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iOS Swift 2.0 Enumerations and Optionals Introduction to Enumerations Enum Methods

Derik Linch
Derik Linch
8,437 Points

This code isn't compiling, and the preview has no output as to why.

The code isn't passing the compiler, and I don't know why. I pasted it into xcode and it didn't have anything syntactically incorrect according to xcode.

The preview output.html is completely empty, and the code seems to be modeled correctly off the code I wrote in the tutorial.

I'm at a loss, any help would be appreciated.

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
enum Button {
    case Done(String)
    case Edit(String)

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

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

1 Answer

Derik Linch
Derik Linch
8,437 Points

Ok, I feel dumb now.

I was supposed to call .toUIBarButtonItem() on done. so let done = Button.Done("Done") let doneButton = done.toUIBarButtonItem()