Question

好吧，我不知道我是怎么做到的，可能是AS3众神在我编码之后我的滚动条工作时对我很生气，没有错误。但我有一个非常奇怪的问题。我有三个不同的按钮，它们没有相互嵌套，并且它们具有用于调用函数的鼠标单击的事件监听器。每当点击这三个按钮中的一个时，它就会调用它应该具有的功能以及来自swf生命周期的所有前一个按钮。我不知道这是怎么回事，说实话我很震惊，我，我感到震惊。这是怎么回事？是eventListeners的东西？也许是URLLoader的东西？我不知道，我已经追踪到了每一步，我什么也没有，所以我把自己扔到了更聪明的程序员面前，希望你们中的一位尊敬的绅士和绅士知道我做错了什么，请怜悯一个可怜的程序员的灵魂。

文档类文件 Pastie

package {

    import gs.TweenMax;
    import gs.easing.*;
    import flash.display.*;
    import flash.events.*;
    import flash.ui.Keyboard;
    import flash.net.*;
    import flash.external.ExternalInterface;
    import FullScreenScrollBar;

    public class Gessner extends MovieClip {

        //====================================Declare Variables================================//
        var objectsArray:Array = ["whatwedo_bkg", "whoweare_bkg", "howmuch_bkg", "needsome_bkg"];
        var images:Array = [];
        var instances:Array = [];
        var imageInstances:Array = [];
        var paginationButtons:Array =[];
        //=====================================================================================//

    private var xmlLoader:URLLoader = new URLLoader();
    private var xmlData:XML = new XML();

    //======================================================================================
    public function initXML(e:Event) {
    //======================================================================================
        var target:String = e.currentTarget.name;
        if (e.currentTarget.name == "recent_projects" || e.currentTarget.name == "whoweare") {
            xmlLoader.addEventListener(Event.COMPLETE, onCompleteXML);
            xmlLoader.load(new URLRequest("http://www.gessnerengineering.com/projects"));
        } else if (e.currentTarget.name == "our_staff") {
            xmlLoader.addEventListener(Event.COMPLETE, onCompleteXML);
            xmlLoader.load(new URLRequest("http://www.gessnerengineering.com/profiles"));
        }

        //========================================================================
         function onCompleteXML(e:Event):void {
        //========================================================================
            xmlData = new XML(e.currentTarget.data);
            makePagination();
            trace("onCompleteXML() target: " + target);
            if (target == "recent_projects" || target == "whoweare") {
                trace("loadProjectXML() got called from onCompleteXML();");
                loadProjectsXML(0, xmlData);
            } else if (target == "our_staff") {
                loadStaffXML(0, xmlData);
            }
        }

        //========================================================================
         function makePagination():void {
        //========================================================================
            var pages:Number;
            trace("makePagination() target: " + target);
            if (target == "recent_projects" || target == "whoweare") {
                pages = Math.ceil(xmlData.project.length() / 13);
            } else if (target == "our_staff") {
                pages = Math.ceil(xmlData.profile.length() / 13);
            }
            for (var i:Number = 0; i < pages; i++) {
                var tmp:pageNum = new pageNum();
                var startX:Number = -(((pages * 50) - 10) / 2);
                tmp.Id = i * 13;
                tmp.x = startX;
                startX += 50;
                tmp.y = 0;
                tmp.label.text = String(i+1);
                tmp.buttonMode = true;
                tmp.mouseChildren = false;
                tmp.useHandCursor = true;
                tmp.addEventListener(MouseEvent.CLICK, onChangePage);
                Gessner(root).pages.whoweare_bkg.pagination.addChild(tmp);
                paginationButtons.push(Gessner(root).pages.whoweare_bkg.pagination.getChildByName(tmp.name));
            }
        }

        //========================================================================
        function onChangePage (e:MouseEvent):void {
        //========================================================================
            if (target == "recent_projects" || target == "whoweare") {
                trace("loadProjectXML() got called from onChangePage();");
                loadProjectsXML(e.currentTarget.Id as Number, xmlData);
            } else {
                loadStaffXML(e.currentTarget.Id as Number, xmlData);
            }
        }
    }


    //======================================================================================
    public function loadProjectsXML(startNum:Number, xmlData:XML):void {
    //======================================================================================
        removeAll();
        var index:int = 1;
        var endNum:Number = startNum + 13;
        if (endNum > xmlData.project.length()) {
            endNum = xmlData.project.length();
            //trace("projectENDNUM" + endNum);
        }
        for(startNum; startNum < endNum; startNum++) {
            var instance:String = "cont" + index;
            var imageURL:String = "http://www.gessnerengineering.com/system/files/" + xmlData.project[startNum].assets.asset[0]["id"] + "/thumb/" + xmlData.project[startNum].assets.asset[0]["file-file-name"];

            loadImage(imageURL, instance);
            Gessner(root).pages.whoweare_bkg[instance].title.text = xmlData.project[startNum].name;
            Gessner(root).pages.whoweare_bkg[instance].description.text = xmlData.project[startNum].description;
            instances.push(instance);

            index++;
        }
    }

    //=======================================================================================
    public function loadStaffXML(startNum:Number, xmlData:XML):void {
    //=======================================================================================
        removeAll();
        var index:int = 1;
        var endNum:Number = startNum + 13;
        if (endNum > xmlData.profile.length()) {
            endNum = xmlData.profile.length();
            ////trace("endNUM" + endNum);
        }
        for(startNum; startNum < endNum; startNum++) {
            var instance:String = "cont" + index;
            var imageURL:String = "http://www.gessnerengineering.com/system/avatars/" + xmlData.profile[startNum]["id"] + "/thumb/" + xmlData.profile[startNum]["avatar-file-name"];

            loadImage(imageURL, instance);
            Gessner(root).pages.whoweare_bkg[instance].title.text = xmlData.profile[startNum]["user-id"];
            Gessner(root).pages.whoweare_bkg[instance].description.text = xmlData.profile[startNum]["bio"];
            instances.push(instance);
            index++;
        }
    }

    //=======================================================================================
    private function loadImage(imageURL:String, instance:String):void {
    //=======================================================================================
            var imageLoader:Loader = new Loader();
            var imageRequest = new URLRequest(imageURL);

            imageLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
            imageLoader.load(imageRequest);

            function onComplete(e:Event) {
                var image:Bitmap = (Bitmap)(e.currentTarget.content);
                Gessner(root).pages.whoweare_bkg[instance].thumb.addChild(image);
                images.push(Gessner(root).pages.whoweare_bkg[instance].thumb.getChildByName(image.name));
                imageInstances.push(instance);
                //imageLoader.unload();
            }
    }

    //=======================================================================================
    private function removeAll():void {
    //=======================================================================================
        var lengthOfIndex:uint = instances.length;
        /*for each(var button:DisplayObject in paginationButtons) {
            Gessner(root).pages.whoweare_bkg.pagination.removeChild(button);
        }*/
        for (var i:uint = 0; i < lengthOfIndex; i++) {              
            Gessner(root).pages.whoweare_bkg[instances[i]]["title"].text = "";
            Gessner(root).pages.whoweare_bkg[instances[i]]["description"].text = "";
            try {
            Gessner(root).pages.whoweare_bkg[imageInstances[i]].thumb.removeChild(images[i]);
            } catch (ArgumentError) {
                //trace("error: " + images[i].name + "::" + instances[i]);
            }
        }
        paginationButtons.splice(0, paginationButtons.length);
        images.splice(0, lengthOfIndex);
        imageInstances.splice(0, lengthOfIndex);
        instances.splice(0, lengthOfIndex);         
    }
}

文档的时间轴操作

this.pages.whoweare_bkg.recent_projects.addEventListener(MouseEvent.CLICK, initXML);
this.pages.whoweare_bkg.our_staff.addEventListener(MouseEvent.CLICK, initXML);
this.whoweare.addEventListener(MouseEvent.CLICK, initXML);

输出 Pastie

##first click
makePagination() target: whoweare
onCompleteXML() target: whoweare
loadProjectXML() got called from onCompleteXML();
projectENDNUM3

##second click
makePagination() target: whoweare
onCompleteXML() target: whoweare
loadProjectXML() got called from onCompleteXML();
projectENDNUM3
makePagination() target: recent_projects
onCompleteXML() target: recent_projects
loadProjectXML() got called from onCompleteXML();
projectENDNUM3

##third click
makePagination() target: whoweare
onCompleteXML() target: whoweare
loadProjectXML() got called from onCompleteXML();
projectENDNUM3
makePagination() target: recent_projects
onCompleteXML() target: recent_projects
loadProjectXML() got called from onCompleteXML();
projectENDNUM3
makePagination() target: recent_projects
onCompleteXML() target: recent_projects
loadProjectXML() got called from onCompleteXML();
projectENDNUM3

##fourth click
makePagination() target: whoweare
onCompleteXML() target: whoweare
loadProjectXML() got called from onCompleteXML();
projectENDNUM3
makePagination() target: recent_projects
onCompleteXML() target: recent_projects
loadProjectXML() got called from onCompleteXML();
projectENDNUM3
makePagination() target: recent_projects
onCompleteXML() target: recent_projects
loadProjectXML() got called from onCompleteXML();
projectENDNUM3
makePagination() target: recent_projects
onCompleteXML() target: recent_projects
loadProjectXML() got called from onCompleteXML();
projectENDNUM3

and so on and so on

Answer 1

哦，我明白了。它就在这一部分：

xmlLoader.addEventListener(Event.COMPLETE, onCompleteXML);
xmlLoader.load(new URLRequest("http://www.gessnerengineering.com/projects"));

每次调用此代码时，都会向xmlLoader添加一个NEW事件侦听器。因此，每次调用它时，它都会调用onCompleteXML +1次。

Answer 2

看起来你并没有删除事件监听器 - 如果你想这样做的话。另外，你的目标变量是什么？我没有看到它声明的位置，你的意思是使用e.currentTarget还是什么？

Answer 3

检查您在时间轴上的操作，并确保在某处有stop()命令，并避免再次添加事件侦听器。

每当您在时间轴上输入关键帧时，都会添加您的事件侦听器。所以我猜你要去一个不同的框架，然后回到添加事件监听器的同一个框架。

调用ActionScript 3.0当前函数，以某种方式加上所有以前的函数

3 个答案: