I need to know my winow.rootviewcontroller name.

For example

```
    UITabBarController *demoTabBarController = [[UITabBarController alloc] init];
    [self.demoTabBarController setDelegate:self];
    self.demoTabBarController.viewControllers = [NSArray arrayWithObjects:mainNavController, searchView, challengeView, nil];
    self.window.rootViewController = self.demoTabBarController;

```

so in NSLog i want demoTabBarController as result. Is there any way i can achieve that?

Note that i dont want the class name of rootviewcontroller.