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inside custom component

Adobe AIR Development

Posts: 265
Registered: ‎01-02-2011
My Device: Z30, PlayBook
My Carrier: AT&T

mxml and stage orientation

If you have been struggling to determine the stage orientation when using the mxml scripting on your application, I stumbled across the solution today.


In your initialization function, add a even listener to the systemManager.stage (not stage or this.stage).


private function init():void {

systemManager.stage.addEventListener(StageOrientationEvent.ORIENTATION_CHANGE, onOrientationChanging );


 And then do your check for orientation change

private function onOrientationChanging( event:StageOrientationEvent ):void {
                if(event.afterOrientation == StageOrientation.UPSIDE_DOWN || event.afterOrientation == StageOrientation.DEFAULT ) {
                   // set landscape stage                  
                } else {
                   // set portrait stage


This has been driving me nuts for days.  The accelerometer didn't work the way it should, but this does.  And you don't get the null object instance issue.



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