Multiline UIButton and autolayout

Question

I have created a view controller that looks like this:

I want the two

Answer 1

Version, which also taking into account titleEdgeInsets and not overrides standard button behaviour unless titleLabel?.numberOfLines set to zero and button image set to nil.

open class Button: UIButton {

   override open var intrinsicContentSize: CGSize {
      if let titleLabel = titleLabel, titleLabel.numberOfLines == 0, image == nil {
         let size = titleLabel.intrinsicContentSize
         let result = CGSize(width: size.width + contentEdgeInsets.horizontal + titleEdgeInsets.horizontal,
                             height: size.height + contentEdgeInsets.vertical + titleEdgeInsets.vertical)
         return result
      } else {
         return super.intrinsicContentSize
      }
   }

   override open func layoutSubviews() {
      super.layoutSubviews()
      if let titleLabel = titleLabel, titleLabel.numberOfLines == 0, image == nil {
         let priority = UILayoutPriority.defaultLow + 1
         if titleLabel.horizontalContentHuggingPriority != priority {
            titleLabel.horizontalContentHuggingPriority = priority
         }
         if titleLabel.verticalContentHuggingPriority != priority {
            titleLabel.verticalContentHuggingPriority = priority
         }
         let rect = titleRect(forContentRect: contentRect(forBounds: bounds))
         titleLabel.preferredMaxLayoutWidth = rect.size.width
         super.layoutSubviews()
      }
   }
}