Latitude and Longitude showing as 0 in Android

Question

  ************* TrackGPS.java *****************************  

    import android.app.AlertDialog;
    import android.app.Service;
    import android.content.Context         


        

Answer 1

Here is the background service to detect current location at time interval

import android.annotation.SuppressLint;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.os.Bundle;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.util.Log;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.PendingResult;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;

@SuppressWarnings("MissingPermission")
public class LocationBackGroundService extends Service implements LocationListener,
        GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener {

    private static final String TAG = "LocationBackGroundService";
    private static final long INTERVAL = 10;
    private static final long FASTEST_INTERVAL = 10;

    LocationRequest mLocationRequest;
    GoogleApiClient mGoogleApiClient;
    Location mCurrentLocation;
    Context mCOntext;

    public void LocationBackGroundService(Context mContext) {
        this.mCOntext = mContext;
    }

    protected void createLocationRequest() {
        mLocationRequest = new LocationRequest();
        mLocationRequest.setInterval(INTERVAL);
        mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    }

    @Override
    public void onStart(Intent intent, int startId) {
        super.onStart(intent, startId);
        mGoogleApiClient.connect();
    }

    @Override
    public void onCreate() {
        super.onCreate();

        if (!isGooglePlayServicesAvailable()) {

        }
        createLocationRequest();
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addApi(LocationServices.API)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .build();

        if (mGoogleApiClient.isConnected()) {
            startLocationUpdates();
        }

    }

    private boolean isGooglePlayServicesAvailable() {
        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
        if (ConnectionResult.SUCCESS == status) {
            return true;
        } else {
            return false;
        }
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onConnected(Bundle bundle) {
        startLocationUpdates();
    }

    @SuppressLint("LongLogTag")
    protected void startLocationUpdates() {
        PendingResult<Status> pendingResult = LocationServices.FusedLocationApi.requestLocationUpdates(
                mGoogleApiClient, mLocationRequest, this);

        Log.d(TAG, "Location update started ..............: ");
    }

    @Override
    public void onConnectionSuspended(int i) {

        Toast.makeText(this,"OnConnection Suspended",Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {
        Toast.makeText(this,"OnConnection Failed",Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onLocationChanged(Location location) {

        if (null != mCurrentLocation) {
            mCurrentLocation = location;
            String lat = String.valueOf(mCurrentLocation.getLatitude());
            String lng = String.valueOf(mCurrentLocation.getLongitude());

            ConstantFunction.saveStatus(this, ConstantVariables.CURRENT_LATITUDE, lat);
            ConstantFunction.saveStatus(this, ConstantVariables.CURRENT_LONGTITUDE, lng);
            System.out.println("First Condition Hit");
            System.out.println("Lat::-- " + lat + "\n" + "LONG::--" + lng);
        }

        System.out.println("Lat::-- " + location.getLatitude() + "\n" + "LONG::--" + location.getLongitude());
    }
}

Put this code in seperate java file named LocationBackGroundService.java and call it in your MainActivity like this startService(new Intent(this, LocationBackGroundService.class)); and don't forget to add it in menifest like this <service android:name="LocationBackGroundService"></service>

Answer 2

Please manage required permission for marshmallow.

First you add this permission in manifest file

 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

After in your activity First declare two variable like this,

 private static final int REQUEST_CODE_PERMISSION = 1;
 String mPermission = Manifest.permission.ACCESS_FINE_LOCATION;

After in onCreate method

 if(Build.VERSION.SDK_INT>= 23) {

        if (checkSelfPermission(mPermission) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(MainActivity.this,
                    new String[]{mPermission,
                    },
                    REQUEST_CODE_PERMISSION);
            return;
        }

        else
        {
            *here manage your code if permission already access
        }
    }