Have you tried Loopers for Android to update main thread from NDK BG thread? I've seen people have success with that, but I personally didn't try it. AFAIK if y

Have you tried Loopers for Android to update main thread from NDK BG thread? I've seen people have success with that, but I personally didn't try it. AFAIK if you want to use MVVM pattern, there's no option than to use JNI. We use Djinni extensively and it does what it advertises. We've to be careful with retain cycles and Djinni proxies create strong retain cycles if didn't configure correctly. I'm actively looking into libdispatch for threading. I've heard of people having success with long polling of file/socket and dispatch_source to update main threads from BG on iOS/Android. I'll probably write a blog post if I succeed (and that's a big IF).