问题
I am customizing the UITabBar. I used my custom image in UITabBarItem. The problem is whether there is a gradient/gloss on the item. I checked Apple's app Store didn't had any of this glossy effect on its UITabBarItem. How can i remove gradient from UITabBarItem?
回答1:
You just need to put clear image as `yourImage', it may help you
[[UITabBar appearance] setSelectionIndicatorImage:[UIImage {yourImage}]]
Edit i just googled it and found lot of similar questions. You can also try below code of lines
[[UITabBar appearance] setShadowImage:[UIImage imageNamed:@"Tappbarimage.png"]];
You'll have to provide the images yourself to the UITabBarItem with using this tabbarMethod setFinishedSelectedImage:withFinishedUnselectedImage:.
There's no other way to affect the processing it does to the images besides changing the color of the gradient with UITabBar's selectedImageTintColor appearance property.
来源：https://stackoverflow.com/questions/16979121/remove-gradient-gloss-from-uitabbaritem