How to hide / show tab bar using navigation bar in iOS?

Question

I have views with a navigation bar and a tab bar. What I would like to do is hide the tab bar on a specific view and show the tab bar again when the user changes the view.

I saw a code snippet to hide the tab bar:

-(void)makeTabBarHidden:(BOOL)hide { // Custom code to hide TabBar if ( [tabBarController.view.subviews count] < 2 ) { return; } UIView *contentView; if ( [[tabBarController.view.subviews objectAtIndex:0] isKindOfClass:[UITabBar class]] ) { contentView = [tabBarController.view.subviews objectAtIndex:1]; } else { contentView = [tabBarController.view.subviews objectAtIndex:0]; } if (hide) { contentView.frame = tabBarController.view.bounds; } else { contentView.frame = CGRectMake(tabBarController.view.bounds.origin.x, tabBarController.view.bounds.origin.y, tabBarController.view.bounds.size.width, tabBarController.view.bounds.size.height - tabBarController.tabBar.frame.size.height); } tabBarController.tabBar.hidden = hide; } 

from: http://nickwaynik.com/iphone/hide-tabbar-in-an-ios-app/

I call this in a view in which I want the tab bar to be hidden

 [self makeTabBarHidden:YES]; 

It works great when I show / hide it in this view, but when I go back to the previous view, the tab bar is also hidden. I tried calling this function in the view viewDidUnload, viewWillDisappear, viewDidDisappear, but nothing happens. The same is true when a function is called in the previous view viewDidLoad, viewWillAppear, viewDidAppear function.

Answer 1

Instead, you can set UIViewController.hidesBottomBarWhenPushed:

 DetailViewController *detailViewController = [[DetailViewController alloc] init]; detailViewController.hidesBottomBarWhenPushed = YES; [[self navigationController] pushViewController:detailViewController animated:YES]; [detailViewController release]; 

Answer 2

You can also do this in the storyboard interface builder. Select the view controller that you want to hide the tab bar, and then select "Hide the bottom bar when pressed."

Answer 3

I just created a category in the UITabBarController that allows you to hide the TabBar, optionally with animation:

https://github.com/idevsoftware/Cocoa-Touch-Additions/tree/master/UITabBarController_setHidden

It adds the tabBarHidden property (with isTabBarHidden as the recipient) and the method - (void)setTabBarHidden:(BOOL)hidden animated:(BOOL)animated .

Answer 4

 self.navigationController.hidesBottomBarWhenPushed=YES; 

Add this line to viewdidload or viewWillAppear this will hide your tab at the bottom.

Answer 5

Swift 3: Set panel hiding in viewwillAppear or viewdidappear

 self.tabBarController?.tabBar.isHidden = true 

Answer 6

The same property is available in the attribute inspector when you click on your view controller in your Xib or storyboard file.

Answer 7

try this for hide / show;

 -(void)viewWillDisappear:(BOOL)animated{ self.hidesBottomBarWhenPushed = NO; } -(void)viewWillAppear:(BOOL)animated{ self.hidesBottomBarWhenPushed = YES; }