问题
Is there any way to adjust the position of the UITabBar badge in iOS 7? The badge now blocks the tab bar icon a bit more than I would like.
iOS 6:
iOS 7:
回答1:
If possible, can you provide the method by which you are setting the tab bar image?
I had the same problem that you did, and fixed it by using UIImageRenderingModeAlwaysOriginal:
UIImage *image = // Your tab bar item image
UIImage *selected = // Your selected tab bar item image
image = [image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
selected = [selected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
controller.tabBarItem = [[UITabBarItem alloc] initWithTitle:title
image:image
selectedImage:selected];
Cheers!
回答2:
It looks like the badge is placed in a certain position relative to the image. So if you have no image, the badge is in the upper left corner of the tabBarItem.
So - to position the badge, adjust the border of blank pixels around the .png you're using for the tabBarItem image.
回答3:
It's not possible to adjust appearance of the badge.
If you really want to have it different, I think implementing custom overlay on UITabBar should be pretty easy. That way you could put there any custom text, not just numbers.
回答4:
iOS 7 SDK depreciate 3 key method we used to customize tabbar
- (void)setFinishedSelectedImage:(UIImage *)selectedImage withFinishedUnselectedImage:(UIImage *)unselectedImage
- (UIImage *)finishedUnselectedImage
- (UIImage *)finishedSelectedImage
They suggest their alternatives in docs as @Daniel Amitay suggests.
Documentation is here
https://developer.apple.com/library/ios/documentation/uikit/reference/UITabBarItem_Class/DeprecationAppendix/AppendixADeprecatedAPI.html#//apple_ref/occ/instm/UITabBarItem/setFinishedSelectedImage:withFinishedUnselectedImage:
来源：https://stackoverflow.com/questions/19165671/ios-7-uitabbar-badge-position