Deselect UIButton on touch down outside

I have a UIButton that selects itself on 开发者_如何学PythonUIControlEventTouchUpInside. It deselects itself on UIControlEventTouchUpOutside. I also want it to deselect itself when there is a touch down outside of the button. Is there a good way to do this without subclassing UIWindow and overriding -hitTest:withEvent:?

EDIT: I just found this question, which confirms my fear that there isn't a really clean way to do this.

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This is not how buttons are supposed to work. They cannot be active if there is no touch active inside them. What are you really trying to implement? Maybe a UIBUtton is not the best choice here.

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You can do this with your UIViewController by implementing the touchesBegan/Moved/Ended methods. If they detect a touch outside of the button, set its state back to normal. Take a look at Event Handling.

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I solved this, and released the source. I didn't have to subclass UIWindow, but I did need to override -hitTest:withEvent:.