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fixed geocoding params

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This commit is contained in:
Thibault Deckers 2021-03-11 10:27:41 +09:00
parent cef6c8b479
commit 30e8521aaa
2 changed files with 6 additions and 3 deletions
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6
lib/model/source/location.dart
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@ -82,14 +82,14 @@ mixin LocationMixin on SourceBase {
// - 652 calls (22%) when approximating to 2 decimal places (~1km - town or village) // - 652 calls (22%) when approximating to 2 decimal places (~1km - town or village)
// cf https://en.wikipedia.org/wiki/Decimal_degrees#Precision // cf https://en.wikipedia.org/wiki/Decimal_degrees#Precision
final latLngFactor = pow(10, 2); final latLngFactor = pow(10, 2);
Tuple2 approximateLatLng(AvesEntry entry) { Tuple2<int, int> approximateLatLng(AvesEntry entry) {
final lat = entry.catalogMetadata?.latitude; final lat = entry.catalogMetadata?.latitude;
final lng = entry.catalogMetadata?.longitude; final lng = entry.catalogMetadata?.longitude;
if (lat == null || lng == null) return null; if (lat == null || lng == null) return null;
return Tuple2((lat * latLngFactor).round(), (lng * latLngFactor).round()); return Tuple2<int, int>((lat * latLngFactor).round(), (lng * latLngFactor).round());
} }
final knownLocations = <Tuple2, AddressDetails>{}; final knownLocations = <Tuple2<int, int>, AddressDetails>{};
byLocated[true]?.forEach((entry) => knownLocations.putIfAbsent(approximateLatLng(entry), () => entry.addressDetails)); byLocated[true]?.forEach((entry) => knownLocations.putIfAbsent(approximateLatLng(entry), () => entry.addressDetails));
stateNotifier.value = SourceState.locating; stateNotifier.value = SourceState.locating;

3
lib/services/geocoding_service.dart
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@ -15,6 +15,9 @@ class GeocodingService {
'latitude': coordinates.latitude, 'latitude': coordinates.latitude,
'longitude': coordinates.longitude, 'longitude': coordinates.longitude,
'locale': locale, 'locale': locale,
// we only really need one address, but sometimes the native geocoder
// returns nothing with `maxResults` of 1, but succeeds with `maxResults` of 2+
'maxResults': 2,
}); });
return (result as List).cast<Map>().map((map) => Address.fromMap(map)).toList(); return (result as List).cast<Map>().map((map) => Address.fromMap(map)).toList();
} on PlatformException catch (e) { } on PlatformException catch (e) {