title: iPhone: how to make key click sound for custom keypad?
body: <p>Is there a way to programmatically invoke the keypad "click" sound?  My app has a custom keypad (built out of UIButtons) and I'd like to provide some audio feedback when the user taps on the keys.  I tried creating my own sounds in Garageband, but wasn't happy with any of my creations.  If there isn't a standard way to invoke the key click, can anyone point me to a library of sounds that might have such a gem?</p>