Access modal view controller parent

Question

I\'m presenting a ViewController modally. How can I access the parent view controller ?

My architecture is TabBarController=>VC1=>VC2=>VC3=>MVC1, and I want to reach VC3

Answer 1

//You have to get the root, iterate through the root's ViewControllers and then ask for the ParentViewController.
    UINavigationController ​*root = (UINavigationController*​)[[(AppDelegate*) [[UIApplication sharedApplication]delegate] window] rootViewController];
           for (UIViewController *VC in root.viewControllers) {
               if([VC isKindOfClass:[YourParentViewController class]]){
                   YourParentViewController*  parent = (YourParentViewController*)VC;
                   [parent callMethod]; // your code here
                   [self dismissViewControllerAnimated:YES completion:nil];
               }
           }