Equivalent of dynamic type "automatically adjusts font" setting for UIButton in Interface Builder?

Question

A UILabel has a Dynamic Type: Automatically Adjusts Font check-box in the Attributes Inspector in Interface Builder.

Is there an equivalent in Interface Builder for automatically adjusting the font size of a UIButton, or does this have to be handled in code?

I'm using Xcode 9.0 beta 6, targeting iOS 11.

Answer 1

Apparently there isn't, but it's not very hard to fix. You can make an extension on UIButton with an @IBInspectable property:

extension UIButton {

    @IBInspectable
    var adjustsFontForContentSizeCategory: Bool {
        set {
            self.titleLabel?.adjustsFontForContentSizeCategory = newValue
        }
        get {
            return self.titleLabel?.adjustsFontForContentSizeCategory ?? false
        }
    }
}

Now you can simply turn it on for every UIButton (or any of its subclasses).

Answer 2

Well there seems to be a way to do it in the Interface Builder only. I use Xcode version 11.5.

1. First set as usual a dynamic font type:

I choose Subhead because according to this link it will be 15 pt height which was the font size I had previously set for the button.

2. Instead of setting the titleLabel.adjustsFontForContentSizeCategory in code, you can set it in the "User Defined Runtime Attributes" section in Xcode.