亚当史密斯的回答已经解释了为什么你会得到“instance235”,所以我将解释一个解决stage
对象name
属性等于 null 的方法。
您可以为该stage
对象创建一个包装类,并为该类提供一个名为name
. 包装器类也必须是的子类,EventDispatcher
以便您可以覆盖它的addEventListener()
方法并更改其功能,以便您将事件侦听器隐式添加到舞台对象和包装器对象。解释它的最好方法是向您展示我制作的一个示例:
package
{
import flash.display.DisplayObject;
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
public class Main extends Sprite
{
private var _stageWrapper:StageWrapper;
public function Main():void
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}// end function
private function init(e:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
var stageWrapper:StageWrapper = new StageWrapper(stage, "stage");
stageWrapper.addEventListener(MouseEvent.CLICK, onStageWrapperClick);
}// end function
private function onStageWrapperClick(e:MouseEvent):void
{
trace(e.target.name) // output: stage
}// end function
}// end class
}// end package
import flash.display.Stage;
import flash.events.Event;
import flash.events.EventDispatcher;
import flash.events.MouseEvent;
internal class StageWrapper extends EventDispatcher
{
private var _stage:Stage;
private var _name:String;
private var _listener:Function;
public function get stage():Stage { return _stage }
public function get name():String { return _name }
public function StageWrapper(stage:Stage, name:String)
{
_stage = stage;
_name = name;
}// end function
override public function addEventListener(type:String,
listener:Function,
useCapture:Boolean = false,
priority:int = 0,
useWeakReference:Boolean = false):void
{
super.addEventListener(type, listener, useCapture, priority, useWeakReference);
_stage.addEventListener(type, onStageEvent, useCapture, priority, useWeakReference);
}// end function
private function onStageEvent(e:Event):void
{
dispatchEvent(e);
}// end function
}// end class
就我个人而言,我不会采用这种方法,但这是我可以为您提供的最佳答案,以了解您似乎正在采用的方向。