Activity_2.java

public LatLng getLocation() {
  if (ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
    Toast.makeText(getApplicationContext(),"Request permission first!", Toast.LENGTH_LONG).show();
    return null;
  }
  LocationManager locationManager = (LocationManager) getApplicationContext().getSystemService(LOCATION_SERVICE);
  Criteria criteria = new Criteria();
  String bestProvider = locationManager.getBestProvider(criteria, false);
  Location location = locationManager.getLastKnownLocation(bestProvider);
  double lat, lon;
  try {
    lat = location.getLatitude();
    lon = location.getLongitude();
    return new LatLng(lat, lon);
  } catch (NullPointerException e) {
    e.printStackTrace();
    return null;
  }
}