react-native-navigation/lib/ios/ModalDismissTransitionDeleg...

#import "ModalDismissTransitionDelegate.h"

@implementation ModalDismissTransitionDelegate

- (id<UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed {
    return self;
}

- (NSArray *)createTransitionsFromVC:(UIViewController *)fromVC toVC:(UIViewController *)toVC containerView:(UIView *)containerView {
    ContentTransitionCreator* contentTransition = [ContentTransitionCreator createTransition:self.contentTransitionOptions view:fromVC.view fromVC:fromVC toVC:toVC containerView:containerView];
    
    return @[contentTransition];
}

- (void)prepareTransitionContext:(id<UIViewControllerContextTransitioning>)transitionContext {
    UIViewController* toVC = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
    UIViewController* fromVC = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
    
    fromVC.view.alpha = 0;
    [transitionContext.containerView addSubview:toVC.view];
    [transitionContext.containerView addSubview:fromVC.view];
}

@end