This animation is imitate fisrt ViewController push to second ViewController,and pop to first ViewController
first you should follow the UINavigationControllerDelegate in your transition view controller
and implementation the delegate
- (nullable id <UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController
animationControllerForOperation:(UINavigationControllerOperation)operation
fromViewController:(UIViewController *)fromVC
toViewController:(UIViewController *)toVC NS_AVAILABLE_IOS(7_0);in the from view controller, you just need judge the opration wether is push or not, and then new a VCTransitionAnimation, and return it
- (id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController *)fromVC toViewController:(UIViewController *)toVC {
if (operation == UINavigationControllerOperationPush) {
VCTransitionAnimation *transAni = [VCTransitionAnimation new];
return transAni;
}else{
return nil;
}
}
in the to view controller, you just need judge the opration wether is pop or not, and then new a VCTransitionAnimation, and return it
- (id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController *)fromVC toViewController:(UIViewController *)toVC {
if (operation == UINavigationControllerOperationPop) {
VCVertTransitionAnimation *vertTrans = [VCVertTransitionAnimation new];
return vertTrans;
}else {
return nil;
}
}