Using threads to update UI with Swift
Swift 3.0 + version
DispatchQueue.main.async() { // your UI update code}Posted this because XCode cannot suggest the correct syntax from swift 2.0 version
There is GCD. Here is a basic usage:
for page in listOfPages { var label = NSTextField() dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) { let result = getInformationFromPage(page) dispatch_async(dispatch_get_main_queue()) { label.stringValue = result } }}dispatch_async function asynchronously runs the block of code on the given queue. In first dispatch_async call we dispatch the code to run on background queue. After we get result we update label on main queue with that result