How to get resolution change event in swift?

Question

I try to make an app, and now i shoud make some changes when screen resolution will change, but i coudn\'t find how to intercept this event.

Do you have any ideea ho

Answer 1

Swift 4:

The didChangeScreenParametersNotification is posted when the configuration of the displays attached to the computer is changed.

Inside the func applicationDidFinishLaunching() in AppDelegate class or func viewDidLoad() in ViewController class, insert the following code:

NotificationCenter.default.addObserver(forName: NSApplication.didChangeScreenParametersNotification,
                                       object: NSApplication.shared,
                                       queue: OperationQueue.main) {
                                       notification -> Void in
                                       print("screen parameters changed")}

I personally, used it to center the position of my application when switching between the Mac and the external screen.