iOS: How to create an animation with a series of images

ios_image_anim.m

NSArray *myImages = [NSArray arrayWithObjects: 
        [UIImage imageNamed:@"1.png"], 
        [UIImage imageNamed:@"2.png"], 
        [UIImage imageNamed:@"3.jpg"], 
        [UIImage imageNamed:@"4.gif"], nil];

UIImageView *myAnimatedView = [UIImageView alloc]; 
[myAnimatedView initWithFrame:[self bounds]]; 
myAnimatedView.animationImages = myImages; 
myAnimatedView.animationDuration = 0.25; // seconds 
myAnimatedView.animationRepeatCount = 0; // 0 = loops forever 
[myAnimatedView startAnimating]; 
[self addSubview:myAnimatedView]; 
[myAnimatedView release];