Create a custom left back button on UINavigationBar WITH the standard arrow on the left

Question

When I create a custom back button, I use the following code:

    UIBarButtonItem *leftButton = [[UIBarButtonItem alloc]initWithTitle:@\"Yeah\" style:UIBarButton         


        

Answer 1

Finally, here's the snippet I use to define the back button's title with the standard left arrow in the current view, not in the parent view :

- (void)viewDidLoad {
    [super viewDidLoad];

    [self setTitle:@"Current View"];

    // Get the previous view controller
    UIViewController *previousVC = [self.navigationController.viewControllers objectAtIndex:self.navigationController.viewControllers.count - 2];

    // Create a UIBarButtonItem
    UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"FooBar" style:UIBarButtonItemStyleBordered target:self action:@selector(yourSelector)];

    // Associate the barButtonItem to the previous view
    [previousVC.navigationItem setBackBarButtonItem:barButtonItem];
}

---

Here's the result :

Note : However, since it's not possible to add an action on a backBarButtonItem, you can refer to this great post if you want it to.

Updated for Swift

// Prev - no chevron...
//navigationItem.leftBarButtonItem = UIBarButtonItem(title: "Back !", style: .plain, target: self, action: #selector(backPressed))

// adds the chevron
let vc = navigationController?.viewControllers.first
let button = UIBarButtonItem(title: "Go Back", style: .plain, target: self, action: #selector(backPressed))
vc?.navigationItem.backBarButtonItem = button