Locating Latitude and longitude using cell tower. android application

WoheNi · Oct 19, 2015

i'm currently using eclipse for android programming. to track my location using cell id..

Code:

package com.example.nypindoormap;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.GoogleMap;

import android.app.Dialog;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.telephony.TelephonyManager;
import android.telephony.gsm.GsmCellLocation;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;


public class MainActivity extends FragmentActivity {
	
	private static final int GPS_ERRORDIALOG_REQUEST = 9001;
	GoogleMap mMap; 
	
	private static final String TAG = "D";
	//** declare Variables **
	
	// Create the authentication object
	// myAndroidContext must be a Context instance
	
	
	
	double wifiAcc;
	double gpsAcc;
	double nypAcc;
	double gpsLat;
	double gpsLng;
	double wifiLat;
	double wifiLng;
	double nypLat;
	double nypLng;
	double ActualDisplayLat;
	double ActualDisplayLng;
	double wifiDistanceActual;
	double gpsDistanceActual;
	double nypDistanceActual;
	double wifiDistanceGps;
	double gpsalt;
	double cellLat;
	double cellLng;
	double cellAcc;
	double cellDistanceActual;
	double cellalt;
	
	LocationManager locationManager;
	LocationListener gpsLocationListener;
	LocationListener wifiLocationListener;
	LocationListener cellLocationListener;
	LocationListener locationListener;

	
	EditText ActualDisplay;
	EditText GPS;
	EditText Wifi;
	EditText NYP;
	EditText cell;
	EditText level;
	Button map;
	Button mapBtn;
	
	
	String networkOperator;
	Boolean result;
	
	// variable to determine whether provider are connected.
	boolean gpsProvider = false;
	boolean wifiProvider = false;
	boolean cellProvider = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main);
        
           //display view
        
    //** Find view of EditText *//*
        
        // for gps
        GPS = (EditText) findViewById(R.id.GPS);
    
     	// for wifi
        Wifi = (EditText) findViewById(R.id.Wifi);
       	
     	// for nypculated
        NYP = (EditText) findViewById(R.id.NYP);
     
        cell = (EditText) findViewById(R.id.cell);
        
     	// for location
        //ActualDisplay = (EditText) findViewById(R.id.ActualDisplay);
     	
     	// set Hardcoded actual location to text
     	//ActualDisplayLat = 1.379524;
     	//ActualDisplayLng = 103.848843;
     	//String actualText = String.format("Desc:\t Block S level 4 \nLat:\t %f\nLong:\t %f", ActualDisplayLat, ActualDisplayLng);
     	//ActualDisplay.setText(actualText);
     	
     
     	
 	// ** Find view of button **
     	
     	// for check mapBTN
     	map = (Button) findViewById(R.id.map);
     	
     	mapBtn = (Button) findViewById(R.id.map);
     	
     	map.setOnClickListener(new OnClickListener() {
			
     		@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				Intent intent = new Intent(MainActivity.this, MapActivity.class);
				startActivity(intent);
				
				
				
				
				
				
			}
		});
     	
     	mapBtn.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				Intent intent = new Intent(MainActivity.this, MapActivity.class);
				startActivity(intent);
				
			}
		});
     	
     
    
     	
     	// Acquire a reference to the system Location Manager for GPS and WIFI
     	LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
 		
 		
 	

     	
     	locationListener = new LocationListener() {
        
     		@Override
			public void onLocationChanged(Location location) {
     		// called when the listener is notified with a location update from the GPS
	    	// nypled when a new location is found by the network location provider.
  			// Generate location based on provider
			     if(location.getProvider().contains("gps")) {
		 		     gpsNewLocation(location);
			     }
			     if(location.getProvider().contains("network")) {
		 		     wifiNewLocation(location);
		
			     }
			     if(location.getProvider().contains("cell")) {
		 		     cellNewLocation(location);
		
			     }
			     NYPNewLocation(gpsLat,gpsLng,gpsAcc,wifiLat,wifiLng,wifiAcc);
 		    }

 		    @Override
			public void onStatusChanged(String provider, int status, Bundle extras) {}
 		    
 		    // called when the status of the GPS provider changes

 		    @Override
			public void onProviderEnabled(String provider) {}
 		    
 		    // called when the GPS provider is turned on (user turning on the GPS on the phone)

 		    @Override
			public void onProviderDisabled(String provider) {}
 		    // called when the GPS provider is turned off (user turning off the GPS on the phone)

 		    
 		  };
 		  
 		// Request Location
 		 locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
  		locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
  		
	    	
  		
  		setupMessageButton();
    }
    
        private void setupMessageButton() {
        	//1. get a reference to the button
        	Button messageButton = (Button) findViewById(R.id.map);
        	
        	
        	//2. Set the click listener to run my code.
        	View.OnClickListener myListener = new View.OnClickListener() {
        		
        		private Location location;

				@Override
        		public void onClick(View v) {
        			
        			//creating a new intent
        			//Intent myIntent = new Intent(getApplicationContext(), MapActivity.class);
        			//startActivity(myIntent);
					Intent intent= new Intent(MainActivity.this, MapActivity.class);
			     	Bundle o = new Bundle();
			     	o.putDouble("key",gpsalt);
			     	intent.putExtras(o);
			     	startActivity(intent);
					
				
        			// TODO Auto-generated method stub
        			Log.i(TAG, "You clicked the button!");
        			Toast.makeText(MainActivity.this,
        					"You clicked map!",
        					Toast.LENGTH_LONG)
        			.show();
        			
        		
        		}
        	};
        	messageButton.setOnClickListener(myListener);
        }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
        
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatinyply handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
    
public void startMap(View view) {
	
	
	
    	
    	startActivity(new Intent("com.example.MapActivity"));
    	
    	final Button button = (Button) findViewById(R.id.map);
        button.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // Perform action on click   

                Intent activityChangeIntent = new Intent(MainActivity.this, MapActivity.class);

                // currentContext.startActivity(activityChangeIntent);

                MainActivity.this.startActivity(activityChangeIntent);
            }
        });
    }



	
    
    public void gpsNewLocation(Location location) {
 		// TODO Auto-generated method stub
     	Log.d(TAG, "onLocationChanged with location " + location.toString());
     	
     	
     	gpsalt=location.getAltitude();
     	gpsLat = location.getLatitude();
      	gpsLng = location.getLongitude();
      	gpsAcc = location.getAccuracy();
      	
      	// nypculate distance from actual
      	double gpsActualLatPow = Math.pow((gpsLat - ActualDisplayLat), 2);
      	double gpsActualLngPow = Math.pow((gpsLng - ActualDisplayLng), 2);
      	double combineGpsPow = gpsActualLatPow + gpsActualLngPow;
      	gpsDistanceActual =  Math.sqrt(combineGpsPow) * 1.1 * Math.pow(10,5);
      	
     	// if gps is provider
     	String gpsText = String.format("Lat:\t %f\nLong:\t %f\nAlt:\t %f\nBearing:\t %f \nAccuracy:\t %f\nDistanceFromActual:\t %fm", location.getLatitude(), location.getLongitude(), location.getAltitude(), location.getBearing(), location.getAccuracy(),gpsDistanceActual);
     	
     	// Set Text
     	GPS.setText(gpsText);
 	}
    
    protected void wifiNewLocation(Location location) {
		// TODO Auto-generated method stub
    	Log.d(TAG, "onLocationChanged with location " + location.toString());
    	
    	wifiLat = location.getLatitude();
     	wifiLng = location.getLongitude();
     	wifiAcc = location.getAccuracy();
     	
     	// nypculate distance from actual
     	double wifiActualLatPow = Math.pow((wifiLat - ActualDisplayLat), 2);
     	double wifiActualLngPow = Math.pow((wifiLng - ActualDisplayLng), 2);
     	double combineWifiPow = wifiActualLatPow + wifiActualLngPow;
     	wifiDistanceActual =  Math.sqrt(combineWifiPow) * 1.1 * Math.pow(10,5);
     	
     	
     	// set string
    	String wifiText = String.format("Lat:\t %f\nLong:\t %f\nAccuracy:\t %f\nDistanceFromActual:\t %fm", location.getLatitude(), location.getLongitude(), /*location.getAltitude()*/location.getAccuracy(), wifiDistanceActual); 	
    	// Getting provider
    	String provider = location.getProvider();
    	
    	// Set Text
    	Wifi.setText(wifiText);
     	
	
    }
    protected void cellNewLocation(Location location) {
		// TODO Auto-generated method stub
    	Log.d(TAG, "onLocationChanged with location " + location.toString());
    	 TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
    	 GsmCellLocation cellLocation = (GsmCellLocation)telephonyManager.getCellLocation();
    	
    	cellLat = location.getLatitude();
     	cellLng = location.getLongitude();
     	cellAcc = location.getAccuracy();
     	
     	
     	// nypculate distance from actual
     	double cellActualLatPow = Math.pow((cellLat - ActualDisplayLat), 2);
     	double cellActualLngPow = Math.pow((cellLng - ActualDisplayLng), 2);
     	double combinecellPow = cellActualLatPow + cellActualLngPow;
     	cellDistanceActual =  Math.sqrt(combinecellPow) * 1.1 * Math.pow(10,5);
     	
     	
     	// set string
    	String cellText = String.format("Lat:\t %f\nLong:\t %f\nAccuracy:\t %f\nDistanceFromActual:\t %fm", location.getLatitude(), location.getLongitude(), /*location.getAltitude()*/location.getAccuracy(), wifiDistanceActual); 	
    	// Getting provider
     

 	String provider = location.getProvider();
 
    	// Set Text
    	cell.setText(cellText);
    }
    protected void NYPNewLocation(double gpsLat, double gpsLng, double gpsAcc,
			double wifiLat, double wifiLng, double wifiAcc) {
		// TODO Auto-generated method stub
		Log.d(TAG, "onLocationChanged with nypculation ");
		
		/** apply formula */
		
		// nypculate distance of gps from Wifi
     	double gpsWifiLatPow = Math.pow((gpsLat - wifiLat), 2);
     	double gpsWifiLngPow = Math.pow((gpsLng - wifiLng), 2);
     	double combineGpsWifiPow = gpsWifiLatPow + gpsWifiLngPow;
     	wifiDistanceGps =  Math.sqrt(combineGpsWifiPow) * 1.1 * Math.pow(10,5);
     	
     	// nypculation of accuracy of nypculated position
     	nypAcc = Math.sqrt( 1/( (1/(Math.pow(gpsAcc, 2)) + (1/(Math.pow(gpsAcc, 2))) ) ) );
		
		//if 2 * nypAcc > wifiDistanceGps
     	if((2 * nypAcc) > wifiDistanceGps)
     	{
     	// if gpsAcc > wifiAcc
			if(gpsAcc > wifiAcc)
			{
				nypLat = ( ( ( 1/(Math.pow(gpsAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (gpsLat) ) + ( ( ( 1/(Math.pow(wifiAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (wifiLat) );
	     		nypLng = ( ( ( 1/(Math.pow(gpsAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (gpsLng) ) + ( ( ( 1/(Math.pow(wifiAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (wifiLng) );
			}
			else
			{
				nypLat = ( ( ( 1/(Math.pow(wifiAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (gpsLat) ) + ( ( ( 1/(Math.pow(gpsAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (wifiLat) );
	     		nypLng = ( ( ( 1/(Math.pow(wifiAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (gpsLng) ) + ( ( ( 1/(Math.pow(gpsAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (wifiLng) );
			}
     	}
		
		// else
     	else
     	{
     		nypLat = ( ( ( 1/(Math.pow(gpsAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (gpsLat) ) + ( ( ( 1/(Math.pow(wifiAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (wifiLat) );
     		nypLng = ( ( ( 1/(Math.pow(gpsAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (gpsLng) ) + ( ( ( 1/(Math.pow(wifiAcc, 2)) ) / ( ( 1/(Math.pow(gpsAcc, 2))) + ( 1/(Math.pow(wifiAcc, 2))) ) ) * (wifiLng) );
     	}
		
		
		// nypculate distance from actual
     	double nypActualLatPow = Math.pow((nypLat - ActualDisplayLat), 2);
     	double nypActualLngPow = Math.pow((nypLng - ActualDisplayLng), 2);
     	double combinenypPow = nypActualLatPow + nypActualLngPow;
     	nypDistanceActual =  Math.sqrt(combinenypPow) * 1.1 * Math.pow(10,5);
     	
		String nypText = String.format("Lat:\t %f\nLong:\t %f\nAccuracy:\t %f\nDistanceFromActual:\t %fm", nypLat, nypLng,nypAcc,nypDistanceActual);
		// set Text
		NYP.setText(nypText);
		
		
    }
    


    
    public boolean servicesOK(){
    	int isAvailable = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
    	
    	if (isAvailable == ConnectionResult.SUCCESS) {
    		return true;
    	}
    	else if (GooglePlayServicesUtil.isUserRecoverableError(isAvailable)){
    		Dialog dialog = GooglePlayServicesUtil.getErrorDialog(isAvailable, this, GPS_ERRORDIALOG_REQUEST);
    		dialog.show();
    		}
    	else{
    		Toast.makeText(this,"Can't connect to Google Play services",Toast.LENGTH_SHORT).show();
    }
    	return false;}
    
    
}

why is my cell id not working? :s11:

davidktw · Oct 20, 2015

You know. You might want to do yourself a favour when asking for solution. Posting the whole source code is not the way to learn where you are doing wrong.

Do your due diligence, provide error logs and do your own deciphering of where you think you are having problems and what you think might be the solution, so that others can guide you if they know.

You seriously think we are in any way oblige to help you solve problem in this manner ? Help others to help yourself.

ykgoh · Oct 20, 2015

So which line has problem? :s11:

I don't think anyone would bother to download the whole page of codes and test run in their debugger.

Are you running/debugging this in the Android simulator? Maybe it has certain limitations as it is not a real GPS like on your mobile phone? I vaguely remember it used to be hard coded text file for sample data points.

Is your Location mode enabled and set correctly? If you're using cell, maybe u need High Accuracy or Battery saving mode? In case it is Device only mode?

WoheNi · Oct 20, 2015

ykgoh said:
So which line has problem? I don't think anyone would bother to download the whole page of codes and test run in their debugger.

Are you running/debugging this in the Android simulator? Maybe it has certain limitations as it is not a real GPS like on your mobile phone? I vaguely remember it used to be hard coded text file for sample data points.

Is your Location mode enabled and set correctly? If you're using cell, maybe u need High Accuracy or Battery saving mode? In case it is Device only mode?

im running this with a real phone. im sorry i post the whole codes. this is the code im trying to fix

Code:

protected void cellNewLocation(Location location) {
		// TODO Auto-generated method stub
    	Log.d(TAG, "onLocationChanged with location " + location.toString());
    	 TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
    	 GsmCellLocation cellLocation = (GsmCellLocation)telephonyManager.getCellLocation();
    	
    	cellLat = location.getLatitude();
     	cellLng = location.getLongitude();
     	cellAcc = location.getAccuracy();
     	
     	

         	// set string
    	String cellText = String.format("Lat:\t %f\nLong:\t %f\nAccuracy:\t %f\nDistanceFromActual:\t %fm", location.getLatitude(), location.getLongitude(), /*location.getAltitude()*/location.getAccuracy(), wifiDistanceActual); 	
    	// Getting provider
     

 	String provider = location.getProvider();
 
    	// Set Text
    	cell.setText(cellText);

davidktw · Oct 20, 2015

Can you confirm your location listener callback is invoked? Don't go into the cellnewlocation first

squeeish · Nov 7, 2015

Manifest permissions?

Locating Latitude and longitude using cell tower. android application

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WoheNi

Member

davidktw

Arch-Supremacy Member

ykgoh

Master Member

WoheNi

Member

davidktw

Arch-Supremacy Member

squeeish

Supremacy Member