How to hide the "back" button in UINavigationController?
I just found out the answer, in a controller use this:
[self.navigationItem setHidesBackButton:YES animated:YES];And to restore it:
[self.navigationItem setHidesBackButton:NO animated:YES];--
[UPDATE]
Swift 3.0:
self.navigationItem.setHidesBackButton(true, animated:true)
In addition to removing the back button (using the methods already recommended), don't forget the user can still 'pop' to the previous screen with a left-to-right swipe gesture in iOS 7 and later.
To disable that (when appropriate), implement the following (in viewDidLoad for example):
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) self.navigationController.interactivePopGestureRecognizer.enabled = NO;