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Я добавил 4 компонента программно, как показано ниже;

UITextField(.голубой), UIImageView(.зеленый), UILabel(.желтый) и UIView(.синий). Вот метод viewDidLoad;

 override func viewDidLoad() {  super.viewDidLoad()    // 1  view.addSubview(searchTextField)  if (isDevelopmentProcess){searchTextField.backgroundColor = .cyan} else {searchTextField.backgroundColor = .clear}  searchTextField.translatesAutoresizingMaskIntoConstraints = false  searchTextField.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 15).isActive = true  searchTextField.rightAnchor.constraint(equalTo: view.rightAnchor, constant: -15).isActive = true  searchTextField.heightAnchor.constraint(equalToConstant: 34).isActive = true  searchTextField.topAnchor.constraint(equalTo: view.topAnchor, constant: 40).isActive = true    // 2  view.addSubview(randomRecordPicture)  if (isDevelopmentProcess){randomRecordPicture.backgroundColor = .green} else {randomRecordPicture.backgroundColor = .clear}  randomRecordPicture.translatesAutoresizingMaskIntoConstraints = false  randomRecordPicture.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 100).isActive = true  randomRecordPicture.rightAnchor.constraint(equalTo: view.rightAnchor, constant: -100).isActive = true  randomRecordPicture.heightAnchor.constraint(equalToConstant: 140).isActive = true  randomRecordPicture.topAnchor.constraint(equalTo: view.topAnchor, constant: 89).isActive = true    //3  view.addSubview(randomRecordTitle)  if (isDevelopmentProcess){randomRecordTitle.backgroundColor = .yellow} else {randomRecordTitle.backgroundColor = .clear}  randomRecordTitle.translatesAutoresizingMaskIntoConstraints = false  randomRecordTitle.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 15).isActive = true  randomRecordTitle.rightAnchor.constraint(equalTo: view.rightAnchor, constant: -15).isActive = true  randomRecordTitle.heightAnchor.constraint(equalToConstant: 34).isActive = true  randomRecordTitle.topAnchor.constraint(equalTo: view.topAnchor, constant: 244).isActive = true    //4  view.addSubview(blueView)  if (isDevelopmentProcess){blueView.backgroundColor = .blue} else {randomRecordTitle.backgroundColor = .clear}  blueView.translatesAutoresizingMaskIntoConstraints = false  blueView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true  blueView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true  blueView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true  blueView.topAnchor.constraint(equalTo: view.topAnchor, constant: 293).isActive = true }  

It looks like below after I click rotate button on simulator;

1st time rotate(It is fine.)

2nd time rotate(It is fine.)

3rd time rotate(It is fine.)

4th time rotate(this is the problem);

I would like to see the page like we start after I click rotate button 4th time;

Here is my code block for the rotate issue;

 override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {  super.viewWillTransition(to: size, with: coordinator)  coordinator.animate(alongsideTransition: nil) { [self] _ in  if UIDevice.current.orientation.isLandscape {  //LANDSCAPE  randomRecordPicture.isHidden = true  randomRecordTitle.isHidden = true  blueView.topAnchor.constraint(equalTo: view.topAnchor, constant: 89).isActive = true  }  else{  // PORTRAIT  randomRecordPicture.isHidden = false  randomRecordTitle.isHidden = false    randomRecordPicture.translatesAutoresizingMaskIntoConstraints = false  randomRecordPicture.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 100).isActive = true  randomRecordPicture.rightAnchor.constraint(equalTo: view.rightAnchor, constant: -100).isActive = true  randomRecordPicture.heightAnchor.constraint(equalToConstant: 140).isActive = true  randomRecordPicture.topAnchor.constraint(equalTo: view.topAnchor, constant: 89).isActive = true    randomRecordTitle.translatesAutoresizingMaskIntoConstraints = false  randomRecordTitle.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 15).isActive = true  randomRecordTitle.rightAnchor.constraint(equalTo: view.rightAnchor, constant: -15).isActive = true  randomRecordTitle.heightAnchor.constraint(equalToConstant: 34).isActive = true  randomRecordTitle.topAnchor.constraint(equalTo: view.topAnchor, constant: 244).isActive = true    blueView.translatesAutoresizingMaskIntoConstraints = false  blueView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true  blueView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true  blueView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true  blueView.topAnchor.constraint(equalTo: view.topAnchor, constant: 293).isActive = true     randomRecordPicture.layer.zPosition = 3  randomRecordTitle.layer.zPosition = 2  blueView.layer.zPosition = 1  }  } }  

How can I fix this problem? All views should be in starting position after end of the rotate loop. Looks like below code does not work. Also I see lots of warnings after I click the rotate button.

 blueView.topAnchor.constraint(equalTo: view.topAnchor, constant: 293).isActive = true  

Here is the warning;

 [LayoutConstraints] Unable to simultaneously satisfy constraints. Probably at least one of the constraints in the following list is one you don't want.  Try this:   (1) look at each constraint and try to figure out which you don't expect;   (2) find the code that added the unwanted constraint or constraints and fix it.  (  "lt;NSLayoutConstraint:0x600003d83520 V:|-(89)-[UIView:0x7fb90970cb20] (active, names: '|':UIView:0x7fb90a304780 )gt;",  "lt;NSLayoutConstraint:0x600003d83840 V:|-(293)-[UIView:0x7fb90970cb20] (active, names: '|':UIView:0x7fb90a304780 )gt;" )  Will attempt to recover by breaking constraint  lt;NSLayoutConstraint:0x600003d83840 V:|-(293)-[UIView:0x7fb90970cb20] (active, names: '|':UIView:0x7fb90a304780 )gt;  Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in lt;UIKitCore/UIView.hgt; may also be helpful.  

By the way it looks like below when i write -293;

 blueView.topAnchor.constraint(equalTo: view.topAnchor, constant: -293).isActive = true  

But blue view is not going below if I write more then 293 value. Like this

 blueView.topAnchor.constraint(equalTo: view.topAnchor, constant: 450).isActive = true  

Thanks.