CBStoreHouseTransition

What is it?

A custom transition inspired by Storehouse iOS app, also support pop gesture.

![screenshot] (https://s3.amazonaws.com/suyu.test/CBStoreHouseTransition.gif)

Video

Features

One class file includes both pop and push transition and pop gesture.
Fully customizable transition animation.
Works for following iOS custom transition types:
- UINavigationControllerpush and pop
- UIViewControllerpresentations and dismissals

Which files are needed?

You only need to include CBStoreHouseTransition (.h .m) in your project, it contains both animator and interactive class.

CocoaPods support is coming very soon!

How to use it

For animator object you need to set proper AnimationType to match UINavigationControllerOperation object.

For interactive transition you need to attach current view controller using:

- (void)attachToViewController:(UIViewController *)viewController;

A edge pan gesture will be added on the view controller's root view to handle the pop gesture and drive the interactive transition.

Then just return the proper animatior or interactive object in related delegate method, following is a example using CBStoreHouseTransition for UINavigationController.

For more information about iOS custom transition, please refer to WWDC 2013 Custom Transitions Using View Controllers video.

- (void)viewDidLoad
{
    ...
    self.animator = [[CBStoreHouseTransitionAnimator alloc] init];
    ...
}

- (void)viewDidAppear:(BOOL)animated
{
    ...
    self.navigationController.delegate = self;
    self.interactiveTransition = [[CBStoreHouseTransitionInteractiveTransition alloc] init];
    [self.interactiveTransition attachToViewController:self];
    ...
}

-(id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController
                                 animationControllerForOperation:(UINavigationControllerOperation)operation
                                              fromViewController:(UIViewController *)fromVC
                                                toViewController:(UIViewController *)toVC
{
    switch (operation) {
        case UINavigationControllerOperationPush:
            //we don't need interactive transition for push
            self.interactiveTransition = nil;
            self.animator.type = AnimationTypePush;
            return self.animator;
        case UINavigationControllerOperationPop:
            self.animator.type = AnimationTypePop;
            return self.animator;
        default:
            return nil;
    }
}

- (id<UIViewControllerInteractiveTransitioning>)navigationController:(UINavigationController *)navigationController
                         interactionControllerForAnimationController:(id<UIViewControllerAnimatedTransitioning>)animationController
{
    return self.interactiveTransition;
}

Since we don't need interactive for push transition or when user specificity taps back button, you need to set self.interactive to nil.

You can customize following properties to change the animation behavior: