What is DispatchQueue main async in Swift?
DispatchQueue. main (the main queue) is a serial queue. It doesn’t block the queue. From Stack Overflow. Essentially this just means that sync will block the main thread until the task has finished, async means this will happen on a background thread and update the main thread when it is finished.Click to see full answer….
DispatchQueue. main (the main queue) is a serial queue. It doesn’t block the queue. From Stack Overflow. Essentially this just means that sync will block the main thread until the task has finished, async means this will happen on a background thread and update the main thread when it is finished.Click to see full answer. Accordingly, what is async in Swift?Asynchronous operations for writing concurrent solutions in Swift. Asynchronous operations allow executing long-running tasks without having to block the calling thread until the execution completes.Also Know, what is synchronous and asynchronous in Swift? swift 3, 4, 4,2 Synchronous means that thread that initiated that operation will wait for the task to finish before continuing. DispatchQueue. main. sync { } Asynchronous means that Completes a task in background and can notify you when complete means it will not wait. One may also ask, what is DispatchQueue? DispatchQueue. An object that manages the execution of tasks serially or concurrently on your app’s main thread or on a background thread.What is DispatchGroup?DispatchGroup. A group of tasks that you monitor as a single unit.
