Setting Properties of a View Controller

New to iOS development...

I've created an EntityListViewController that I would like to use to display different lists based on a listType property of the view controller.

I'd like to use this view with a Tab Bar Control. So far I've managed to figure out that I need to use didSelectViewController in the app delegate, and I can tell which tab is active by inspecting the tag. Set an alert, it pops up when I select the tab I wanted the alert to pop on. Good... but...

My question is: At this point I should know which view controller is currently active. How do I now set the listType property while I'm still in the didSelectViewController method?

I'm a .NET developer, so my first instinct is to create an instance of EntityListViewController and set it to (EntityListViewController)viewController, but that doesn't work.

Just need to be pointed in the right direction here. Thanks.

This is what I'm referring to (for clarity):

Code:

// Optional UITabBarControllerDelegate method.
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {
	
	// If this is tab 5, set the listType property of the viewController to XX 
	if (viewController.tabBarItem.tag == 5)
	{
		// Set a property of the currently selected view
	}
}

 

Perfect. That's exactly what I needed! Thanks.