Objective-C delay action with blocks

Question

I know that there are several ways of delaying an action in Objective-C like:

performSelector:withObject:afterDelay:

or using NSTimer

Answer 1

Here is how you can trigger a block after a delay in Swift:

runThisAfterDelay(seconds: 4) { () -> () in
    print("Prints this 4 seconds later in main queue")
    // Or just call animatedMyObject() right here
}

/// EZSwiftExtensions
func runThisAfterDelay(seconds seconds: Double, after: () -> ()) {
    let time = dispatch_time(DISPATCH_TIME_NOW, Int64(seconds * Double(NSEC_PER_SEC)))
    dispatch_after(time, dispatch_get_main_queue(), after)
}

Its included as a standard function in my repo: https://github.com/goktugyil/EZSwiftExtensions