Controller utilizado para mostrar como deve ser feito o View Code.

LoginViewController.swift

final class LoginViewController: UIViewController {
  
  private lazy var loginLabel: UILabel = {
    let view = UILabel(frame: .zero)
    view.translatesAutoresizingMaskIntoConstraints = false
    view.layer.cornerRadius = 20
    return view
  }()

  private lazy var passwordLabel: UILabel = {
    let view = UILabel(frame: .zero)
    view.translatesAutoresizingMaskIntoConstraints = false
  return view
  }()

  private lazy var loginTextField: UITextField = {
    let view = UITextField(frame: .zero)
    view.translatesAutoresizingMaskIntoConstraints = false
    return view
  }()

  private lazy var passwordTextField: UITextField = {
    let view = UITextField(frame: .zero)
    view.translatesAutoresizingMaskIntoConstraints = false
    return view
  }()

  private lazy var loginButton: UIButton = {
    let view = UIButton(frame: .zero)
    view.translatesAutoresizingMaskIntoConstraints = false
    return view
  }()
  
}