Is there a way to produce animations beyond stacks of images in UIImage?

I'm fairly new to iOS development, and I was wondering: is there a way to produce animations on the iPhone besides creating a bunch of still images and animating them in a UIImageView? What are the other methods for 开发者_如何学Gocreating a moving animation on iOS?

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Apple has an entire framework called Core Animation that is built to help you make animations within your interface. I recommend checking out the various resources listed in this question for learning how to use Core Animation in its various forms.

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Simple animations can be easily done by transforming views within the [UIView beginAnimations: context:] and [UIView commitAnimations].

For example, to scale the current view, you would :

[UIView beginAnimations:@"auxviewclose" context:NULL];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
self.frame = CGRectMake(0, self.superview.frame.size.height-45, self.frame.size.width, 45);
[UIView commitAnimations];