand central dispatch: var dispatchTime: dispatch_…
swift swift4 grand-central-dispatch swift5I have lots of code in Swift 2.x (or even 1.x) projects that looks like this: // Move to a background …
swift grand-central-dispatch dispatch-async swift3 libdispatchIn my app I have a function that makes an NSRURLSession and sends out an NSURLRequest using sesh.dataTaskWithRequest(req, …
parameters swift grand-central-dispatchI have been using with success, grand central dispatch in my apps, but I was wondering what is the real …
ios concurrency grand-central-dispatch dispatch-asyncI have a callback which might come from any thread. When I get this callback, then I would like to …
objective-c grand-central-dispatchWhen using GCD, we want to wait until two async blocks are executed and done before moving on to the …
ios objective-c objective-c-blocks grand-central-dispatchI am testing some code that does asynchronous processing using Grand Central Dispatch. The testing code looks like this: [object …
objective-c unit-testing grand-central-dispatch