getLocation

Get the current location with getLocation.

The getLocation method

The getLocation method reads the device's current position. It is an asynchronous method, so you await it with await, and it returns a LocationData. The first call may be slow because the device gathers the GPS signal.

final data = await location.getLocation();
print(data.latitude);

async and await

Because getLocation is asynchronous, the calling function must be marked async and the method must be awaited with await. Otherwise a compile error occurs. This rule applies to all asynchronous operations in Dart.

void main() async {
  final data = await location.getLocation();
}

Exercise Get the location and print it

Create a Location instance, await the location with getLocation and print the latitude.

Show example solution

class LocationData {
  final double latitude;
  final double longitude;
  LocationData(this.latitude, this.longitude);
}

class Location {
  Future<LocationData> getLocation() async => LocationData(41.0, 29.0);
}

void main() async {
  final location = Location();
  final data = await location.getLocation();
  print(data.latitude);
}

Test yourself

What does the getLocation method return?
- Future<String>
- Stream<LocationData>
- Future<void>
- Future<LocationData>
Show answer

Future<LocationData> — getLocation asynchronously returns a LocationData; it is a Future, not a Stream.

Call getLocation

final data = await location.____;

Show answer

final data = await location.getLocation();

getLocation parts

getLocation

Gets the current location
await

Awaits asynchronously
LocationData

Location data
async

Function marker

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