Is there an equivalent to CSS for XIB (XCode Interface Builder XML)?

Question

Is there any way to apply a style XIB files created by XCode? Something equivalent to styling an HTML file with CSS? I'd like to be able to, say, change the background image for all buttons or for all buttons of a certain class.

(I realize I could probably use XSLT to transform the XIB file or subclass NSButton to set a default background but I'd much rather use a stylesheet type mechanism if one exists)

Thanks, -- James

Answer 1

I'm also looking for something similar. I found this which are the closest I could find:

Inspectable:

Ability to add more personalization features to the interface, like round corners, border width, border color... https://www.weheartswift.com/make-awesome-ui-components-ios-8-using-swift-xcode-6/

Afterwards, I created this for buttons as an example:

@IBDesignable public class DesignableButton: UIButton {        
    @IBInspectable var buttonStyle: String {
        set {
            switch newValue  {
            case "green":
                layer.frame.size.height = 44
                layer.cornerRadius = 22
                layer.backgroundColor = UIColor.greenColor().CGColor
            case "white":
                layer.backgroundColor = UIColor.whiteColor().CGColor
                layer.frame.size.height = 44
                layer.cornerRadius = 22
            default:
                break
            }
        }
    }
}

Swift UI:

Haven't tried but seems like a great solution, you can stylize your app using CSS: https://github.com/tombenner/nui