基本响应应用程序

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

    public class Main extends Sprite 
    {        
        //Document Class Main Constructor
        public function Main() 
        {
            //Sometimes stage isn't available yet, so if not, wait for it before proceeding
            if (!stage) {
                addEventListener(Event.ADDED_TO_STAGE, stageReady);
            }else {
                stageReady();
            }
        }
        
        protected function stageReady(e:Event = null):void {
            //align the stage to the top left corner of the window/container
            stage.align = StageAlign.TOP_LEFT;
            //don't scale the content when the window resizes
            stage.scaleMode = StageScaleMode.NO_SCALE;
            
            //listen for when the window is resized
            stage.addEventListener(Event.RESIZE, stageResized);
        }
        
        protected function stageResized(e:Event):void {
            //use stage.stageWdith & stage.stageHeight to repostion and resize items
        }   
    }
}