I'm working on Swift Playground right now. I declared UI objects in loadView() Swift class ViewController: UIViewController {       override func loadView() {     let view = UIView(frame: viewRect)     view.backgroundColor = UIColor.white           let titleLabel = UILabel()     titleLabel.translatesAutoresizingMaskIntoConstraints = false     titleLabel.text = "title"     titleLabel.backgroundColor = .gray                 view.addSubview(titleLabel)     NSLayoutConstraint.activate([       titleLabel.widthAnchor.constraint(equalToConstant: 200),       titleLabel.topAnchor.constraint(equalTo: view.topAnchor, constant: 100),       titleLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor)     ])           let subLabel = UILabel()     subLabel.translatesAutoresizingMaskIntoConstraints = false     subLabel.text = "title"     subLabel.backgroundColor = .red                 view.addSubview(subLabel)     NSLayoutConstraint.activate([       subLabel.widthAnchor.constraint(equalToConstant: 100),       subLabel.topAnchor.constraint(equalTo: titleLabel.bottomAnchor, constant: 100),       subLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor)     ])           self.view = view   } } in this case, Everything works fine. But I tried to declare those labels outside of loadView() like this: Swift class ViewController: UIViewController {       var titleLabel = UILabel()   var subLabel = UILabel()       override func loadView() {     let view = UIView(frame: viewRect)     view.backgroundColor = UIColor.white     titleLabel = UILabel()     titleLabel.translatesAutoresizingMaskIntoConstraints = false     titleLabel.text = "title"     titleLabel.backgroundColor = .gray                 view.addSubview(titleLabel)     NSLayoutConstraint.activate([       titleLabel.widthAnchor.constraint(equalToConstant: 200),       titleLabel.topAnchor.constraint(equalTo: view.topAnchor, constant: 100),       titleLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor)     ])                 subLabel.translatesAutoresizingMaskIntoConstraints = false     subLabel.text = "title"     subLabel.backgroundColor = .red                 view.addSubview(subLabel)     NSLayoutConstraint.activate([       subLabel.widthAnchor.constraint(equalToConstant: 100),       subLabel.topAnchor.constraint(equalTo: titleLabel.bottomAnchor, constant: 100),       subLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor)     ])           self.view = view   } } When I run this code (which labels are declared outside of loadView()), Constraints are not working except for width/height constraints. Also, when i run the code only with 1 label, Everything works fine even label is declared outside of loadView() Is there any solution to fix this problem?

Greetings, I want to force my app's Orientation. Most solutions for "How to force orientation to Landscape for SwiftUI" seems works only for "real" SwiftUI project, not .swiftpm How can I force orientation to landscape for Swift Playground App Project?

Greetings, I want to force my app's Orientation. Most solutions for "How to force orientation to Landscape for SwiftUI" seems works only for "real" SwiftUI project, not .swiftpm How can I force orientation to landscape for Swift Playground App Project?