AppDelegate, rootViewController and presentViewController

Question

I\'m doing the Facebook integration tutorial, I want to show my MainViewViewController if the user has a valid token for the current state otherwise I want to show LoginView

Answer 1

You can launch a new viewController from root like this in Objective-C

UIViewController *presenter = ((AppDelegate *)[[UIApplication sharedApplication] delegate]).window.rootViewController;

[presenter presentViewController:yourViewController animated:YES completion:nil];

Don't forget to add this:

#import "AppDelegate.h"