How to Change back button title on navigation controller in swift3?

Question

I want to change the title of backbutton to any name in swift 3.I tried many ways but none of them worked for me.

self.navigationItem.backBarButtonItem?.titl         


        

Answer 1

Try following steps to set image to your back button..

Output:

Step 1:

Add following code to your AppDelegate

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.

    var backButtonImage = UIImage(named: "Your Image Name")
    backButtonImage = backButtonImage?.stretchableImage(withLeftCapWidth: 0, topCapHeight: 0)
    UIBarButtonItem.appearance().setBackButtonBackgroundImage(backButtonImage, for: .normal, barMetrics: .default)
    UINavigationBar.appearance().barTintColor = UIColor(red: 0.0/255.0, green: 0.0/255.0, blue: 0.0/255.0, alpha: 1.0)
    UINavigationBar.appearance().tintColor = UIColor.white

    return true
}

Step 2:

Add following code to your MainVC

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    title = "Title 1"
    navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName:UIColor.white, NSFontAttributeName:UIFont(name:"HelveticaNeue", size: 20)!]
  }

Step 3:

Add following code to your DestVC or 2ndVC

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    title = "Title 2"
    navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName:UIColor.white, NSFontAttributeName:UIFont(name:"HelveticaNeue", size: 20)!]
  }

Step 4:

Select your navigationBar from your StoryBoard and goto Attribute Inspector. Under Navigation Item change your Back Button name enter a empty space or programatically create a back button with plain title..

Step 5:

Add icon image to your Assets. 1x29pt,2x58pt and 3x87pt. I am not sure about the asset image size.Check with apple doc about the size class..

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Update:

My Similar answer related to this post.

How to customize the navigation back symbol and navigation back text?

Answer 2

In Swift 3.0 put below code in appdelegate didFinishLaunchingWithOptions method its worked perfectly for me

let backImage = UIImage(named: "BackNavigation")?.withRenderingMode(.alwaysOriginal)
UINavigationBar.appearance().backIndicatorImage = backImage
UINavigationBar.appearance().backIndicatorTransitionMaskImage = backImage
UIBarButtonItem.appearance().setBackButtonTitlePositionAdjustment(UIOffsetMake(0, -80.0), for: .default)

The last line will remove the title of Navigation Back Button if you don't want to remove title then just comment it