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iOS Enumerations and Optionals in Swift Introduction to Enumerations Enum Methods

Randell Purington
Randell Purington
9,992 Points
Posted by Randell Purington
Randell Purington
9,992 Points

I need help with the Enum methods code challenge 2 of 2.

swift_lint.swift:63:1: error: expected declaration

^ swift_lint.swift:45:6: note: in declaration of 'BarButton' enum BarButton { ^ swift_lint.swift:61:5: error: enums may not contain stored properties let done = BarButton.done(title: "Save") ^ swift_lint.swift:62:5: error: enums may not contain stored properties let button = done.button()

this is the what I get when I click on preview. I tried changing things around but I am not getting it correct so I went back to my original code.

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)

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 button = done.button()

1 Answer

Johnny Nguyen
Johnny Nguyen
3,875 Points
Johnny Nguyen
Johnny Nguyen
3,875 Points 
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 button = done.button()

With this task, you don't need to create two enums. Moreover, create two enums with the same name will cause errors in code.