From: Tim Hunter <TimHunter@...>
Date: 2008-04-13T02:17:37+09:00
Subject: Re: Instance Variable On-Change

Ryan Lewis wrote:
> I need to make a way to run a method when class' instance variable
> changes from false to true and only run it once. But I have no idea how
> to do this.
> 
> Any ideas?

Check out the observer library.

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