Change to RxDart and Big Changes

android/gradle.properties

@@ -1,2 +1,3 @@
 org.gradle.jvmargs=-Xmx1536M
 
+android.enableR8=true

lib/bloc/position_bloc.dart

@@ -0,0 +1,32 @@
+import 'package:geo_app/model/response.dart';
+import 'package:geo_app/model/setting.dart';
+import 'package:geo_app/repository/position_repository.dart';
+import 'package:rxdart/rxdart.dart';
+
+class PositionBloc {
+  PositionRepository _repository;
+  final PublishSubject<ResponseModel> _subject =
+      PublishSubject<ResponseModel>();
+
+  SettingModel _settingModel;
+
+  PositionBloc(this._settingModel) {
+    this._repository = PositionRepository(this._settingModel);
+  }
+
+  dispose() {
+    _subject.close();
+  }
+
+  sendPosition(String lat, String lng) async {
+    ResponseModel response = await _repository.sendPosition(lat, lng);
+    _subject.sink.add(response);
+  }
+
+  stopTracking(String lat, String lng) async {
+    ResponseModel response = await _repository.stopTracking();
+    _subject.sink.add(response);
+  }
+
+  PublishSubject<ResponseModel> get subject => _subject;
+}

lib/bloc/setting.dart

@@ -0,0 +1,38 @@
+import 'package:rxdart/rxdart.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:geo_app/model/setting.dart';
+
+class SettingBloc {
+  PublishSubject<SettingModel> _subject;
+
+  final String _host = "host";
+  final String _id = "id";
+
+  SettingBloc() {
+    this._subject = PublishSubject<SettingModel>();
+  }
+
+  Future<SharedPreferences> getSharedPreferences() async {
+    return await SharedPreferences.getInstance();
+  }
+
+  setSetting(SettingModel setting) async {
+    SharedPreferences sharedPreferences = await this.getSharedPreferences();
+    sharedPreferences.setString(_host, setting.host);
+    sharedPreferences.setString(_id, setting.id);
+    this.getSetting();
+  }
+
+  getSetting() async {
+    SharedPreferences sharedPreferences = await this.getSharedPreferences();
+    _subject.sink.add(new SettingModel(
+      sharedPreferences.getString(_host),
+    ));
+  }
+
+  dispose() {
+    _subject.close();
+  }
+
+  PublishSubject<SettingModel> get subject => _subject;
+}

lib/bloc/unique_id_bloc.dart

@@ -0,0 +1,27 @@
+import 'package:geo_app/model/setting.dart';
+import 'package:geo_app/model/unique_id_model.dart';
+import 'package:geo_app/repository/unique_id_repository.dart';
+import 'package:rxdart/rxdart.dart';
+
+class UniqueIDBloc {
+  UniqueIDRepository _repository;
+  final PublishSubject<UniqueIDModel> _subject =
+      PublishSubject<UniqueIDModel>();
+
+  SettingModel _settingModel;
+
+  UniqueIDBloc(this._settingModel) {
+    this._repository = UniqueIDRepository(this._settingModel);
+  }
+
+  dispose() {
+    _subject.close();
+  }
+
+  getUniqueID() async {
+    UniqueIDModel response = await _repository.getUniqueID();
+    _subject.sink.add(response);
+  }
+
+  PublishSubject<UniqueIDModel> get subject => _subject;
+}

lib/component/loader.dart

@@ -0,0 +1,171 @@
+import 'package:flutter/material.dart';
+import 'dart:math';
+
+enum DotType { square, circle, diamond, icon }
+
+class Loader extends StatefulWidget {
+  final Color dotOneColor;
+  final Color dotTwoColor;
+  final Color dotThreeColor;
+  final Duration duration;
+  final DotType dotType;
+  final Icon dotIcon;
+
+  Loader(
+      {this.dotOneColor = Colors.redAccent,
+      this.dotTwoColor = Colors.green,
+      this.dotThreeColor = Colors.blueAccent,
+      this.duration = const Duration(milliseconds: 1000),
+      this.dotType = DotType.circle,
+      this.dotIcon = const Icon(Icons.blur_on)});
+
+  @override
+  _LoaderState createState() => _LoaderState();
+}
+
+class _LoaderState extends State<Loader> with SingleTickerProviderStateMixin {
+  Animation<double> animation_1;
+  Animation<double> animation_2;
+  Animation<double> animation_3;
+  AnimationController controller;
+
+  @override
+  void initState() {
+    super.initState();
+
+    controller = AnimationController(duration: widget.duration, vsync: this);
+
+    animation_1 = Tween(begin: 0.0, end: 1.0).animate(
+      CurvedAnimation(
+        parent: controller,
+        curve: Interval(0.0, 0.80, curve: Curves.ease),
+      ),
+    );
+
+    animation_2 = Tween(begin: 0.0, end: 1.0).animate(
+      CurvedAnimation(
+        parent: controller,
+        curve: Interval(0.1, 0.9, curve: Curves.ease),
+      ),
+    );
+
+    animation_3 = Tween(begin: 0.0, end: 1.0).animate(
+      CurvedAnimation(
+        parent: controller,
+        curve: Interval(0.2, 1.0, curve: Curves.ease),
+      ),
+    );
+
+    controller.addListener(() {
+      setState(() {
+        //print(animation_1.value);
+      });
+    });
+
+    controller.repeat();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      child: new Row(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: <Widget>[
+          new Transform.translate(
+            offset: Offset(
+              0.0,
+              -30 *
+                  (animation_1.value <= 0.50
+                      ? animation_1.value
+                      : 1.0 - animation_1.value),
+            ),
+            child: new Padding(
+              padding: const EdgeInsets.only(right: 8.0),
+              child: Dot(
+                radius: 10.0,
+                color: widget.dotOneColor,
+                type: widget.dotType,
+                icon: widget.dotIcon,
+              ),
+            ),
+          ),
+          Transform.translate(
+            offset: Offset(
+              0.0,
+              -30 *
+                  (animation_2.value <= 0.50
+                      ? animation_2.value
+                      : 1.0 - animation_2.value),
+            ),
+            child: new Padding(
+              padding: const EdgeInsets.only(right: 8.0),
+              child: Dot(
+                radius: 10.0,
+                color: widget.dotTwoColor,
+                type: widget.dotType,
+                icon: widget.dotIcon,
+              ),
+            ),
+          ),
+          Transform.translate(
+            offset: Offset(
+              0.0,
+              -30 *
+                  (animation_3.value <= 0.50
+                      ? animation_3.value
+                      : 1.0 - animation_3.value),
+            ),
+            child: new Padding(
+              padding: const EdgeInsets.only(right: 8.0),
+              child: Dot(
+                radius: 10.0,
+                color: widget.dotThreeColor,
+                type: widget.dotType,
+                icon: widget.dotIcon,
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    controller.dispose();
+    super.dispose();
+  }
+}
+
+class Dot extends StatelessWidget {
+  final double radius;
+  final Color color;
+  final DotType type;
+  final Icon icon;
+
+  Dot({this.radius, this.color, this.type, this.icon});
+
+  @override
+  Widget build(BuildContext context) {
+    return new Center(
+      child: type == DotType.icon
+          ? Icon(
+              icon.icon,
+              color: color,
+              size: 1.3 * radius,
+            )
+          : new Transform.rotate(
+              angle: type == DotType.diamond ? pi / 4 : 0.0,
+              child: Container(
+                width: radius,
+                height: radius,
+                decoration: BoxDecoration(
+                    color: color,
+                    shape: type == DotType.circle
+                        ? BoxShape.circle
+                        : BoxShape.rectangle),
+              ),
+            ),
+    );
+  }
+}

lib/main.dart

@@ -1,149 +1,17 @@
-import 'dart:async';
-
-import 'package:background_location/background_location.dart';
 import 'package:flutter/material.dart';
-import 'package:geo_app/model/position.dart';
-import 'package:google_maps_flutter/google_maps_flutter.dart';
+import 'package:geo_app/page/startup.dart';
 
 void main() => runApp(MyApp());
 
 class MyApp extends StatelessWidget {
-  // This widget is the root of your application.
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
       title: 'Geo Smart App',
       theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // Try running your application with "flutter run". You'll see the
-        // application has a blue toolbar. Then, without quitting the app, try
-        // changing the primarySwatch below to Colors.green and then invoke
-        // "hot reload" (press "r" in the console where you ran "flutter run",
-        // or simply save your changes to "hot reload" in a Flutter IDE).
-        // Notice that the counter didn't reset back to zero; the application
-        // is not restarted.
         primarySwatch: Colors.blue,
       ),
-      home: MyHomePage(title: 'Geo Smart App'),
+      home: Startup(),
     );
   }
 }
-
-class MyHomePage extends StatefulWidget {
-  MyHomePage({Key key, this.title}) : super(key: key);
-
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
-  final String title;
-
-  @override
-  _MyHomePageState createState() => _MyHomePageState();
-}
-
-class _MyHomePageState extends State<MyHomePage> {
-  Completer<GoogleMapController> _controller = Completer();
-  double latitude = 0.0;
-  double longitude = 0.0;
-  double altitude = 0.0;
-  double accuracy = 0.0;
-  double bearing = 0.0;
-  double speed = 0.0;
-  String message = "Connecting to Server";
-  bool _finish = false;
-  Position _position;
-
-  @override
-  void initState() {
-    super.initState();
-    BackgroundLocation.startLocationService();
-    message = "Connecting to Server";
-    Position.getPosition().then((position) {
-      setState(() {
-        _position = position;
-        _finish = this._position.isValid();
-      });
-    }, onError: (error) {
-      message = "Something wrong";
-    });
-  }
-
-  static final CameraPosition _kGooglePlex = CameraPosition(
-    target: LatLng(-6.914744, 107.609810),
-    zoom: 14.4746,
-  );
-
-  @override
-  Widget build(BuildContext context) {
-    return new Scaffold(
-      body: Stack(
-        children: <Widget>[
-          GoogleMap(
-            mapType: MapType.normal,
-            initialCameraPosition: _kGooglePlex,
-            myLocationEnabled: true,
-            myLocationButtonEnabled: true,
-            onMapCreated: (GoogleMapController controller) {
-              _controller.complete(controller);
-              BackgroundLocation.getLocationUpdates((location) async {
-                setState(() {
-                  this.latitude = location.latitude;
-                  this.longitude = location.longitude;
-                  this.accuracy = location.accuracy;
-                  this.altitude = location.altitude;
-                  this.bearing = location.bearing;
-                  this.speed = location.speed;
-
-                  if (this._position != null) {
-                    if (this._position.isValid()) {
-                      this._position.lat = this.latitude.toString();
-                      this._position.lng = this.longitude.toString();
-                      this._position.sendPosition();
-                    }
-                  }
-                });
-                // Make Camera Follow the Marker
-                // final GoogleMapController controller = await _controller.future;
-                // controller.animateCamera(
-                // CameraUpdate.newCameraPosition(
-                // new CameraPosition(
-                // target: LatLng(this.latitude, this.longitude),
-                // zoom: 19.151926040649414,
-                // ),
-                // ),
-                // );
-              });
-            },
-          ),
-          Visibility(
-            visible: !_finish,
-            child: Container(
-              decoration: BoxDecoration(
-                color: Colors.black26.withOpacity(0.8),
-              ),
-              child: Center(
-                child: Text(
-                  message,
-                  style: TextStyle(color: Colors.white),
-                ),
-              ),
-            ),
-          )
-        ],
-      ),
-    );
-  }
-
-  @override
-  void dispose() {
-    BackgroundLocation.stopLocationService();
-    super.dispose();
-  }
-}

lib/model/position.dart

@@ -2,7 +2,7 @@ import 'dart:convert';
 
 import 'package:geo_app/config.dart';
 import 'package:geo_app/model/response.dart';
-import 'package:geo_app/model/unique_id.dart';
+import 'package:geo_app/model/unique_id_model.dart';
 import 'package:http/http.dart' as http;
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -41,9 +41,9 @@ class Position {
       lng: "0.0",
     );
     if (spId == null) {
-      final response = await http.get(Config.api + "/unique/id");
+      final response = await http.get(Config.api + "/id/get/unique");
       if (response.statusCode == 200) {
-        position.id = UniqueId.fromJson(json.decode(response.body)).id;
+        position.id = UniqueIDModel.fromJson(json.decode(response.body)).id;
       } else {
         throw Exception("Something Error");
       }
@@ -56,14 +56,28 @@ class Position {
     return id != null;
   }
 
-  Future<Response> sendPosition() async {
-    Response result;
+  Future<ResponseModel> sendPosition() async {
+    ResponseModel result;
     final response = await http.post(
-      Config.api + "/set/point",
+      Config.api + "/point/set",
       body: json.encode(this.toJson()),
     );
     if (response.statusCode == 200) {
-      result = Response.fromJson(json.decode(response.body));
+      result = ResponseModel.fromJson(json.decode(response.body));
+    } else {
+      throw Exception("Something Error");
+    }
+    return result;
+  }
+
+  Future<ResponseModel> stopPosition() async {
+    ResponseModel result;
+    final response = await http.post(
+      Config.api + "/point/unset",
+      body: json.encode(this.toJson()),
+    );
+    if (response.statusCode == 200) {
+      result = ResponseModel.fromJson(json.decode(response.body));
     } else {
       throw Exception("Something Error");
     }

lib/model/response.dart

@@ -1,9 +1,9 @@
-class Response {
+class ResponseModel {
   String status;
 
-  Response({this.status});
+  ResponseModel({this.status});
 
-  Response.fromJson(Map<String, dynamic> json) {
+  ResponseModel.fromJson(Map<String, dynamic> json) {
     status = json['status'];
   }
 

lib/model/setting.dart

@@ -0,0 +1,6 @@
+class SettingModel {
+  String host = "";
+  String id = "";
+
+  SettingModel(this.host);
+}

lib/model/unique_id_model.dart

@@ -1,12 +1,17 @@
-class UniqueId {
+class UniqueIDModel {
   String id;
+  bool error = false;
 
-  UniqueId({this.id});
+  UniqueIDModel({this.id});
 
-  UniqueId.fromJson(Map<String, dynamic> json) {
+  UniqueIDModel.fromJson(Map<String, dynamic> json) {
     id = json['id'];
   }
 
+  UniqueIDModel.error() {
+    error = true;
+  }
+
   Map<String, dynamic> toJson() {
     final Map<String, dynamic> data = new Map<String, dynamic>();
     data['id'] = this.id;

lib/page/map.dart

@@ -0,0 +1,126 @@
+import 'dart:async';
+
+import 'package:background_location/background_location.dart';
+import 'package:flutter/material.dart';
+import 'package:geo_app/bloc/position_bloc.dart';
+import 'package:geo_app/bloc/setting.dart';
+import 'package:geo_app/model/position.dart';
+import 'package:google_maps_flutter/google_maps_flutter.dart';
+import 'package:flutter_background_geolocation/flutter_background_geolocation.dart'
+    as bg;
+
+class Map extends StatefulWidget {
+  Map({Key key, this.title}) : super(key: key);
+
+  final String title;
+
+  @override
+  _MapState createState() => _MapState();
+}
+
+class _MapState extends State<Map> {
+  Completer<GoogleMapController> _controller = Completer();
+  double latitude = 0.0;
+  double longitude = 0.0;
+  double altitude = 0.0;
+  double accuracy = 0.0;
+  double bearing = 0.0;
+  double speed = 0.0;
+  Position _position;
+  PositionBloc _positionBloc;
+  SettingBloc _settingBloc;
+
+  String id;
+  String host;
+
+  @override
+  void initState() {
+    BackgroundLocation.startLocationService();
+    super.initState();
+    _settingBloc = new SettingBloc();
+
+    _settingBloc.getSetting();
+
+    _settingBloc.subject.listen((settingModel) {
+      this.id = settingModel.id;
+      this.host = settingModel.host;
+
+      if (this.host != null && this.host != "") {
+        setState(() {
+          _positionBloc = new PositionBloc(settingModel);
+        });
+      }
+    });
+    bg.BackgroundGeolocation.onLocation((bg.Location location) {
+      print('[location] - $location');
+    });
+    bg.BackgroundGeolocation.ready(
+      bg.Config(
+          desiredAccuracy: bg.Config.DESIRED_ACCURACY_HIGH,
+          distanceFilter: 10.0,
+          stopOnTerminate: false,
+          startOnBoot: true,
+          debug: true,
+          logLevel: bg.Config.LOG_LEVEL_VERBOSE),
+    ).then((bg.State state) {
+      if (!state.enabled) {
+        bg.BackgroundGeolocation.start();
+      }
+    });
+    BackgroundLocation.getLocationUpdates((location) async {
+      print("Location Update");
+      setState(() {
+        this.latitude = location.latitude;
+        this.longitude = location.longitude;
+        this.accuracy = location.accuracy;
+        this.altitude = location.altitude;
+        this.bearing = location.bearing;
+        this.speed = location.speed;
+
+        if (this._position != null) {
+          if (this._position.isValid()) {
+            print("VALID");
+            if (_positionBloc != null) {
+              print("SEND");
+              _positionBloc.sendPosition(
+                this._position.lat.toString(),
+                this._position.lng.toString(),
+              );
+            }
+          }
+        }
+      });
+    });
+  }
+
+  static final CameraPosition _kGooglePlex = CameraPosition(
+    target: LatLng(-6.914744, 107.609810),
+    zoom: 14.4746,
+  );
+
+  @override
+  Widget build(BuildContext context) {
+    return new Scaffold(
+      body: Stack(
+        children: <Widget>[
+          GoogleMap(
+            mapType: MapType.normal,
+            initialCameraPosition: _kGooglePlex,
+            myLocationEnabled: true,
+            myLocationButtonEnabled: true,
+            onMapCreated: (GoogleMapController controller) {
+              _controller.complete(controller);
+              print("Map Created");
+            },
+          ),
+        ],
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    BackgroundLocation.stopLocationService();
+    super.dispose();
+  }
+}

lib/page/setting.dart

@@ -0,0 +1,95 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:geo_app/bloc/setting.dart';
+import 'package:geo_app/bloc/unique_id_bloc.dart';
+import 'package:geo_app/model/setting.dart';
+import 'package:geo_app/page/map.dart';
+
+class Setting extends StatefulWidget {
+  @override
+  State<StatefulWidget> createState() {
+    return new _SettingState();
+  }
+}
+
+class _SettingState extends State<Setting> {
+  final _hostController = TextEditingController();
+  SettingBloc _settingBloc;
+  UniqueIDBloc _uniqueIDBloc;
+  String id;
+  String host;
+
+  @override
+  void initState() {
+    _settingBloc = new SettingBloc();
+
+    _settingBloc.getSetting();
+
+    _settingBloc.subject.listen((settingModel) {
+      this.id = settingModel.id;
+      this.host = settingModel.host;
+
+      _hostController.text = this.host;
+
+      if (this.host != null && this.host != "") {
+        _uniqueIDBloc = new UniqueIDBloc(settingModel);
+        _uniqueIDBloc.getUniqueID();
+      }
+
+      if (_uniqueIDBloc != null) {
+        this._uniqueIDBloc.subject.listen((uniqueId) {
+          if (uniqueId.id != null && uniqueId.id != "") {
+            Navigator.of(context).pushReplacement(new MaterialPageRoute(
+              builder: (BuildContext context) => Map(),
+            ));
+          }
+        });
+      }
+    });
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Container(
+        child: Center(
+          child: Container(
+            child: Column(
+              children: <Widget>[
+                Container(
+                  decoration: BoxDecoration(
+                    image: DecorationImage(
+                      image: AssetImage("assets/images/server.png"),
+                    ),
+                  ),
+                  height: 200,
+                ),
+                SizedBox(
+                  height: 30,
+                ),
+                TextField(
+                  controller: this._hostController,
+                  decoration: InputDecoration(
+                    labelText: "Host",
+                    border: OutlineInputBorder(),
+                  ),
+                ),
+                FlatButton(
+                  onPressed: () {
+                    this._settingBloc.setSetting(
+                          new SettingModel(this._hostController.text),
+                        );
+                  },
+                  child: Text("Save"),
+                )
+              ],
+            ),
+            width: 200,
+            height: 400,
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/page/startup.dart

@@ -0,0 +1,65 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:geo_app/bloc/setting.dart';
+import 'package:geo_app/component/loader.dart';
+import 'package:geo_app/page/setting.dart';
+import 'package:geo_app/page/map.dart';
+
+class Startup extends StatefulWidget {
+  @override
+  State createState() {
+    return new _StartupState();
+  }
+}
+
+class _StartupState extends State<Startup> {
+  SettingBloc _settingBloc;
+
+  @override
+  void initState() {
+    _settingBloc = new SettingBloc();
+
+    _settingBloc.getSetting();
+
+    _settingBloc.subject.listen((settingModel) {
+      if ((settingModel.host == "" || settingModel.host == null) &&
+          (settingModel.id == "" || settingModel.id == null)) {
+        Navigator.of(context).pushReplacement(new MaterialPageRoute(
+          builder: (BuildContext context) => Setting(),
+        ));
+      } else {
+        Navigator.of(context).pushReplacement(new MaterialPageRoute(
+          builder: (BuildContext context) => Map(),
+        ));
+      }
+    });
+
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Center(
+        child: Container(
+          child: Column(
+            children: <Widget>[
+              Loader(),
+              SizedBox(
+                height: 20.0,
+              ),
+              Text("Preparing System")
+            ],
+          ),
+          height: 50,
+        ),
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _settingBloc.dispose();
+    super.dispose();
+  }
+}

lib/provider/position_provider.dart

@@ -0,0 +1,44 @@
+import 'package:dio/dio.dart';
+import 'package:geo_app/model/position.dart';
+import 'package:geo_app/model/response.dart';
+import 'package:geo_app/model/setting.dart';
+
+class PositionProvider {
+  final Dio _dio = Dio();
+  SettingModel _settingModel;
+
+  PositionProvider(this._settingModel);
+
+  Future<ResponseModel> sendPosition(String lat, String lng) async {
+    Position position = new Position(
+      id: this._settingModel.id,
+      type: "user",
+      lat: lat,
+      lng: lng,
+    );
+    try {
+      Response response = await _dio.post(
+        this._settingModel.host + "/point/set",
+        data: position.toJson(),
+      );
+      return ResponseModel.fromJson(response.data);
+    } on DioError catch (e) {
+      return ResponseModel.fromJson(e.response.data);
+    }
+  }
+
+  Future<ResponseModel> stopTracking() async {
+    try {
+      Response response = await _dio.post(
+        this._settingModel.host + "/point/unset",
+        data: {
+          "id": this._settingModel.id,
+          "type": "user",
+        },
+      );
+      return ResponseModel.fromJson(response.data);
+    } on DioError catch (e) {
+      return ResponseModel.fromJson(e.response.data);
+    }
+  }
+}

lib/provider/unique_id_provider.dart

@@ -0,0 +1,22 @@
+import 'package:dio/dio.dart';
+import 'package:geo_app/model/setting.dart';
+import 'package:geo_app/model/unique_id_model.dart';
+
+class UniqueIDProvider {
+  final String _endpoint = "/id/get/unique";
+  final Dio _dio = Dio();
+  SettingModel _settingModel;
+
+  UniqueIDProvider(this._settingModel);
+
+  Future<UniqueIDModel> getUniqueID() async {
+    try {
+      Response response = await _dio.get(
+        this._settingModel.host + _endpoint,
+      );
+      return UniqueIDModel.fromJson(response.data);
+    } on DioError catch (e) {
+      return UniqueIDModel.error();
+    }
+  }
+}

lib/repository/position_repository.dart

@@ -0,0 +1,20 @@
+import 'package:geo_app/model/response.dart';
+import 'package:geo_app/model/setting.dart';
+import 'package:geo_app/provider/position_provider.dart';
+
+class PositionRepository {
+  PositionProvider _provider;
+  SettingModel _settingModel;
+
+  PositionRepository(this._settingModel) {
+    this._provider = PositionProvider(this._settingModel);
+  }
+
+  Future<ResponseModel> sendPosition(String lat, String lng) {
+    return this._provider.sendPosition(lat, lng);
+  }
+
+  Future<ResponseModel> stopTracking() {
+    return this._provider.stopTracking();
+  }
+}

lib/repository/unique_id_repository.dart

@@ -0,0 +1,16 @@
+import 'package:geo_app/model/setting.dart';
+import 'package:geo_app/provider/unique_id_provider.dart';
+import 'package:geo_app/model/unique_id_model.dart';
+
+class UniqueIDRepository {
+  UniqueIDProvider _uniqueIDProvider;
+  SettingModel _settingModel;
+
+  UniqueIDRepository(this._settingModel) {
+    this._uniqueIDProvider = UniqueIDProvider(this._settingModel);
+  }
+
+  Future<UniqueIDModel> getUniqueID() {
+    return this._uniqueIDProvider.getUniqueID();
+  }
+}

pubspec.lock

@@ -15,6 +15,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.38.5"
+  archive:
+    dependency: transitive
+    description:
+      name: archive
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.11"
   args:
     dependency: transitive
     description:
@@ -28,14 +35,21 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.3.0"
+    version: "2.4.0"
+  background_fetch:
+    dependency: transitive
+    description:
+      name: background_fetch
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.2"
   background_location:
     dependency: "direct main"
     description:
       name: background_location
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.7"
+    version: "0.0.9+1"
   boolean_selector:
     dependency: transitive
     description:
@@ -49,7 +63,7 @@ packages:
       name: build
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.1"
+    version: "1.2.2"
   build_config:
     dependency: transitive
     description:
@@ -105,7 +119,7 @@ packages:
       name: cupertino_icons
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.2"
+    version: "0.1.3"
   dart_style:
     dependency: transitive
     description:
@@ -113,16 +127,35 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.3"
+  dio:
+    dependency: "direct main"
+    description:
+      name: dio
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.7"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_background_geolocation:
+    dependency: "direct main"
+    description:
+      name: flutter_background_geolocation
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.5"
   flutter_test:
     dependency: "direct dev"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   front_end:
     dependency: transitive
     description:
@@ -143,7 +176,7 @@ packages:
       name: google_maps_flutter
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.5.21+8"
+    version: "0.5.21+15"
   html:
     dependency: transitive
     description:
@@ -165,6 +198,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.3"
+  image:
+    dependency: transitive
+    description:
+      name: image
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.4"
   js:
     dependency: transitive
     description:
@@ -206,14 +246,14 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.5"
+    version: "0.12.6"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.7"
+    version: "1.1.8"
   node_interop:
     dependency: transitive
     description:
@@ -255,7 +295,14 @@ packages:
       name: permission_handler
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.3.0"
+    version: "4.0.0"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.0"
   pub_semver:
     dependency: transitive
     description:
@@ -277,13 +324,41 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.5"
+  rxdart:
+    dependency: "direct main"
+    description:
+      name: rxdart
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.23.1"
   shared_preferences:
     dependency: "direct main"
     description:
       name: shared_preferences
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.5.4+3"
+    version: "0.5.6"
+  shared_preferences_macos:
+    dependency: transitive
+    description:
+      name: shared_preferences_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1+3"
+  shared_preferences_platform_interface:
+    dependency: transitive
+    description:
+      name: shared_preferences_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  shared_preferences_web:
+    dependency: transitive
+    description:
+      name: shared_preferences_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.2+2"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -337,7 +412,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.5"
+    version: "0.2.11"
   typed_data:
     dependency: transitive
     description:
@@ -358,7 +433,14 @@ packages:
       name: watcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.7+12"
+    version: "0.9.7+13"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.5.0"
   yaml:
     dependency: transitive
     description:
@@ -367,5 +449,5 @@ packages:
     source: hosted
     version: "2.2.0"
 sdks:
-  dart: ">=2.3.0 <3.0.0"
-  flutter: ">=1.6.7 <2.0.0"
+  dart: ">=2.6.0 <3.0.0"
+  flutter: ">=1.12.13+hotfix.4 <2.0.0"

pubspec.yaml

@@ -24,11 +24,14 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^0.1.2
   google_maps_flutter: ^0.5.21+8
-  background_location: ^0.0.7
+  background_location: ^0.0.9+1
   adhara_socket_io: ^0.4.1
   http: ^0.12.0+2
   json_serializable: ^3.2.3
   shared_preferences: ^0.5.4+3
+  rxdart: ^0.23.1
+  dio: ^3.0.7
+  flutter_background_geolocation: ^1.4.5
 
 dev_dependencies:
   flutter_test:
@@ -47,9 +50,8 @@ flutter:
   uses-material-design: true
 
   # To add assets to your application, add an assets section, like this:
-  # assets:
-  #  - images/a_dot_burr.jpeg
-  #  - images/a_dot_ham.jpeg
+  assets:
+    - assets/images/server.png
 
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/assets-and-images/#resolution-aware.