Change color of Back button in navigation bar

Question

I am trying to change the color of the Settings button to white, but can\'t get it to change.

I\'ve tried both of these:

navigationItem.leftBarButton         


        

Answer 1

I prefer custom NavigationController rather than setting global ui, or put in ViewController.

Here is my solution

class AppNavigationController : UINavigationController {

  override func viewDidLoad() {
    super.viewDidLoad()
    self.delegate = self
  }

  override func viewWillAppear(_ animated: Bool) {

  }

}
extension AppNavigationController : UINavigationControllerDelegate {

  func navigationController(_ navigationController: UINavigationController, willShow viewController: UIViewController, animated: Bool) {
    let backButtonItem = UIBarButtonItem(
      title: "   ",
      style: UIBarButtonItem.Style.plain,
      target: nil,
      action: nil)
    backButtonItem.tintColor = UIColor.gray
    viewController.navigationItem.backBarButtonItem = backButtonItem
  }

  func navigationController(_ navigationController: UINavigationController, didShow viewController: UIViewController, animated: Bool) {

  }

}

Also you don't need to mess with Apple Api like EKEventEditViewController,PickerViewController and so on if you use global settings ui like UIBarButtonItem.appearance().tintColor = .white