How to Change the Uinavigationcontroller Back Button Name

UINavigationController back button custom text?

From this link:

self.navigationItem.backBarButtonItem =
   [[UIBarButtonItem alloc] initWithTitle:@"Custom Title"
            style:UIBarButtonItemStylePlain
           target:nil
           action:nil];

As Tyler said in the comments:

don't do this in the visible view controller, but in the view
controller that you'd see if you hit the back button

How to change the UINavigationController back button name?

In viewWillAppear write this

self.navigationItem.title = @"List View";

And in ViewWilldisapper write this

self.navigationItem.title = @"Back";

It works without story boards.

Change UINavigationBar back button title

Do this in the parent view controller not in the child

Swift

navigationItem.backBarButtonItem = UIBarButtonItem(title: "Back", style: .plain, target: nil, action: nil)

Objetive-C

self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStylePlain target:nil action:nil];

How to change UINavigationController Title & backButton programming?

Place the code below in perform(segue) or viewWillDissappear depended on how do you do your presentation - via Storyboard segue or manually from code.

let backButton = UIBarButtonItem()
backButton.title = "whatever_you_want"
navigationItem.backBarButtonItem = backButton

And in viewDidLoad of your vc2 simply put

navigationItem.title = "Controller title"

UINavigationBar Hide back Button Text

In the interface builder, you can select the navigation item of the previous controller and change the Back Button string to what you'd like the back button to appear as. If you want it blank, for example, just put a space.

You can also change it with this line of code:

[self.navigationItem.backBarButtonItem setTitle:@"Title here"];

Or in Swift:

self.navigationItem.backBarButtonItem?.title = ""

How to set back button text in Swift

The back button belongs to the previous view controller, not the one currently presented on screen.

To modify the back button you should update it before pushing, on the view controller that initiated the segue:

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    let backItem = UIBarButtonItem()
    backItem.title = "Something Else"
    navigationItem.backBarButtonItem = backItem // This will show in the next view controller being pushed
}

Swift 3, 4 & 5:

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    let backItem = UIBarButtonItem()
    backItem.title = "Something Else"
    navigationItem.backBarButtonItem = backItem // This will show in the next view controller being pushed
}

OR

// in your viewDidLoad or viewWillAppear
navigationItem.backBarButtonItem = UIBarButtonItem(
    title: "Something Else", style: .plain, target: nil, action: nil)

How do I change the title of the back button on a Navigation Bar

This should be placed in the method that calls the ViewController titled "NewTitle".
Right before the push or popViewController statement.

UIBarButtonItem *newBackButton = 
        [[UIBarButtonItem alloc] initWithTitle:@"NewTitle" 
                                         style:UIBarButtonItemStyleBordered 
                                        target:nil 
                                        action:nil];
[[self navigationItem] setBackBarButtonItem:newBackButton];
[newBackButton release];

Changing the back button of UINavigaitonBar with MVVM+C

Below is some Playground code that shows a UINavigationController with a custom back button that is an image.

Note that what it does is hides the system provided back button, then substitutes another button that still performs the "back" action but on a custom UINavigationController.

There may be a more efficient way to duplicate the functionality of "back" that doesn't involve a custom class and a custom target-action setup, but I couldn't find one quickly so finding that solution can be left as an exercise for the reader.

import UIKit
import SwiftUI
import PlaygroundSupport

NSSetUncaughtExceptionHandler { error in
    debugPrint(error)
}

class MyNavController : UINavigationController {
    @objc func goBack(sender: Any?) {
        self.popViewController(animated: true)
    }
}

let navDestination1 = UIViewController()
navDestination1.navigationItem.title = "Destination 1"

let navigationController = MyNavController(rootViewController: navDestination1)

if #available(iOS 13.0, *) {
    let appearence = UINavigationBarAppearance()
    appearence.configureWithOpaqueBackground()
    appearence.backgroundColor = .purple
    appearence.shadowColor = nil
    appearence.shadowImage = nil

    navigationController.navigationBar.standardAppearance = appearence
    navigationController.navigationBar.scrollEdgeAppearance = navigationController.navigationBar.standardAppearance
} else {
    navigationController.navigationBar.isTranslucent = false
    navigationController.navigationBar.barTintColor =  .purple
    navigationController.navigationBar.shadowImage = nil
}

let navDestination2 = UITableViewController()
navDestination2.navigationItem.title = "Destination 2"
navDestination2.navigationItem.hidesBackButton = true
navDestination2.navigationItem.leftBarButtonItem = UIBarButtonItem(
    image: UIImage(systemName: "multiply.circle.fill"),
    style: UIBarButtonItem.Style.done,
    target: navigationController,
    action: #selector(MyNavController.goBack))


navigationController.pushViewController(navDestination2, animated: true)

navigationController.view.bounds = CGRect(x: 0,y: 0,width: 320,height: 480)

PlaygroundSupport.PlaygroundPage.current.liveView = navigationController

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