Swipe Gestures With QNXApplicationEvents on the BlackBerry PlayBook

import mx.events.FlexEvent;
 
import qnx.events.QNXApplicationEvent;
import qnx.system.QNXApplication;
 
import views.DetailView;
 
private var startX:Number;
private var startY:Number;
private var endX:Number;
private var endY:Number;
 
protected function mobileapplication1_creationCompleteHandler(event:FlexEvent):void
{
	QNXApplication.qnxApplication.addEventListener(QNXApplicationEvent.SWIPE_START,onSwipeStart);
}
 
 
protected function onSwipeStart(event:QNXApplicationEvent):void
{
	stage.addEventListener(MouseEvent.MOUSE_DOWN,onMouseDown);
	stage.addEventListener(MouseEvent.MOUSE_UP,onMouseUp);
}
 
 
protected function onMouseDown(event:MouseEvent):void
{
	startX = event.localX;
	trace('mouse down: ' + event.localX);
}
 
protected function onMouseUp(event:MouseEvent):void
{
	endX = event.localX;
	trace('mouse up: ' + event.localX);
	trace('difference: ' + (startX - endX));
 
	var diff:Number = startX - endX;
	// if it's negative, we're moving right
	if(diff>0)
	{
		trace('popView');
		navigator.popView()
	} else {
		trace('pushView');
		navigator.pushView(DetailView);
	}
 
	stage.removeEventListener(MouseEvent.MOUSE_DOWN,onMouseDown);
	stage.removeEventListener(MouseEvent.MOUSE_UP,onMouseUp);
 
}