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 believe they backported the code from Q to Pie as the logic for 5G was implemented at the end of last year in Q (alpha). So when using TelephonyManager.getNetworkType()

you will likely get

20 (5G)

EDIT

As per comment below: The network type will be 13 so it doesn't solve the thing.

EDIT

Try using reflection

static boolean isNRConnected(TelephonyManager telephonyManager) {
    try {
        Object obj = Class.forName(telephonyManager.getClass().getName())
                .getDeclaredMethod("getServiceState", new Class[0]).invoke(telephonyManager, new Object[0]);

        Method[] methods = Class.forName(obj.getClass().getName()).getDeclaredMethods();

        for (Method method : methods) {
            if (method.getName().equals("getNrStatus") || method.getName().equals("getNrState")) {
                method.setAccessible(true);
                return ((Integer) method.invoke(obj, new Object[0])).intValue() == 3;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return false;
}