update

lib/pages/signin/signin_page.dart

@@ -3,7 +3,6 @@ import 'package:fcs/domain/entities/auth_result.dart';
 import 'package:fcs/domain/entities/auth_status.dart';
 import 'package:fcs/pages/main/model/main_model.dart';
 import 'package:fcs/pages/signin/signin_logic.dart';
-import 'package:fcs/pages/widgets/bottom_up_page_route.dart';
 import 'package:fcs/pages/widgets/local_text.dart';
 import 'package:fcs/pages/widgets/progress.dart';
 import 'package:flutter/cupertino.dart';
@@ -23,9 +22,9 @@ class SigninPage extends StatefulWidget {
 
 class _SigninPageState extends State<SigninPage> {
   bool _isLoading = false;
-  String dialCode;
+  late String dialCode;
 
-  TextEditingController phonenumberCtl;
+  TextEditingController phonenumberCtl = new TextEditingController();
 
   @override
   void initState() {
@@ -82,7 +81,7 @@ class _SigninPageState extends State<SigninPage> {
           children: <Widget>[
             Container(
               decoration: BoxDecoration(
-                  border: Border.all(color: Colors.grey[400], width: 1),
+                  border: Border.all(color: Colors.grey.shade400, width: 1),
                   borderRadius: BorderRadius.all(Radius.circular(12.0))),
               child: CountryCodePicker(
                 onChanged: _countryChange,
@@ -152,7 +151,7 @@ class _SigninPageState extends State<SigninPage> {
 
   _countryChange(CountryCode countryCode) {
     setState(() {
-      dialCode = countryCode.dialCode;
+      dialCode = countryCode.dialCode ?? '+95';
     });
   }