permission

   if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
                && checkSelfPermission(android.Manifest.permission.ACCESS_COARSE_LOCATION)
                != PackageManager.PERMISSION_GRANTED
                && checkSelfPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED) {
            requestPermissions(
                    new String[]{android.Manifest.permission.ACCESS_COARSE_LOCATION,
                            android.Manifest.permission.ACCESS_FINE_LOCATION},
                    Constant.PERMISSIONS_REQUEST_GPS);

        }
        else {