If I reduce the number of NavigationLinks, it works:        Reduce by 1, by 2 ?    But I have cases with 10 links which work. Could you attach the complete project, so that we can try to reproduce ?

I have my app localized for many languages, but I'd like to limit the available app languages to only a subset of those, because the content is not ready for all of them. So in fact the app is not yet localised in those languages. A better practice would be to only add a language when it is readily available. And release a new version. Did I miss something ?

Did you try: let chicagoTimezoneName = NSTimeZone.knownTimeZoneNames().filter { $0.containsString("Chicago") }.first dateFormatter.timeZone = NSTimeZone(name: chicagoTimezoneName!) Seen from https://stackoverflow.com/questions/9761847/where-can-i-find-a-list-of-timezones

Some code formatting with formatter (<>) tool will make it easier to read: languageLabels = (MyFunctions.getValue(key: Utils.languageLabelsKey) as! NSDictionary  if i print the a value from the key without using get i.e   languageLabels!.get(key)   print("my labes \(languageLabels[key])")  I get my labes Optional(Done) but when I get using .get  let lngValue = languageLabels!.get(key)  program stop in debug and I have to click continue program execution for the app to continue launching languagesLabels is not nil Could you show get function in MyFunctions There is probably an error there. and how you declared in Utils languageLabelsKey

You can get the real screen size (in points or pixels): https://stackoverflow.com/questions/4779221/in-iphone-app-how-to-detect-the-screen-resolution-of-the-device And knowing the screen resolution (in points or pixels), you know the physical pixel / point size. Then knowing the size of elements, you know the fraction of screen it is. Hence you can compute its physical size. Or adjust the size (in points) of UI element as needed.

That's not a question for the developers forum. And you'll never get clear answer to such a question: this who speak don't know and those who know can't speak. So you just feed the rumor mill… Have you a problem with the game you develop ? Then explain the context where problem occurs.

If I understand your question correctly: keep the object (here label) selected use the menu command : Editor > Resolve Layout Issues > Update Frame (in the Selected Views section.

You don't replace the content of the notification but schedule a new one at the desired time. You don't change the action: at the present time (when notification has been fired), search for the next bus to depart scroll to the corresponding item

Code in the IBAction should be like: let storyBoard = NSStoryboard(name: "Main", bundle: nil) as NSStoryboard let secondController = storyBoard.instantiateController(withIdentifier: "secondVC")     self.presentAsModalWindow(secondController, animated: true, completion: nil) Don't forget to remove the segue from the button.

@Frameworks Engineer  Unfortunately, all has not been fixed yet. No notification received when answer marked as correct.

I try the example, but the 'Range' and 'Comparative' show error: Unknown precedence group Names of groups may have changed to: RangeFormationPrecedence ComparisonPrecedence And this compiles: precedencegroup Additive { higherThan: RangeFormationPrecedence, Equivalence } precedencegroup Multiplicative { higherThan: Additive } // module A precedencegroup Equivalence { higherThan: ComparisonPrecedence // lowerThan: Additive // possible, because Additive lies in another module } infix operator ~ : Equivalence Which confirms what you say about the issue with lowerThan. I don't understand the reason why they need to be in different modules to allow lowerThan. And documentation is really minimal on this. Could be worth a bug report on documentation.

Could you explain more what you want to do ? what is main device ? An iPhone, iPad, Mac ? What is the other device ? Cant you use AirDrop to transfer data ? You tagged Interface builder ? Do you want to transfer day between 2 ViewControllers ?

Use NSAnimation. For instance, if you want to animate when clicking a button: @IBAction func startAnimation(_ sender: NSButton) { let fixedDuration = 5.0 // set duration as you want, in seconds NSAnimationContext.runAnimationGroup( { (context) in context.duration = fixedDuration             self.view.window?.animator().setFrame(CGRect(x: 0, y: 0, width: 200, height: 200), display: true, animate: true) }) }

Could it be that    nicely formatted printable attributed string.     requires images entitlement ? Could you try without the nice formatting ?

Does it occur as well on simulator ? Could you show the code for appending pages, so that we may try to reproduce and confirm ?