I want to remove the text from the back button, but I want to keep the icon. I have tried
let backButton = UIBarButtonItem(title: \"\", style: UIBarButtonIt
I know this already has an answer, but you can also do it in code (in case you're working with nibs)
navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .plain, target: nil, action: nil)
Add the above in the first view controller.
Note that you need to do this for each view controller that is pushing. So if you have 3 view controllers, and you want to remove the back text from all of them, you'll have to add the line in view controller 1 and 2.