Question

我在Adobe Air应用程序中有一个数据组组件，我在其中使用了自定义itemrenderer，我附加了itemRenderer的源代码以及我附加的分析，

问题：当我从其他模块返回到当时具有此数据组的模块时，它再次为itemrender创建对象，并且itemrender的上一个对象不会被释放。

如果您有任何想法，请建议我

<?xml version="1.0" encoding="utf-8"?>
<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
                xmlns:s="library://ns.adobe.com/flex/spark"
                xmlns:mx="library://ns.adobe.com/flex/mx"
                autoDrawBackground="false"
                buttonMode="true"
                click="clickHandler(event)"
                mouseChildren="false"
                rollOut="rollOutHandler(event)"
                rollOver="rollOverHandler(event)"
                removedFromStage="itemrenderer1_removedFromStageHandler(event)"
                creationComplete="itemrenderer1_creationCompleteHandler(event)">
    <fx:Script>
        <![CDATA[
            import coX.XXXXXXXXXXXXXXX.event.ThumbEvent;

            import mx.events.FlexEvent;

            protected function image_completeHandler(event:Event):void
            {
                ConsoleUtils.logIt(" ThumbImage.mxml :image_completeHandler - ");
                image.removeEventListener(Event.COMPLETE, image_completeHandler);
                fadeIn.target=image;
                fadeIn.play();
            }

            protected function clickHandler(event:MouseEvent):void
            {
                owner.dispatchEvent(new ThumbEvent("itemclick", data, itemIndex));
            }

            protected function rollOverHandler(event:MouseEvent):void
            {
                owner.dispatchEvent(new ThumbEvent("itemrollover", data, itemIndex));
            }

            protected function rollOutHandler(event:MouseEvent):void
            {
                owner.dispatchEvent(new ThumbEvent("itemrollout", data, itemIndex));
            }

            protected function itemrenderer1_removedFromStageHandler(event:Event):void
            {
                this.removeEventListener(Event.REMOVED_FROM_STAGE, itemrenderer1_removedFromStageHandler);
                this.removeEventListener(MouseEvent.ROLL_OUT, rollOutHandler);
                this.removeEventListener(MouseEvent.ROLL_OVER, rollOverHandler);
                this.removeEventListener(MouseEvent.CLICK, clickHandler);

                this.removeAllElements();
            }

            protected function itemrenderer1_creationCompleteHandler(event:FlexEvent):void
            {
                this.removeEventListener(FlexEvent.CREATION_COMPLETE, itemrenderer1_creationCompleteHandler);
                image.source="test.png";
                //image.addEventListener(Event.COMPLETE, image_completeHandler);
            }

        ]]>
    </fx:Script>
    <fx:Declarations>
        <s:Fade id="fadeIn"
                alphaFrom="0"
                alphaTo="1"/>
    </fx:Declarations>

    <s:BitmapImage id="image"

                   horizontalAlign="center"
                   smooth="true"
                   smoothingQuality="high"
                   verticalAlign="middle"/>
    </s:ItemRenderer>

分析快照 profiling_snapshot_which_shows_memory_leak

正如你所看到的，在个人资料中，我有21个孤儿对象，这些对象不会重新发送，并且分析显示我在第12行保存，而第12行是creation_complete事件，我已将其删除。

先谢谢

Answer 1

我使用DataGroup作为父组件，我在itemRenderer的{{1}}属性中定义了上面的itemRenderer，而在dispose函数中我定义DataGroup为null DataGroup.itemRenderer。所以它有资格获得GC。我看到现在没有itemRenderer的实例在内存中。

DataGroup的Itemrender不会释放内存 - flex（Adobe air）

1 个答案: