How to adjust navigationbar title and edit the back button

Question

In the image i provided i want to do some minor changes using my viewcontroller. How do i adjust the word haffla so "h" is not blocked out and how do i remove the text "back" from the button!

Answer 1

这是一种从导航栏中的“后退”按钮删除文本的方法。

navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .Plain, target: nil, action: nil)