Call method from initialized UIViewController in storyboarding - objective c

Question

I\'m new to Storyboarding in objective c and I need to call method from UIVIewController. Before Storyboarding I was initializing UI

Answer 1

If you want to have this method available from any class you can keep doing the same. Place in in your AppDelegate and then just retrieve the shared instance on the controller you want to use it from. (all your application has access to your appdelegate) so just import the header of the app delegate, create a new instance of your specific appdelegatename class, and call the shared delegate. then you can use the method as if that class would have it.

Additionaly you can use something like this

#import "AppDelegate.h"
#define appDelegate (AppDelegate *) [[UIApplication sharedApplication] delegate]

IF you want to call a method from ANY of your viewcontrollers which are specified in the storyboard you can do it by referencing their identifier:

PreviewViewController *tmp = [[self storyboard] instantiateViewControllerWithIdentifier:@"PreviewViewController"];

Answer 2

You can get the root view controller of your storyboard from your app delegate. For example:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    UITabbarController *tbc = (UITabbarController *)self.window.rootViewController;

    // Do any setup you want to here
    // You aren't setting up the controller - just accessing the one that has been set up for you by the storyboard

    return YES;
}