Back button not appearing on UINavigationController

Question

I have a UINavigationController setup in my AppDelegate:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSD         


        

Answer 1

You must think of the navigation controller as a stack of navigation controllers each controlling one screen full of information. You instantiate the navigation controller with the

-(id)initWithRootViewController:(UIViewController *)rootViewController

method. You specify the root view controller in this call. Then you add the navigation controller's view as a subview to the window, like you did before.

If you want to show your second screen you push another view controller on the stack by using

-(void)pushViewController:detailViewController animated:YES

method.