How to add navigation controller programmatically?

Question

I use code below, but it is not loaded:

UIStoryboard * storyboard = [UIStoryboard storyboardWithName:@\"Main\" bundle:nil];
self.mapViewController = [storybo         


        

Answer 1

try as below

UIViewController *bbp=[[UIViewController alloc]initWithNibName:@"UIViewController" bundle:nil];
UINavigationController *passcodeNavigationController = [[UINavigationController alloc] initWithRootViewController:bbp];
// [self.navigationController presentModalViewController:passcodeNavigationController animated:YES];
  [self.navigationController pushViewController:passcodeNavigationController animated:YES];
  [passcodeNavigationController release];