diff --git a/lib/main.dart b/lib/main.dart
index 00ac518..70704b9 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,16 +1,32 @@
-import 'package:astronote_app/screens/sign_in_screen.dart';
+import 'package:astronote_app/screens/company_choice_screen.dart';
+import 'package:astronote_app/screens/dashboard_screen.dart';
+import 'package:astronote_app/screens/log_in_screen.dart';
+import 'package:astronote_app/providers/log_in.dart';
+import 'package:astronote_app/theme/style.dart';
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 
 void main() => runApp(MyApp());
 
 class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-        theme: ThemeData(
-          fontFamily: 'Varela Round',
-        ),
-        home: LoginScreen()
+    return MultiProvider(
+      providers: [
+        ChangeNotifierProvider.value(value: LogIn()),
+       ],
+      child: Consumer<LogIn>(
+        builder:(context, logIn, _) => MaterialApp(
+            debugShowCheckedModeBanner: false,
+            theme: appTheme(),
+            home: logIn.isLog ? CompanyChoiceScreen() : LogInScreen(),
+            routes: {
+              "/logInScreen": (context) => LogInScreen(),
+              "/companyChoiceScreen": (context) => CompanyChoiceScreen(),
+              "/dashboardScreen": (context) => DashBoardScreen()
+            },
+          ),
+      ),
     );
   }
 }
diff --git a/lib/models/companie.dart b/lib/models/companie.dart
new file mode 100644
index 0000000..f99b079
--- /dev/null
+++ b/lib/models/companie.dart
@@ -0,0 +1,23 @@
+class Companie {
+  int id;
+  String name;
+
+  Companie({this.id, this.name});
+
+  Companie.fromJson(Map<String, dynamic> json) {
+    id = json['id'];
+    name = json['name'];
+  }
+
+//  Map<String, dynamic> toJson() {
+//    final Map<String, dynamic> data = new Map<String, dynamic>();
+//    data['id'] = this.id;
+//    data['name'] = this.name;
+//    return data;
+//  }
+
+  @override
+  String toString() {
+    return 'Companie{name: $name}';
+  }
+}
\ No newline at end of file
diff --git a/lib/models/companies.dart b/lib/models/companies.dart
deleted file mode 100644
index 413e489..0000000
--- a/lib/models/companies.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-class Companies {
-  int id;
-  String name;
-
-  Companies({this.id, this.name});
-
-  Companies.fromJson(Map<String, dynamic> json) {
-    id = json['id'];
-    name = json['name'];
-  }
-
-  Map<String, dynamic> toJson() {
-    final Map<String, dynamic> data = new Map<String, dynamic>();
-    data['id'] = this.id;
-    data['name'] = this.name;
-    return data;
-  }
-}
\ No newline at end of file
diff --git a/lib/models/credential.dart b/lib/models/credential.dart
new file mode 100644
index 0000000..ac61384
--- /dev/null
+++ b/lib/models/credential.dart
@@ -0,0 +1,15 @@
+import 'package:flutter/foundation.dart';
+
+class Credential {
+  int userId;
+  String url;
+  String login;
+  String password;
+
+  Credential({this.url,this.login,this.password,this.userId});
+
+  @override
+  String toString() {
+    return 'UserLogIn{url: $url, login: $login}';
+  }
+}
\ No newline at end of file
diff --git a/lib/models/datas.dart b/lib/models/datas.dart
deleted file mode 100644
index b8608d3..0000000
--- a/lib/models/datas.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-import 'package:astronote_app/models/companies.dart';
-
-class Datas {
-  String lastname;
-  List<Companies> companies;
-  String firstname;
-  String civilite;
-
-  Datas({this.lastname, this.companies, this.firstname, this.civilite});
-
-  Datas.fromJson(Map<String, dynamic> json) {
-    lastname = json['lastname'];
-    if (json['companies'] != null) {
-      companies = new List<Companies>();
-      json['companies'].forEach((v) {
-        companies.add(new Companies.fromJson(v));
-      });
-    }
-    firstname = json['firstname'];
-    civilite = json['civilite'];
-  }
-
-  Map<String, dynamic> toJson() {
-    final Map<String, dynamic> data = new Map<String, dynamic>();
-    data['lastname'] = this.lastname;
-    if (this.companies != null) {
-      data['companies'] = this.companies.map((v) => v.toJson()).toList();
-    }
-    data['firstname'] = this.firstname;
-    data['civilite'] = this.civilite;
-    return data;
-  }
-}
\ No newline at end of file
diff --git a/lib/models/sign_in_api.dart b/lib/models/sign_in_api.dart
deleted file mode 100644
index 594a07b..0000000
--- a/lib/models/sign_in_api.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-import 'package:astronote_app/models/datas.dart';
-
-class Api {
-  String status;
-  String api;
-  String id;
-  Datas datas;
-
-  Api ({this.status, this.api, this.id, this.datas});
-
-  Api.fromJson(Map<String, dynamic> json) {
-    status = json['status'];
-    api = json['api'];
-    id = json['id'];
-    datas = json['datas'] != null ? new Datas.fromJson(json['datas']) : null;
-  }
-
-  Map<String, dynamic> toJson() {
-    final Map<String, dynamic> data = new Map<String, dynamic>();
-    data['status'] = this.status;
-    data['api'] = this.api;
-    data['id'] = this.id;
-    if (this.datas != null) {
-      data['datas'] = this.datas.toJson();
-    }
-    return data;
-  }
-}
\ No newline at end of file
diff --git a/lib/models/user_datas.dart b/lib/models/user_datas.dart
new file mode 100644
index 0000000..caa93c6
--- /dev/null
+++ b/lib/models/user_datas.dart
@@ -0,0 +1,41 @@
+import 'package:astronote_app/models/companie.dart';
+
+class User {
+  String lastname;
+  List<Companie> companies;
+  String firstname;
+  String civilite;
+
+  User({this.lastname, this.companies, this.firstname, this.civilite});
+
+
+  User.fromJson(Map<String, dynamic> json) {
+    lastname = json['lastname'];
+    if (json['companies'] != null) {
+      companies = new List<Companie>();
+      json['companies'].forEach((v) {
+        companies.add(new Companie.fromJson(v));
+      });
+    }
+    firstname = json['firstname'];
+    civilite = json['civilite'];
+  }
+
+//  Map<String, dynamic> toJson() {
+//    final Map<String, dynamic> data = new Map<String, dynamic>();
+//    data['lastname'] = this.lastname;
+//    if (this.companies != null) {
+//      data['companies'] = this.companies.map((v) => v.toJson()).toList();
+//    }
+//    data['firstname'] = this.firstname;
+//    data['civilite'] = this.civilite;
+//    return data;
+//  }
+
+
+
+  @override
+  String toString() {
+    return 'User{lastname: $lastname, companies: $companies, firstname: $firstname, civilite: $civilite}';
+  }
+}
\ No newline at end of file
diff --git a/lib/providers/log_in.dart b/lib/providers/log_in.dart
new file mode 100644
index 0000000..2375857
--- /dev/null
+++ b/lib/providers/log_in.dart
@@ -0,0 +1,89 @@
+import 'dart:convert';
+import 'package:path/path.dart';
+import 'package:sqflite/sqflite.dart';
+import 'package:astronote_app/models/user_datas.dart';
+import 'package:astronote_app/models/credential.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+import 'package:http/http.dart' as http;
+
+class LogIn with ChangeNotifier {
+  String _cookie;
+  Credential _userCredentials;
+
+  bool get isLog {
+    return token != null;
+  }
+
+  String get token {
+    if (_cookie != null) {
+      return _cookie;
+    }
+    return null;
+  }
+
+  Future<void> logIn(String url, String login, String password) async {
+    String urlApi = url + '/api/v1/login';
+
+    Map<String, String> headers = {
+      "X-Requested-With": "XMLHttpRequest",
+      "Content-Type": "application/json",
+    };
+    var body = json.encode({"login": login, "password": password});
+
+    final response = await http.post(urlApi, headers: headers, body: body);
+    if (response.statusCode == 200) {
+      // If the server did return a 20 0 OK response,
+      _cookie = response.headers['set-cookie'];
+      _userCredentials = new Credential(url: url, login: login, password: password);
+      print(_userCredentials.toString());
+//      await OpenLocalBdd();
+      return recoverUserDatas(urlApi);
+    } else{
+      _cookie = null;
+      _userCredentials = null;
+    }
+    notifyListeners();
+  }
+
+  Future<void> recoverUserDatas(String url) async {
+    Map<String, String> headers = {
+      "X-Requested-With": "XMLHttpRequest",
+      "Cookie": _cookie
+    };
+
+    final response = await http.get(url, headers: headers);
+
+    if (response.statusCode == 200) {
+      // If the server did return a 200 OK response then parse the JSON.
+      final responseJson = json.decode(response.body);
+
+      User userDatas = new User.fromJson(responseJson['datas']);
+      print(userDatas.companies[0].toString());
+    }
+  }
+
+//  Future<Database> OpenLocalBdd() async {
+//    // Open the database and store the reference.
+//    final Future<Database> database = openDatabase(
+//      // Set the path to the database. Note: Using the `join` function from the
+//      // `path` package is best practice to ensure the path is correctly
+//      // constructed for each platform.
+//        join(await getDatabasesPath(), 'astronote_database.db'),
+//      onCreate: (db, version) {
+//        // Run the CREATE TABLE statement on the database.
+//        return db.execute(
+//          "CREATE TABLE credentials(id INTEGER PRIMARY KEY, name TEXT, age INTEGER)",
+//        );
+//      },
+//      // Set the version. This executes the onCreate function and provides a
+//      // path to perform database upgrades and downgrades.
+//      version: 1,
+//
+//    );
+//    print(await getDatabasesPath());
+//  await database;
+//  }
+
+
+}
diff --git a/lib/providers/sign_in.dart b/lib/providers/sign_in.dart
deleted file mode 100644
index 2c81a03..0000000
--- a/lib/providers/sign_in.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-import 'dart:convert';
-
-import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
-import 'package:http/http.dart' as http;
-
-class SignIn with ChangeNotifier {
-  String cookie;
-
-  Future<void> login(String url, String email, String password) async {
-    String urlApi = url + '/api/v1/login';
-
-    Map<String, String> headers = {
-      "X-Requested-With": "XMLHttpRequest",
-      "Content-Type": "application/json",
-    };
-    var body = json.encode({"login": email, "password": password});
-
-    final response = await http.post(urlApi, headers: headers, body: body);
-    if (response.statusCode == 200) {
-      // If the server did return a 200 OK response,
-      // then parse the JSON.
-      print(response.headers['set-cookie']);
-      cookie = response.headers['set-cookie'];
-      //TODO : return http.get + company_choice_screen root
-      recoverUserData(urlApi);
-      // If the server did not return a 200 OK response,
-      // then throw an exception.
-      //TODO: error message ?
-    }
-
-//    final responseJson = json.decode(response.body);
-  }
-
-  Future<void> recoverUserData(String url) async {
-    Map<String, String> headers = {"X-Requested-With": "XMLHttpRequest","Cookie":cookie};
-
-    final response = await http.get(url, headers: headers);
-
-    if (response.statusCode == 200) {
-      // If the server did return a 200 OK response,
-      // then parse the JSON.
-      print(response.headers['datas']);
-    } else {
-      // If the server did not return a 200 OK response,
-      // then throw an exception.
-    }
-//    final responseJson = json.decode(response.body);
-//
-//    print(responseJson);
-  }
-}
diff --git a/lib/screens/company_choice_screen.dart b/lib/screens/company_choice_screen.dart
index e69de29..164c940 100644
--- a/lib/screens/company_choice_screen.dart
+++ b/lib/screens/company_choice_screen.dart
@@ -0,0 +1,46 @@
+import 'package:flutter/material.dart';
+import 'package:astronote_app/models/companie.dart';
+
+class CompanyChoiceScreen extends StatefulWidget {
+  @override
+  _CompanyChoiceScreenState createState() => _CompanyChoiceScreenState();
+}
+
+class _CompanyChoiceScreenState extends State<CompanyChoiceScreen> {
+  Companie companies = new Companie();
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Container(
+        margin: EdgeInsets.only(
+            top: MediaQuery.of(context).size.height * 0.09,
+            bottom: MediaQuery.of(context).size.height * 0.05),
+        padding: EdgeInsets.only(
+            left: MediaQuery.of(context).size.height * 0.05,
+            right: MediaQuery.of(context).size.height * 0.05),
+        child: Column(
+          children: <Widget>[
+            Text("Bonjour !", style: Theme.of(context).textTheme.headline1),
+            SizedBox(height: MediaQuery.of(context).size.height * 0.08),
+            Text("Pour quelle enseigne souhaitez-vous gérer vos notes de dépenses ?", style: Theme.of(context).textTheme.headline2,textAlign: TextAlign.center),
+            SizedBox(height: MediaQuery.of(context).size.height * 0.07),
+            ButtonTheme.fromButtonThemeData(
+              data: Theme.of(context).buttonTheme,
+              child: RaisedButton(
+                elevation: 3.0,
+                onPressed: () {
+                  Navigator.pushNamed(context, '/dashboardScreen');
+                },
+
+                child: Text("C'est parti !",
+                    textAlign: TextAlign.center,
+                    style: Theme.of(context).textTheme.button),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
diff --git a/lib/screens/dashboard_screen.dart b/lib/screens/dashboard_screen.dart
index e69de29..2f7b988 100644
--- a/lib/screens/dashboard_screen.dart
+++ b/lib/screens/dashboard_screen.dart
@@ -0,0 +1,59 @@
+import 'package:flutter/material.dart';
+
+class DashBoardScreen extends StatefulWidget {
+  @override
+  _DashBoardScreenState createState() => _DashBoardScreenState();
+}
+
+class _DashBoardScreenState extends State<DashBoardScreen> {
+  int _selectedIndex = 0;
+  static const TextStyle optionStyle = TextStyle(fontSize: 30, fontWeight: FontWeight.bold);
+  static const List<Widget> _widgetOptions = <Widget>[
+    Text(
+      'Index 0: Accueil',
+      style: optionStyle,
+    ),
+    Text(
+      'Index 1: Notes',
+      style: optionStyle,
+    ),
+    Text(
+      'Index 2: Enseignes',
+      style: optionStyle,
+    ),
+  ];
+
+  void _onItemTapped(int index) {
+    setState(() {
+      _selectedIndex = index;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Center(
+        child: _widgetOptions.elementAt(_selectedIndex),
+      ),
+      bottomNavigationBar: BottomNavigationBar(
+        items: const <BottomNavigationBarItem>[
+          BottomNavigationBarItem(
+            icon: Icon(Icons.home),
+            title: Text('Accueil'),
+          ),
+          BottomNavigationBarItem(
+            icon: Icon(Icons.add),
+            title: Text('Notes'),
+          ),
+          BottomNavigationBarItem(
+            icon: Icon(Icons.business),
+            title: Text('Enseignes'),
+          ),
+        ],
+        currentIndex: _selectedIndex,
+        selectedItemColor: Colors.indigo[900],
+        onTap: _onItemTapped,
+      ),
+    );
+  }
+}
diff --git a/lib/screens/log_in_screen.dart b/lib/screens/log_in_screen.dart
new file mode 100644
index 0000000..211310f
--- /dev/null
+++ b/lib/screens/log_in_screen.dart
@@ -0,0 +1,186 @@
+import 'package:astronote_app/providers/log_in.dart';
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+class LogInScreen extends StatefulWidget {
+//  static const routeName = '/logInScreen';
+
+  @override
+  _LogInScreenState createState() => _LogInScreenState();
+}
+
+class _LogInScreenState extends State<LogInScreen> {
+
+  var _obscurePassword = true;
+  var _isLoading = false;
+
+  final urlEndi = "https://endi.coop";
+  final urlAstrolabe = "https://astrolabe.coop";
+
+  final GlobalKey<FormState> _formKey = GlobalKey();
+  final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>();
+
+  final TextEditingController urlController = new TextEditingController();
+  final TextEditingController loginController = new TextEditingController();
+  final TextEditingController passwordController = new TextEditingController();
+
+  Future<void> _submit() async {
+    if (!_formKey.currentState.validate()) {
+      // Invalid!
+      return;
+    }
+    _formKey.currentState.save();
+
+    try {
+      setState(() {
+        _isLoading = true;
+      });
+      await Provider.of<LogIn>(context, listen: false).logIn(
+          urlController.text, loginController.text, passwordController.text);
+      if(Provider.of<LogIn>(context, listen: false).isLog){
+        Navigator.pushNamed(context, '/companyChoiceScreen');
+      }
+    } catch (Exception) {
+      setState(() {
+        _isLoading = false;
+      });
+      _scaffoldKey.currentState.showSnackBar(SnackBar(
+        backgroundColor: Colors.red[300],
+        duration: Duration(seconds: 3),
+        content: Row(
+          children: <Widget>[
+            Icon(Icons.error_outline),
+            Text('  Les données ne sont pas correctes'),
+          ],
+        ),
+      ));
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final TextStyle style = Theme.of(context).textTheme.bodyText1;
+
+    return Scaffold(
+      key: _scaffoldKey,
+      body: Container(
+        height: MediaQuery.of(context).size.height,
+        width: MediaQuery.of(context).size.width,
+        padding: EdgeInsets.only(
+            top: MediaQuery.of(context).size.height * 0.04,
+            left: MediaQuery.of(context).size.height * 0.07,
+            right: MediaQuery.of(context).size.height * 0.07),
+        child: SingleChildScrollView(
+          child: Column(
+            children: <Widget>[
+              Image.asset(
+                "assets/astrolabe_logo.jpg",
+              ),
+              SizedBox(height: MediaQuery.of(context).size.height * 0.01),
+              Text("AstroNotes", style: style.copyWith(fontSize: 36.0)),
+              SizedBox(height: MediaQuery.of(context).size.height * 0.08),
+              Form(
+                key: _formKey,
+                child: Column(
+                  children: <Widget>[
+                    TextFormField(
+                      controller: urlController,
+                      style: style,
+                      keyboardType: TextInputType.url,
+                      decoration: InputDecoration(
+                          contentPadding:
+                              EdgeInsets.fromLTRB(20.0, 15.0, 0.0, 15.0),
+                          labelText: "Lien enDI",
+                          suffixIcon:
+                              Icon(Icons.link, color: Colors.indigo[900]),
+                          border: OutlineInputBorder(
+                              borderRadius: BorderRadius.circular(32.0))),
+                    ),
+                    SizedBox(height: MediaQuery.of(context).size.height * 0.03),
+                    TextFormField(
+                      controller: loginController,
+                      style: style,
+                      keyboardType: TextInputType.emailAddress,
+                      decoration: InputDecoration(
+                          contentPadding:
+                              EdgeInsets.fromLTRB(20.0, 15.0, 0.0, 15.0),
+                          labelText: "E-mail",
+                          suffixIcon:
+                              Icon(Icons.mail, color: Colors.indigo[900]),
+                          border: OutlineInputBorder(
+                              borderRadius: BorderRadius.circular(32.0))),
+                    ),
+                    SizedBox(height: MediaQuery.of(context).size.height * 0.03),
+                    TextFormField(
+                      controller: passwordController,
+                      style: style,
+                      obscureText: _obscurePassword,
+                      decoration: InputDecoration(
+                          contentPadding:
+                              EdgeInsets.fromLTRB(20.0, 15.0, 0.0, 15.0),
+                          labelText: "Mot de passe",
+                          suffixIcon: IconButton(
+                              icon: Icon(
+                                  _obscurePassword
+                                      ? Icons.visibility
+                                      : Icons.visibility_off,
+                                  color: Colors.indigo[900]),
+                              onPressed: () {
+                                setState(
+                                    () => _obscurePassword = !_obscurePassword);
+                              }),
+                          border: OutlineInputBorder(
+                              borderRadius: BorderRadius.circular(32.0))),
+                    ),
+                    SizedBox(height: MediaQuery.of(context).size.height * 0.07),
+                    ButtonTheme.fromButtonThemeData(
+                      data: Theme.of(context).buttonTheme,
+                      child: RaisedButton(
+                        elevation: 3.0,
+                        onPressed: () {
+                          _submit();
+                        },
+                        child: _isLoading
+                            ? CircularProgressIndicator()
+                            : Text("Connexion",
+                                textAlign: TextAlign.center,
+                                style: Theme.of(context).textTheme.button),
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+              SizedBox(height: MediaQuery.of(context).size.height * 0.08),
+              InkWell(
+                onTap: () async {
+                  if (await canLaunch(urlEndi)) {
+                    await launch(urlEndi);
+                  }
+                },
+                child: Text(
+                  "En collaboration avec enDI",
+                  style: style.copyWith(
+                      fontSize: 13.0, decoration: TextDecoration.underline),
+                ),
+              ),
+              SizedBox(height: MediaQuery.of(context).size.height * 0.01),
+              InkWell(
+                onTap: () async {
+                  if (await canLaunch(urlAstrolabe)) {
+                    await launch(urlAstrolabe);
+                  }
+                },
+                child: Text(
+                  "Développé par Astrolabe",
+                  style: style.copyWith(
+                      fontSize: 13, decoration: TextDecoration.underline),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
diff --git a/lib/screens/sign_in_screen.dart b/lib/screens/sign_in_screen.dart
deleted file mode 100644
index a58b4e1..0000000
--- a/lib/screens/sign_in_screen.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-import 'package:flutter/material.dart';
-import 'file:///D:/AndroidStudioProjects/astronote_app/lib/widgets/footer_sign_in_widget.dart';
-
-import 'file:///D:/AndroidStudioProjects/astronote_app/lib/widgets/form_sign_in_widget.dart';
-import 'package:astronote_app/widgets/header_sign__in_widget.dart';
-
-class LoginScreen extends StatefulWidget {
-  @override
-  _LoginScreenState createState() => _LoginScreenState();
-}
-
-class _LoginScreenState extends State<LoginScreen> {
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      body: Container(
-//        width: double.infinity,
-        child: SingleChildScrollView(
-          padding: EdgeInsets.only(
-              left: MediaQuery.of(context).size.height * 0.07,
-              right: MediaQuery.of(context).size.height * 0.07),
-//          scrollDirection: Axis.vertical,
-          child: Column(
-            children: <Widget>[
-              HeaderLogWidget(),
-              SizedBox(height: MediaQuery.of(context).size.height * 0.08),
-              FormLogWidget(),
-              SizedBox(height: MediaQuery.of(context).size.height * 0.08),
-              FooterLogWidget(),
-              SizedBox(height: MediaQuery.of(context).size.height * 0.05),
-            ],
-          ),
-        ),
-      ),
-    );
-  }
-
-//  Widget _enDIUrl() {
-//    return InkWell(
-//      onTap: _enDIUrl,
-//      child: Text(
-//        "En collaboration avec enDI",
-//        style: style.copyWith(
-//            color: Colors.black,
-//            fontSize: 15.0,
-//            decoration: TextDecoration.underline),
-//      ),
-//    );
-//  }
-//
-//  Widget _astrolabeUrl() {
-//    return InkWell(
-//      onTap: _launchLinkAstrolabe,
-//      child: Text(
-//        "Développé par Astrolabe",
-//        style: style.copyWith(
-//            color: Colors.black,
-//            fontSize: 15,
-//            decoration: TextDecoration.underline),
-//      ),
-//    );
-//  }
-//
-//
-//
-//  void launchLinkEnDI() async {
-//    const urlEndi = "hhuh";
-//
-//    if (await canLaunch(urlEndi)) {
-//      await launch(urlEndi);
-//    } else {
-//
-//    }
-//  }
-//
-//  void _launchLinkAstrolabe() async {
-//    const url = "https://astrolabe.coop";
-//
-//    if (await canLaunch(url)) {
-//      await launch(url);
-//    } else {
-//
-//    }
-//  }
-}
diff --git a/lib/theme/style.dart b/lib/theme/style.dart
new file mode 100644
index 0000000..36bedd5
--- /dev/null
+++ b/lib/theme/style.dart
@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+
+ThemeData appTheme() {
+  return ThemeData(
+    scaffoldBackgroundColor: Colors.white,
+    fontFamily: 'Varela Round',
+    textTheme: TextTheme(
+        bodyText1: TextStyle(fontSize: 16.0, color: Colors.black),
+        button: TextStyle(
+            fontSize: 17.0, color: Colors.white, fontWeight: FontWeight.bold),
+        headline1: TextStyle(fontSize: 26.0, color: Colors.black),
+        headline2: TextStyle(fontSize: 21.0, color: Colors.black)),
+    buttonTheme: ButtonThemeData(
+      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(30.0)),
+      padding: EdgeInsets.fromLTRB(20.0, 15.0, 20.0, 15.0),
+      buttonColor: Colors.indigo[900],
+    ),
+  );
+}
diff --git a/lib/widgets/footer_sign_in_widget.dart b/lib/widgets/footer_sign_in_widget.dart
deleted file mode 100644
index 8c6b887..0000000
--- a/lib/widgets/footer_sign_in_widget.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:url_launcher/url_launcher.dart';
-
-class FooterLogWidget extends StatelessWidget {
-  final TextStyle style = TextStyle(fontFamily: 'Varela Round', fontSize: 20.0);
-
-
-  @override
-  Widget build(BuildContext context) {
-     return Center(
-        child: Column(
-          children: <Widget>[
-          _enDIUrl(),
-            SizedBox(height: 5),
-            _astrolabeUrl()
-          ],
-        ),
-    );
-  }
-
-  Widget _enDIUrl() {
-    return InkWell(
-      onTap: _launchLinkEnDI,
-      child: Text(
-        "En collaboration avec enDI",
-        style: style.copyWith(
-            color: Colors.black,
-            fontSize: 15.0,
-            decoration: TextDecoration.underline),
-      ),
-    );
-  }
-
-  Widget _astrolabeUrl() {
-    return InkWell(
-      onTap: _launchLinkAstrolabe,
-      child: Text(
-        "Développé par Astrolabe",
-        style: style.copyWith(
-            color: Colors.black,
-            fontSize: 15,
-            decoration: TextDecoration.underline),
-      ),
-    );
-  }
-
-  void _launchLinkEnDI() async {
-    const urlEndi = "https://endi.coop";
-
-    if (await canLaunch(urlEndi)) {
-      await launch(urlEndi);
-    } else {
-     //TODO : error message
-    }
-  }
-
-  void _launchLinkAstrolabe() async {
-    const url = "https://astrolabe.coop";
-
-    if (await canLaunch(url)) {
-      await launch(url);
-    } else {
-      //TODO : error message
-    }
-  }
-}
diff --git a/lib/widgets/form_sign_in_widget.dart b/lib/widgets/form_sign_in_widget.dart
deleted file mode 100644
index 2ff2e79..0000000
--- a/lib/widgets/form_sign_in_widget.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-import 'package:flutter/material.dart';
-
-import 'package:flutter/widgets.dart';
-import 'package:astronote_app/providers/sign_in.dart';
-
-class FormLogWidget extends StatefulWidget {
-  @override
-  _FormLogWidgetState createState() => _FormLogWidgetState();
-}
-
-class _FormLogWidgetState extends State<FormLogWidget> {
-  TextStyle style = TextStyle(fontFamily: 'Varela Round', fontSize: 20.0);
-
-  bool _obscurePassword = true;
-  final GlobalKey<FormState> _formKey = GlobalKey();
-  bool _isLoading = false;
-
-  TextEditingController urlController = new TextEditingController();
-  TextEditingController emailController = new TextEditingController();
-  TextEditingController passwordController = new TextEditingController();
-
-
-  @override
-  Widget build(BuildContext context) {
-    return Form(
-      key: _formKey,
-      child: Column(
-        children: <Widget>[
-          _urlFormField(),
-          SizedBox(height: MediaQuery.of(context).size.height * 0.03),
-          _emailFormField(),
-          SizedBox(height: MediaQuery.of(context).size.height * 0.03),
-          _passwordFormField(),
-          SizedBox(height: MediaQuery.of(context).size.height * 0.07),
-          _logButton()
-        ],
-      ),
-    );
-  }
-
-  Widget _urlFormField() {
-    return TextFormField(
-      controller: urlController,
-      style: style,
-      keyboardType: TextInputType.url,
-      decoration: InputDecoration(
-          contentPadding: EdgeInsets.fromLTRB(20.0, 15.0, 20.0, 15.0),
-          labelText: "Lien enDI",
-          suffixIcon: Icon(Icons.link,color: Colors.indigo[900]),
-          border:
-              OutlineInputBorder(borderRadius: BorderRadius.circular(32.0))),
-    );
-  }
-
-  Widget _emailFormField() {
-    return TextFormField(
-      controller: emailController,
-      style: style,
-      keyboardType: TextInputType.emailAddress,
-      decoration: InputDecoration(
-          contentPadding: EdgeInsets.fromLTRB(20.0, 15.0, 20.0, 15.0),
-          labelText: "E-mail",
-          suffixIcon: Icon(Icons.mail,color: Colors.indigo[900]),
-          border:
-              OutlineInputBorder(borderRadius: BorderRadius.circular(32.0))),
-    );
-  }
-
-  Widget _passwordFormField() {
-    return TextFormField(
-      controller: passwordController,
-      style: style,
-      obscureText: _obscurePassword,
-      decoration: InputDecoration(
-          contentPadding: EdgeInsets.fromLTRB(20.0, 15.0, 20.0, 15.0),
-          labelText: "Mot de passe",
-          suffixIcon: IconButton(
-              icon: Icon(
-                  _obscurePassword ? Icons.visibility : Icons.visibility_off,color: Colors.indigo[900]),
-              onPressed: () {
-                setState(() => _obscurePassword = !_obscurePassword);
-              }),
-          border:
-              OutlineInputBorder(borderRadius: BorderRadius.circular(32.0))),
-    );
-  }
-
-  Widget _logButton() {
-    return Material(
-        elevation: 3.0,
-        borderRadius: BorderRadius.circular(30.0),
-        color: Colors.indigo[900],
-        child: MaterialButton(
-//        minWidth: MediaQuery.of(context).size.width,
-          padding: EdgeInsets.fromLTRB(20.0, 15.0, 20.0, 15.0),
-          onPressed: () {
-            setState(() {
-              _isLoading = true;
-            });
-            SignIn().login(urlController.text, emailController.text, passwordController.text);
-          },
-          child: Text("Connexion",
-              textAlign: TextAlign.center,
-              style: style.copyWith(
-                  color: Colors.white, fontWeight: FontWeight.bold)),
-        )
-    );
-  }
-}
diff --git a/lib/widgets/header_sign__in_widget.dart b/lib/widgets/header_sign__in_widget.dart
deleted file mode 100644
index 7fe1488..0000000
--- a/lib/widgets/header_sign__in_widget.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-import 'package:flutter/material.dart';
-
-class HeaderLogWidget extends StatelessWidget {
-  final TextStyle style = TextStyle(fontFamily: 'Varela Round', fontSize: 20.0);
-
-  @override
-  Widget build(BuildContext context) {
-    return Center(
-      child: Container(
-        margin: EdgeInsets.only(top: MediaQuery.of(context).size.height * 0.09),
-        child: Column(
-          children: <Widget>[_astrolabeLogo(), SizedBox(height: 5.0), _appTitle(context)],
-        ),
-      ),
-    );
-  }
-
-  Widget _astrolabeLogo() {
-    return Image.asset(
-      "assets/astrolabe_logo.jpg",
-    );
-  }
-
-  Widget _appTitle(BuildContext context) {
-    return Text("AstroNotes",
-        style:
-            style.copyWith(color: Colors.black, fontSize: 40));
-  }
-}
diff --git a/pubspec.lock b/pubspec.lock
index f579648..2007e86 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -64,20 +64,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.3"
-  file:
-    dependency: transitive
-    description:
-      name: file
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "5.2.1"
-  flushbar:
-    dependency: "direct main"
-    description:
-      name: flushbar
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.10.4"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -114,13 +100,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.12"
-  intl:
-    dependency: transitive
-    description:
-      name: intl
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.16.1"
   matcher:
     dependency: transitive
     description:
@@ -143,26 +122,12 @@ packages:
     source: hosted
     version: "0.0.4"
   path:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.6.4"
-  path_provider_linux:
-    dependency: transitive
-    description:
-      name: path_provider_linux
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.1+2"
-  path_provider_platform_interface:
-    dependency: transitive
-    description:
-      name: path_provider_platform_interface
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
   pedantic:
     dependency: transitive
     description:
@@ -177,13 +142,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.4.0"
-  platform:
-    dependency: transitive
-    description:
-      name: platform
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.2.1"
   platform_detect:
     dependency: transitive
     description:
@@ -198,13 +156,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
-  process:
-    dependency: transitive
-    description:
-      name: process
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.13"
   provider:
     dependency: "direct main"
     description:
@@ -226,41 +177,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.3"
-  shared_preferences:
-    dependency: "direct main"
-    description:
-      name: shared_preferences
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.5.8"
-  shared_preferences_linux:
-    dependency: transitive
-    description:
-      name: shared_preferences_linux
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.2+1"
-  shared_preferences_macos:
-    dependency: transitive
-    description:
-      name: shared_preferences_macos
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.1+10"
-  shared_preferences_platform_interface:
-    dependency: transitive
-    description:
-      name: shared_preferences_platform_interface
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.4"
-  shared_preferences_web:
-    dependency: transitive
-    description:
-      name: shared_preferences_web
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.2+7"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -273,6 +189,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
+  sqflite:
+    dependency: "direct main"
+    description:
+      name: sqflite
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.1"
+  sqflite_common:
+    dependency: transitive
+    description:
+      name: sqflite_common
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2+1"
   stack_trace:
     dependency: transitive
     description:
@@ -294,6 +224,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.5"
+  synchronized:
+    dependency: transitive
+    description:
+      name: synchronized
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0+2"
   term_glyph:
     dependency: transitive
     description:
@@ -357,13 +294,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.8"
-  xdg_directories:
-    dependency: transitive
-    description:
-      name: xdg_directories
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.0"
   xml:
     dependency: transitive
     description:
@@ -372,5 +302,5 @@ packages:
     source: hosted
     version: "3.6.1"
 sdks:
-  dart: ">=2.7.2 <3.0.0"
+  dart: ">=2.8.0 <3.0.0"
   flutter: ">=1.16.0 <2.0.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 61212d9..94b0b3d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -24,11 +24,10 @@ dependencies:
   flutter:
     sdk: flutter
   url_launcher: ^5.5.0
-  flushbar: ^1.10.4
   http: ^0.12.2
   provider: ^4.3.1
-  shared_preferences: ^0.5.8
-
+  sqflite:
+  path:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.