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POUINavigationContoller loses track of views after returning from background
 

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    <p>I have an <code>UINavigationController</code> setup as the <code>rootViewController</code> in a <code>TabBarController</code> in an iOS7 only app. Navigation works great: I can push new views and navigate back with either the back button in the top left corner or by swiping back / pop gesture.</p> <p>But if I put the app in the background with anything but the root view shown in the navigation controller I run into this problem: If I use the swipe back gesture there is no pop animation - the view disappears instantly and I am left with the underlying view. The lack of the swipe animation is not a big issue but the real problem is that the title in the navigation controller is now off. It still thinks that I am on the view controller that just disappeared! </p> <p>For example: </p> <p>My root view in the navigation controller will have the title <strong>"Settings"</strong> - I will then push the "<strong>Appearance"</strong> VC, put the app in the background using the home button - re-open the app and then try the swipe back gesture. This pops me back to <strong>"Settings"</strong> but the title still says <strong>"&lt; Settings | Appearance"</strong>. And now if I push another VC the title will say <strong>"Settings"</strong> on the new VC and there is no back button!</p> <p>This only happens if I use the pop gesture - not if I use the navigation bar back button.</p> <p>I have tried to check if the issue is that my VC becomes dealloc'ed by putting <code>NSLog</code> in the dealloc but that is not the issue.</p> <p>I have also tried putting an: </p> <pre><code>NSLog("Hierarchy: %@", [self.navigationController viewControllers]); </code></pre> <p>in both view will appear and disappear to see if the stack on the nav controller is getting messed up - but that is not the issue - the stack is correct.</p> <p>Any suggestions for how to further debug or for what I may be doing wrong are much appreciated! This happens both on my iPhones and in the simulator and it is driving me nuts.</p>
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