Question

I have a UITabBarController. One tab is a UINavigationController where it’s rootViewController is a subclass of UIViewController. In my rootViewController, in my viewDidLoad, I push the first of three ViewControllers. Based on which UISegmentedControl is pressed, I pop the old view, and I push the viewController that corresponds to the UISegmentedControl. This works for the most part.

The problem is if I’m currently in the Navigation hierarchy, if I hit the same tab again (the tab I am already looking at), it pops the current ViewController off the stack and returns to the rootViewController. I’m not sure why this is happening. I only have one place where I popViewController and I set a break point there, and it never gets called. So my assumption is that when I select the tab of the UITabBarController when I’m already on that tab, it returns to the rootViewController. Is that correct? Is there anything I can do to fix this issue? Thanks.

Answer 1

Yes, that’s the standard behaviour, but you can prevent it by implementing the tab bar delegate method shouldSelectViewController

An example of how to do this is here Prevent automatic popToRootViewController on double-tap of UITabBarController