AIR 3.5 Fullscreen StageScaleMode.SHOW_ALL bugg

Try this code to see if it helps:

<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                                                     xmlns:s="library://ns.adobe.com/flex/spark"
                                                     xmlns:mx="library://ns.adobe.com/flex/mx"
                                                     width="1280"
                                                     height="800"
                                                     applicationComplete="init()"
                                                     >
          <fx:Script>
                    <![CDATA[
  
                              private function init():void
                              {
                                        stage.align=StageAlign.TOP_LEFT;
                                        stage.scaleMode=StageScaleMode.NO_SCALE;
  
                                        stage.addEventListener(Event.RESIZE, handleResize);
                                        stage.dispatchEvent(new Event(Event.RESIZE)); 
                              }
  
                              private function handleResize(e:Event):void
                              { 
                                        btToggleFullscreen.x = stage.stageWidth/2 - btToggleFullscreen.width/2;
                                        btToggleFullscreen.y = stage.stageHeight/2 - btToggleFullscreen.height/2; 
                              }
  
                              private function toggleFullscreen():void
                              {
                                        if (stage.displayState == StageDisplayState.NORMAL)
                                                  stage.displayState = StageDisplayState.FULL_SCREEN;
                                        else
                                                  stage.displayState = StageDisplayState.NORMAL;
                              }
  
                    ]]>
          </fx:Script>
  
          <s:Button id="btToggleFullscreen" label="Toggle Fullscreen" click="toggleFullscreen()" />
  
</s:WindowedApplication>