UISpect example #4

UsageInAViewController.swift

override func viewDidLoad() {
    super.viewDidLoad()

    // Normally views would take care of this themselves, not the view controller.
    // This is a just a quick example.
    OnboardingUISpec.Card.headingFont.apply(to: headingLabel)
    OnboardingUISpec.Card.bodyFont.apply(to: welcomeTextLabel)

    OnboardingUISpec.Card.backgroundColor.apply(to: [
        onboardingCardView,
        innerCardView
    ])

    // Apply `cornerRadius` and `clipsToBounds` on the view
    OnboardingUISpec.Card.cornerRadius.apply(to: onboardingCardView)

    // Set `constant` on all the constraints
    OnboardingUISpec.Card.padding.apply(to: [
        innerCardTopConstraint,
        innerCardLeadingConstraint,
        innerCardTrailingConstraint,
        innerCardBottomConstraint
    ])

    // Set both the `titleLabel.font` and `titleColor` for state "normal"
    OnboardingUISpec.Buttons.font.apply(to: nextButton)
}