How to add a Camera button into a UITabBar?

Does anyone know how to add a Camera button into a UITabBar开发者_高级运维, like the one we see in 'Path'? http://i.appsafari.com/wp-content/uploads/2010/11/path.jpg

Is it a extended UITabBar/UITabBarItem or an original class? Please let me know if you have any idea.

Thanks.

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I would bet it's a custom button floating on top of a "dummy" tab bar item. That's the first approach I'd try to implementing something like that, anyway.

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You can use this open source tab bar https://github.com/boctor/idev-recipes/tree/master/RaisedCenterTabBar

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@Taketo Sano one alternative to your problem is to give a custom image of camera like button (as you had given) to the tab bar