How to tell if currently selected tab was pressed again?

Question

I would like to assign an action if the user attempts to select a currently selected tab.

For example, if tab 1 is selected and the user tries to select tab 1 again, I want to make my app do something.

Are there any UITabBarController methods that will intercept this attempt?

I've looked through UITabBar, UITabBarController, and UITabBarItem APIs and can't find anything obvious.

Answer 1

You have to set a UITabBarControllerDelegate. Specifically the - tabBarController:shouldSelectViewController: method where you can simply check self.selectedViewController against the view controller passed in. If they are the same, the selected is being selected again.