@elitedeveloper  I was able to solve it myself... It would be kind to explain how. And don't forget to close the thread.

Usually, you can download from here: https://developer.apple.com/download/more/

Have you inspected all your source tags ? Did you try: option-clean build folder create a new project and paste the old code in it (after pasting in a text editor without format, to make sure you don't import erroneous hidden characters). Could you paste the code in the forum ?

What did you post ? Could you edit it properly so we can understand what it is ?

Please, explain what is your question take some care when you post code to make it easier to read: ZStack { LinearGradient(gradient: Gradient(colors: [Color.orange, Color.yellow, Color.white]), startPoint: .top, endPoint: .bottom) .edgesIgnoringSafeArea(.all) SwiftUIView() boton() .font(Font.system(size: 80)) .offset(x: 10, y: -10) } UIScreen.main.brightness = 0.1 // between 0 and 1 } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } } what do you do with line 12, copied in the middle of the code ? It should be inside some func (like a Button action) what is boton() ?

I see at least 2 ways: create a CoreAnimation with the transform keyPath let trans = CABasicAnimation(keyPath: "transform"); trans.fromValue = [0.0, 0.0, 1.0, 0.0] // you may have to correct this trans.toValue = [rotationAngle * .pi / 180.0, 0.0, 1.0, 0.0] // That's my guess of the correct set of parameters button.layer.add(cotransor, forKey: "rotation") // I am not sure of the keyPath to use For the list of keyPaths: https://stackoverflow.com/questions/44230796/what-is-the-full-keypath-list-for-cabasicanimation call animate on the view UIView.animate(withDuration: 2.0, delay: 0.0, options: .curveEaseOut, animations: { /* TRANSFORM */ }, completion: { (done) in } ) with the right animations and completion handler

Yes, that's a clean way to do it with func collectionView(_ collectionView: UICollectionView, targetIndexPathForMoveFromItemAt originalIndexPath: IndexPath, toProposedIndexPath proposedIndexPath: IndexPath) - IndexPath And gives equivalent result to what I proposed. Note: for user experience, alerting (as I explained) why he cannot move would be useful.

self.sceneView.center.x = 195.0 self.sceneView.center.y = 422.0 Are they the expected values ? What type of outlier do you think of ? Did you try to debug the view hierarchy ?

That's just a personal opinion. I sleep it down and reboot from time to time (less than once a week).

I would change code with:                 ForEach(networkController.users, id: \.self){ user in and use user.weather later in the closure (you did not show what you do there, so hard to say more).

When I breakpoint in this extension: extension UITextField { func validateTextField() { print("validateTextField", self.text!) } } It does break. I use Xcode 12.4.

So, you have a code that was developed with Xcode 6.4 ? Which Xcode do you want to use now ? You may have to upgrade several times, correct the code each time, with intermediate versions of Xcode (something like): 6.4 - 8 8 - 10 10 - 12 You can download older versions of Xcode here : https://developer.apple.com/download/more/ Another way is to create a new project, rebuild the Storyboard and paste as much code as you can. Så har du en kod som har utvecklats med Xcode 6.4? Vilken Xcode vill du använda nu? Du kan behöva uppgradera flera gånger, korrigera koden varje gång, med mellanversioner av Xcode (ungefär som): 6.4 - 8 8 - 10 10 - 12 Du kan ladda ner äldre versioner av Xcode här: https://developer.apple.com/download/more/ Ett annat sätt är att skapa ett nytt projekt, bygga om Storyboard och klistra in så mycket kod som möjligt.

May have a look here for some preliminary answer: https://stackoverflow.com/questions/55077716/ios-watchos5-how-to-detect-programmatically-if-apple-watch-was-on-the-wrist-w May be you could also look at heart rate history and if nothing changed in the last 3 or 4 frames, that could mean the watch is no more on wrist, and thus ignore the measures ?

You didn't declare your class Equatable. You should try to add this protocol. class Month: Hashable, Equatable Otherwise, AFAIU, you use the standard == to compare instances, hence the references.

I don't understand what you want to show in Section and what you do in ForEach. In addition, your naming of var is awfully confusing main used in different places for different things users as plural but not an array… weather singular but several values in array If I understand what you want to do, you should probably: Section { ForEach(networkController.users.weather ?? [], id: \.self){ userWeather in // rename user Text(userWeather.main ?? "") } // ForEach is meaningless here ForEach(networkController.users.main ?? Main(temp: 0), id: \.self){ user in // Text("\(user.temp)") Text( "\(networkController.users.main ?? Main(temp: 0)).temp)") }