Question: Support for "Purely" Native Activity

[Phil1216]

I'm trying to build an ArCore application using a "purely" native activity via android_native_app_glue.h, which does everything in a separate thread. I'm having problems that I believe are similar to #1199. At the end of that unresolved issue the author makes the following statement:

"In the sample ARCore example, the native interface from ARCore is used with from Java with JNI interface which works. Is ARCore meant to be used in a native application?"

I was wondering if there is an answer to that question so I could know whether I can continue using android_native_app_glue or if I need to gut my code to make it work with JNI callbacks.