How to remove UINavigationBar inner shadow in iOS 7?

Question

Inner shadow example

I\'m trying to put nav bar below the other one to make it look like one tall nav bar. But in iOS 7 UINavigationBar now has inner shadow on top and o

Answer 1

In Swift (tested on iOS9)

self.navigationController!.navigationBar.setBackgroundImage(UIImage(), forBarMetrics: .Default)
self.navigationController!.navigationBar.shadowImage = UIImage()