docs: private void animateOffset(final int offset) {
          if (mTranslationAnimator == null) {
              mTranslationAnimator = ViewCompat.animate(this);
              mTranslationAnimator.setDuration(mRippleAnimationDuration);
              mTranslationAnimator.setInterpolator(INTERPOLATOR);
          } else {
              mTranslationAnimator.cancel();
          }
          mTranslationAnimator.translationY(offset).start();
      }