Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Swift 2.0 Enumerations and Optionals Introduction to Enumerations Enum Methods

Quentin L'eilde
Quentin L'eilde
1,907 Points

What is wrong with my code ?

Hi everyone.

I really don't have a clue of what is wrong with my method. Is it the format of my returns ?

(My code is in the enums.swift file)

Thanks for your help

buttons.swift
import Foundation

enum UIBarButtonStyle {
    case Done
    case Plain
    case Bordered
}

class UIBarButtonItem {

    var title: String?
    let style: UIBarButtonStyle
    var target: AnyObject?
    var action: Selector

    init(title: String?, style: UIBarButtonStyle, target: AnyObject?, action: Selector) {
        self.title = title
        self.style = style
        self.target = target
        self.action = action
    }
}
enums.swift
enum Button {
    case Done(String)
    case Edit(String)

    func toUIBarButtonItem() -> UIBarButtonItem {
      switch self {
        case .Done(let done): return UIBarButtonItem(title: done, style: UIBarButtonStyle.Done, target: nil, action: nil)
        case .Edit(let edit): return UIBarButtonItem(title: edit, style: UIBarButtonStyle.Plain, target: nil, action: nil)
      }
    }
}

let doneButton = Button.Done("Done").toUIBarButtonItem()

1 Answer

Martin Wildfeuer
PLUS
Martin Wildfeuer
Courses Plus Student 11,071 Points

Although your code works and it's definitely the shortest way to create your done button, the assignment asks for using the done constant you assigned in the first task Button.Done("Done") in order to create the doneButton.

So this should work:

let done = Button.Done("Done")
let doneButton = done.toUIBarButtonItem()

Hope that helps :)

Quentin L'eilde
Quentin L'eilde
1,907 Points

ok you were right ! I'm french so I certainly misunderstood this instruction... Thanks !