RightBarButton在iOS 11中降低了横向方向

Question

I have a problem with the RightBarButton within an iOS-App. Whenever the device is rotated to landscape, that button lowers as seen in the screenshot. While in portrait-orientation everything looks fine.

Any ideas?

Answer 1

try to check the hierarchy view. I surpose RightBarButton's frame didn't work

Answer 2

I still have no idea what caused the misplaced label on orientation-change, but I was able to solve it by using a custom UIButton as my UIBarButtonItem:

let rightButton: UIButton = UIButton(type: .system)
[...]
let rightBarButtonItem: UIBarButtonItem = UIBarButtonItem(customView: rightButton)