Using standard refresh button

Programmer Question

I'm trying to display a small refresh button using UIButton in a standard UIView using the refresh icon built into UIKit. If I use an UIBarButtonItem it can be created as a refresh button, but I've had no luck in using this icon in other places.

So far I've tried to "steal" the refresh image of a UIBarButtonItem using the code below, but the image returned is nil:

UIBarButtonItem *temp = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:nil action:nil];
self.refreshButton.imageView.image = temp.image;
[temp release];

Any suggestions, or do I have to provide a refresh image myself?

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