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

For Swift, using Erzekiel's answer as the basis for this, you can simplify it to -

extension UIViewController {

    func setBackButtonTitle(to title: String) {
        let barButtonItem = UIBarButtonItem(title: title, style: .plain, target: self, action: nil)
        self.navigationItem.backBarButtonItem = barButtonItem
    }
}

This should be called from the parent viewController, eg in viewWillDisappear -

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    self.setBackButtonTitle(to: "Back"))
}