class WelcomeViewController: UIViewController {

  private let signInButton: UIButton = {
    let button = UIButton()
    button.backgroundColor = .none
    button.layer.borderWidth = 2
    button.clipsToBounds = true
    button.setTitle("apple idでログイン".uppercased(), for: .normal)
    button.setTitleColor(.systemBackground, for: .normal)
    return button
  }()

  override func viewDidLoad() {
    super.viewDidLoad()

    title = "タイトル"
    view.backgroundColor = .systemGreen
    view.addSubview(signInButton)
    signInButton.addTarget(self, action: #selector(didTapSignIn), for: .touchUpInside)
  }

  override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews()
    signInButton.frame = CGRect(x: 20, y: view.height - 50 - view.safeAreaInsets.bottom, width: view.width - 40, height: 50)
    signInButton.layer.cornerRadius = signInButton.frame.size.height / 2
  }