Reclicking in a UITabBarItem

Is there a way to give an action to a reclick of an UITabBarItem? I want to back开发者_StackOverflow to the initial screen of my app when the tab bar item is reclicked. I'm using a UITabBarController with UITabBar and UITabBarItens. My app have a list of views with foward and backward controls. I wish that UITabBarItem act like a home button.

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This behavior is given to you automatically if you use UINaviationController: when you "reclick" a tab it will pop to the root view controller.

Your other option would be to implement the UITabBarDelegate or UITabBarControllerDelegate protocol and perform an action when the tab is clicked.

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Its default in the UINavigation controller implementation. If you have a UINavigationController and tap an icon in a tab bar, it will pop view controllers until it reaches the root assuming the navigation controller is a child and is one of the tab bar item's controller.

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You have to implement a UITabBarControllerDelegate

- (void)tabBarController:(UITabBarController*)tabBarController didSelectViewController:(UIViewController*)viewController
{

    if (tabBarController.selectedViewController == viewController)
    {
        tabBarController.selectedIndex =0;
    }
}

This should do the trick.

Cheers nettz