一个3D翻转的转场动画：KYPushTransition
mip33
10年前
一个3D翻转的转场动画，可以手势百分比控制。
Usage
以下代码全在第一个视图控制器中实现：
进入第一个控制器。在跳转之前，设置后一个控制器的代理，比如我用Segue的话，就在-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender里设置后一个控制器的代理为前一个控制器，并且让后一个控制器实现手势返回的交互：
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{ SecondViewController *secVC = (SecondViewController *)segue.destinationViewController; secVC.transitioningDelegate = self; popInteractive = [KYPopInteractiveTransition new]; [popInteractive addPopGesture:secVC]; } 然后分两种情况：
1）如果只是一个VC present 到另一个 VC，那么你需要实现UIViewControllerTransitioningDelegate中的两个协议，分别对应present和dismiss,返回对应的动画:
- (id <UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source{ KYPushTransition *flip = [KYPushTransition new]; return flip; } - (id <UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed{ KYPopTransition *flip = [KYPopTransition new]; return flip; } 然后是手势交互的方法，比较常用的情况是返回上一个VC采用手势，所以这里只实现了dismiss的方法：
- (id <UIViewControllerInteractiveTransitioning>)interactionControllerForDismissal:(id <UIViewControllerAnimatedTransitioning>)animator{ return popInteractive.interacting ? popInteractive : nil; } 2）如果你是用UINavigationController控制两个VC，那么需要实现UINavigationControllerDelegate中的：
- (id <UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController *)fromVC toViewController:(UIViewController *)toVC{ if (operation == UINavigationControllerOperationPush) { KYPushTransition *flip = [KYPushTransition new]; return flip; }else if (operation == UINavigationControllerOperationPop){ KYPopTransition *flip = [KYPopTransition new]; return flip; }else{ return nil; } } UINaviagtionController控制VC的情况下，UINavigationControllerDelegate也有相应的手势交互的协议方法：
- (id <UIViewControllerInteractiveTransitioning>)navigationController:(UINavigationController *)navigationController interactionControllerForAnimationController:(id <UIViewControllerAnimatedTransitioning>) animationController{ return popInteractive.interacting ? popInteractive : nil;