How to properly set up UINavigationController and add views to the stack

Question

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

self. window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds]];
UINavigationController *navVC = [UINavigationController new];
UIStoryboard *mStoryboard = [UIStoryboard storyboardWithName:@"your storyboard name" bundle:nil];

ViewController *VC1 = [mStoryboard instantiateViewControllerWithIdentifier:@"VC"];


[navVC setViewControllers:[NSArray arrayWithObject:VC1] animated:NO];
[self. window setRootViewController:navVC];

[self. window makeKeyAndVisible];

return YES;
  }

Now this creates a navigationController but when i try to display the secondViewController it does display me the correct Navigation Bar for that view but i see a black background instead of the actual view. Adding secondViewController as a subview works but when i now try to display the third one it does again display me the correct navigation bar with the set title for this view but i still see the secondViewController's view. Now my question how do I add viewController to the navigationController so they are displayed right? do i even have to add them? I've read through the apple class reference but there isn't any code.

Answer 1

try this:

self. window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds]];
UIStoryboard *mStoryboard = [UIStoryboard storyboardWithName:@"your storyboard name" bundle:nil];
ViewController *VC1 = [mStoryboard instantiateViewControllerWithIdentifier:@"VC"];
UINavigationController *navVC = [[UINavigationController alloc] initWithRootViewController:VC1];
[self. window setRootViewController:navVC];
[self. window makeKeyAndVisible];
return YES;

now inside VC1 push the next view controller to your stack with

// EDIT:
UIStoryboard *mStoryboard = [UIStoryboard storyboardWithName:@"your storyboard name" bundle:nil];
ViewController *vC2 = [mStoryboard instantiateViewControllerWithIdentifier:@"VC2"];
[self.navigationController pushViewController:vC2 animated:YES];