navigator.pushView(orderStepTwo, orderObj);返回下一屏幕
navigator.popView(); 返回上一屏幕
stage.setAspectRatio(StageAspectRatio.PORTRAIT); 屏幕纵向
stage.setAspectRatio(StageAspectRatio.LANDSCAPE) ; 屏幕横向
navigator.pushView(orderStepTwo, orderObj);返回下一屏幕
navigator.popView(); 返回上一屏幕
stage.setAspectRatio(StageAspectRatio.PORTRAIT); 屏幕纵向
stage.setAspectRatio(StageAspectRatio.LANDSCAPE) ; 屏幕横向