autoCompleteSearch method

void autoCompleteSearch(String place)

Fetches the place autocomplete list with the query place.

Implementation

void autoCompleteSearch(String place) async {
  try {
    place = place.replaceAll(" ", "+");

    var endpoint =
        "https://maps.googleapis.com/maps/api/place/autocomplete/json?"
        "key=${widget.apiKey}&"
        "language=${widget.localizationItem!.languageCode}&"
        "input={$place}&sessiontoken=${this.sessionToken}";

    if (this.locationResult != null) {
      endpoint += "&location=${this.locationResult!.latLng?.latitude}," +
          "${this.locationResult!.latLng?.longitude}";
    }

    final response = await http.get(Uri.parse(endpoint));

    if (response.statusCode != 200) {
      throw Error();
    }

    final responseJson = jsonDecode(response.body);

    if (responseJson['predictions'] == null) {
      throw Error();
    }

    List<dynamic> predictions = responseJson['predictions'];

    List<RichSuggestion> suggestions = [];

    if (predictions.isEmpty) {
      AutoCompleteItem aci = AutoCompleteItem();
      aci.text = widget.localizationItem!.noResultsFound;
      aci.offset = 0;
      aci.length = 0;

      suggestions.add(RichSuggestion(aci, () {}));
    } else {
      for (dynamic t in predictions) {
        final aci = AutoCompleteItem()
          ..id = t['place_id']
          ..text = t['description']
          ..offset = t['matched_substrings'][0]['offset']
          ..length = t['matched_substrings'][0]['length'];

        suggestions.add(RichSuggestion(aci, () {
          FocusScope.of(context).requestFocus(FocusNode());
          decodeAndSelectPlace(aci.id!);
        }));
      }
    }

    displayAutoCompleteSuggestions(suggestions);
  } catch (e) {
    print(e);
  }
}