Restore pre-iOS7 UINavigationController pushViewController animation

Question

So. Just started transitioning my IOS code to IOS7, and ran into a bit of problem.

I\'ve got a UINavigationController, which has child ViewControllers a

Answer 1

Swift 5 implementation of Arne's answer:

extension UINavigationController {
  func pushViewControllerLegacyTransition(_ viewController: UIViewController) {
    let transition = CATransition()
    transition.duration = 0.25
    transition.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
    transition.type = .push
    transition.subtype = .fromRight
    view.layer.add(transition, forKey: nil)
    pushViewController(viewController, animated: false)
  }

  func popViewControllerLegacyTransition() {
    let transition = CATransition()
    transition.duration = 0.25
    transition.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
    transition.type = .push
    transition.subtype = .fromLeft
    view.layer.add(transition, forKey: nil)
    popViewController(animated: false)
  }
}

Answer 2

I have the same problem with clear background colors and crappy animations, so I create custom transitioning for ViewController with new iOS7 API. All you need is simply set a delegate for your navigation controller:

// NavigationController does not retain delegate, so you should hold it.
self.navigationController.delegate = self.navigationTransitioningDelegate;

Just add this files into your project: MGNavigationTransitioningDelegate.

Answer 3

First of, I'm not using Storyboard. I tried using UINavigationController+Retro. For some reason, the UINavigationController is having a hard time releasing the UIViewController at the top of the stack. Here's the solution that works for me using iOS 7 custom transition.

1. Set delegate to self.

   navigationController.delegate = self;
   

2. Declare this UINavigationControllerDelegate.

   - (id<UIViewControllerAnimatedTransitioning>)navigationController (UINavigationController *)navigationController 
   animationControllerForOperation:(UINavigationControllerOperation)operation
   fromViewController:(UIViewController *)fromVC 
   toViewController:(UIViewController *)toVC 
   {
       TransitionAnimator *animator = [TransitionAnimator new]; 
       animator.presenting = YES;
       return animator;
   }
   

   Note that it'll only get called when animated is set to YES. For example

   [navigationController pushViewController:currentViewController animated:YES];
   

3. Create the animator class extending NSObject. I called mine TransitionAnimator, which was modified from TeehanLax's TLTransitionAnimator inside UIViewController-Transitions-Example.

   TransitionAnimator.h

   #import <Foundation/Foundation.h>
   @interface TransitionAnimator : NSObject <UIViewControllerAnimatedTransitioning>
   @property (nonatomic, assign, getter = isPresenting) BOOL presenting;
   @end
   

   TransitionAnimator.m

   #import "TransitionAnimator.h"
   @implementation TransitionAnimator
   - (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext {
       return 0.5f;
   }
   - (void)animateTransition:(id <UIViewControllerContextTransitioning>)transitionContext{
       UIViewController *fromVC = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
       UIViewController *toVC = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];    
       if (self.presenting) {
           //ANIMATE VC ENTERING FROM THE RIGHT SIDE OF THE SCREEN
           [transitionContext.containerView addSubview:fromVC.view];
           [transitionContext.containerView addSubview:toVC.view];     
           toVC.view.frame = CGRectMake(0, 0, 2*APP_W0, APP_H0); //SET ORIGINAL POSITION toVC OFF TO THE RIGHT                
           [UIView animateWithDuration:[self transitionDuration:transitionContext] 
               animations:^{
                   fromVC.view.frame = CGRectMake(0, (-1)*APP_W0, APP_W0, APP_H0); //MOVE fromVC OFF TO THE LEFT
                   toVC.view.frame = CGRectMake(0, 0, APP_W0, APP_H0); //ANIMATE toVC IN TO OCCUPY THE SCREEN
               } completion:^(BOOL finished) {
                   [transitionContext completeTransition:YES];
               }];
       }else{
           //ANIMATE VC EXITING TO THE RIGHT SIDE OF THE SCREEN
       }
   }
   @end
   

   Use presenting flag to set the direction you want to animate or which ever condition you prefer. Here's the link to Apple reference.

Answer 4

Simply add in:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

This:

[[self window] setBackgroundColor:[UIColor whiteColor]];

The final result:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions (NSDictionary *)launchOptions {    
    [[self window] setBackgroundColor:[UIColor whiteColor]];

    // Override point for customization after application launch.
    return YES;
}