UINavigationBar back button not showing on iPhone X iOS 11

Question

I am facing an issue, When i run my app on iPhone SE simulator it shows back button on nav bar like this.

But when i run the same app on iPhone X, iPhone 8 and iPhone 8 plus iOS 11 and XCode 9 there is no back button on nav bar and its for all ViewControllers not for specific viewController. Here is the example

Can anyone tell why is this happening.

Answer 1

I had the issue where the back button was only a little bit. In the debugging console it was showing a few broken constraints in the navigation bar.

I found this line in the app delegate to be the issue.

 UIBarButtonItem.appearance().setBackButtonTitlePositionAdjustment( // Remove the text "Back" from the back button so only the back arrow is visible
        UIOffset(horizontal: -100, vertical:-100),
        for: UIBarMetrics.default
    )

try and find any appearance api calls in your code and see if you might be modifying the bar button offsets.