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iOS Swift 2.0 Enumerations and Optionals Introduction to Enumerations Enum Methods

Can't get past enums.

I have tried numerous solutions. Don't understand "initializer" comment in preview. Have worked over two hours.

buttons.swift
import Foundation

enum UIBarButtonStyle {
    case Done
    case Plain
    case Bordered
}

class UIBarButtonItem {

    var title: String?
    let style: UIBarButtonStyle
    var target: AnyObject?
    var action: Selector

    init(title: String?, style: UIBarButtonStyle, target: AnyObject?, action: Selector) {
        self.title = title
        self.style = style
        self.target = target
        self.action = action
    }
}
enums.swift
enum Button {
    case Done(title: String)
    case Edit(title: String)

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

       }

    }
}

let done = Button.Done(title: "Done")
let doneButton : UIBarButtonItem = Button(done)

1 Answer

Steven Deutsch
Steven Deutsch
21,046 Points

Hey Erin Krentz,

You're SO close!!! The only problem is with your call of the method. You need to call the method toUIBarButtonItem on done and assign it to the constant doneButton.

let doneButton = done.toUIBarButtonItem()

And that's it. The fix is as simple as that! This was a really hard challenge, I had a lot of trouble even getting to the point you got to myself!

Good Luck!