Bug with hidden navigation bar

[Ruyven]

If the presenting ViewController's navigation bar is hidden and you cancel the gesture, the child's navigation bar will also get hidden even though it shouldn't.
Tested on iOS 9 and iOS 8.4.

Steps to reproduce with the example project:

• make the presenting ViewController's navigation bar hide itself¹
• run the app and tap Push
• start swiping back from anywhere
• push the ViewController back to the left. Do this by letting go and using the inertia, the bug doesn't occur if you swipe all the way back smoothly

Result: The first time you do this, the navigation bar will get hidden. The second time it will get shown again, etc.

¹ e.g. by adding this method to ViewController.m:

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    NSUInteger stackCount = [self.navigationController.viewControllers count];
    if (stackCount == 1) {
        [self.navigationController setNavigationBarHidden:true animated:true];
    } else {
        [self.navigationController setNavigationBarHidden:false animated:true];
    }
}

[gastonmorixe]

anyone solved this?

[yukitoto]

I also have this issue.

[zzzworm]

- (void)animationEnded:(BOOL)transitionCompleted
{
    // restore the toViewController's transform if the animation was cancelled
    if (!transitionCompleted) {
        self.toViewController.view.transform = CGAffineTransformIdentity;
        //some hack here
        if (nil == [self.fromViewController.navigationController.navigationBar superview] ) {
            //if have bug on ios9 and early, may do some work here
            [self.fromViewController.navigationController setNavigationBarHidden:NO animated:NO];
        }
    }
}

i use this code to fixed it

[lakshaychhabra]

Anyone Solved it on Swift?

[lakshaychhabra]

Well I solved it, just make the view controller as child of navigation controller