本文介绍了从.as文件添加到ActionScript 3中的舞台的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 注意：是的，我知道以前也曾问过类似的问题。但是，在遵循了此类问题的答案之后，我仍然卡住，无法找到解决问题的方法。Note: Yes, I know that similar questions have been asked before. However, after following the answers in such questions I'm still stuck and can't find a solution to my problem.我遇到了需要添加DisplayObjects的问题进入Flash阶段。由于必须显示几个不同类的元素，因此我决定创建一个类来充当.as文件和 addChild 函数 Displayer之间的中介，如图所示I'm having a problem which requires adding DisplayObjects to the Flash stage. Since I have to Display elements of several different classes, I decided to create a class to work as an intermediary between the .as files and the addChild function called "Displayer" as shown below:package{ import flash.display.DisplayObject; import flash.display.Sprite; import flash.display.Stage; public class Displayer extends Sprite //I read somewhere that DisplayObject//as an extension can't be used for this, so Sprite will have to do. { private var _stage:Stage; function Displayer() { _stage = new Stage; } public function displayElement(displayable:DisplayObject) { _stage.addChild(displayable); } }}我编译它并出现我不明白的问题：错误＃2012：无法实例化Stage类。显然，此代码中的某些内容丢失或不适当，但是由于它非常简单，所以我看不到问题出在哪里。我确信它不是很复杂，我可能只需要一个局外人的视角。I compile it and there appears a problem that I don't understand: Error #2012: Can't instantiate Stage class. Evidently, something in this code is either missing or out of place, but since it's so straightforward I fail to see what the problem can be. I'm sure that it's not very complicated, I probably just need an outsider's perspective.推荐答案 Stage对象不能全局访问。您需要通过DisplayObject实例的stage属性访问它。The Stage object is not globally accessible. You need to access it through the stage property of a DisplayObject instance.请参考以下文档。 http://help.adobe.com/zh_CN/ FlashPlatform / reference / actionscript / 3 / flash / display / Stage.htmlpackage{ import flash.display.DisplayObject; import flash.display.Sprite; import flash.display.Stage; public class Displayer extends Sprite { var isAddedToStage:Boolean; public function Displayer() { if(stage) init(); else addEventListener(Event.ADDED_TO_STAGE, init); } private function init(e:Event=null):void { removeEventListener(Event.ADDED_TO_STAGE, init); isAddedToStage = true; } public function displayElement(displayable:DisplayObject):void { if(isAddedToStage) this.stage.addChild(displayable); } }} 这篇关于从.as文件添加到ActionScript 3中的舞台的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！
