I have three images that I want to cycle through when clicking on a UIButton.

How would I go about doing this?

This is what I have so far, but it's not really working.

//the images
NSString* imageNames[] = {"MyFirstImage", "AnotherImage", whatever else};
int currentImageIndex = 0;

and

- (IBAction)change{
UIImage* imageToShow = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource: imageNames[currentImageIndex] ofType:@"png"];

if( currentImageIndex++ == sizeof(imageNames)/sizeof(NSString)) //check to see if you hit the last image
{
   currentImageIndex = 0; //start over
}
}

Ideas?

Any help will be greatly appreciated! Thanks!