iOS UITabBar : Remove top shadow gradient line

Question

I implemented a custom UITabBar and I still have this gradient/shadow on top of it. I added

[self.tabBar setBackgroundImage:[UIImage imageNamed:@"navBarBottom.png"]];

which is just changing the background but keeping the shadow gradient.

What am I doing wrong ? Is there anything to specify to get rid of it ?

What I have :

What I want :

Thank you.

Answer 1

Similary in answer for this question ... if You don't want to mess with any kind of 1x1 transparent image, this work's too:

[[UITabBar appearance] setBackgroundImage:[[UIImage alloc] init]]; 
[[UITabBar appearance] setShadowImage:[[UIImage alloc] init]];

In swift:

UITabBar.appearance().shadowImage = UIImage()
UITabBar.appearance().backgroundImage = UIImage()