Where do you put a global method in swift?

Question

I have a function that is common to all my controllers:

func myColor() -> UIColor {
    return UIColor(red: 9.0/255.0, green: 134.0/255.0, blue: 255.0/255.0, alpha: 1)
}

Where can I put this function, so I can access it from any controller?

Answer 1

By default all default access scope (internal) functions are available everywhere in the application. If you have this function defined in different module, you need to use public modifier.

To make your code clearer it is best to create extension for UIColor.

extension UIColor {
    class func myColor() -> UIColor {
        return UIColor(red: 9.0/255.0, green: 134.0/255.0, blue: 255.0/255.0, alpha: 1)
    }
}

Then you can use myColor same way as default UIColor colors.

let systemColor = UIColor.blackColor()
let myColor = UIColor.myColor()