如何prevent Event.Resize触发两次的displayState变化FULL_SCREEN？两次、Event、prevent、Resize

2023-09-08 15:13:13 作者：难赴清河.

我有一个全屏按钮，当点击该按钮更改舞台的displayState为 StageDisplayState.FULL_SCREEN_INTERACTIVE 的应用程序。

I have an application with an fullscreen button, when that button is clicked I change the displayState of stage to StageDisplayState.FULL_SCREEN_INTERACTIVE.

这使得 Event.RESIZE 火两次，如果在Stage.scaleMode = StageScaleMode.NO_SCALE时。

That makes Event.RESIZE fire twice if stage.scaleMode = StageScaleMode.NO_SCALE.

本次活动只fireing一次，如果我变回 stage.displayState = StageDisplayState.NORMAL 。

The event is only fireing once if i change back to stage.displayState = StageDisplayState.NORMAL.

任何人都知道一个好办法prevent的Event.RESIZE从除直接调用函数的onResize或实现自定义事件fireing两次？

Anyone know a good way to prevent the Event.RESIZE from fireing twice except calling the onResize function directly or implementing a custom event?

样品code重现该问题：

Sample code that reproduces the issue:

package test
{
    import flash.display.Sprite;
    import flash.display.StageDisplayState;
    import flash.display.StageScaleMode;
    import flash.events.Event;
    import flash.events.MouseEvent;

    public class Main extends Sprite 
    {

        public function Main():void 
        {
            if (stage) 
                this.init();                
            else 
                this.addEventListener(Event.ADDED_TO_STAGE, init);
        }

        private function init(e:Event = null):void 
        {
            this.removeEventListener(Event.ADDED_TO_STAGE, init);
            stage.addEventListener(Event.RESIZE, onResize);
            stage.scaleMode = StageScaleMode.NO_SCALE;

            var button:Sprite = new Sprite();
            button.mouseEnabled = true;
            button.addEventListener(MouseEvent.CLICK, doResize);
            button.graphics.lineStyle(3,0x00ff00);
            button.graphics.beginFill(0x0000FF);
            button.graphics.drawRect(10, 10, 100, 100);
            button.graphics.endFill();

            this.addChild(button);
        }

        private function doResize(e:MouseEvent) : void {
            if (stage.displayState == StageDisplayState.NORMAL) {
                stage.displayState = StageDisplayState.FULL_SCREEN_INTERACTIVE;                
            }
            else {
                stage.displayState = StageDisplayState.NORMAL;
            }           
        }

        private function onResize(e:Event) : void {
            trace("onResize", stage.displayState);
        }       
    }   
}

进一步的调查表明，这似乎是切换到全屏的两个步骤，第一个调整到 StageDisplayState.NORMAL 再到 StageDisplayState.FULL_SCREEN_INTERACTIVE 。

如何prevent Event.Resize触发两次的displayState变化FULL_SCREEN？两次、Event、prevent、Resize

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