Strange behaviour of UINavigationController when the applications rootViewController is a tabBarController - ios

Question

I try to push a UIViewController onto a UINavigationController. The NavigationBar changes (i.e. a back-button appears) but the view is not pushed (*).
I have a UITabBarController as my applications RootViewController.
When I switch to another tab and then switches back, the view (*) gets pushed.
I have never seen this behaviour before. My problem is exactly the same as this, however the methods that solved that issue did not solve mine.
Initially
After I press the row
I understand that this question might be related to issues in AppDelegate, therefore i post the code I use.
Code:
in AppDelegate:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[MagicalRecord setupCoreDataStackWithStoreNamed:#"DBModel"];
/* CONTACTS LIST CONTROLLER */
BoonContactListViewController *contactListViewController = [[BoonContactListViewController alloc] initWithNibName:nil bundle:nil];
UINavigationController *contactListNavigationController = [[UINavigationController alloc] initWithRootViewController:contactListViewController];
[contactListNavigationController setValue:[[BoonNavigationBar alloc]init] forKeyPath:#"navigationBar"];
contactListNavigationController.tabBarItem.title = [NSLocalizedString(#"CONTACTS", nil) capitalizedString];
contactListNavigationController.tabBarItem.image = [UIImage imageNamed:#"menu_contacts.png"];
/* INVITATIONS */
BoonInvitationListViewController *invitationListController = [[BoonInvitationListViewController alloc] initWithNibName:nil bundle:nil];
UINavigationController *invitationNavigationController = [[UINavigationController alloc] initWithRootViewController:invitationListController];
[invitationNavigationController setValue:[[BoonNavigationBar alloc]init] forKeyPath:#"navigationBar"];
invitationNavigationController.tabBarItem.title = [NSLocalizedString(#"SETTINGS", nil) capitalizedString];
invitationNavigationController.tabBarItem.image = [UIImage imageNamed:#"menu_invitations.png"];
/* SETTINGS */
BoonSettingsViewController *settingsViewController = [[BoonSettingsViewController alloc] initWithNibName:nil bundle:nil];
UINavigationController *settingsNavigationController = [[UINavigationController alloc] initWithRootViewController:settingsViewController];
[settingsNavigationController setValue:[[BoonNavigationBar alloc]init] forKeyPath:#"navigationBar"];
settingsNavigationController.tabBarItem.title = [NSLocalizedString(#"SETTINGS", nil) capitalizedString];
settingsNavigationController.tabBarItem.image = [UIImage imageNamed:#"menu_settings.png"];
/* TAB BAR */
BoonTabBarViewController *tabBarController = [[BoonTabBarViewController alloc] init];
tabBarController.viewControllers = #[contactListNavigationController, invitationNavigationController, settingsNavigationController];
[self.window setRootViewController:tabBarController];
[self.window makeKeyAndVisible];
[tabBarController showLogin];
return YES;
}
EDIT:
In the viewController that i am trying to push, neither viewWillAppear, viewDidLoad nor viewDidAppear is called.
If I use presentViewController: animated: completion: I get the preferred behaviour, id rather not though
EDIT 2
How I push my new VC
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
BoonContactInfoViewController *contactInfoViewController = [[BoonContactInfoViewController alloc] initWithNibName:nil bundle:nil];
NSLog(#"NAV %#", self.navigationController);
[self.navigationController pushViewController:contactInfoViewController animated:YES];
}
EDIT 3
It is only the initial tab that cannot push ... if i swap places of the first and second tab, i can push a view controller using in the way i do above.
EDIT 4
It works if i (in my tabBarController) calls
self.selectedIndex = 1;
self.selectedIndex = 0;
EDIT 5
- (void)showLogin
{
if([BoonUserHandler getLogin].length > 0 && [BoonUserHandler getPassword].length > 0){
return;
}
BoonWelcomeViewController *welcomeWC = [[BoonWelcomeViewController alloc] initWithNibName:nil bundle:nil];
UINavigationController *welcomeNavigationController = [[UINavigationController alloc] initWithRootViewController:welcomeWC];
[welcomeNavigationController setNavigationBarHidden:YES];
[self presentViewController:welcomeNavigationController animated:NO completion:nil];
}

Answer 1

What version of iOS are you developing for?
I'd first ask why you're hacking in a nav bar using:
[settingsNavigationController setValue:[[BoonNavigationBar alloc]init] forKeyPath:#"navigationBar"];
rather than the iOS5+ UINavigationController method:
- (instancetype)initWithNavigationBarClass:(Class)navigationBarClass toolbarClass:(Class)toolbarClass
But my overall suggestion would be to remove all this code and use a storyboard. This looks like the perfect opportunity.

Answer 2

I think you are getting wrong Navigation controller to push that's why it showing this problem..
You have to fetch right navigation controller from tab controller
self.tabBarController.selectedIndex = 0;
just change tab controller selected index