How to hide UINavigationBar 1px bottom line

Question

I have an app that sometimes needs its navigation bar to blend in with the content.

Does anyone know how to get rid of or to change color of this annoying little ba

Answer 1

Simple solution – Swift 5

1. Create an extension:

   extension UIImage {
   
       class func hideNavBarLine(color: UIColor) -> UIImage? {
   
           let rect = CGRect(x: 0, y: 0, width: 1, height: 1)
           UIGraphicsBeginImageContext(rect.size)
           let context = UIGraphicsGetCurrentContext()
           context?.setFillColor(color.cgColor)
           context?.fill(rect)
   
   
           let navBarLine = UIGraphicsGetImageFromCurrentImageContext()
           UIGraphicsEndImageContext()
           return navBarLine
       }
   }
   

2. Add this to viewDidLoad():

   self.navigationController?.navigationBar.shadowImage = UIImage.hideNavBarLine(color: UIColor.clear)