NSArray *myImages = [NSArray arrayWithObjects: 
      [UIImage imageNamed:@"myImage1.png"], 
      [UIImage imageNamed:@"myImage2.png"], 
      [UIImage imageNamed:@"myImage3.png"], 
      [UIImage imageNamed:@"myImage4.gif"], nil]; 
UIImageView *myAnimatedView = [UIImageView alloc]; 
[myAnimatedView initWithFrame:[self bounds]]; 
myAnimatedView.animationImages = myImages; 
myAnimatedView.animationDuration = 0.25;
myAnimatedView.animationRepeatCount = 0;
[myAnimatedView startAnimating]; 
[self addSubview:myAnimatedView];
[myAnimatedView release];