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iOS Enumerations and Optionals in Swift Introduction to Enumerations Enum Methods

Alexandru Gugoasa
Alexandru Gugoasa
2,941 Points

Hello everybody, I am getting the error :"make sure you assign the results of to a constant done Button"

This is the code submitted:

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()

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(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()

2 Answers

Jorge Solana
Jorge Solana
6,064 Points

Hey Alexandru!

You almost got it perfect! Had the hard thing and miss the easy one :P

The challenge is asking for this: "Once you have a method, call it on the value we created in the previous task and assign it to a constant named button."

So the final declaration would be something like:

let button = done.button()

Good job and keep up the hard work!

Alexandru Gugoasa
Alexandru Gugoasa
2,941 Points

Thank you very much for your answer. I did not pay close attention to the challenge text. Now it works.

Jorge Solana
Jorge Solana
6,064 Points

The key is always in the text hehe :P