Animate ImageButton back to initial position

Question

I'm new to animations in android. So, I have an ImageButton which I'm animating like this:

ObjectAnimator Y = ObjectAnimator.ofFloat(img, "y", 300f);
Y.setDuration(1000);

So, my ImageButton moves downward by this animation. How do I move it upwards(to its initial position) I tried -y as reverse of y but it's wrong syntax. So What's right syntax?

Answer 1

ObjectAnimator Y = ObjectAnimator.ofFloat(img, "y", -300f);

There is no property named -y. y means the top-left position (x,y) of the view.