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iOS

Posted by william fashanu
william fashanu
2,108 Points

I dont understand please help

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.

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 Button.Done("Done"): return UIBarButtonItem(title: "wale", style: UIButtonItem.Done, target: 1, action: true)
    case Button.Edit("Edit"): return UIBarButtonItem(title: <#T##String?#>, style: <#T##UIBarButtonStyle#>, target: <#T##AnyObject?#>, action: <#T##Selector#>)
    }
}

}

let done = Button.Done("Done")

above is my code so far

william fashanu
william fashanu
2,108 Points

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) }

THIS IS THE CODE WITHOUT ANY ALTERATIONS

1 Answer

ANDREA HEMPHILL
ANDREA HEMPHILL
14,484 Points
ANDREA HEMPHILL
ANDREA HEMPHILL
14,484 Points

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

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

    case .Edit("is"): return UIBarButtonItem(title: "wall", style: UIBarButtonStyle.Plain, target: nil, action: nil)

    default: "nothing"
    }
    return UIBarButtonItem(title: "h", style: UIBarButtonStyle.Bordered, target: nil, action: Selector(("nil")))
}

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

ANDREA HEMPHILL
ANDREA HEMPHILL
14,484 Points

This is the answer !