How to set a delegate for a CustomToolbar in the rootViewController when using a NavigationController setup with initWithNavigationBarClass:toolbarClass:
In my code I am doing the following:
RootViewController *rootViewController = [[RootViewController alloc] initWithClassName:kFTPostClassKey];
UINavigationController *navController = [[UINavigationController alloc] initWithNavigationBarClass:[CustomNavigationBar class] toolbarClass:[CustomToolbar class]];
[navController setViewControllers:@[rootViewController] animated:NO];
// Present the Home View Controller
[self presentViewController:navController animated:YES completion:NULL];
In the 'RootViewController' I am trying to set the delegate for the toolbar in order to detect when an item is tapped.
[self.navigationController.toolbar setDelegate:self];
When I do this I get an exception:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Cannot manually set the delegate on a UIToolbar managed by a controller.'
I looked at the documentation and learned that you can not set the delegate when the toolbar is being managed by the UINavigationController. My question is this: How can I detect clicks on the CustomToolbar in my RootViewController if I can not set the delegate?
I would also appreciate some deeper explanation, as I am new and not sure how this is all working.
My guess is that in order to work, the navigationController needs to be the navigationBar delegate. That's why you can not set the navigationBar delegate when it is used in a navigationController.
As you use a subclass of navigationBar, you can try to have a subprotocol of the UINavigationBarDelegate in which you add a navigationBarWasSelected method.
In a new UINavigationController subclass, you implement this method to let the rootViewController now when the navigation is clicked.
Or, in your custom navigation bar you can send a NSNotification in the NSNotificationCenter, and catch it in your RootViewController.