Could not load NIB in bundle with name 'SecondViewController'

Question

I'm trying to push the Navigator Controller to a different view controller but I keep getting the error saying the nib bundle name can't be loaded. Here's the code I'm using:

SecondViewController *vc1 = [[SecondViewController alloc]
      initWithNibName:NSStringFromClass([SecondViewController class]) bundle:Nil];
[self.navigationController pushViewController:vc1 animated:YES];

Answer 1

You have to pass the name of the nib file, not the class name:

// Assuming there is a properly set up SecondViewController.xib in your project.
SecondViewController *vc1 = [[SecondViewController alloc] 
                            initWithNibName:@"SecondViewController" bundle:nil];
[self.navigationController pushViewController:vc1 animated:YES];

EDIT:

If you're using Storyboards, you have to load your GUI a bit differently:

UIStoryboard *sboard = [UIStoryboard storyboardWithName:@"StoryboardFileName" 
                                                 bundle:nil];
SecondViewController *vc1 = [sboard instantiateInitialViewController];