please consider the code below, and tell me what I'm doing wrong.
I want to flip between two UIViews.
Somehow, when I flip away from the initial view, I just get the flipped view, without animation. When I flip back, the animation shows just fine.
The flips are triggered from buttons on the views themselves.
- (IBAction)showMoreInfo:(id)sender
{
UIView *moreInfo = self.flipView;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:2.0];
[UIView setAnimationBeginsFromCurrentState:NO];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
UIView *parent = self.view.superview;
[self.view removeFromSuperview];
[parent addSubview:moreInfo];
[UIView commitAnimations];
}
- (IBAction)showLessInfo:(id)sender
{
UIView *lessInfo = self.view;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:2.0];
[UIView setAnimationBeginsFromCurrentState:NO];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.flipView cache:YES];
UIView *parent = self.flipView.superview;
[self.flipView removeFromSuperview];
[parent addSubview:lessInfo];
[UIView commitAnimations];
}
It's probably because you aren't using a container view as the transition view. Refer to the documentation on setAnimationTransition:forView:cache:
If you want to change the appearance of a view during a transition—for example, flip from one view to another—then use a container view, an instance of UIView, as follows:
- Begin an animation block.
- Set the transition on the container view.
- Remove the subview from the container view.
- Add the new subview to the container view.
- Commit the animation block.
Try using self.view.superview
in the animation transition view of the showMoreInfo:
The reason the showLessInfo:
method works is you are using a container view.