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iOS Enumerations and Optionals in Swift Introduction to Enumerations Enum Methods

Clark Reilly
Clark Reilly
6,204 Points

Why won't this compile?

The preview shows no compiler errors.

// Example of UIBarButtonItem instance
// let someButton = UIBarButtonItem(title: "A Title", style: .plain, target: nil, action: nil)

enum BarButton {
    case done(title: String)
    case edit(title: String)

    func button()->UIBarButtonItem {
        switch self {
      case .done(let title):
        return UIBarButtonItem(title: title, style: UIBarButtonItemStyle.done, target: nil, action: nil)
      case .edit(let title):
        return UIBarButtonItem(title: title, style: UIBarButtonItemStyle.plain, target: nil, action: nil)

let done = BarButton.done(title: "Save")
let button = done.button

1 Answer

Alex Koumparos
Alex Koumparos
Python Development Techdegree Student 36,862 Points

Hi Clark,

Your problem is on your very last line. You are assigning the button method to the button constant when you should be assigning the result of calling the method to your constant button.



Clark Reilly
Clark Reilly
6,204 Points

Figured it’d be something dumb like that. thanks!