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iOS Enumerations and Optionals in Swift Introduction to Enumerations Enum Methods

Posted by Mitch Little
Mitch Little
11,870 Points

Looking for a High Level Overview of this code.

Although I have completed the code challenge, I am still slightly confused on what is actually happening. I think this is down to the wording of the question.

However if someone could provide a clear summary of what is going on it would really help my understanding.

    case done(title: String)
    case edit(title: String)

    func button() -> UIBarButtonItem {
        switch self {
        case .done(let title): // Using the associated values as titles for the button
            return UIBarButtonItem(title: title, style: .done, target: nil, action: nil) // Return a button with style UIBarButtonStyle.done
        case .edit(let title): // Using the associated values as titles for the button
            return UIBarButtonItem(title: title, style: .plain, target: nil, action: nil) // Return a button with style UIBarButtonStyle.plain
        }
    }
}

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

Thank You,

Mitch