Prevent UINavigationBar popViewController animatio

Question

I have the following problem: I have overridden popViewControllerAnimated:(BOOL)animated of UINavigationController because I would like to have a custom animation. The code is as follows:

- (UIViewController *)popViewControllerAnimated:(BOOL)animated 
{
    UIViewController *poppedCtrl = [super popViewControllerAnimated:NO];
    [((customViewController *) self.topViewController) doCustomAnimation];
    return poppedCtrl;
}

Unfortunately the UINavigationBar seems to ignore that I explicitly disable the built in animation and it is still animated.

What do I have to do to also prevent the animation of the navigation bar?

Answer 1

If anyones looking to disable push animation - this works for me, by overrideing this method on UINavigationBar:

- (void)pushNavigationItem:(UINavigationItem *)item {
    NSMutableArray* items = [[self items] mutableCopy];
    [items addObject:item];
    self.items = items;
}

Answer 2

After some reading and also some experimentation I finally found out what needs to be done to achieve the desired behavior.

To prevent the navigation bar from being animated it is not sufficient to override (UIViewController *)popViewControllerAnimated:(BOOL)animated.

It is also necessary to create a custom navigation bar and override (UINavigationItem *)popNavigationItemAnimated:(BOOL)animated:

- (UINavigationItem *)popNavigationItemAnimated:(BOOL)animated {
    return [super popNavigationItemAnimated:NO];
}

Of course this custom navigation bar must also be the one which is used (I just replaced the navigation bar which is used by my navigation controller in the interface builder).