How do I set title for UIBarButtonItem? - ios

Question

I'm a beginner iPhone developer.
How can I programmatically set the title for the UIBarButtonItem?
My code is the following:
self.navigationItem.rightBarButtonItems =
UIBarButtonItem(
barButtonSystemItem: .Cancel, target: self,
action: "barButtonItemClicked:")
#IBAction func barButtonItemClicked(sender: UIBarButtonItem) {
//print something
}

Answer 1

Use different initialiser that allows you to specify the title:
UIBarButtonItem(title: "title", style: .Plain, target: self, action: "barButtonItemClicked:")
Swift 3.1 Update
UIBarButtonItem(title: "title", style: .plain, target: self, action: #selector(barButtonItemClicked))

Answer 2

Swift 2 answer
You could just add the following to viewDidLoad:
// Some text
self.barButtonItemClicked.title = "Right Button!"
OR
// A Unicode Gear Symbol
// See: http://graphemica.com/%E2%9A%99
self.barButtonItemClicked.title = "\u{2699}"
The ViewController.Swift code below would set the name barButtonItemClicked you used. I used a UIBarButtonItem to show how to set the title. But it is trivial to adapt it for a function.
import UIKit
class ViewController: UIViewController {
// Please make sure the line below is properly connected to your Storyboard!
#IBOutlet weak var barButtonItemClicked: UIBarButtonItem!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// Set the text of the NavBarButtonItem Title
self.barButtonItemClicked.title = "Right Button!"
// Gear Icon
// self.barButtonItemClicked.title = "\u{2699}"
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}

Answer 3

Swift 4:
#IBOutlet var saveButton: UIBarButtonItem!
saveButton.title = "Saved"

Answer 4

In my case, I wanted to toggle between the Edit|Done.
However, I couldn’t use the leftBarButtonItem because I already had another UIBarButtonItem.
What I did is the following:
1- Create #IBOutlet weak var edit: UIBarButtonItem!
2- Then a variable to hold the state: var isEditingMode = false
3- Now in the viewDidLoad:
override func viewDidLoad() {
…
self.edit.action = #selector(self.toogleEditor(_:))
self.edit.title = "Edit"
self.setEditing(isEditingMode, animated: true)
…
}
I initialize the edit.action Selector to my custom function toogleEditor. I want to be able to change the title whenever an action occur.
4- Create an IBAction:
#IBAction func toogleEditor(sender: AnyObject) {
if isEditingMode
{
isEditingMode = false
self.edit.title = "Edit"
}
else
{
isEditingMode = true
self.edit.title = "Done"
}
self.setEditing(isEditingMode, animated: true)
}
This function is triggered each time the user click the UIBarItemButton.
The only thing to do is use the setEditing(…) to change the behaviour of the UITableViewController.

Answer 5

If anyone wondering how to do it from the storyboard:
Try to edit the "Title" attribute in "Attributes Inspector" as shown below:

Answer 6

from the docs
init(title title: String?,
style style: UIBarButtonItemStyle,
target target: AnyObject?,
action action: Selector)