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:@\"navBarBotto

Answer 1

Calling [[UITabBar appearance] setShadowImage:] will customise all UITabBar instances in your app.

If you want to customize just one UITTabBar, you can do this:

[self.tabBarController.navigationController.navigationBar setShadowImage:[UIImage new]];

Answer 2

In your view controller or view controllers or BasicViewController that most of the viewcontrollers inherit in the viewDidLoad just put these 2 lines:

[[UITabBar appearance] setBackgroundImage:[UIImage imageNamed:@"tab_bar_background"]];
[[UITabBar appearance] setShadowImage:[UIImage imageNamed:@"transparent_shadow"]];

Be sure transparent_shadow@2x.png is an image 1x1 or 2x2 transparent and the tab_bar_background@2x.png is an image 640x100 as the bottom bar is 50px in height.

Works on iOS 9.3

Answer 3

Here's another easy to implement answer:

[self.tabBar setValue:@(YES) forKeyPath:@"_hidesShadow"];

Worked for me.

Answer 4

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()

Answer 5

Try this, ** Objective-C **

//Remove shadow image by assigning nil value.
[[UITabBar appearance] setShadowImage: nil];

// or 

// Assing UIImage instance without image reference
[[UITabBar appearance] setShadowImage: [[UIImage alloc] init]];

** Swift **

//Remove shadow image by assigning nil value.
UITabBar.appearance().shadowImage = nil

// or 

// Assing UIImage instance without image reference
UITabBar.appearance().shadowImage = UIImage()

Here is apple guideline for shadowImage.

@available(iOS 6.0, *)
open var shadowImage: UIImage?

Default is nil. When non-nil, a custom shadow image to show instead of the default shadow image. For a custom shadow to be shown, a custom background image must also be set with -setBackgroundImage: (if the default background image is used, the default shadow image will be used).

Answer 6

Swift

Try this for your custom tab bar. It will hide horizontal shadow line.

self.tabBar.setValue(true, forKey: "_hidesShadow")

Objective C

[self.tabBar setValue:@(YES) forKeyPath:@"_hidesShadow"];