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iOS

Posted by Matt Shields
Matt Shields
2,332 Points

Enums and Optionals - Task 2 - UIBarButtonItem - Can seem to find the answer to this challenge.

I'm not sure if this challenge has been updated recently, but I can't figure out how to pass it. Here are the instructions with the code I posted. Please help. Thanks.

To the button enum, add a method named toUIBarButtonItem that returns an instance of UIBarButtonItem configured properly.

In the buttons.swift file there is a basic implementation of UIBarButtonItem. You can create buttons with three different styles and titles.

Using the associated values as titles for the button, return a button with style UIBarButtonStyle.Done for the Done member of the Button enum. Similarly for the Edit member, return a UIBarButtonItem instance with the style set to UIBarButtonStyle.Plain.

In both cases you can pass nil for target and action. Once you have a method, call it on the value we created in the previous task and assign it to a constant named doneButton.

Matt Shields
Matt Shields
2,332 Points 
enum BarButton {
    case done(title: String)
    case edit(title: String)

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

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

2 Answers

kjvswift93
kjvswift93
13,515 Points
kjvswift93
kjvswift93
13,515 Points

It should look like this after the second task.

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()
Matt Shields
Matt Shields
2,332 Points
Matt Shields
Matt Shields
2,332 Points

Thanks Kyle but that code didn't pass either.