Problem dismissing multiple modal view controllers

Question

I am having trouble getting my modal view controllers to display properly. I have a parent view controller that is the delegate for modal view A. In modal view A I am presenting modal view B, and having the delegate dimiss modal view A.

When modal view B appears it seems to display but the screen dims, and the UI locks up, but the app doesn't crash. I set animation settings to NO and I am still getting the same issue.

Order of events:

1. Parent View show Modal View A
2. Modal View A shows Modal View B in Modal View A controller
3. Parent View dismisses Modal View A in Modal View A controller via delegation
4. This is where my UI hangs, I can see Modal View B but can't click on it, or do anything

Answer 1

A modal view controller must have a parent view controller in order to display. If you dismiss the parent view controller ("modal view A", in your case), behavior will be unpredictable.

If you're certain that nested modal view controllers are what you really want, you'll need to dismiss them in reverse order; wait until you're done with "B", then dismiss "B", then dismiss "A".

If you don't need the modal presentation style, you would be better off using a UINavigationController to maintain your stack of view controllers.

Update: here is how I would rearrange your order of events. Presented as code for clarity.

1. [parentView presentViewController:modalViewControllerA animated:YES]
2. [modalViewControllerA presentViewController:modalViewControllerB animated:YES]
3. [modalViewControllerA dismissModalViewControllerAnimated:YES]
4. [parentView dismissModalViewControllerAnimated:YES]

Answer 2

Solved by having my parentViewController act as the delegate. Here is my order:

[parentView presentViewController:modalViewControllerA animated:YES]
[parentView dismissModalViewControllerAnimated:YES]
[parentView presentViewController:modalViewControllerB animated:YES]
//Modal B dismisses himself

In my delegate method, I needed to make sure that I dismissed Modal A before presenting Modal B

Answer 3

Hey Sheehan, may be after long but.. I am in same problem and this is the only post with some answer. I am not getting what you mean by setting delegate of a parentViewController to self is not allowed .

what I am doing right now is

[self presentModalViewController:ViewControllerA animated:YES]; [self dismissModalViewControllerAnimated:YES];// inside ViewControllerA [self presentModalViewController:ViewControllerB animated:YES]; [self dismissModalViewControllerAnimated:YES];// inside ViewControllerB

Problem is after viewControllerA , viewControllerB view is not presenting.

Thanks,

Answer 4

I have a main view and need to show a modalview1 where a button present a modalview2. Looks the same you needed. But there is a button in the modalview2 which forwards to the main view.

So the solution is: Main view presents UINavigationController with modalview1 as rootController. Then modalview1 present modalview2 by "[self.navigationController modalview2 animated:YES];".

When modal2 needs to forward to the main view, just make "[self.parentViewController dismissModalViewControllerAnimated:YES];" and UINavigationController is hidden.

Hope it's clear.