Android : PopupWindow update() animation

Is there a way to animate PopupWindow wnen issuing update() method? I'm changing my popup's position there, so it would be nice if I could smoothly slide the popup to its destination instead of just "jumping". I know I can easily animate the PopupWindow's entering and exiting via adding these items to its style:

<style name="MyPopup">
    <item name="@android:windowEnterAnimation">@anim/slide_in_right</item>
    <item name="@android:windowExitAnimation">@anim/slide_out_to_right</item>
</style>

But I'm interested in its position updating animation.