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从另一个函数访问类实例-getDefinitionByName(AS3)

[英]Access class instance from another function - getDefinitionByName(AS3)

I have a function, sceneLoader, that will instantiate an object of the Class Scene1 from a string using getDefinitionByName. 我有一个SceneLoader函数,它将使用getDefinitionByName从字符串实例化Scene1类的对象。 I then want to access a function (sceneHandler) in Scene1, from another function. 然后,我想从另一个函数访问Scene1中的一个函数(sceneHandler)。

public class Main extends MovieClip{

    private var sceneNumber:int = 1;
    private var SceneRef:Class;
    private var sceneString:String;

    public function Main(){
        sceneLoader();
        responseHandler();
    }

    private function sceneLoader():void{
        sceneString = "Scene" + int(sceneNumber);
        SceneRef = getDefinitionByName(sceneString) as Class;
        var scene = new SceneRef();
        addChild(scene);
    }
    private function responseHandler():void{
        scene.sceneHandler(); //Obviously this will not work
    }
}

Class Scene1 类场景1

public class Scene1 extends MovieClip{
    public function sceneHandler():void{
        //Do something
    }
}

The problem is that scene is out of scope. 问题在于场景超出范围。 I cannot instantiate Scene1 outside the function as I need to first call getDefinitionByName. 我无法在函数外部实例化Scene1,因为我需要先调用getDefinitionByName。 I also want to keep the function for loading scenes later on. 我也想保留以后加载场景的功能。 How can I call sceneHandler from responseHandler? 如何从responseHandler调用sceneHandler?

EDIT: I've tried 编辑:我试过了

public class Main extends MovieClip{

    private var sceneNumber:int = 1;
    private var SceneRef:Class;
    private var sceneString:String;

    public function Main(){
        sceneLoader();
        responseHandler();
    }

    private function sceneLoader():void{
        addChild(getScene());//Does not work
    }

    private function responseHandler():void{
        getScene().sceneHandler(); //Works now
    }

    private function getScene():Object{
        sceneString = "Scene" + int(sceneNumber);
        SceneRef = getDefinitionByName(sceneString) as Class;
        var scene = new SceneRef();
        //addChild(getScene());//This does work but doesn't suit my need
        return scene;
     }
}

Now I can't add the object to the stage. 现在,我无法将对象添加到舞台上。 I get the Error: 我得到错误:

Implicit coercion of a value with static type Object to a possibly unrelated type flash.display:DisplayObject. 将静态类型为Object的值隐式强制为可能不相关的类型flash.display:DisplayObject。

I figured it out. 我想到了。 I just forgot to cast as a DisplayObject. 我只是忘记转换为DisplayObject。

public class Main extends MovieClip{

    private var sceneNumber:int = 1;
    private var SceneRef:Class;
    private var sceneString:String;

    public function Main(){
        sceneLoader();
        responseHandler();
    }

    private function sceneLoader():void{
        addChild(getScene() as DisplayObject);
    }

    private function responseHandler():void{
        getScene().sceneHandler();
    }

    private function getScene():Object{
        sceneString = "Scene" + int(sceneNumber);
        SceneRef = getDefinitionByName(sceneString) as Class;
        var scene = new SceneRef();
        return scene;
     }
}

Obviously: 明显:

import flash.display.DisplayObject;

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