how to use onlocationchanged method in locationlistener

Question

hello i'm pretty new to android.. i'm making an application which needs exact(approx 50m accuracy acceptable) user location.. i'm using locationmanager and locationlistener.. whenever i start the application i need user location returned. problem is that onlocationchanged method in locationlistener returns the latitude longitude only when they change.. how do i get user location ?

locmgr.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, loclist_netwk); this is how i'm calling the class where i've implemented locationlistener.

`

package com.example.gpsmanager;

import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class MyLocationListener extends Activity implements LocationListener
{
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mylocation_layout);
    }
    @Override

    public void onLocationChanged(Location loc) {
        // TODO Auto-generated method stub
        loc.getLatitude();
        loc.getLongitude(); 
        String text="my current location is"+"lat: "+loc.getLatitude()+"long: "+loc.getLongitude();
        //TextView text1=(TextView) findViewById(R.id.textView1);
        //text1.setText(text+"");
        Toast.makeText(MyLocationListener.this, text, Toast.LENGTH_LONG).show();        
    }

    @Override
    public void onProviderDisabled(String arg0) {
        // TODO Auto-generated method stub
        String text="GPS Provider not availabe";
    }

    @Override
    public void onProviderEnabled(String arg0) {
        // TODO Auto-generated method stub
        String text="GPS Provider availabe";
    }

    @Override
    public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
        // TODO Auto-generated method stub

    }

}

` pllzz plzz help guys... thankss..

`getLastKnownLocation(String provider)` of `LocationManager` might help. — Glenn, Feb 10 '13 at 07:00
getLastKnownLocation gives the last known user location not current.. I guess... — tanmayub, Feb 10 '13 at 07:26
Look at this older topics: [how-do-i-get-the-current-gps-location-programmatically-in-android][1] and [what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a][2] [1]: http://stackoverflow.com/questions/1513485/how-do-i-get-the-current-gps-location-programmatically-in-android [2]: http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a/ — Palejandro, Feb 10 '13 at 08:23
not really useful... the applications stops "unfortunately".... :-( — tanmayub, Feb 10 '13 at 12:19

score 0 · Answer 1 · answered Feb 12 '13 at 05:54

      For user location you can use Reverse Geocoding 

      For it u have to send only lat,long.
Code is below:-

public String getAddress(double lat, double lng,Context mContext) {
        Geocoder geocoder = new Geocoder(mContext, Locale.getDefault());
        try {
            List<Address> addresses = geocoder.getFromLocation(lat, lng,1);
            String add="";
            for(int i=0;i<addresses.size();i++){
            Address obj = addresses.get(i);
            //String = obj.getAddressLine(i);
            add = add+obj.getAddressLine(i)+","+obj.getLocality()+","+obj.getAdminArea()+","+obj.getCountryName();

            Log.v("IGA", "\n"+"Address " + add);

            }
            return add;
            } catch (IOException e) {
            e.printStackTrace();
            Toast.makeText(mContext, e.getMessage(), Toast.LENGTH_SHORT).show();
            return null;
        }
    }

Not good..!! I need to find user GPS locations not the address... and I dont want the user location with OnLocationChanged... I want the user location as soon as the user logs into the application... — tanmayub, Feb 12 '13 at 06:11

how to use onlocationchanged method in locationlistener

1 Answers1