UIView Animation Problem with different Controllers

Question

Hello!
I have a problem regarding the UIView animation and therefore, I have three questions:
1. is it possible to flip from view old to view new whereby each of the views have their own controller?
2. Can I only flip views sharing the same controller?
3. Maybe someone could help me with the following issue: I have two views, and each of the views have their own controller.. the code snippet illustrates my approach.. When i start my code, the new view is added on top of the old view, and the flipping animation is animating the old view only behind the new view.. Sure, this is not what i want to have.
MapPrototypeAppDelegate *app = (MapPrototypeAppDelegate *)[[UIApplication sharedApplication] delegate];
ReadGroupsViewController *aReadGroupsViewController = app.readGroupsTableViewController;
UIWindow *window = app.window;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationTransition: UIViewAnimationTransitionFlipFromRight forView:[self.mapView superview] cache:YES];
[UIView setAnimationDuration:1.3];
[UIView setAnimationDelegate:self];
[window addSubview:[aReadGroupsViewController view]];
[UIView commitAnimations];
thanks..

Answer 1

sommeralex wrote:
1. is it possible to flip from view old to view new whereby each of the views have their own controller?
Yes.
2. Can I only flip views sharing the same controller?
The flip animation may be used to transition between any "old" and "new" view without regard to whether those views have different controller's, the same controller, or no controller at all.
3. Maybe someone could help me with the following issue: I have two views, and each of the views have their own controller.. the code snippet illustrates my approach.. When i start my code, the new view is added on top of the old view, and the flipping animation is animating the old view only behind the new view.. Sure, this is not what i want to have.
MapPrototypeAppDelegate *app = (MapPrototypeAppDelegate *)[[UIApplication sharedApplication] delegate];
ReadGroupsViewController *aReadGroupsViewController = app.readGroupsTableViewController;
UIWindow *window = app.window;
[UIView beginAnimations:nil context:nil];
// the next line is puzzling. what is 'self.mapView', and what do you expect its superview to be? If 'self' is a
// view controller, what is the relationship between its 'view' property and its 'mapView' property? Does 'view'
// also have a superview? Is 'view' above or below 'mapView'? Is there a view between 'mapView' and the window?
[UIView setAnimationTransition: UIViewAnimationTransitionFlipFromRight forView:[self.mapView superview] cache:YES];
[UIView setAnimationDuration:1.3];
[UIView setAnimationDelegate:self];
// apropos the question above, what view is being covered in the next statement?
[window addSubview:[aReadGroupsViewController view]];
[UIView commitAnimations];
I think I need a better understanding of the view hierarchy we have before aReadGroupsVC.view is added. The problem you're having is probably caused by passing the wrong view as arg here: [self.mapView superview]. But I can't say for sure since I don't know how mapView is related to the view hierarchy, and I don't know what it's superview is. It might be easier to just explain your "old" view structure and tell us how you want it to change after the flip transition.
- Ray