Another, but specific play/pause issue : <p>I'm trying to implement play/pause and stop buttons in a toolbar for a simple stopwatch app. See code at <a href="http://swiftstub.com/722226472" rel="nofollow">http://swiftstub.com/722226472</a>  I'm experiencing strange behavior: at first the play button does nothing. If I click on the stop button, the icon disappears and then the play/pause toggles and works correctly. Suggestions?  I'm using the latest swift and Xcode</p>
