Delivering an Exceptional Accessibility Experience 의 샘플코드를 LayoutDrivenUI기반으로 재작성함

DogStatView.swift

class DogStatsView: UIView {

    @IBOutlet var nameTitleLabel: UILabel!
    @IBOutlet var nameLabel: UILabel!
    @IBOutlet var breedTitleLabel: UILabel!
    @IBOutlet var breedLabel: UILabel!
    @IBOutlet var ageTitleLabel: UILabel!
    @IBOutlet var ageLabel: UILabel!
    @IBOutlet var weightTitleLabel: UILabel!
    @IBOutlet var weightLabel: UILabel!

    var dog: Dog? = nil {
        didSet { setNeedsLayout() }
    }

    override func layoutSubviews() {
        super.layoutSubviews()
        
        guard let dog = dog else {
            return
        }

        nameLabel.text = dog.name
        breedLabel.text = dog.breed
        ageLabel.text = "\(dog.age)"
        weightLabel.text = "\(dog.weight)"
        
        // Accessibility Logic
        let nameElement = UIAccessibilityElement(accessibilityContainer: self)
        nameElement.accessibilityLabel = nameTitleLabel.text
        nameElement.accessibilityValue = nameLabel.text
        nameElement.accessibilityFrameInContainerSpace = nameTitleLabel.frame.union(nameLabel.frame)
        
        let ageElement = UIAccessibilityElement(accessibilityContainer: self)
        ageElement.accessibilityLabel = ageTitleLabel.text
        ageElement.accessibilityValue = ageLabel.text
        ageElement.accessibilityFrameInContainerSpace = ageTitleLabel.frame.union(ageLabel.frame)
        
        let breedElement = UIAccessibilityElement(accessibilityContainer: self)
        breedElement.accessibilityLabel = breedTitleLabel.text
        breedElement.accessibilityValue = breedLabel.text
        breedElement.accessibilityFrameInContainerSpace = breedTitleLabel.frame.union(breedLabel.frame)
        
        let weightElement = UIAccessibilityElement(accessibilityContainer: self)
        weightElement.accessibilityLabel = weightTitleLabel.text
        weightElement.accessibilityValue = weightLabel.text
        weightElement.accessibilityFrameInContainerSpace = weightTitleLabel.frame.union(weightLabel.frame)
        
        accessibilityElements = [
            nameElement,
            ageElement,
            breedElement,
            weightElement
        ]
    }
}