Question

DetailViewController <-> MasterViewController <-> ViewController

At the moment I solve my problem by having a variable in the ViewController class point to the DetailViewController so that I can perform a method when the DONE button in ViewController is pressed.

- (void)doneButtonPressed { 
       [self.detailViewController method];
}

What I want to do is to have the ViewController report to DetailViewController when it unloads, so that DetailViewController can perform the method itself.

- (void)viewWillDisappear:(BOOL)animated {
      [super viewWillDisappear:animated];
      [[self.navigationController delegate] performSelector:@selector(method)];
}

What I have tried is to have the MasterViewController set the ViewControllers delegate to DetailViewController with this code, when it is pushed:

ViewController *ViewController = [[ViewController alloc] init];

ViewController.navigationController.delegate = self.detailViewController;

[self.navigationController pushViewController:ViewController animated:YES];

UINavigationControllerDelegate has been set in DetailViewController.

What am I doing wrong?

Answer 1

My question was badly formulated.

The answer is in the documentation:

• View Controller Programming Guide for iOS

  -> Modal View Controllers

  • Dismissing a Modal View Controller

http://developer.apple.com/library/ios/featuredarticles/ViewControllerPGforiPhoneOS/ModalViewControllers/ModalViewControllers.html#//apple_ref/doc/uid/TP40007457-CH111-SW14