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iOS Enumerations and Optionals in Swift Introduction to Enumerations Enum Methods

Vas Pon
Vas Pon
655 Points
Posted by Vas Pon
Vas Pon
655 Points

need help!

Actually, the task is сonfusing for me, don't know what is wrong

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 UIButtonItem(title, style: UIBarButtonStyle.done, target: nil, action: nil) 
        case .edit: return UIButtonItem(title, style: UIBarButtonStyle.plain, target: nil, action: nil)
      }
    }
}
let button = BarButton(title: "A Title", style: .plain, target: nil, action: nil).button

1 Answer

Joel Martin
Joel Martin
2,799 Points
Joel Martin
Joel Martin
2,799 Points

Hey Vas, couple things don't work in your response.

First, there was a "done" variable from task 1 of 2, that should still be there.

Also in your "button()" function : both your returns aren't returning the right type (which is UIBarButtonItem). In your returns, you're using "title" which is a undeclared variable.

And to finalize, the "button" variable asked to declare is done from the "done" variable created from task 1 of 2, and call the "button()" function from it.

Vas Pon
Vas Pon
655 Points
Vas Pon
Vas Pon
655 Points

So, thanks for answer, I fix this things, but it still doesnt work(

          <p>
// 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: .done, 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 doneButton = done.button()

</p>
          ```
Joel Martin
Joel Martin
2,799 Points
Joel Martin
Joel Martin
2,799 Points

Good work !

You got everything right except the variable name, it's "button" instead of "doneButton".

Vas Pon
Vas Pon
655 Points
Vas Pon
Vas Pon
655 Points

thanks a lot, I did this last mistake, cause of strange tips in "Bummer!"