How to launch a ViewController from a Non ViewController class?

Question

the title says it all, i usually open ViewControllers like this

ListingViewController *listingView = [[ListingViewController alloc]init];
[self.navigationCon         


        

Answer 1

self.navigationController can be accessed via only UIViewController's subclass. You want to access UINavigationController from not UIViewcontroller class. Is it what you are asking?

If you have property of UINavigationController at AppDelegate like

@interface AppDelegate : UIResponder 
@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) UINavigationController *navigationController;
@end

You can get a pointer from wherever you want as below

#import "AppDelegate.h"
AppDelegate *delegate = (AppDelegate *)[[[UIApplication sharedApplication] delegate];
UINavigationController *navigation = [delegate navigationController];

Now you have it.