UIActivityIndicatorView inside UIBarButtonItem

[zenox]

Im trying to add a UIActivityIndicatorView inside of a UIBarButtonItem. I am using the following code:

	UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
	[activityIndicator startAnimating];

	UIBarButtonItem *activityBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:activityIndicator];
	[activityIndicator release];

	self.navigationItem.rightBarButtonItem = activityBarButtonItem;
	[activityBarButtonItem release];

This code sets the activity indicator as the right bar button item, but it is not displayed like a button (just the indicator, no border, etc). Anyone know what I am doing wrong here?

[BrianSlick]

I'm pretty sure (could be wrong) that once you go with a custom view, you lose any of the auto-button-pretty-stuff. Why would you want it to look like a button anyway? Seems like an odd choice.

Worst case, build your own view containing the spinner and any graphics required to make it look like a button.