StageOrientationEvent.ORIENTATION_CHANGE not Dispatching

Solved:

<?xml version="1.0" encoding="utf-8"?>

<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"

        xmlns:s="library://ns.adobe.com/flex/spark" title="HomeView" creationComplete="view1_creationCompleteHandler(event)">

    <fx:Script>

        <![CDATA[

            import mx.events.*;

            protected function view1_creationCompleteHandler(event:FlexEvent):void{

                addEventListener(Event.ADDED_TO_STAGE, _onAddedToStage)

            }

            private function _onAddedToStage(event:Event):void{

                if(stage.autoOrients)       

                    stage.addEventListener(StageOrientationEvent.ORIENTATION_CHANGE, _onStage_OrientationChange);

            }

            private function _onStage_OrientationChange(event:StageOrientationEvent):void{

                switch(event.afterOrientation){

                    case StageOrientation.DEFAULT:

                        trace('DEFAULT')

                        break;

                    case StageOrientation.ROTATED_RIGHT:

                        trace('ROTATED_RIGHT')

                        break;

                    case StageOrientation.ROTATED_LEFT:

                        trace('ROTATED_LEFT')

                        break;

                    case StageOrientation.UPSIDE_DOWN:

                        trace('UPSIDE_DOWN')

                        break;

                    case StageOrientation.UNKNOWN:

                        trace('UNKNOWN')

                        break;

                }

            }

        ]]>

    </fx:Script>   

</s:View>