Block Screenshots in iOS

import UIKit
class ViewController: UIViewController {    private lazy var screenshotBlockLabel: UILabel = {        let label = UILabel()        label.text = "No Screenshots ❌"        label.textAlignment = .center        return label    }()
    private lazy var tableView: UITableView = {        let tableView = UITableView()        tableView.dataSource = self        tableView.delegate = self        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")        return tableView    }()
    override func viewDidLoad() {        super.viewDidLoad()        setupSecureView()    }
    private func setupSecureView() {        guard let secureView = SecureField().secureContainer else { return }
        view.addSubview(screenshotBlockLabel)        screenshotBlockLabel.pinEdges()
        secureView.addSubview(tableView)        tableView.pinEdges()
        view.addSubview(secureView)        secureView.pinEdges()    }}
extension ViewController: UITableViewDataSource, UITableViewDelegate {    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {        5    }
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)        cell.textLabel?.text = "Try to screenshot \(indexPath)"        return cell    }}
class SecureField: UITextField {    weak var secureContainer: UIView? {        let secureView = subviews.first { String(describing: type(of: $0)).contains("CanvasView") }        secureView?.translatesAutoresizingMaskIntoConstraints = false        secureView?.isUserInteractionEnabled = true        return secureView    }
    override var canBecomeFirstResponder: Bool { false }    override func becomeFirstResponder() -> Bool { false }
    override init(frame: CGRect) {        super.init(frame: .zero)        isSecureTextEntry = true        translatesAutoresizingMaskIntoConstraints = false    }
    required init?(coder: NSCoder) {        fatalError("init(coder:) has not been implemented")    }}
extension UIView {    func pinEdges(to superview: UIView? = nil) {        guard let superview = superview ?? self.superview else { return }        translatesAutoresizingMaskIntoConstraints = false        NSLayoutConstraint.activate([            topAnchor.constraint(equalTo: superview.topAnchor),            leadingAnchor.constraint(equalTo: superview.leadingAnchor),            trailingAnchor.constraint(equalTo: superview.trailingAnchor),            bottomAnchor.constraint(equalTo: superview.bottomAnchor)        ])    }}