title: How should I update a scheduled selector's interval?
body: <p>I have a scheduled selector and I want to update the interval, I've tried calling</p>
  
  <pre><code>[self schedule:@selector(method) interval:1];
  </code></pre>
  
  <p>But it gives me this log: </p>
  
  <blockquote>
    <p>CCScheduler#scheduleSelector. Selector already scheduled. Updating
    interval from: 0.12 to 1.00</p>
  </blockquote>
  
  <p>Is it correct to do it like this or should I unschedule it first?</p>