I had a problem where when UIViewController A did a pushViewController to push UIViewController B, the push animation would stop at about 25%, halt, and then slide B in the rest of the way. This DID NOT happen on iOS 6, but as soon as I started using iOS 7 as the base SDK in … Read more
I did this. -(void)viewWillDisappear:(BOOL)animated{ [super viewWillDisappear:animated]; [self.view setAlpha:0]; } Do not forget re set alpha when come back. – (void) viewWillAppear:(BOOL)animated{ [super viewWillAppear:animated]; [self.view setAlpha:1]; }
Yes, pushViewController: is for navigation controllers that manage a stack of view controllers. addChildViewController: on the other hand is part of an iOS 5 feature called “view controller containment”. The basic idea behind this is that you can embed your view controllers into other view controllers of your own (e.g. when porting an iPhone app … Read more
If you want to a fade animation, this approach works. CATransition* transition = [CATransition animation]; transition.duration = 0.3; transition.type = kCATransitionFade; transition.subtype = kCATransitionFromTop; [self.navigationController.view.layer addAnimation:transition forKey:kCATransition]; [self.navigationController pushViewController:gridController animated:NO];
I managed to workaround the new transition type by creating a category for UINavigationController. In my case I needed to revert it to the old transition style because I have transparent viewControllers that slide over a static background. UINavigationController+Retro.h @interface UINavigationController (Retro) – (void)pushViewControllerRetro:(UIViewController *)viewController; – (void)popViewControllerRetro; @end UINavigationController+Retro.m #import “UINavigationController+Retro.h” @implementation UINavigationController (Retro) – … Read more
SWIFT: You should use an unwind segue. First of all, put the following line in your FirstViewController: @IBAction func prepareForUnwind(segue: UIStoryboardSegue) { } The function actually doesn’t have any code inside it. Now, go to your storyboard and create an unwind segue for LogoutViewController by control-dragging from the yellow button to the Exit button. Like … Read more
MapsViewController *aViewController = [[MapsViewController alloc] initWithNibName:@”MapsViewController” bundle:nil]; // locally store the navigation controller since // self.navigationController will be nil once we are popped UINavigationController *navController = self.navigationController; // retain ourselves so that the controller will still exist once it’s popped off [[self retain] autorelease]; // Pop this controller and replace with another [navController popViewControllerAnimated:NO];//not to … Read more
See par’s answer for another and more up to date solution UINavigationController animations are run with CoreAnimation, so it would make sense to encapsulate the code within CATransaction and thus set a completion block. Swift: For swift I suggest creating an extension as such extension UINavigationController { public func pushViewController(viewController: UIViewController, animated: Bool, completion: @escaping … Read more