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POhow to stop timers when leaving a "screen"
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  1. POhow to stop timers when leaving a "screen"
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    copied!<p>I have some timers running on a page that I am having trouble figuring out how to stop when I navigate away from that page, while the page is running. </p> <p>The call is coming from a button on another movie clip, which is invoking a function on Main.as. The </p> <p>function in Main.as does this:</p> <pre><code>public function goToIntro(){ removeChild(currentScreen); intro = new Intro(); addChildAt(intro,0); currentScreen = intro; } </code></pre> <p>I get this error message if I click the Intro button while any scene with timers is playing. The message </p> <p>doesn't come up right away, it appears just as the Intro "scene" is ending and calling the next scene.</p> <pre><code>TypeError: Error #1009: Cannot access a property or method of a null object reference. at MethodInfo-202() at flash.utils::Timer/_timerDispatch() at flash.utils::Timer/tick() </code></pre> <p>I have this code on the Intro page, that is supposed to handle cleaning it up when it is removed.</p> <pre><code>public function Intro() { addEventListener(Event.REMOVED_FROM_STAGE, removedHandler); private function removedHandler(event:Event):void { } </code></pre> <p>I cannot figure out how to kill the timers from the removedHander function. I tried removing the event listeners but that causes other error messages. I tried doing a test if the listener is not null, then stopping it. That apparently never runs (I used trace statements to test it). I tried testing if the timer was .running and then stopping it, but that didnt work either.</p> <p>Help! </p> <p>Also, I am a complete newbie to actionscript and programming so it's ok to talk to me like I was a 5 year old. Thanks</p>
 

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