Articles, podcasts and news about Swift development, by John Sundell.

Using DispatchWorkItem

Published on 28 May 2017
Basics article available: Grand Central Dispatch

Using dispatch work items you can easily cancel a delayed asynchronous GCD task if you no longer need it:

let workItem = DispatchWorkItem {
    // Your async code goes in here

// Execute the work item after 1 second
DispatchQueue.main.asyncAfter(deadline: .now() + 1, execute: workItem)

// You can cancel the work item if you no longer need it

Support Swift by Sundell by checking out this sponsor:

Architecting SwiftUI apps with MVC and MVVM

Architecting SwiftUI apps with MVC and MVVM: Although you can create an app simply by throwing some code together, without best practices and a robust architecture, you’ll soon end up with unmanageable spaghetti code. Learn how to create solid and maintainable apps with fewer bugs using this free guide.