A ground-up, home-made implementation of UIActivityIndicatorView.
Exactly like UIActivityIndicatorView.
Link with QuartzCore
AFActivityIndicatorView *loader = [[AFActivityIndicatorView alloc] initWithFrame:CGRectMake(60, 100, 50, 50)];
loader.activityIndicatorViewStyle = AFActivityIndicatorViewStyleWhite;
[loader startAnimating];
[self.view addSubview:loader];
Yes.
Because I felt like it.
I tried to spruce it up a little bit, and in the process I discovered that the current spinner design is actually really good, and shouldn't be meddled with.
Because now you can customize colours, etc.