UIView to Form Sheet flip animation rotation issue
- by GSD
I have this view to form sheet flip animation that works great in portrait mode but not in any other orientations. In my code, I use it with a UIView embedded in another UIView, which is in the root view. The animation will be rotated. Anyone has an idea why?
- (void)presentModalViewControllerWithFlipAnimation:(UIViewController *)modalViewController fromView:(UIView *)fromView {
UIWindow* window = [[UIApplication sharedApplication] windows][0];
_fromViewSnapshot = [[UIImageView alloc] initWithFrame:fromView.bounds];
UIGraphicsBeginImageContext(fromView.bounds.size);
[fromView.layer renderInContext:UIGraphicsGetCurrentContext()];
[_fromViewSnapshot setImage:UIGraphicsGetImageFromCurrentImageContext()];
[_fromViewSnapshot sizeToFit];
UIGraphicsEndImageContext();
_fromViewSnapshot.autoresizesSubviews = YES;
_fromViewSnapshot.frame = [fromView.superview convertRect:fromView.frame toView:window];
[window addSubview:_fromViewSnapshot];
fromView.hidden = YES;
modalViewController.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentViewController:modalViewController animated:NO completion:nil];
UIView __weak *presentedView = modalViewController.view.superview;
UIGraphicsBeginImageContext(presentedView.bounds.size);
[presentedView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage* modalSnapshot = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
UIView __weak *presentationSuperview = presentedView.superview;
[presentedView removeFromSuperview];
UIImageView* presentationSnapshotView = [[UIImageView alloc] initWithImage:modalSnapshot];
presentationSnapshotView.autoresizingMask = UIViewAutoresizingNone;
[_fromViewSnapshot.superview bringSubviewToFront:_fromViewSnapshot];
[UIView animateWithDuration:kFlipAnimationScaleSpeed
delay:0
options:UIViewAnimationOptionCurveEaseIn|UIViewAnimationOptionBeginFromCurrentState
animations: ^{
[UIView animateWithDuration:kFlipAnimationScaleSpeed
delay:0
options:UIViewAnimationOptionBeginFromCurrentState
animations: ^{
_fromViewSnapshot.frame = [_fromViewSnapshot.superview convertRect:presentedView.frame fromView:presentationSuperview];
}
completion:nil];
}
completion:^(BOOL finished) {
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView transitionWithView:_fromViewSnapshot
duration:kFlipAnimationSpeed
options:UIViewAnimationOptionCurveEaseIn|UIViewAnimationOptionTransitionFlipFromRight
animations: ^{
presentationSnapshotView.frame = _fromViewSnapshot.bounds;
[_fromViewSnapshot addSubview:presentationSnapshotView];
}
completion:^(BOOL finished) {
[presentationSuperview addSubview:presentedView];
[presentationSnapshotView removeFromSuperview];
[_fromViewSnapshot removeFromSuperview];
}];
}];
}
- (void)dismissViewControllerWithFlipAnimation:(UIView*)fromView completion:(void (^)(void))completion {
UIWindow* window = [[UIApplication sharedApplication] windows][0];
UIView __weak *presentedView = self.presentedViewController.view.superview;
UIGraphicsBeginImageContext(presentedView.bounds.size);
[presentedView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage* modalSnapshot = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
[presentedView removeFromSuperview];
UIImageView* presentationSnapshotView = [[UIImageView alloc] initWithImage:modalSnapshot];
presentationSnapshotView.autoresizingMask = UIViewAutoresizingNone;
presentationSnapshotView.frame = presentedView.frame;
[window addSubview:presentationSnapshotView];
[UIView animateWithDuration:kFlipAnimationScaleSpeed
delay:0
options:UIViewAnimationOptionCurveEaseIn|UIViewAnimationOptionBeginFromCurrentState
animations: ^{
[UIView animateWithDuration:kFlipAnimationScaleSpeed
delay:0
options:UIViewAnimationOptionBeginFromCurrentState
animations: ^{
presentationSnapshotView.frame = [fromView.superview convertRect:fromView.frame toView:window];
}
completion:nil];
}
completion:^(BOOL finished) {
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView transitionWithView:presentationSnapshotView
duration:kFlipAnimationSpeed
options:UIViewAnimationOptionCurveEaseIn|UIViewAnimationOptionTransitionFlipFromLeft
animations: ^{
_fromViewSnapshot.frame = presentationSnapshotView.bounds;
[presentationSnapshotView setImage:[(UIImageView*)_fromViewSnapshot image]];
[self dismissViewControllerAnimated:NO completion:nil];
}
completion:^(BOOL finished) {
[presentationSnapshotView removeFromSuperview];
_fromViewSnapshot = nil;
completion();
}];
}];
}
