Show me the code! – By Davanum Srinivas

November 29, 2007

Android – Access Cell Phone details (Cell-Id, LAC, Signal Strength)

Filed under: Uncategorized — Davanum Srinivas @ 9:57 am

Here is the screen shot

001

Next Step(s)!


Need to figure out how to use cell-id/lac information to get a lat/long for the phone location! Please drop me a note or add comments here if you have an idea on how to do it. Thanks.

Source

package org.apache;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.telephony.PhoneStateIntentReceiver;
import android.telephony.ServiceState;
import android.util.Log;
import android.widget.EditText;

public class LocateMe extends Activity {
    private PhoneStateIntentReceiver mPhoneStateReceiver;
    private EditText mEditLac;
    private EditText mEditCid;
    private EditText mEditSignal;

    private static final int MY_NOTIFICATION_ID = 0x100;

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.main);

        mPhoneStateReceiver = new PhoneStateIntentReceiver(this, new ServiceStateHandler());
        mPhoneStateReceiver.notifyServiceState(MY_NOTIFICATION_ID);
        mPhoneStateReceiver.notifyPhoneCallState(MY_NOTIFICATION_ID);
        mPhoneStateReceiver.notifySignalStrength(MY_NOTIFICATION_ID);
        mPhoneStateReceiver.registerIntent();

        mEditLac = (EditText) findViewById(R.id.lac);
        mEditCid = (EditText) findViewById(R.id.cell_id);
        mEditSignal = (EditText) findViewById(R.id.signal_strength);
    }

    private class ServiceStateHandler extends Handler {
        public void handleMessage(Message msg) {
            Log.i("LocateMe", "In handleMessage : " + msg.what);
            switch (msg.what) {
                case MY_NOTIFICATION_ID:
                    ServiceState state = mPhoneStateReceiver.getServiceState();
                    int cid = state.getCid();
                    int lac = state.getLac();
                    int signal = mPhoneStateReceiver.getSignalStrength();
                    mEditCid.setText("" + cid);
                    mEditLac.setText("" + lac);
                    mEditSignal.setText("" + signal);
                    break;
            }
        }
    }
}

Download the sources and Application – LocateMe.zip

UPDATE: Nov 30, 12:37 EST – Version 2.0 is here

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16 Comments »

  1. Have a look at this thread here:

    http://discussion.forum.nokia.com/forum/showthread.php?s=&threadid=19693

    It’s a Symbian forum, but it goes into the whole topic of CellID -> Lat/Lng conversion

    Hope it helps…. I’m not sure it will (as it’s a bit long and I’m only on the 1st page so far)

    Comment by bloid — November 29, 2007 @ 10:06 am

  2. This may be of use as well… It seems to use the yahoo flickr location service:

    http://www.openwiki.com/ow.asp?CellIDToLocation

    Comment by bloid — November 29, 2007 @ 10:14 am

  3. Here is what you are looking for:

    http://www.gnucitizen.org/blog/geo-tracking-mobile-phones

    Note that you also need the MCC and MNC.

    Comment by Nicolas — November 30, 2007 @ 7:52 am

  4. [...] Android – Poor man’s “My Location” (Show current cell location) Many Thanks to Nicholas and bloid for comments on my previous blog post. Here’s an update with some commentary [...]

    Pingback by Android - Poor man’s “My Location” (Show current cell location) « Show me the code! — November 30, 2007 @ 12:28 pm

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    Comment by Andres Rormoser — February 1, 2008 @ 3:44 pm

  6. hi
    Im not expert in Java and i want to use this code to get cellid (bts gprs) by any phone.
    i think that my probleme is not great :
    when i write this code an error like : android.app.Activity dont existe
    i want just to know integrate this api to my aps
    sorry for english errors

    Comment by tunisianway@hotmail.fr — March 15, 2008 @ 6:31 am

  7. Would love to do this sort of thing but havnt a clue where to start. I’m glad the integration would be universal with all phone operating systems, that would be key.

    Good luck with all future developments, bookmarked the site :)

    Comment by Andy James — April 12, 2008 @ 7:32 pm

  8. You plan too much. Cut down to size and concentrate on it.

    Comment by loty — October 10, 2008 @ 1:26 pm

  9. in the new Android SDK “beta release”

    the method
    int signal = mPhoneStateReceiver.getSignalStrength();

    don’t exists , it there is new way of get the signal strength?

    Comment by ahmdalitaha — November 7, 2008 @ 11:10 am

  10. i am trying to find city location using android api for my app, i tried to download the LocateMe.Zip file, but link is not working, please give me the correct link, would be really helpful

    Comment by android_dev — November 20, 2009 @ 2:00 pm

  11. Why doesn’t it recognize the import android.telephony.PhoneStateIntentReceiver;

    Does it require something. I’m using android 2.1 if it helps

    Comment by wh — May 4, 2010 @ 2:36 pm

  12. Thanks for the great article, I looked here often:)

    Comment by Katal Og — December 26, 2010 @ 4:13 am

  13. Also what?

    Comment by LamuzNick — October 10, 2011 @ 2:03 pm

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