ArrayAdapter中的NPE，createViewFromResource

Question

我有自动完成字段，该字段可从Google Places API获取建议。 在Google Play控制台中，我发现了一些与ArrayAdapter相关的用户异常。

    java.lang.NullPointerException: 
  at android.widget.ArrayAdapter.createViewFromResource (ArrayAdapter.java:445)
  at android.widget.ArrayAdapter.getView (ArrayAdapter.java:407)
  at fragment.common.PlaceAutocompleteAdapter.getView (PlaceAutocompleteAdapter.java:2)
  at android.widget.AbsListView.obtainView (AbsListView.java:3189)
  at android.widget.DropDownListView.obtainView (DropDownListView.java:323)
  at android.widget.ListView.makeAndAddView (ListView.java:2197)

我的ArrayAdapter的完整代码：

public class PlaceAutocompleteAdapter
    extends ArrayAdapter<AutocompletePrediction> implements Filterable {

private final LatLng currentLocation;

private List<AutocompletePrediction> resultList;
private GoogleApiClient googleApiClient;
private LatLngBounds bounds;
private AutocompleteFilter placeFilter;

public PlaceAutocompleteAdapter(final Context context, final GoogleApiClient googleApiClient,
                                final LatLngBounds bounds, final AutocompleteFilter filter,
                                final LatLng currentLocation) {
    super(context, Layouts.AUTOCOMPLETE_ROW_LAYOUT, Layouts.AUTOCOMPLETE_ROW_ADDRESS);
    this.googleApiClient = googleApiClient;
    this.bounds = bounds;
    this.placeFilter = filter;
    this.currentLocation = currentLocation;
}

@Override
public int getCount() {
    return resultList != null ? resultList.size() : 0;
}

@Override
public AutocompletePrediction getItem(int position) {
    if (position < 0 || getCount() - 1 < position) {
        return  null;
    }
    return resultList.get(position);
}

@NonNull
@Override
public View getView(int position, final View convertView, @NonNull final ViewGroup parent) {
    View row = super.getView(position, convertView, parent);
    AutocompletePrediction item = getItem(position);
    if (item == null) {
        return row;
    }

    final TextView addressText = row.findViewById(Layouts.AUTOCOMPLETE_ROW_ADDRESS);
    final TextView distanceText = row.findViewById(Layouts.AUTOCOMPLETE_ROW_DISTANCE);

    PendingResult<PlaceBuffer> placeResult = Places.GeoDataApi.getPlaceById(googleApiClient, item.getPlaceId());
    placeResult.setResultCallback(new ResultCallback<PlaceBuffer>() {
                                      @Override
                                      public void onResult(@NonNull final PlaceBuffer places) {
                                          if (currentLocation != null && places.getStatus().isSuccess() && places.get(0) != null) {
                                              Place place = places.get(0);
                                              double distance = Distance.getDistance(currentLocation, place.getLatLng()) / 1000;
                                              distanceText.setText(getContext().getString(R.string.distanceStats, Parameters.DISTANCE_FORMAT.format(distance)));
                                          }
                                          places.release();
                                      }
                                  }
    );

    addressText.setText(item.getPrimaryText(null));
    return row;
}

@NonNull
@Override
public Filter getFilter() {
    return new Filter() {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults results = new FilterResults();
            if (constraint != null) {
                resultList = getAutocomplete(constraint);
                if (resultList != null) {
                    results.values = resultList;
                    results.count = resultList.size();
                }
            }
            return results;
        }

        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            if (results != null && results.count > 0) {
                notifyDataSetChanged();
            } else {
                notifyDataSetInvalidated();
            }
        }

        @Override
        public CharSequence convertResultToString(Object resultValue) {
            if (resultValue instanceof AutocompletePrediction) {
                return ((AutocompletePrediction) resultValue).getPrimaryText(null);
            } else {
                return super.convertResultToString(resultValue);
            }
        }
    };
}

private List<AutocompletePrediction> getAutocomplete(CharSequence constraint) {
    if (googleApiClient.isConnected()) {
        PendingResult<AutocompletePredictionBuffer> results =
                Places.GeoDataApi
                        .getAutocompletePredictions(googleApiClient, constraint.toString(),
                                bounds, placeFilter);

        AutocompletePredictionBuffer autocompletePredictions = results
                .await(30, TimeUnit.SECONDS);

        final Status status = autocompletePredictions.getStatus();
        if (!status.isSuccess()) {
            autocompletePredictions.release();
            return null;
        }

        return DataBufferUtils.freezeAndClose(autocompletePredictions);
    }
    return null;
}

我不明白为什么会在不同的设备和不同的android版本上发生。而且我无法在设备上复制它。