Как сделать плавное затухание Rotate?

RotateAnimation rotate = new RotateAnimation(0, 540,
                Animation.RELATIVE_TO_SELF, 0.5f,
                Animation.RELATIVE_TO_SELF, 0.5f);
        rotate.setDuration(1000);
        rotate.setFillAfter(true);
        rotate.setInterpolator(new LinearInterpolator());
        imageDrum.startAnimation(rotate);