@Override
    public boolean isValueChanged(float progress) {
      if (currentKeyframe.containsProgress(progress)) {
        return !currentKeyframe.isStatic();
      }
      currentKeyframe = findKeyframe(progress);
      return true;
    }
Similar to {@link #getValue(Keyframe, float)} but used when an animation has separate interpolators for the X and Y axis.
lottie/src/main/java/com/airbnb/lottie/animation/keyframe/BaseKeyframeAnimation.java