initialize method

Future<void> initialize({ Duration timeout = const Duration(seconds: 60), })

Initialization.

Location information is available or not and permissions are granted.

初期化を行います。

位置情報が利用可能かどうかとパーミッションの許可を行います。

Implementation

Future<void> initialize({
  Duration timeout = const Duration(seconds: 60),
}) async {
  if (initialized) {
    return;
  }
  if (_completer != null) {
    return _completer?.future;
  }
  _completer = Completer<void>();
  try {
    if (!await location.Geolocator.isLocationServiceEnabled()
        .timeout(timeout)) {
      throw Exception(
        "Location service not available. The platform may not be supported or it may be disabled in the settings. please confirm.",
      );
    }
    _permissionStatus =
        await Permission.locationWhenInUse.status.timeout(timeout);
    if (_permissionStatus != PermissionStatus.granted) {
      _permissionStatus =
          await Permission.locationWhenInUse.request().timeout(timeout);
    }
    if (_permissionStatus != PermissionStatus.granted) {
      throw Exception(
        "You are not authorized to use the location information service. Check the permission settings.",
      );
    }
    _initialized = true;
    notifyListeners();
    _completer?.complete();
    _completer = null;
  } catch (e) {
    _completer?.completeError(e);
    _completer = null;
    rethrow;
  } finally {
    _completer?.complete();
    _completer = null;
  }
}