How to implement the correct uinavigationbar back button functionality

Question

I want to go back to the previous view controller when i click on the cancel button of my search display controller i used the code :

[self.navigationController popToViewController: [self.navigationController.viewControllers objectAtIndex:0] animated:YES];

but it gives me the following error :

* Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'search contents navigation controller must not change between -setActive:YES and -setActive:NO'

Answer 1

[self.navigationController popViewControllerAnimated:YES];

will take you back to the previous view controller that was stacked in this navigation controller. that should do it..

Answer 2

My Problem was the searchdisplay controller cannot setActive by the uinavigator so i solve my problem by add the following code :

[self.searchDisplayController setActive:NO];

[self.navigationController popViewControllerAnimated:YES];

the Error was :

* Assertion failure in -[UISearchDisplayController setActive:animated:], /SourceCache/UIKit_Sim/UIKit-1914.84/UISearchDisplayController.m:617 2012-05-13 19:07:44.696 MyApp[3648:11903] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'search contents navigation controller must not change between -setActive:YES and -setActive:NO'