@Override
            public void onAnimationUpdate(ValueAnimator animation) {
                float scale = (Float) animation.getAnimatedValue();
                if (mCurrentScale != scale) {
                    mCurrentScale = scale;
                    doSetScale();
                }
            }
@param from scale
@param to   scale
@return
app/src/main/java/home/smart/fly/animations/customview/gallery/DragViewLayout.java