How to get coordinates from address using geocode in Flutter? - flutter

Question

Can someone please teach me how to get the longitude and latitude from a given address using geocode in flutter?
I want to get the coordinates to use them as markers on the map.
Update: Here is my code:
class _PlaceInfoState extends State {
late double _latitude;
late double _longitude;
#override
void initState(){
getLatLon();
super.initState();
}
Future <void> getLatLon() async {
GeoCode geoCode = GeoCode();
try {
Coordinates coordinates = await geoCode.forwardGeocoding(address: "${widget.packageModel.destination}");
final lat = coordinates.latitude!;
final lon = coordinates.longitude!;
setState((){
_latitude = lat;
_longitude = lon;
});
} catch (e) {
print(e);
}
}
This is where I try to put the show coordinates on the map but it doesn't seem to show the map, it said that the _latitude has not been initialized:
//Location
Container(
padding: EdgeInsets.only(top: 20),
height: MediaQuery.of(context).size.height / 2.5,
width: MediaQuery.of(context).size.width,
child: GoogleMap(
scrollGesturesEnabled: true,
mapType: MapType.normal,
initialCameraPosition: CameraPosition(
target: LatLng(_latitude, _longitude),
zoom: 14
)
),
),

Answer 1

The example from the documentation:
import 'package:geocode/geocode.dart';
void main() async {
GeoCode geoCode = GeoCode();
try {
Coordinates coordinates = await geoCode.forwardGeocoding(
address: "532 S Olive St, Los Angeles, CA 90013");
print("Latitude: ${coordinates.latitude}");
print("Longitude: ${coordinates.longitude}");
} catch (e) {
print(e);
}
}
Do you have further questions?