article-customfonts2.swift

extension UIFont {
    func with(style: UIFont.TextStyle, basePointSize: CGFloat, maxPointSize: CGFloat? = nil) -> UIFont {
        if let maxPointSize = maxPointSize {
            return UIFontMetrics(forTextStyle: style).scaledFont(for: self.withSize(basePointSize),
                                                                 maximumPointSize: maxPointSize)
        }
        return UIFontMetrics(forTextStyle: style).scaledFont(for: self.withSize(basePointSize))
    }
}