How to use activity indicator view on iPhone?

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Create:

spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
[spinner setCenter:CGPointMake(kScreenWidth/2.0, kScreenHeight/2.0)]; // I do this because I'm in landscape mode
[self.view addSubview:spinner]; // spinner is not visible until started

Start:

[spinner startAnimating];

Stop:

 [spinner stopAnimating];

When you’re finally done, remove the spinner from the view and release.

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