How to detect Samsung S10 5G is running on 5G network?

Question

Android Q added a new network type, NETWORK_TYPE_NR, for 5G, it is not available for Android Pie. Yet the just released Samsung S10 5G has fully supported 5G function, it ca

Answer 1

I have extracted the ServiceState.java from SM-G977N firmware and it confirms that they have added ServiceState.getNrStatus()

5G(NR) is active is if NetworkRegistrationState.NR_STATUS_CONNECTED = 3;