Generating image based on Graph

[asanme]

Hello, I'm currently working on an app using your library. I was wondering what would be the best way to export a generated graph to a PNG or other types of images. I tried generating an image based on a Bitmap of both RecyclerView and ZoomLayout, but for some reason, the image doesn't display all the nodes, sometimes it just generates a blank image with nothing on it. I was thinking about using an external library to generate an image on the backend based on a given JSON, but I don't think it's an option given the limited resources I have.

The ideal solution would be generating the image itself on the app instead of waiting for a server to generate it. Is there any way this could be achieved?