setSelected animation creation

 setSelected (marker) {

   marker.isSelected = true;

   if (marker.animationGroupSelected === null) {

     var selectedDrawableResizeAnimationX = new AR.PropertyAnimation(marker.markerDrawableSelected, 'scale.x', null, 3, this.RESIZE_DURATION, new AR.EasingCurve(AR.CONST.EASING_CURVE_TYPE.EASE_OUT_ELASTIC, {
       amplitude: 2.0
     }));

     var selectedDrawableResizeAnimationY = new AR.PropertyAnimation(marker.markerDrawableSelected, 'scale.y', null, 3, this.RESIZE_DURATION, new AR.EasingCurve(AR.CONST.EASING_CURVE_TYPE.EASE_OUT_ELASTIC, {
       amplitude: 2.0
     }));

     var idleDrawableResizeAnimationX = new AR.PropertyAnimation(marker.markerDrawableIdle, 'scale.x', null, 1, this.RESIZE_DURATION, new AR.EasingCurve(AR.CONST.EASING_CURVE_TYPE.EASE_OUT_ELASTIC, {
       amplitude: 2.0
     }));

     var idleDrawableResizeAnimationY = new AR.PropertyAnimation(marker.markerDrawableIdle, 'scale.y', null, 1, this.RESIZE_DURATION, new AR.EasingCurve(AR.CONST.EASING_CURVE_TYPE.EASE_OUT_ELASTIC, {
       amplitude: 2.0
     }));

     marker.animationGroupSelected = new AR.AnimationGroup(AR.CONST.ANIMATION_GROUP_TYPE.PARALLEL, [
       selectedDrawableResizeAnimationX,
       selectedDrawableResizeAnimationY,
       idleDrawableResizeAnimationX,
       idleDrawableResizeAnimationY
     ]);
   }
   .
   .
   .
}