absensi_sas_flutter/lib/test_map.dart

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

class TestMap extends StatefulWidget {
  const TestMap({super.key});

  @override
  State<TestMap> createState() => _TestMapState();
}

class _TestMapState extends State<TestMap> {
  /// Determine the current position of the device.
  ///
  /// When the location services are not enabled or permissions
  /// are denied the `Future` will return an error.
  Future<Map<String, dynamic>> determinePosition() async {
    bool serviceEnabled;
    LocationPermission permission;

    // Test if location services are enabled.
    serviceEnabled = await Geolocator.isLocationServiceEnabled();
    if (!serviceEnabled) {
      // Location services are not enabled don't continue
      // accessing the position and request users of the
      // App to enable the location services.
      return Future.error('Location services are disabled.');
    }

    permission = await Geolocator.checkPermission();
    if (permission == LocationPermission.denied) {
      permission = await Geolocator.requestPermission();
      if (permission == LocationPermission.denied) {
        // Permissions are denied, next time you could try
        // requesting permissions again (this is also where
        // Android's shouldShowRequestPermissionRationale
        // returned true. According to Android guidelines
        // your App should show an explanatory UI now.
        // return Future.error('Location permissions are denied');

        return {
          "message": "Ijinkan Lokasi di HP",
          "error": true,
        };
      }
    }

    if (permission == LocationPermission.deniedForever) {
      // Permissions are denied forever, handle appropriately.
      // return Future.error(
      //     'Location permissions are permanently denied, we cannot request permissions.');
      return {
        "message": "Ijinkan Lokasi di HP",
        "error": true,
      };
    }

    // When we reach here, permissions are granted and we can
    // continue accessing the position of the device.
    Position position = await Geolocator.getCurrentPosition();

    return {
      "position": position,
      "message": "Berhasil mendapatkan posisi",
      "error": false
    };
  }

  String latitude = "";
  String longitude = "";
  String addressFromCoordinat = "";
  String jarak = "";

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Test Map'),
      ),
      body: SafeArea(
        child: Padding(
          padding: const EdgeInsets.all(8.0),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              (latitude.isNotEmpty && longitude.isNotEmpty)
                  ? Text('Coordinat Akhir: $latitude , $longitude')
                  : SizedBox.shrink(),
              (addressFromCoordinat.isNotEmpty)
                  ? Text('Address : $addressFromCoordinat')
                  : SizedBox.shrink(),
              (jarak.isNotEmpty) ? Text('Jarak : $jarak') : SizedBox.shrink(),
              SizedBox(
                height: 10,
              ),
              Text('SFA Klodran : -7.5350973, 110.7921524'),
              SizedBox(
                height: 10,
              ),
              ElevatedButton(
                child: Text('Determine Position'),
                onPressed: () async {
                  print('ABSENSI');
                  Map<String, dynamic> posx = await determinePosition();
                  print('${posx}');

                  if (posx['error'] == false) {
                    Position position = posx['position'];
                    List<Placemark> placemarks = await placemarkFromCoordinates(
                        position.latitude, position.longitude);
                    print('placemark : ${placemarks}');

                    double jarakx = await Geolocator.distanceBetween(-7.5350973,
                        110.7921524, position.latitude, position.longitude);

                    setState(() {
                      jarak = jarakx.toString() + " meter";
                      longitude = position.longitude.toString();
                      latitude = position.latitude.toString();
                      addressFromCoordinat = placemarks[0].street.toString() +
                          " , " +
                          placemarks[0].subLocality.toString() +
                          " , " +
                          placemarks[0].locality.toString() +
                          " , " +
                          placemarks[0].postalCode.toString() +
                          " , " +
                          placemarks[0].country.toString();
                    });
                  } else {
                    setState(() {
                      longitude = "";
                      addressFromCoordinat = "";
                      jarak = "";
                      latitude = posx['message'].toString();
                    });
                  }
                },
              ),
              SizedBox(
                height: 20,
              ),
              ElevatedButton(
                onPressed: () {
                  setState(() {
                    latitude = "";
                    longitude = "";
                    addressFromCoordinat = "";
                    jarak = "";
                  });
                },
                child: Text('Clear'),
              ),
            ],
          ),
        ),
      ),
    );
  }
}