Uibarbuttonitem in Navigation Bar Programmatically

UIBarButtonItem in navigation bar programmatically?

Custom button image without setting button frame:

You can use init(image: UIImage?, style: UIBarButtonItemStyle, target: Any?, action: Selector?) to initializes a new item using the specified image and other properties.

let button1 = UIBarButtonItem(image: UIImage(named: "imagename"), style: .plain, target: self, action: Selector("action")) // action:#selector(Class.MethodName) for swift 3
self.navigationItem.rightBarButtonItem  = button1

Check this Apple Doc. reference

---

UIBarButtonItem with custom button image using button frame

FOR Swift 3.0

    let btn1 = UIButton(type: .custom)
    btn1.setImage(UIImage(named: "imagename"), for: .normal)
    btn1.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
    btn1.addTarget(self, action: #selector(Class.Methodname), for: .touchUpInside)
    let item1 = UIBarButtonItem(customView: btn1)

    let btn2 = UIButton(type: .custom)
    btn2.setImage(UIImage(named: "imagename"), for: .normal)
    btn2.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
    btn2.addTarget(self, action: #selector(Class.MethodName), for: .touchUpInside)
    let item2 = UIBarButtonItem(customView: btn2)  

    self.navigationItem.setRightBarButtonItems([item1,item2], animated: true)

---

FOR Swift 2.0 and older

let btnName = UIButton()
btnName.setImage(UIImage(named: "imagename"), forState: .Normal)
btnName.frame = CGRectMake(0, 0, 30, 30)
btnName.addTarget(self, action: Selector("action"), forControlEvents: .TouchUpInside)

//.... Set Right/Left Bar Button item
let rightBarButton = UIBarButtonItem()
rightBarButton.customView = btnName
self.navigationItem.rightBarButtonItem = rightBarButton

Or simply use init(customView:) like

 let rightBarButton = UIBarButtonItem(customView: btnName)
 self.navigationItem.rightBarButtonItem = rightBarButton

---

For System UIBarButtonItem

let camera = UIBarButtonItem(barButtonSystemItem: .Camera, target: self, action: Selector("btnOpenCamera"))
self.navigationItem.rightBarButtonItem = camera

---

For set more then 1 items use rightBarButtonItems or for left side leftBarButtonItems

let btn1 = UIButton()
btn1.setImage(UIImage(named: "img1"), forState: .Normal)
btn1.frame = CGRectMake(0, 0, 30, 30)
btn1.addTarget(self, action: Selector("action1:"), forControlEvents: .TouchUpInside)
let item1 = UIBarButtonItem()
item1.customView = btn1

let btn2 = UIButton()
btn2.setImage(UIImage(named: "img2"), forState: .Normal)
btn2.frame = CGRectMake(0, 0, 30, 30)
btn2.addTarget(self, action: Selector("action2:"), forControlEvents: .TouchUpInside)
let item2 = UIBarButtonItem()
item2.customView = btn2

self.navigationItem.rightBarButtonItems = [item1,item2]

Using setLeftBarButtonItem or setRightBarButtonItem

let btn1 = UIButton()
btn1.setImage(UIImage(named: "img1"), forState: .Normal)
btn1.frame = CGRectMake(0, 0, 30, 30)
btn1.addTarget(self, action: Selector("action1:"), forControlEvents: .TouchUpInside)
self.navigationItem.setLeftBarButtonItem(UIBarButtonItem(customView: btn1), animated: true);

For swift >= 2.2 action should be #selector(Class.MethodName) ... for e.g. btnName.addTarget(self, action: #selector(Class.MethodName), forControlEvents: .TouchUpInside)

Adding a UIBarButtonItem programmatically

you are adding UIBarButtonItem to a new instance of NavigationController. so it will not appear there.

so in your view controller which you want to handle right navigation bar , under one of these methods:
override func viewDidLoad()
or
override func viewWillAppear

add:

let rightBarButton = UIBarButtonItem(title: "LogIn", style: .plain, target: self, action: #selector(logInPressed))

self.navigationController?.navigationItem.setRightBarButton(rightBarButton, animated: true)

How to programmatically set action for barButtonItem in swift 3?

ex:-

navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Add", style: .plain, target: self, action: #selector(addTapped))

How can I add UIBarButtonItem to my navigation controller programmatically?

With image:

self.navigationItem.setLeftBarButtonItem( (UIBarButtonItem(image:UIImage(named:"image"), style: .Plain, target:self, action:"action:")), animated: false)

With title:

self.navigationItem.setLeftBarButtonItem( (UIBarButtonItem(title:"backButton", style: .Plain, target:self, action:"back_pressed:")), animated: false)

Furthermore, you can assign multiple items for each side:

var test: UIBarButtonItem = UIBarButtonItem(image: UIImage(named:"test"), style: UIBarButtonItemStyle.Plain, target: self, action: "test1:")
var test2: UIBarButtonItem = UIBarButtonItem(image: UIImage(named:"test2"), style: UIBarButtonItemStyle.Plain, target: self, action: "test2:")
navigationItem.rightBarButtonItems = [test1, test2]

When using multiple items you might be interested in:

var spacing : UIBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)

which is used to have similar space between buttons.

Add button to navigationbar programmatically

Inside my UIViewController derived class, I am using the following inside viewDidLoad:

UIBarButtonItem *flipButton = [[UIBarButtonItem alloc] 
                               initWithTitle:@"Flip"                                            
                               style:UIBarButtonItemStyleBordered 
                               target:self 
                               action:@selector(flipView:)];
self.navigationItem.rightBarButtonItem = flipButton;
[flipButton release];

This adds a button to the right hand side with the title Flip, which calls the method:

-(IBAction)flipView

This looks very much like you #3, but it is working within my code.

UIBarButtonItem isn't shown in combination with large title inside navigation bar

You should not set navigation item of NavigationController rather you should set the navigation item of your ViewController which has embedded UINavigationController to it.

So in your ViewController's viewDidLoad write

   override func viewDidLoad() {
        super.viewDidLoad()
        let upButton = UIBarButtonItem(image: UIImage(systemName: "arrow.up"), style: .plain, target: self, action: #selector(handleUpButtonTapped))
        self.navigationItem.rightBarButtonItem = upButton
   }

Or in your case, simply write

private func configureBarButtons() {
    let upButton = UIBarButtonItem(image: UIImage(systemName: "arrow.up"), style: .plain, target: self, action: #selector(handleUpButtonTapped))
    self.navigationItem.rightBarButtonItem = upButton
}

Adding System Image to navigation bar programmatically

You are using the wrong UIImage initializer. The one you are trying to use requires a full path to an image file. You want UIImage(systemName:).

let button = UIBarButtonItem(image: UIImage(systemName: "magnifyingglass.circle") , style: .plain, target: nil, action: nil)

Set UIBarButtonItem target programmatically to previous view Controller

I already found the solution. Instead of using self.navigationController to show the previous controller, I used the general present command to show the view controller.

This is my code, and it solved all of my problems.

let vc = self.storyboard?.instantiateViewController(withIdentifier: "ParentViewController")
self.present(vc!, animated:true, completion:nil)

I hope it will help the others who facing a problems like me.

Create NavBar programmatically with Button and Title Swift

Updated for Swift 5

Create a navigation item instance and set title and right/left buttons to it. After navigation item is configured add it to the navigation bar.

let navBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: view.frame.size.width, height: 44))
view.addSubview(navBar)

let navItem = UINavigationItem(title: "SomeTitle")
let doneItem = UIBarButtonItem(barButtonSystemItem: .done, target: nil, action: #selector(selectorName:))
navItem.rightBarButtonItem = doneItem

navBar.setItems([navItem], animated: false)

---

Related Topics