Adobe Air for IOS- issue in Orientaitation on ORIENTATION_CHANGING event

I'm working on Adobe Air for IOS version..

Problem is that I not getting correct value of orientation while detecting ORIENTATION_CHANGING event.But Getting correct value only after ORIENTATION_CHANGE event

Here is the code,

import flash.events. StageOrientationEvent

stage.addEventListener(StageOrientationEvent.ORIENTATION_CHANGING,onOrientationChanging);

stage.addEventListener(StageOrientationEvent.ORIENTATION_CHANGE,onOrientationChange);

function onOrientationChanging(e:StageOrientationEvent):void

{

   trace(e.afterOrientation) /// not getting correct orientation value according to how we rotate device

}

function onOrientationChange(e:StageOrientationEvent):void

{

  trace(e.afterOrientation) /// getting correct orientation value according to how we rotate device

}

How can I get correct value while changing device orientation?