我有一个带有全屏按钮的应用程序,当单击该按钮时,我将舞台的 displayState 更改为StageDisplayState.FULL_SCREEN_INTERACTIVE
.
如果 .那会Event.RESIZE
引起两次火灾stage.scaleMode = StageScaleMode.NO_SCALE
。
如果我改回stage.displayState = StageDisplayState.NORMAL
.
除了直接调用 onResize 函数或实现自定义事件之外,任何人都知道防止 Event.RESIZE 触发两次的好方法吗?
重现问题的示例代码:
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);
}
}
}
进一步调查表明,切换到全屏似乎需要两个步骤,首先将大小调整为 a StageDisplayState.NORMAL
,然后再调整为StageDisplayState.FULL_SCREEN_INTERACTIVE
.