How can I dismiss two modal view controller in succession *with animation*?_问答_开发者

Yes, I know there's exactly same question, but I want to do this with double dismiss animation. How to Dismiss 2 Modal View Controllers in Succession?

my code is same as question above,

view controller A (in navigation controller) - modal view controller B - modal view controller C

here's pseudo code

notification to B (as delegate)      // I changed order of this two lines, 
dismiss C *without* anim开发者_JS百科ation    // but it was same. 

(notification from C, in B)
dismiss B *with* animation

If I use animation when I dismiss C, it doesn't work, B will not be dismiss, because dismiss animation of C is playing.

Problem is: I can't start another dismiss animation if there's animation playing.

Can I play dismiss animation in succession?

This is not only problem of dismiss animation, it can be also applied to other iOS animations.

P.S: I think I can use timer to wait until first animation ends, but it is dirty and not stable way, isn't it?

Small Talk: In my program,

A: article list view
B: write article view
C: login view (if user is not logged in)

today, I have to add join view, I have to dismiss 3 views in time lol how can I help this?

iOS 5.0 and higher:

[self.presentingViewController.presentingViewController dismissViewControllerAnimated:YES completion:nil];

This works if you have:

A - starting view controller
M1 - modally presented by A
M2 - modally presented by M1

Put that line of code in M2's view controller class (and a button or whatever to activate it), and it will "reach up" through the hierarchy and tell A to dismissViewControllerAnimated:...

However,Rahul Vyas's answer is probably a better approach for cases where you have an unknown number of modal view controllers stretching between "A" and the last Modal view.

You can generate a NSNotification and then from the root where your first modal appears dismiss the first modal view controller and all the others will automatically disappear. I have done this in one of my app.

You can use [self dismissModalViewControllerAnimated:(BOOL)] when you want the view to dismiss the modal view. If you call this in both controllers it should work. I have not tried it myself but it seems logical.

I must add that if you need to present multiple modal views in a row maybe you should consider using different paradigms for some of them. For example, the login view could be an alertview instead of a modal view controller.

I've run into similar types of issues trying to get animations to work in succession. I've been meaning to try the following:

what if you put the call for the second animation (i.e. to dimiss B) inside a call to performSelectorOnMainThread? That would make me think the second animation would be forced to wait for the first to complete.

I haven't tested it yet though. Good luck - I'm very curious about what solution you come up with.

You can remove 2 view by using

[AviewController dismissModalViewControllerAnimated:YES];

Here AviewController is object of A. Hope this will help you.

[self dismissModalViewControllerAnimated:(BOOL)] doesn't work. The second animation doesn't fire. In iOS 5 you can use [self dismissViewControllerAnimated:YES completion:^{}]; but that's not backwards compatible to 4.0. I've only had success calling a delegate method that closes the modal view controller before presenting the new one.

Here is what worked form me, I had A->B, and then a container view "C "over B. Then I wanted C to dismiss back over to A,

The best way that worked for me was calling this my action in view C

self.presentingViewController?.dismiss(animated: true, completion: {})
self.presentingViewController?.presentingViewController?.dismiss(animated: true, completion: {})

This dismissed the Modal C, then dismisses B in a synchronous order. It worked better with the feel of my application