Dapp

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
	// Override point for customization after app launch
	// Create the window object
	UIWindow *localWindow = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
 
	// Assign the localWindow to the AppDelegate window, then release the local window
	self.window = localWindow;
	[localWindow release];
 
	// Setup the first view controller
	Page1OffViewController *page1OffViewController = [[Page1OffViewController alloc] init];
 
	// Initialise the navigation controller with the first view controller as its root view controller
	navigationController = [[UINavigationController alloc] initWithRootViewController:page1OffViewController];
 
        // This is where we hide the navigation bar! :)
        [navigationController setNavigationBarHidden:YES];
 
	// Navigation controller has copy of view controller, so release our copy
	[page1OffViewController release];
 
	// Add the navigation controller as a subview of our window
	[window addSubview:[navigationController view]];
	[window makeKeyAndVisible];
 
	return YES;
}

- (void)viewWillAppear:(BOOL)animated {
    [self.navigationController setNavigationBarHidden:YES];
 
    [super viewWillAppear:animated];
}

11 Responses to “How to hide Navigation Controller Navigation Bars in code using Xcode 4”

1. velraj says:

   December 22, 2011 at 4:37 am

   hey hi can anyone suggest me a sample code for creating segmented control in Xcode 4.2..

   Reply
   • Cliff says:

     December 23, 2011 at 5:11 am

     One option is to create a segmented control and export it to Xcode. … voila, sample code.

     Another one is to check out the UISegmentedControl class reference from Apple. The trick is to look at the titles at the top and visit the methods for what you need to do.

     For example, ‘initializing a segmented control’, you use – initWithItems:.

     And if you click on it, it will show you what you need to pass.

     Or, you could check out this sample code.

     NSArray *myItems = [NSArray arrayWithObjects:@"One", @"Two", @"Three"];
     UISegmentedControl *segmentedControl = [[UISegmentedControl alloc] initWithItems:myItems];
     [segmentedControl addTarget:self action:@selector(segmentedControlAction:) forControlEvents:UIControlEventValueChanged];
     [segmentedControl setFrame:CGRectMake(0, 0, 320, 44)];
     [self.view addSubview:segmentedControl];
     [segmentedControl release];

     - (void)segmentedControlAction:(id)sender {
     // Handle the segmented control being selected! .
     NSLog(@”User selected option %d”, segmentedControl.selectedSegmentIndex);
     }

     Reply
2. Thomas says:

   October 4, 2011 at 6:40 am

   Thank you very much! – Sorry for the long comment, gotta be annoying to have it filling inhere, but really appreciate the fast reply

   Reply
3. Thomas says:

   September 29, 2011 at 4:20 am

   Thanks for both the app and the guide – helps a bunch!

   - though i’ve run into some amateur trouble:

   When i open my AppDelegate.m, my code setup does not resemble yours.
   Mine looks as follows:

   - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
   // Override point for customization after app launch
   // Create the window object
   UIWindow *localWindow = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

   // Assign the localWindow to the AppDelegate window, then release the local window
   self.window = localWindow;
   [localWindow release];

   // Setup the navigation controllers to load into our tab bar controller
   ForsideViewController *forsideViewController = [[ForsideViewController alloc] init];
   UIImage *tabBarImage1 = [[UIImage alloc] init];
   UITabBarItem *tabBarItem1 = [[UITabBarItem alloc] initWithTitle:@”Nyheder” image:tabBarImage1 tag:1];
   [tabBarImage1 release];
   forsideViewController.tabBarItem = tabBarItem1;
   [tabBarItem1 release];
   UINavigationController *navigationController1 = [[UINavigationController alloc] initWithRootViewController:forsideViewController];
   [forsideViewController release];

   FeaturedViewController *featuredViewController = [[FeaturedViewController alloc] init];
   UIImage *tabBarImage2 = [[UIImage alloc] init];
   UITabBarItem *tabBarItem2 = [[UITabBarItem alloc] initWithTitle:@”Aktuelle” image:tabBarImage2 tag:2];
   [tabBarImage2 release];
   featuredViewController.tabBarItem = tabBarItem2;
   [tabBarItem2 release];
   UINavigationController *navigationController2 = [[UINavigationController alloc] initWithRootViewController:featuredViewController];
   [featuredViewController release];

   KategoriViewController *kategoriViewController = [[KategoriViewController alloc] init];
   UIImage *tabBarImage3 = [[UIImage alloc] init];
   UITabBarItem *tabBarItem3 = [[UITabBarItem alloc] initWithTitle:@”Kategorier” image:tabBarImage3 tag:3];
   [tabBarImage3 release];
   kategoriViewController.tabBarItem = tabBarItem3;
   [tabBarItem3 release];
   UINavigationController *navigationController3 = [[UINavigationController alloc] initWithRootViewController:kategoriViewController];
   [kategoriViewController release];

   ParkeringViewController *parkeringViewController = [[ParkeringViewController alloc] init];
   UINavigationController *navigationController4 = [[UINavigationController alloc] initWithRootViewController:parkeringViewController];
   [parkeringViewController release];

   tabBarController = [[UITabBarController alloc] init];
   tabBarController.viewControllers = [NSArray arrayWithObjects:navigationController1, navigationController2, navigationController3, navigationController4, nil];

   [navigationController1 release];
   [navigationController2 release];
   [navigationController3 release];
   [navigationController4 release];

   // Add the tab bar controller as a subview of our window
   [window addSubview:[tabBarController view]];
   [window makeKeyAndVisible];

   return YES;
   }

   - could you in any way assist me how to hide the NavigationBar ? It works for me in a selfwritten project, where i’ve manually initialized the Bar, but it just can’t get it to work out here.

   Anyways, i’m looking forward to the next update!

   Cheers

   Reply
   • Cliff says:

     September 29, 2011 at 4:25 am

     You’ll need to hide it for each Navigation Controller. Do it right after you alloc the navigation controller, so for example…

     UINavigationController *navigationController2 = [[UINavigationController alloc] initWithRootViewController:featuredViewController];
     // Hide nav bar here
     [navigationController2 setNavigationBarHidden:YES];
     [featuredViewController release];

     UINavigationController *navigationController3 = [[UINavigationController alloc] initWithRootViewController:kategoriViewController];
     //Hide nav bar here
     [navigationController3 setNavigationBarHidden:YES];
     [kategoriViewController release];

     Reply
4. catarino says:

   September 14, 2011 at 2:20 pm

   cool. thx

   Reply
5. steven says:

   August 26, 2011 at 6:36 pm

   when is the next update?

   Reply
   • Cliff says:

     August 28, 2011 at 3:38 am

     Working on it now . Expect it out in the next two weeks.

     Reply
6. Brian says:

   July 3, 2011 at 12:09 pm

   Thanks Works perfectly!

   Reply
7. Cliff says:

   July 3, 2011 at 2:42 am

   Basically you want to be changing the ‘Navigation Bar Style’ and the ‘Navigation Bar Translucent’ property to do this. Example code of how to do this would be:

   [navigationController.navigationBar setNavigationBarStyle:UIBarStyleBlack];
   [navigationController.navigationBar setTranslucent:YES];

   Reply
8. Brian says:

   July 3, 2011 at 1:32 am

   Thanks for the guide, my question is, how do you make the navigation bar black transparent?

   Reply