iOS14 missing TabBar on popping multiple ViewControllers

Question

Created Sep ’20

Replies 18

Boosts 0

Views 9.3k

Participants 20

Seems like there is a confirmed bug on Xcode12 + iOS14.

I have a UINavigationController on each item of a UITabBar, and I've set hidesBottomBarWhenPushed to YES on every secondary ViewControllers, so the TabBar will only be shown on the rootViewController of navigationController. But when I try popping multiple ViewControllers, like pop C from stacks like A-B-C, I found that the TabBar just missing on A.

Also another weird part, when I print navigationController.viewControllers in viewWillDisappear: method on C, I found it printing like "C-A". How C moved to the top of the array??

This is confirmed on a simple demo app, wonder when it will be fixed.

Boost

Answer 1

francoisfromnyc OP

Nov ’20

We had the same problem with Xcode 12 and iOS 14.0 & 14.1 but it looks like it's been resolved on iOS 14.2.

Could anyone confirm that?

Thanks for the workaround tho!

6

Answer 2

adam-rover OP

Dec ’20

@francoisfromnyc I am also seeing this fixed in Xcode 12 + iOS 14.2!

0

Answer 3

tick_tick OP

Feb ’21

I have meet a similar problem. After call popToRootViewControllerAnimated: , then call pushViewController: method which had set hidesBottomBarWhenPushed = YES, but the tabbar still shows.
I fixed it by rewrite popToRootViewControllerAnimated: method, and add thd following code:

Code Block - (NSArray<UIViewController *> *)popToRootViewControllerAnimated:(BOOL)animated {
  NSInteger currentTab = (NSInteger)self.tabBarController.selectedIndex;
  self.tabBarController.selectedIndex = labs(currentTab - 1);
  self.tabBarController.selectedIndex = currentTab;
  return [super popToRootViewControllerAnimated:animated];
}

0