logout works properly

lib/common/apifunctions/request_logout_api.dart

@@ -1,13 +1,13 @@
 import 'dart:async';
 import 'dart:convert';
 
-import 'package:flutter/material.dart';
 import 'package:http/http.dart' as http;
 import 'package:local_spend/common/functions/get_token.dart';
 import 'package:local_spend/common/functions/save_logout.dart';
-import 'package:local_spend/model/json/login_model.dart';
 
-Future<LoginModel> requestLogoutAPI(BuildContext context) async {
+Future<bool> requestLogoutAPI() async {
+  saveLogout();
+
   final url = "https://dev.localspend.co.uk/api/logout";
 
   var token;
@@ -20,20 +20,10 @@ Future<LoginModel> requestLogoutAPI(BuildContext context) async {
     "Token": token,
   };
 
-  final response = await http.post(
+  await http.post(
     url,
     body: json.encode(body),
   );
 
-  if (response.statusCode == 200) {
-//    debugPrint("Logout successful: " + response.body);
-
-    saveLogout();
-    return null;
-  } else {
-//    debugPrint("Logout unsuccessful: " + response.body);
-
-    saveLogout();
-    return null;
-  }
+  return true;
 }

lib/common/functions/logout.dart

@@ -1,17 +1,18 @@
 import 'package:flutter/material.dart';
 import 'package:local_spend/common/apifunctions/request_logout_api.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:local_spend/common/functions/save_logout.dart';
 
 void logout(context) {
-  requestLogoutAPI(context);
+  _clearLoginDetails().then((_) {
+    requestLogoutAPI();
     Navigator.of(context).pushReplacementNamed('/LoginPage');
-  _clearLoginDetails();
+  });
 }
 
-void _clearLoginDetails() async {
+Future<void> _clearLoginDetails() async {
   SharedPreferences preferences = await SharedPreferences.getInstance();
 
   await preferences.setString('username', "");
   await preferences.setString('password', "");
-  print("details cleared");
 }

lib/common/functions/save_logout.dart

@@ -6,6 +6,4 @@ void saveLogout() async {
   await preferences.setString('LastUser', "");
   await preferences.setString('LastToken', "");
   await preferences.setString('LastEmail', "");
-  await preferences.setString('username', "");
-  await preferences.setString('password', "");
 }

lib/pages/receipt_page_2.dart

@@ -112,6 +112,7 @@ class ReceiptPage2State extends State<ReceiptPage2> {
       _categories.add("Fetching categories...");
       _futureCats.then((value) {
         _categories = value;
+        _categories.insert(0, "Uncategorised");
         setState(() {});
       });
     }
@@ -406,8 +407,7 @@ class ReceiptPage2State extends State<ReceiptPage2> {
                                 height: MediaQuery.of(context)
                                         .copyWith()
                                         .size
-                                        .height /
-                                    3,
+                                        .height / 3,
                                 child: CupertinoPicker(
                                   backgroundColor: Colors.white,
                                   children: _categories