Where is self.state defined ?

You can use asyncAfter to display labelToShow (UILabel) which was initially hidden (in IB or at viewDidLoad) To wait for 2 seconds: DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) { labelToShow.isHidden = false } You could also flash it with some animation, to make sure user will notice…

What is wrong in this First, the formatting… 😉 var aNumber = Int(readLine()!)! func dayOfTheWeek(day: Int) { switch dayOfTheWeek { case 2: print("Monday") case 3: print("Tuesday") case 4: print("Wednesday") case 5: print("Thursday") case 6: print("Friday") case 7: print("Saturday") case 8: print("Sunday") default: print("Error") } } dayOfTheWeek(day: <#Int#>) This code is not very robust. Unwrapping without checking for nil may cause crashes. For instance, you'd better write: var aNumber = Int(readLine() ?? "0") ?? 0 You cannot use the func name in the switch, in addition it would be a wrongType (a func () -> Void, and not an Int for the switch) Does your week really starts at 2 ? It is probably 0 (maybe 1) ; in anglo saxon world, first day is sunday (0) So, at the end your code should look like this: var aNumber = Int(readLine() ?? "0") ?? 10 func dayOfTheWeek(day: Int) { switch day { case 1: // if first day is 1 ; print("Monday") case 2: print("Tuesday") case 3: print("Wednesday") case 4: print("Thursday") case 5: print("Friday") case 6: print("Saturday") case 7: print("Sunday") default: print("Error") } } print(dayOfTheWeek(day: aNumber))

There is detailed answer here to overcome SwiftUI limits. Maybe that's what you did. https://stackoverflow.com/questions/56726663/how-to-add-a-textfield-to-alert-in-swiftui You could file a bug report for enhancement.

Did you try to download from here: https://developer.apple.com/download/release/

The right place to make such a request is Feedback Assistant: https://feedbackassistant.apple.com

You asked a very similar question in another thread (and did not tell if the solution proposed worked). So it is a similar solution here: use DispatchQueue.main.asyncAfter let delay : Double = 5.0 // 5 seconds here DispatchQueue.main.asyncAfter(deadline: .now() + delay) { // Code to go to other controller, either segue, or VC instantiation }

collectionViewCells stack on top of each other A probable reason is that your cellForItemAt causes the problem.     func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { For instance, if you add subviews in cell, you have to remove first any existing subview in the cell and add new ones. So, please show the code of the func to confirm.

Do you want to learn ? Then forum can help you if you expose what you are not able to do yet. If you want to share idea, and get some advice on how to do it, please expose the idea. On the other end, if you want to sell an idea, then the forum is not the right place, this type of soliciting has no place here. Please explain and eventually detail the idea.

You should answer the other post ; better than creating a new one for the same question.

it doesn't work That does not provide any useful information. What do you get Do you get error message? Do you get a crash ? what do you expect ? Is it SwiftUI ? If so, show complete code I tested in a project, it works as expected. Are you sure you defined IDKview class in IB correctly ? And please, answer the post here, not in a new one, and close previous posts if they are terminated.

How do I tell from which to which view controller should it go As I said, you can instantiate the VC (as you did in another post) or you can perform segue that you can define in IB.

It seems your answers to some posts are not visible yet. And don't forget to close the threads, that makes it much easier to understand it is solved.

What is the extension about ? Have you checked if some privacy setting on the phone could block the extension ?