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iOS Enumerations and Optionals in Swift Introduction to Enumerations Enum Methods

Cory Moore
Cory Moore
2,963 Points
Posted by Cory Moore
Cory Moore
2,963 Points

Either the program is broken or I am not understanding the task

What am I doing wrong here.

buttons.swift 
// 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 :
          return UIBarButtonItem(title: "Save", style: UIBarButtonItemStyle.done, target: nil, action: nil)
         case .edit :
          return UIBarButtonItem(title: "Edit", style: UIBarButtonItemStyle.plain, target: nil, action: nil)
      }
    }

}

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

let doneButton = done.button()

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points
Jhoan Arango
Jhoan Arango
14,575 Points

Hello Cory,

This challenge is looking to use the associated values of the enum.

Click here for a short explanation on how to use and extract associated values.

Challenge:

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

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

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

Do read the link above. It was an answer I gave to someone else a few days ago and it may help you as well.

Good luck and let me know if you need more help.