What is the design pattern for navigating between ViewControllers? - ios7

Question

I currently have 1 storyboard which contains 2 view controllers: ViewController and TableViewController. The ViewController is the login view, and the TableViewController is the page that displays results (results view).
Currently, I did not create a segue from the login view to the results view. Instead, on the login view, after a user presses the login button and is authenticated, I programmatically push to the results view as follows.
XYZResultsTableViewController* controller = [[XYZResultsTableViewController alloc]init];
UINavigationController *navController = self.navigationController;
[navController popViewControllerAnimated:NO];
[navController pushViewController:controller animated:YES];
Indeed, the results view shows, but there is a "< Back" button at the top left, which, if pressed, goes back to the login view.
So, my question are:
How do I get rid of the login view from the view stack? (so the back button on the results view does not show)
Is this "programmatic" way of navigating between views "bad"? Meaning, should I rely on the storyboard and segues instead? Should I navigate to a new storyboard (I've seen this question asked on SO, though I haven't visited it yet)?
I'm a newcomer, so any help is appreciated.

Answer 1

If you don't want to use the navigation stack, you have to use presentViewController instead of pushViewController
XYZResultsTableViewController* controller = [[XYZResultsTableViewController alloc]init];
[viewController1 presentViewController:controller animated:YES];//viewcontroller1 is current view controller
Never use the code below unless you want to have the navigationController stack in viewController you are showing
/*XYZResultsTableViewController* controller = [[XYZResultsTableViewController alloc]init];
UINavigationController *navController = self.navigationController;
[navController popViewControllerAnimated:NO];
[navController pushViewController:controller animated:YES]; */
for more information on this difference between presentViewController and UINavigationController?
http://developer.apple.com/library/ios/#documentation/uikit/reference/UINavigationController_Class/Reference/Reference.html