This android tutorial will help you to get current device location based on GPS service. GPS is a technology except device internet and WiFi that provide device current location. GPS location provider will give our location accurately. To use of GPS provider follow these steps.

Step-1- Create XML file

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".AndroidLocationActivity" >

    <Button
        android:id="@+id/btnGPSShowLocation"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/btnNWShowLocation"
        android:layout_alignParentTop="true"
        android:layout_marginTop="36dp"
        android:minWidth="100dp"
        android:text="Show Location\n(GPS)" />



</RelativeLayout>

Step-2- Create Activity class

public class LocationActivity extends Activity {

    Button btnGPSShowLocation;
    Button btnNWShowLocation;

    AppLocationService appLocationService;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        appLocationService = new AppLocationService(
                AndroidLocationActivity.this);

        btnGPSShowLocation = (Button) findViewById(R.id.btnGPSShowLocation);
        btnGPSShowLocation.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {

                Location gpsLocation = appLocationService
                        .getLocation(LocationManager.GPS_PROVIDER);

                if (gpsLocation != null) {
                    double latitude = gpsLocation.getLatitude();
                    double longitude = gpsLocation.getLongitude();
                    getCurrentAddress(latitude,longitude);
                    Toast.makeText(
                            getApplicationContext(),
                            "Mobile Location (GPS): \nLatitude: " + latitude
                                    + "\nLongitude: " + longitude,
                            Toast.LENGTH_LONG).show();
                } else {
                    showSettingsAlert("GPS");
                }

            }
        });


    }

    protected void getCurrentAddress(double latitude, double longitude) {
        Log.d("callingggggmethod","..............");
        Geocoder geocoder;
        List<Address> addresses;
        geocoder = new Geocoder(this, Locale.getDefault());

        try {
            addresses = geocoder.getFromLocation(latitude, longitude, 1);

        String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
        String city = addresses.get(0).getLocality();
        String state = addresses.get(0).getAdminArea();
        String country = addresses.get(0).getCountryName();
        String postalCode = addresses.get(0).getPostalCode();
        String knownName = addresses.get(0).getFeatureName(); // Only if available else return NULL

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } // Here 1 represent max location result to returned, by documents it recommended 1 to 5


    }

}

Step-3- Create location service class

public class AppLocationService extends Service implements LocationListener {

    protected LocationManager locationManager;
    Location location;

    private static final long MIN_DISTANCE_FOR_UPDATE = 10;
    private static final long MIN_TIME_FOR_UPDATE = 1000 * 60 * 2;

    public AppLocationService(Context context) {
        locationManager = (LocationManager) context
                .getSystemService(LOCATION_SERVICE);
    }

    public Location getLocation(String provider) {
        if (locationManager.isProviderEnabled(provider)) {
            locationManager.requestLocationUpdates(provider,
                    MIN_TIME_FOR_UPDATE, MIN_DISTANCE_FOR_UPDATE, this);
            if (locationManager != null) {
                location = locationManager.getLastKnownLocation(provider);
                return location;
            }
        }
        return null;
    }

    @Override
    public void onLocationChanged(Location location) {
    }

    @Override
    public void onProviderDisabled(String provider) {
    }

    @Override
    public void onProviderEnabled(String provider) {
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
    }

    @Override
    public IBinder onBind(Intent arg0) {
        return null;
    }

}