flex内存泄露解决之道
（1）Event Listeners
Listening to parent objects does cause memory leaks
e.g.
override protected function mouseDownHandler(…):void {
systemManager.addEventListener(“mouseUp”, mouseUpHandler);
you can:
1.Removing the addEventListener (when dispose).
systemManager.removeEventListener(“mouseUp”, mouseUpHandler);
2. Use of weak reference listeners
override protected function mouseDownHandler(…):void {
systemManager.addEventListener(“mouseUp”, mouseUpHandler, false, 0, true);
These do not block garbage collection(generally do not cause memory leaks):
Weak References
Self References
References to Child Objects
weak reference event listener e.g.
&nb
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<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the DateTimeAxis class. -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
import mx.collections.ArrayCollection;
......
import flash.events.Event;
import flash.net.URLLoader;
import flash.net.URLRequest;
private var loader:URLLoader = new URLLoader();
private var request:URLRequest = new URLRequest("a.txt");
private function initComplete():void
{
......
FLEX编译的SWF文件，只能选择访问本地文件或访问网络文件，二者只能取一（嗯，为什么？我也不知道，官方说是为了安全考虑），而FLEX编译的默认选项是只能访问网络文件，所以你将bin里的东西COPY到其他地方就不能读取了。而你在默认的bin目录下可以读取得到，是因为FLEX认为你是在IDE环境种，这时是没有这个所谓的安全限制的 ......
Blinds.as
package effects
{
import effects.effectClasses.BlindsInstance;
import mx.controls.scrollClasses.ScrollBarDirection;
import mx.effects.IEffectInstance;
import mx.effects.TweenEffect;
public class Blinds extends TweenEffect
{
......
Flex使用Loader和URLRequest加载本地图片示例：
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:Script>
<
