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iOS Swift 2.0 Enumerations and Optionals Introduction to Enumerations Enum Methods

philip williams
philip williams
5,991 Points
Posted by philip williams
philip williams
5,991 Points

can anyone help me with the last code challenge on swift 2.0 Enumerations?

having lots of problems with this challenge, here is my code:

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("Done")

any help will be greatly appreciated

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(String)
    case Edit(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("Done")

2 Answers

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

Hi Phillip:

Two minor issues:

  1. You're supposed to be creating an enum method, so your func definition needs to be inside the Button definition.
  2. You need to call the method like this: let doneButton = done.toUIBarButtonItem()

Everything else looks good!

philip williams
philip williams
5,991 Points
philip williams
philip williams
5,991 Points

Thank you greg, such a massive help. Got my Enumerations badge!