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iOS Swift 2.0 Enumerations and Optionals Introduction to Enumerations Enum Methods

Rafael Robles
Rafael Robles
3,907 Points
Posted by Rafael Robles
Rafael Robles
3,907 Points

Task 2 of 2: assigning done button shows compiler errors.

What's wrong with my code

enum Button {
    case Done(String)
    case Edit(String)

    func toUIBarButtonItem() -> UIBarButtonItem {
        switch self {
        case .Done(let doneValue) : return UIBarButtonItem(title: doneValue, style: UIBarButtonStyle.Done, target: nil, action: nil)
        case .Edit(let editValue) : return UIBarButtonItem(title: editValue, style: UIBarButtonStyle.Plain, target: nil, action: nil)
        }
    }
}

let done = Button.Done("Done")
let doneButton = done.toUIBarButtonItem()

1 Answer

johnhenri
johnhenri
42,259 Points
johnhenri
johnhenri
42,259 Points

You almost had it. You need to return the value for each switch case.

 enum Button {
    case Done(String)
    case Edit(String)

  func toUIBarButtonItem() -> UIBarButtonItem {
        switch self {
        case .Done: return UIBarButtonItem(title: "Done", style: UIBarButtonStyle.Done, target: nil, action: nil)
        case .Edit: return UIBarButtonItem(title: "edit", style: UIBarButtonStyle.Plain, target: nil, action: nil)
        }
    }
}

let done = Button.Done("Done")
let doneButton = done.toUIBarButtonItem()