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iOS Enumerations and Optionals in Swift Introduction to Enumerations Enum Methods

Posted by Mehran Moradi
Mehran Moradi
11,140 Points

I am stuck and it says make sure you assign to a constant name doneButton

I am stuck and it says make sure you assign to a constant name doneButton

buttons.swift 
import UIKit

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

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

let done = BarButton.done("Save")

let doneButton = done.button()

2 Answers

Jennifer Nordell
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STAFF
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Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
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Jennifer Nordell
Treehouse Teacher

Hi there! You're fairly close here so, I'm going to give a few hints.

  • The import UIKit is unnecessary and produces a compiler error for me
  • The case done and case edit which take a String should have an external label of title
  • The external label of title should be used when sending in your "Save" string
  • Although the Bummer! message references a constant named doneButton, the instructions say that the constant should be named button. Rename doneButton to simply button

I think you can get it with these hints, but please let me know if you're still stuck! :sparkles:

Mehran Moradi
Mehran Moradi
11,140 Points
Mehran Moradi
Mehran Moradi
11,140 Points

Thanks Again Jennifer. Jennifer If want to ask questions can I ask directly from you? Can you please share with me your email? I want in some cases if possible ask some learning questions