UITabBarController的子视图控制器中的导航栏按钮无响应

Question

I instantiate my UITabBarController by calling navigationController.viewControllers = @[[self.storyboard instantiateViewControllerWithIdentifier:@"tabController"]];

My Tab bar controller has a child view that is embedded in a navigation controller. However the bar button ( item ) is unresponsive when I touch them (the buttons in the navigation bar). I have tried logging the action but it appears as if the button is not firing at all.

The only thing that I have done differently is the way i instantiated the tab bar controller. Am I missing something?

I connected the navigation bar button from the storyboard to an action so it is hooked up successfully. Please note there is also a navigation Controller pointing to the UITabbarController not shown below.

Answer 1

The unwanted behaviour maybe because this flow (navigation controller to tabbar controller) is ill advised in the Apple HIG. More information can be found here: Storyboard with NavigationController and TabController . The solution I found was to hide the navigation bar on the navigation controller that links to the navigation bar (can be done in interface builder), then make it reappear in the new navigation controller that the tab bar links to. Confusing I know, I can help anyone who ever has a similar issue.

Answer 2

Is there any specific reason you are doing this:

navigationController.viewControllers = @[[self.storyboard instantiateViewControllerWithIdentifier:@"tabController"]];

You can simply drag an outlet from the UITableViewController to the UINavigationController using only the Storyboard.

Answer 3

I think you forgot to add the navigationItem. In the storyboard, add a navigation Item to your viewController and move your bar button items to the navigation bar that appears on the top.