/**
     * Starting location updates
     * Check whether location settings are satisfied and then
     * location updates will be requested
     */
    private void startLocationUpdates() {
        settingsClient
                .checkLocationSettings(locationSettingsRequest)
                .addOnSuccessListener(this, new OnSuccessListener<LocationSettingsResponse>() {
                    @SuppressLint("MissingPermission")
                    @Override
                    public void onSuccess(LocationSettingsResponse locationSettingsResponse) {
                        Log.i(TAG, "All location settings are satisfied.");

                        //noinspection MissingPermission
                        fusedLocationClient.requestLocationUpdates(locationRequest, locationCallback, Looper.myLooper());

                        onLocationChange();
                    }
                })
                .addOnFailureListener(this, new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {
                        int statusCode = ((ApiException) e).getStatusCode();
                        switch (statusCode) {
                            case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                                Log.i(TAG, "Location settings are not satisfied. Attempting to upgrade " +
                                        "location settings ");
                                if (mRequestingLocationUpdates) {
                                    try {
                                        // Show the dialog by calling startResolutionForResult(), and check the
                                        // result in onActivityResult().
                                        ResolvableApiException rae = (ResolvableApiException) e;
                                        rae.startResolutionForResult(UserLocation.this, REQUEST_CODE);
                                    } catch (IntentSender.SendIntentException sie) {
                                        Log.i(TAG, "PendingIntent unable to execute request.");
                                    }
                                }
                                break;
                            case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                                String errorMessage = "Location settings are inadequate, and cannot be " +
                                        "fixed here. Fix in Settings.";
                                Log.e(TAG, errorMessage);

                                Toast.makeText(UserLocation.this, errorMessage, Toast.LENGTH_LONG).show();
                        }

                        onLocationChange();
                    }
                });
    }