fix issues in login

lib/providers/auth_provider.dart

@@ -1,4 +1,6 @@
 import 'package:doctor_app_flutter/client/base_app_client.dart';
+import 'package:doctor_app_flutter/config/shared_pref_kay.dart';
+import 'package:doctor_app_flutter/util/dr_app_shared_pref.dart';
 import 'package:flutter/cupertino.dart';
 
 import '../models/user_model.dart';
@@ -14,8 +16,41 @@ const SEND_ACTIVATION_CODE_BY_OTP_NOTIFICATION_TYPE =
 const MEMBER_CHECK_ACTIVATION_CODE_NEW =
     'Sentry.svc/REST/MemberCheckActivationCode_New';
 const GET_DOC_PROFILES = 'Doctors.svc/REST/GetDocProfiles';
+DrAppSharedPreferances sharedPref = new DrAppSharedPreferances();
+enum APP_STATUS { LOADING, UNAUTHENTICATED, AUTHENTICATED }
+
 
 class AuthProvider with ChangeNotifier {
+
+  bool isLogin= false;
+  bool isLoading = true;
+  AuthProvider(){
+    getUserAuthentication();
+  }
+
+  void getUserAuthentication() async{
+    Map profile = await sharedPref.getObj(DOCTOR_PROFILE);
+    if(profile !=  null)
+      {
+        isLoading = false;
+        isLogin = true;
+      } else {
+        isLoading = false;
+        isLogin = false;
+    }
+    notifyListeners();
+  }
+  APP_STATUS get stutas {
+    if (isLoading) {
+      return APP_STATUS.LOADING;
+    } else{
+      if ( this.isLogin) {
+        return APP_STATUS.AUTHENTICATED;
+      } else  {
+        return APP_STATUS.UNAUTHENTICATED;
+      }
+    }
+  }
   Future<dynamic> login(UserModel userInfo) async {
     try {
       dynamic localRes;
@@ -131,4 +166,6 @@ class AuthProvider with ChangeNotifier {
       throw error;
     }
   }
+
+
 }

lib/root_page.dart

@@ -0,0 +1,38 @@
+import 'package:doctor_app_flutter/providers/auth_provider.dart';
+import 'package:doctor_app_flutter/screens/auth/login_screen.dart';
+import 'package:doctor_app_flutter/widgets/shared/dr_app_circular_progress_Indeicator.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import 'landing_page.dart';
+
+class RootPage extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    AuthProvider authProvider = Provider.of(context);
+
+    Widget buildRoot() {
+      switch (authProvider.stutas) {
+        case APP_STATUS.LOADING:
+          return Scaffold(
+            body: Center(
+              child: DrAppCircularProgressIndeicator(),
+            ),
+          );
+          break;
+        case APP_STATUS.UNAUTHENTICATED:
+          return Loginsreen();
+          break;
+        case APP_STATUS.AUTHENTICATED:
+          return LandingPage();
+          break;
+      }
+    }
+
+    return AnimatedSwitcher(
+      duration: Duration(microseconds: 350),
+      child: buildRoot(),
+    );
+  }
+}

lib/routes.dart

@@ -1,5 +1,6 @@
 
 import 'package:doctor_app_flutter/config/config.dart';
+import 'package:doctor_app_flutter/root_page.dart';
 import 'package:doctor_app_flutter/screens/patients/profile/insurance_approvals_screen.dart';
 import 'package:doctor_app_flutter/screens/patients/profile/patient_orders_screen.dart';
 import 'package:doctor_app_flutter/screens/patients/profile/progress_note_screen.dart';
@@ -38,7 +39,8 @@ import './screens/settings/settings_screen.dart';
 import 'landing_page.dart';
 import 'screens/doctor/doctor_reply_screen.dart';
 
-const String INIT_ROUTE = LOGIN;
+const String INIT_ROUTE = ROOT;
+const String ROOT = 'root';
 const String HOME = '/';
 const String LOGIN = 'login';
 const String PROFILE = 'profile';
@@ -71,6 +73,7 @@ const String BODY_MEASUREMENTS = 'patients/body-measurements';
 const String IN_PATIENT_PRESCRIPTIONS_DETAILS = 'patients/prescription-details';
 
 var routes = {
+  ROOT: (_) => RootPage(),
   HOME: (_) => LandingPage(),
   LOGIN: (_) => Loginsreen(),
   PROFILE: (_) => ProfileScreen(),

lib/util/helpers.dart

@@ -335,7 +335,7 @@ class Helpers {
     return localMsg;
   }
 
-  clearSharedPref() async {
+  static clearSharedPref() async {
     await sharedPref.clear();
   }
 

lib/widgets/shared/app_drawer_widget.dart

@@ -1,3 +1,4 @@
+import 'package:doctor_app_flutter/util/helpers.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
@@ -105,7 +106,8 @@ class _AppDrawerState extends State<AppDrawer> {
           ),
           InkWell(
             child: DrawerItem("lOGOUT", Icons.exit_to_app),
-            onTap: () {
+            onTap: () async {
+              await Helpers.clearSharedPref();
               Navigator.pop(context);
               Navigator.of(context).pushNamed(LOGIN);
             },