Custom AMWaveTransition

ViewController.m

- (id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController
                                  animationControllerForOperation:(UINavigationControllerOperation)operation
                                               fromViewController:(UIViewController*)fromVC
                                                 toViewController:(UIViewController*)toVC
{
    if (operation != UINavigationControllerOperationNone) {
        AMWaveTransition *transition = [AMWaveTransition transitionWithOperation:operation];
        [transition setTransitionType:AMWaveTransitionTypeSubtle];
        [transition setDuration:1.3];
        [transition setMaxDelay:0.4];
        return transition;
    }
    return nil;
}