title: Remove Navigation Bar shadow Colour on iPhone 6/6plus
body: <p><img src="https://i.stack.imgur.com/2mekR.png" alt="enter image description here"></p>
  
  <p>I'm trying to remove this white stroke. I've previously fixed this using </p>
  
  <pre><code>[self.navigationController.navigationBar setShadowImage:[[UIImage alloc] init]];
  </code></pre>
  
  <p>and it work perfectly on iPhone 4s,5,5s and iOS 7/8. But for some reason on iPhone 6/6+ that whte shadow is still there.
  I've also tried this to no result. It just makes the shadow a darker colour than my current navBar bgColour (white: 0 alpha 0.9).</p>
  
  <pre><code>UIView * bgView = [[UIView alloc] initWithFrame:CGRectMake(0, self.navigationController.navigationBar.height, self.navigationController.navigationBar.width, 1)]; 
  bgView.backgroundColor = [UIColor colorWithWhite:0 alpha:0.9];
  [self.navigationController.navigationBar addSubview:bgView];
  [self.navigationController.navigationBar setShadowImage:nil];
  </code></pre>
  
  <p>Any ideas?</p>