颤动中的实时定位

Question

如何在flutter中获得带电位置的坐标？我想要得到实时的位置坐标。怎样才能做到这一点呢？我在flutter中导入了位置包，但我只想获得实时位置的坐标。

Answer 1

首先，你需要得到一个位置插件。https://pub.dev/packages/location。另外，我建议使用Provider插件并创建模型文件。它将更容易管理。此外，您还必须检查设备的权限状态。您将通过链接获得您想要了解的所有信息

class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {

 Location _location = Location();
 LocationData currentLocation;


@override
  void initState() {
    location = new Location();
    location.onLocationChanged.listen((LocationData cLoc) {
      currentLocation = cLoc;

      });

    super.initState();
  }


  @override


Widget build(BuildContext context) {
        return Center(
  child: Text(
      'Location: Lat${currentLocation.latitude}, Long: ${currentLocation.longitude}'),);}}

Answer 2

Location location = new Location();

bool _serviceEnabled;
PermissionStatus _permissionGranted;
LocationData _locationData;

_serviceEnabled = await location.serviceEnabled();
if (!_serviceEnabled) {
  _serviceEnabled = await location.requestService();
  if (!_serviceEnabled) {
    return;
  }
}

_permissionGranted = await location.hasPermission();
if (_permissionGranted == PermissionStatus.denied) {
  _permissionGranted = await location.requestPermission();
  if (_permissionGranted != PermissionStatus.granted) {
    return;
  }
}

location.onLocationChanged.listen((LocationData currentLocation) {
  // Use current location
});