Flutter 将纬度和经度转换为人类可读的地址

import 'package:flutter/material.dart';
import 'package:geocoding/geocoding.dart';
import 'package:geolocator/geolocator.dart';

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  Position _currentPosition;
  String _currentAddress;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Location"),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            if (_currentAddress != null) Text(
              _currentAddress
            ),
            FlatButton(
              child: Text("Get location"),
              onPressed: () {
                _getCurrentLocation();
              },
            ),
          ],
        ),
      ),
    );
  }

  _getCurrentLocation() {
    Geolocator
      .getCurrentPosition(desiredAccuracy: LocationAccuracy.best, forceAndroidLocationManager: true)
      .then((Position position) {
        setState(() {
          _currentPosition = position;
          _getAddressFromLatLng();
        });
      }).catchError((e) {
        print(e);
      });
  }

  _getAddressFromLatLng() async {
    try {
      List<Placemark> placemarks = await placemarkFromCoordinates(
        _currentPosition.latitude,
        _currentPosition.longitude
      );

      Placemark place = placemarks[0];

      setState(() {
        _currentAddress = "${place.locality}, ${place.postalCode}, ${place.country}";
      });
    } catch (e) {
      print(e);
    }
  }
}