Why don't call method presentationControllerForPresentedViewController of UIViewControllerTransitioningDelegate?

Question

I want use custom UIPresentationController. For it when I want show new scene I call this code

UIViewController *cv = [[...]];

cv.transitionManager=[[MyTransition alloc] init];
cv.transitioningDelegate=actionSheet.transitionManager;
cv.modalTransitionStyle = UIModalPresentationCustom;

[self presentViewController:cv animated:YES completion:^{

}];

my transition manager has methods:

#pragma mark - UIViewControllerTransitioningDelegate

- (id <UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source{
    return self;
}

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

- (id <UIViewControllerInteractiveTransitioning>)interactionControllerForPresentation:(id <UIViewControllerAnimatedTransitioning>)animator{
    return  nil;
}

- (id <UIViewControllerInteractiveTransitioning>)interactionControllerForDismissal:(id <UIViewControllerAnimatedTransitioning>)animator{
    return self;
}


- (UIPresentationController *)presentationControllerForPresentedViewController:(UIViewController *)presented presentingViewController:(UIViewController *)presenting sourceViewController:(UIViewController *)source {
    MyPresentationController *presentationController = [[MyPresentationController alloc] initWithPresentedViewController:presented presentingViewController:presenting];
    return presentationController;
}

but the method presentationControllerForPresentedViewController doesn't call!

Why?

score 10 · Accepted Answer · answered Dec 09 '14 at 13:48

10

It will be called only if your present a view controller using the UIModalPresentationCustom presentation style

answered Dec 09 '14 at 13:48

Silmaril

4,241
20
22

he is using UIModalPresentationCustom – litso Dec 22 '15 at 23:41
@litso indeed. I don't know how I missed that and why my answer wast accepted then. It is possible that author implemented UIViewControllerTransitioningDelegate methods, but did not conformed to this protocol. – Silmaril Dec 23 '15 at 09:15

Michal Zaborowski · Answer 2 · 2016-03-09T19:58:38.610

9

modalPresentationStyle instead of modalTransitionStyle is a correct answer :)

edited Mar 09 '16 at 19:58

answered Jan 14 '16 at 17:10

Michal Zaborowski

5,039
36
35

1

Wow, I have been working with custom transitions for a while and sometimes things got weird and I did not know why. There are modalPresentationStyle and modalTransitionStyle ... – Jakub Truhlář Mar 09 '16 at 19:05
1

May god bless you and your family for helping me find this stupid mistake. – shannoga May 14 '18 at 12:07

Why don't call method presentationControllerForPresentedViewController of UIViewControllerTransitioningDelegate?

2 Answers2