Animation not working when view presented with an UIModalTransitionStyleFlipHorizontal - objective-c

Question

I try to make an animation with an image in my view but it doesn't work: my image is at the final position without animation.
UIImage *myImg = [UIImage imageNamed : #"Img72.png"];
UIImageView *myImgView =[ [UIImageView alloc] initWithImage: myImg ];
myImgView.frame= CGRectMake(250,50,72,72);
[self.view addSubview:myImgView];
[UIView animateWithDuration:0.5
delay: 0.0
options: UIViewAnimationOptionCurveEaseInOut
animations:^{
[UIView setAnimationRepeatCount:100.0];
[UIView setAnimationRepeatAutoreverses:YES];
myImgView.frame= CGRectMake(50,250,72,72);
}
completion:NULL];
[myImgView release];
The same animation code work perfectly in another view. I finally find that it's come from the way I display the view with this code:
FlipsideViewController *controller = [[[FlipsideViewController alloc] initWithNibName:#"FlipsideViewController" bundle:nil] autorelease];
controller.delegate = self;
controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; //KO
[self presentModalViewController:controller animated:YES];
The problem is the modalTransitionStyle. When I comment the line (with //KO) it finally works. I test the other transition style and all the other works (UIModalTransitionStyleCoverVertical, UIModalTransitionStyleCrossDissolve, UIModalTransitionStylePartialCurl)
I made an viewDidLoadProject (Utility App) and just add the animation code in the two view in viewDidLoad method.
Where is the problem? Is it an Apple bug? How can I have a flip transition AND my animation working in the second view?
Here is my example project: http://dl.dropbox.com/u/9204589/testFlipAnimation.zip

Answer 1

That seems more natural to start to play with the interface when all the system stuff is done, didAppear must be used for that purpose i believe (yes, it works :))
FlipsideViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
-(void)viewDidAppear:(BOOL)animated
{
UIImage *myImg = [UIImage imageNamed : #"Img72.png"];
UIImageView *myImgView =[ [UIImageView alloc] initWithImage: myImg ];
myImgView.frame= CGRectMake(250,50,72,72);
[self.view addSubview:myImgView];
[UIView animateWithDuration:0.5
delay: 0.0
options: UIViewAnimationOptionCurveEaseInOut
animations:^{
[UIView setAnimationRepeatCount:100.0];
[UIView setAnimationRepeatAutoreverses:YES];
myImgView.frame= CGRectMake(50,250,72,72);
}
completion:NULL];
[myImgView release];
[super viewDidAppear:animated];
}