UIView+size.swift

import Foundation

public extension UIView {

    func compactSystemLayoutFittingSizeFor(width: CGFloat) -> CGSize {
        let targetSize = CGSize(
            width: width,
            height: UIView.layoutFittingCompressedSize.height
        )

        return systemLayoutSizeFitting(
            targetSize,
            withHorizontalFittingPriority: .required,
            verticalFittingPriority: .fittingSizeLevel
        )
    }

    func compactSystemLayoutFittingSizeFor(height: CGFloat) -> CGSize {
        let targetSize = CGSize(
            width: UIView.layoutFittingCompressedSize.width,
            height: height
        )

        return systemLayoutSizeFitting(
            targetSize,
            withHorizontalFittingPriority: .fittingSizeLevel,
            verticalFittingPriority: .required
        )
    }

    func expandedSystemLayoutFittingSizeFor(width: CGFloat) -> CGSize {
        let targetSize = CGSize(
            width: width,
            height: UIView.layoutFittingExpandedSize.height
        )

        return systemLayoutSizeFitting(
            targetSize,
            withHorizontalFittingPriority: .required,
            verticalFittingPriority: .fittingSizeLevel
        )
    }

    func compactSystemLayoutFittingHeightFor(width: CGFloat) -> CGFloat {
        return compactSystemLayoutFittingSizeFor(width: width).height
    }

    func compactSystemLayoutFittingWidthFor(height: CGFloat) -> CGFloat {
        return compactSystemLayoutFittingSizeFor(height: height).width
    }

    func expandedSystemLayoutFittingHeightFor(width: CGFloat) -> CGFloat {
        expandedSystemLayoutFittingSizeFor(width: width).height
    }
}