AIR - 按比例调整本机窗口大小

我的应用程序启动时舞台尺寸为 1000 x 500，长宽比为 2:1。本机窗口具有系统镶边，它总是会高一些像素。

怎么可能只允许本机窗口按比例调整大小以始终保持舞台的 2:1 宽高比？

以下代码无法按我的预期工作：

package
{
//Imports
import flash.display.NativeWindow;
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.events.Event;
import flash.events.NativeWindowBoundsEvent;

//Class
[SWF(width="1000", height="500", frameRate="60", backgroundColor="#000000")]
public class WindowTest extends Sprite
    {
    //Constants
    private static const ASPECT_RATIO:Number = 2.0; //2:1 Aspect Ratio

    //Constructor
    public function WindowTest()
        {
        init();
        }

    //Initialization
    private function init():void
        {
        stage.scaleMode = StageScaleMode.NO_SCALE;
        stage.align = StageAlign.TOP_LEFT;
        stage.nativeWindow.addEventListener(NativeWindowBoundsEvent.RESIZE, windowResizeEventHandler);
        }

    //Window Resize Event Handler
    private function windowResizeEventHandler(evt:NativeWindowBoundsEvent):void
        {
        evt.currentTarget.width = stage.stageHeight * ASPECT_RATIO;
        }
    }
}

防止默认事件，并手动调整窗口大小：
编辑：看起来，空气以一种奇怪的方式计算宽度，因此为了防止开始时闪烁，在 SWF 标签中将窗口大小设置为 1050x500。

package{
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.events.Event;
import flash.events.NativeWindowBoundsEvent;

//Class
[SWF(width="1000", height="500", frameRate="60", backgroundColor="#000000")]
public class airtest extends Sprite
{
    //Constants
    private static const ASPECT_RATIO:Number = 2.0; //2:1 Aspect Ratio

    //Constructor
    public function airtest()
    {
        init();
    }

    //Initialization


private function init():void
    {
        stage.scaleMode = StageScaleMode.NO_SCALE;
        stage.align = StageAlign.TOP_LEFT;
        stage.nativeWindow.addEventListener(NativeWindowBoundsEvent.RESIZING, windowResizeEventHandler);
    }

    private function windowResizeEventHandler(evt:NativeWindowBoundsEvent):void
    {
        evt.preventDefault()
        if (evt.beforeBounds.width != evt.afterBounds.width){//user resizes width
            evt.currentTarget.width = evt.afterBounds.width
            evt.currentTarget.height = evt.afterBounds.width/ASPECT_RATIO;
        } else if (evt.beforeBounds.height != evt.afterBounds.height){
            evt.currentTarget.height = evt.afterBounds.height
            evt.currentTarget.width = evt.afterBounds.height*ASPECT_RATIO;
        }

    }
}
}