public RenderMode getRenderMode() {
    return lottieDrawable.getRenderMode();
  }
Returns the actual render mode being used. It will always be {@link RenderMode#HARDWARE} or {@link RenderMode#SOFTWARE}.
When the render mode is set to AUTOMATIC, the value will be derived from {@link RenderMode#useSoftwareRendering(int, boolean, int)}.
lottie/src/main/java/com/airbnb/lottie/LottieAnimationView.java