Why is the UINavigationBar turning black?

Question

Problem:

I have a UITableViewController embedded in a UINavigationController. Pressing a cell in the table view switches to another table view controller. In said table view controller, I'd like for the navigation bar to be invisible while still keeping the tab bar items so I added the following to its viewDidLoad():

self.navigationController?.navigationBar.setBackgroundImage(UIImage(), forBarMetrics: .default)
self.navigationController?.navigationBar.shadowImage = UIImage()
self.navigationController?.navigationBar.isTranslucent = true
self.navigationController?.navigationBar.tintColor = .black 

For the first UITableViewController, I'd like the navigation bar to be normal so in its viewDidAppear() I did the following:

self.navigationController?.navigationBar.isTranslucent = false

Everything is working fine except during the transition (which I am doing via performSegueWithIdentifier) the navigation bar on the first view controller disappears into blackness which looks ugly to be honest. Is there any way to prevent/fix this?

Screenshot:

Answer 1

I had a very similar problem recently. Try setting self.navigationController?.navigationBar.translucent = true in both view controllers and self.edgesForExtendedLayout = UIRectEdgeNone.
Storyboard version: Extended Edges - Under Top Bars