UINavigationBar set custom shadow in AppDelegate.swift

Question

I want to set some shadow to the bottom of my UINavigationBar for the whole application. Here is what I\'ve tried but it doesn\'t work:

func application(appl         


        

Answer 1

Easy, works on Swift 3:

    navigationController?.navigationBar.layer.shadowColor = UIColor.black.cgColor
    navigationController?.navigationBar.layer.shadowOpacity = 1
    navigationController?.navigationBar.layer.shadowOffset = CGSize.zero
    navigationController?.navigationBar.layer.shadowRadius = 10