How to get neighbor cell info from getAllCellInfo?

Question

this is the phone state listener i'm using to detect the changes

public PhoneStateListener mPhoneStateListener = new PhoneStateListener() {


        @Override
        public void onSignalStrengthsChanged(SignalStrength signalStrength) {
            Log.d("SIGNAL ", "  " + signalStrength.toString());
            TelephonyManager tm = (TelephonyManager) mContext.getSystemService(mContext.TELEPHONY_SERVICE);
            List<CellInfo> cellInfos = tm.getAllCellInfo();
            for (int i=0 ;i<cellInfos.size() ;i++)
            {
                Log.d("test ",cellInfos.get(0).toString() );
            }
        }
    };

The problem is currently i'm getting all cell information as below:

result - > logs CellInfoLte:{mRegistered=YES mTimeStampType=oem_ril mTimeStamp=192908703241551ns CellIdentityLte:{ mMcc=405 mMnc=869 mCi=2971664 mPci=123 mTac=56} CellSignalStrengthLte: ss=27 rsrp=-90 rsrq=-10 rssnr=2147483647 cqi=2147483647 ta=2147483647}

How can i parse this to get CellInfoLte, CellIdentityLte and CellSignalStrengthLte from the above result

Answer 1

if you're still struggling with the problem, this is the method I'm using:

//permission check
    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
        ActivityCompat.requestPermissions((Activity)this,new String[]{Manifest.permission.ACCESS_COARSE_LOCATION},1);

    String list = "";  //I'm just adding everything to a string to display, but you can do whatever

    //get cell info
    TelephonyManager tel = (TelephonyManager) this.getSystemService(Context.TELEPHONY_SERVICE);
    List<CellInfo> infos = tel.getAllCellInfo();
    for (int i = 0; i<infos.size(); ++i) 
        {
            try {
                CellInfo info = infos.get(i);
                if (info instanceof CellInfoGsm) //if GSM connection
                {
                    list += "Site_"+i + "\r\n";
                    list += "Registered: " + info.isRegistered() + "\r\n";
                    CellSignalStrengthGsm gsm = ((CellInfoGsm) info).getCellSignalStrength();
                    CellIdentityGsm identityGsm = ((CellInfoGsm) info).getCellIdentity();
                    list += "cellID: "+ identityGsm.getCid() + "\r\n";
                    list += "dBm: " + gsm.getDbm() + "\r\n\r\n";
                    //call whatever you want from gsm / identitydGsm
                }
                else if (info instanceof CellInfoLte)  //if LTE connection
                {
                    list += "Site_"+i + "\r\n";
                    list += "Registered: " + info.isRegistered() + "\r\n";
                    CellSignalStrengthLte lte = ((CellInfoLte) info).getCellSignalStrength();
                    CellIdentityLte identityLte = ((CellInfoLte) info).getCellIdentity();
                    //call whatever you want from lte / identityLte
                }
                else if (info instanceof CellInfoWcdma)  //if wcdma connection
                {
                    CellSignalStrengthWcdma wcdmaS = ((CellInfoWcdma) info).getCellSignalStrength();
                    CellIdentityWcdma wcdmaid = ((CellInfoWcdma)info).getCellIdentity();
                    list += "Site_"+i + "\r\n";
                    list += "Registered: " + info.isRegistered() + "\r\n";
                    //call whatever you want from wcdmaS / wcdmaid

                }

            } catch (Exception ex) {
                Log.i("neighboring error 2: " ,ex.getMessage());
            }
        }
    Log.i("Info display", list);  //display everything.

And while we're busy, just a heads up, the LTE parsing is all screwy (you will see if you do getCi(), getTac() etc. ), so I wrote my own parsing class, and posted my answer here.

Hede of warning though, when you start to see that your neighboring cell info is totally wrong... (the problem that I'm currently at), this dilemma is also posted here. Good luck, and let me know if this part is not a issue for you

Answer 2

Try this (according to cocorico):

String ssignal = signalStrength.toString();
String[] parts = ssignal.split(" ");

Where signalStrength.toString() comes from signalStrength.

The parts[] array will then contain these elements:

part[0] = "Signalstrength:"  _ignore this, it's just the title_
parts[1] = GsmSignalStrength
parts[2] = GsmBitErrorRate
parts[3] = CdmaDbm
parts[4] = CdmaEcio
parts[5] = EvdoDbm
parts[6] = EvdoEcio
parts[7] = EvdoSnr
parts[8] = LteSignalStrength
parts[9] = LteRsrp
parts[10] = LteRsrq
parts[11] = LteRssnr
parts[12] = LteCqi
parts[13] = gsm|lte|cdma
parts[14] = _not really sure what this number is_

So, LTEdBm is :

TelephonyManager tm = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
int dbm = 0;

if ( tm.getNetworkType() == TelephonyManager.NETWORK_TYPE_LTE){
    // For Lte SignalStrength: dbm = ASU - 140.
    dbm = Integer.parseInt(parts[8])-140;
} else {
    // For GSM Signal Strength: dbm =  (2*ASU)-113.
    if (signalStrength.getGsmSignalStrength() != 99) {
        int intdbm = -113 + 2
                        * signalStrength.getGsmSignalStrength();
        dbm = Integer.toString(intdbm);
    }
}