Auto Layout in Swift: Writing constraints programmatically (Code Base UI)

Questions

[ ] 왜 private let으로 view를 선언해주는가

private let titleImageView: UIImageView = {
    let imageView = UIImageView()
    imageView.translatesAutoresizingMaskIntoConstraints = false
    imageView.image = UIImage(named: "login_title_icon")
    imageView.contentMode = .scaleAspectFit
    return imageView
}()

[ ] NSLayoutConstraint.activate 을 사용하는 이유

NSLayoutConstraint.activate([
        self.container.leadingAnchor.constraint(equalTo: self.view.leadingAnchor, constant: 50),
        self.container.trailingAnchor.constraint(equalTo: self.view.trailingAnchor, constant: -50),
        self.container.centerYAnchor.constraint(equalTo: self.view.centerYAnchor)
])

[ ] addArrangedSubview 를 사용하는 이유

self.container.addArrangedSubview(self.titleImageView) // 컨테이너가 스택뷰이기때문

chaneeii / iOS-Study-Log

Auto Layout in Swift: Writing constraints programmatically (Code Base UI) #6