iPhone Dev: Animating PNG Sequences

Question

What is the best or recommended technique for animating PNG Sequences.
Heres what I\'ve learned:

Do it Manually
Using M

Answer 1

Example to animate arrows

    UIImage* img1 = [UIImage imageNamed:@"fleche1.png"];
    UIImage* img2 = [UIImage imageNamed:@"fleche2.png"];

    NSArray *images = [NSArray arrayWithObjects:img1,img2, nil];
    UIImageView* imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, 0.0, 160.0, 160.0)];
    [imageView setAnimationImages:images];
    [imageView setAnimationRepeatCount:100];
    [imageView setAnimationDuration:3.0];
    imageView.center = myView.center;


    [imageView startAnimating];
    [myView addSubview:imageView];
    [imageView release];