CatViewController Sample

CatViewController.swift

class CatViewController: UIViewController {
    lazy var stackView: UIStackView = {
        let stackView = UIStackView(arrangedSubviews: [
            titleLabel,
            catsView
        ])
        stackView.axis = .vertical
        stackView.distribution = .fill
        return stackView
    }()
    
    lazy var catsView: CatsUIView = {
        let catsView = CatsUIView()
        
        // Experiment: Disable this and compare it running on iOS 14 and iOS 15
        catsView.setContentCompressionResistancePriority(.required, for: .vertical)
        
        return catsView
    }()
 ...
}