Android：如何从最后一个位置开始制作动画？

I have an ImageButton that should change its position depending on the accelerator angle. Unfourtunately, i don't get how to start animation from the last position... Please, help me to understand. I guess, the problem is with RELATIVE_TO_SELF, ABSOLUTE things. Now animation starts in the same place. Thank You in advance :)I have an ImageButton that should change its po