iOS5 combine CGAffineTransform with animationImages? - animation

Question

I'm pretty new to iOS animation and I'm wondering if it's possible to combine an transition between two images along with a translation animation of the UIImageView using CGAffineTransform?
In other words I have two images that I want to animate between, and then I want to apply a simultaneous translation so that the whole thing moves across the page while moving back and forth between the two images.
I know I can apply a CGAffineTransformConcat to combine two CGAffineTransforms such as a CGAffineTransformTranslate and something else. But I don't see a CGAffineTransform which allows me to transition to another UIImage.
The only way I know to animate between images is to use the UIImageView animationImages array combined with startAnimating. However, I don't know how to combine this with a translation like so:
UIImageView* textView = [[UIImageView alloc] initWithFrame:bunnyImage.frame];
textView.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"bunnyclose.png"],
[UIImage imageNamed:#"bunnytalk.png"],
nil];
textView.animationDuration = 1.0;
textView.animationRepeatCount = 8;
[textView startAnimating];
[self.view addSubview:textView];
Any suggestions?

Answer 1

In answer to my own question, the block animation function transitionFromView:toView:duration:options:completion as discussed in "Creating Animated Transitions Between Views" is the best solution that I have come up with yet. I use this to animate between images and this can be combined with the block animation animateWithDuration:delay:options:animations:completion: using CGAffineTransformTranslate or simply by changing the center of the UIImageView as discussed in Animations.
Reworking my original codeblock and adding my translation looks something like this:
UIImageView* bunny2View = [[UIImageView alloc] initWithFrame:bunny2Image.frame];
[UIView
transitionFromView:bunny2Image
toView:bunny2View
duration:10.0
options:UIViewAnimationOptionShowHideTransitionViews
completion:^(BOOL finished) {
[UIView
animateWithDuration:dur
animations:^(void) {
CGPoint center = bunny2Image.center;
center.y += deltay;
bunny2Image.center = center;
bunny2View.center = center;
}
completion:^(BOOL finished) {
[UIView
transitionFromView:bunny2View
toView:bunny2Image
duration:10.0
options:UIViewAnimationOptionShowHideTransitionViews
completion:nil];
}];
}];
Still a work in progress, but this is what I've come up with so far!