IOS rotate device without rotation animation - iphone

Question

What would be the correct way to achieve an effect similar to the one in the standard iPod app of the iPhone - when the device is rotated to landscape mode, the view changes to cover flow, but the type of transition is fade and not the rotating screen?
This is how I am loading the modal view:
- (void) willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
if (UIInterfaceOrientationIsLandscape(toInterfaceOrientation)) {
carouselView.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController:carouselView animated:YES];
}
}
Thanks!
Andrius

Answer 1

I later found that it is more stable to use this solution:
In the parent view controller (in my case it is tab view controller) viewdidload method add this:
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(didRotate:) name:#"UIDeviceOrientationDidChangeNotification" object:nil];
and then add this method:
- (void) didRotate:(NSNotification *)notification {
UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
if (UIInterfaceOrientationIsLandscape(orientation) && !self.modalViewController) {
[self presentModalViewController:carouselView animated:YES];
[Globals sharedGlobals].startedAtLandscape = YES;
}
if (UIInterfaceOrientationIsPortrait(orientation) && self.modalViewController) {
[self dismissModalViewControllerAnimated:YES];
[Globals sharedGlobals].startedAtLandscape = NO;
}
}
And finally if you want to prevent the rotation animation, modify this method like this:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
if(UIInterfaceOrientationIsLandscape(interfaceOrientation)) {
return NO;
}
return YES;
}