Show UITabBar only on UITabBarController.viewControllers

Question

I'm doing it in all tab controllers:

(void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];

    self.tabBarController.tabBar.hidden = NO;
}

-

(void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];

    self.tabBarController.tabBar.hidden = YES;
}

And it's working when I'm going forward controller by controller, but on back way my TabBar disappearing.

well, when you go back, it also runs the `viewWillAppear` for the viewController you will go back to, so it runs the `hidden = NO`. Your rootViewController(s) must not set it hidden on `viewWillAppear`. — Erakk, May 21 '15 at 21:13
when I go back from controller2 to controller1, at first called controller1's viewWillAppear then controller2's viewWillDisappear. But I can figure our the right way to do what I need. — Gegham Harutyunyan, May 21 '15 at 21:18
what if you used `viewDidAppear´ or `viewDidDisappear´ depending on witch you want to appear last — rob180, May 21 '15 at 21:57

score 0 · Answer 1 · answered May 21 '15 at 21:15

0

The UITabBar is disappearing when going back, because the viewWillDisappear: method gets called, which executes the self.tabBarController.tabBar.hidden = YES; line. However, I'm not 100% clear on what you're trying to accomplish, so I'm not sure how to provide a solution other than removing the offending line of code.

answered May 21 '15 at 21:15

socaljoker

304
2
11

I have UITabBarController with 2 controllers: Controller1 and Controller2. In both controller I have add these:(void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; self.tabBarController.tabBar.hidden = NO; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; self.tabBarController.tabBar.hidden = YES; } and when I'm going from controller2 to controller1, my tabBar gets disappeared, cause of it is that at first called controller1's viewWillAppear then controller2's viewWillDisappear. – Gegham Harutyunyan May 21 '15 at 21:22
I want to see tabbar only on UITabBarController.viewControllers, on all other screens it should not be shown – Gegham Harutyunyan May 21 '15 at 21:30
If you have your View Controller structure set up properly, when the UITabBarController is removed from the screen, it will automatically remove the UITabBar since the UITabBar's view is contained in the UITabBarController's view. So it's possible that your view structure is improperly arranged. – socaljoker May 21 '15 at 21:39

rob180 · Answer 2 · 2015-05-21T21:40:28.380

0

something like this should do the trick. edit: since it did not work try this solution and you said that you only want to show on UITabBarController

-(void)viewWillAppear:(BOOL)animated
{
  [super viewWillAppear:animated];

  if([self isKindOfClass:[UITabBarController class]])
  {
    self.tabBarController.tabBar.hidden = NO;
  }else{
    self.tabBarController.tabBar.hidden = YES;
  }
}

edited May 21 '15 at 21:40

answered May 21 '15 at 21:23

rob180

901
1
9
29

I think there should be generic solution. – Gegham Harutyunyan May 21 '15 at 21:27
does it work as you want? if it does i will think of an elegant way. – rob180 May 21 '15 at 21:30
let me see if i got it correct when you go forward it works, but when you go back you want the bar to be hidden but it is visible? – rob180 May 21 '15 at 21:35
when I go back I want the bar to be visible but it is hidden? – Gegham Harutyunyan May 21 '15 at 21:36
see my edit. is that what you are trying to achieve? – rob180 May 21 '15 at 21:41
Thanks for try, but no. I want to see tabbar only on UITabBarController.viewControllers, on all other screens it should not be shown. – Gegham Harutyunyan May 21 '15 at 21:50

Show UITabBar only on UITabBarController.viewControllers

2 Answers2