Hiding the Back Button on a TabbedBarController in Swift - ios

Question

I've a NavigationViewController which segues to a TabbedBarController. I don't want to show the back button on the TabbedBarController.
I've tried both these code snippets in Swift , neither works,
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.tabBarController?.navigationItem.hidesBackButton = true
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.navigationItem.hidesBackButton = true
}
Here's a snap shot,
Here's the tabbed bar view controller,
How can I hide the back button on the Tabbed bar view controller. How can I hide the back button on my tabbed bar controller?

Answer 1

There are quite many ways to do what you want, but what I'm 99.9% sure that would work is that you can add a barButton in your leftBarButtonItems to replace the default backButton of your navigationController:
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.navigationItem.leftBarButtonItems = [UIBarButtonItem(title: "", style: .plain, target: nil, action: nil)]
}
Also, when overriding any lifecycle methods of a controller, you might not want to miss anything from the parent class, so don't forget to call its super equivalent like super.viewWillAppear(animated)
I hope this helps!
EDIT: Two ways to do what you want in tabBarController and since I can already picture the flow of your project.
Put the code inside the viewWillAppear of your tabBarController. This means that you might need to subclass the UITabBarController. So it should be like this:
class MyTabBarController: UITabBarController {
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.navigationItem.leftBarButtonItems = [UIBarButtonItem(title: "", style: .plain, target: nil, action: nil)]
}
}
You should present modally your tabBarController (this is more ideal).