CODEWITHSUNDEEP
androidandroid-networkingtelephonytelecommunication
TZW
TZW

Reputation: 43

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

Android Q added a new network type, NETWORK_TYPE_NR for 5G which is not available for Android Pie. Recently released Samsung S10 fully supports 5G. It can show 5G icon on the status bar when it is on the 5G network.

Is it possible for a third-party app to know if Android Pie device on a 5G network or not?

Any help will be appreciated.

The following link is the definition for the new network type. It is not available on the Android Pie branch.

Upvotes: 4

Views: 6028

Answers (5)

Javier
Javier

Reputation: 1695

as @Hunter suggested you need to use "listen" from telephony manager but if it's api 30+ you need to have READ_PHONE permission granted and listen for LISTEN_DISPLAY_INFO_CHANGED and override onDisplayInfoChanged from PhoneStateListener

(context.getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager).listen(customPhoneStateListener,PhoneStateListener.LISTEN_DISPLAY_INFO_CHANGED)

The listener should be something like this:

private  class CustomPhoneStateListener : PhoneStateListener() {
    override fun onDisplayInfoChanged(telephonyDisplayInfo: TelephonyDisplayInfo) {
               
                super.onDisplayInfoChanged(telephonyDisplayInfo)
              
                    when (telephonyDisplayInfo.overrideNetworkType) {
                         //5G
                        OVERRIDE_NETWORK_TYPE_LTE_ADVANCED_PRO,
                        OVERRIDE_NETWORK_TYPE_NR_NSA,
                        OVERRIDE_NETWORK_TYPE_NR_NSA_MMWAVE -> setNetworkChange(NETWORK_TYPE_NR)
                        OVERRIDE_NETWORK_TYPE_LTE_CA -> {
                            setNetworkChange(19) //LTE+
                        }
                        else -> setNetworkChange(telephonyDisplayInfo.networkType)
                    }
                } else {
                    setNetworkChange(telephonyDisplayInfo.networkType)
                }
            }

   }

Link: https://developer.android.com/about/versions/11/features/5g#detection

Upvotes: 1

Hunter
Hunter

Reputation: 3362

There is an official documentation to detect 5G on Android 11. https://developer.android.com/about/versions/11/features/5g#detection

Call TelephonyManager.listen(), passing in LISTEN_DISPLAY_INFO_CHANGED, to determine if the user has a 5G network connection.

Upvotes: 2

Pavel Machala
Pavel Machala

Reputation: 84

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;
}

Upvotes: 4

Pavel Machala
Pavel Machala

Reputation: 84

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;

Upvotes: 0

Israel Flores
Israel Flores

Reputation: 1

Couldn't add this as a comment, but as @Pavel Machala said, looking at the ServiceState class in the AOSP yields the following:

/**
 * Get the NR 5G status of the mobile data network.
 * @return the NR 5G status.
 * @hide
 */
public @NRStatus int getNrStatus() {
    final NetworkRegistrationState regState = getNetworkRegistrationState(
            NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
    if (regState == null) return NetworkRegistrationState.NR_STATUS_NONE;
    return regState.getNrStatus();
}

Upvotes: 0

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