final

lib/widgets/mobile/mobile_new_user.dart

@@ -1,9 +1,9 @@
 
-import 'package:countdown/countdown.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:fluttertoast/fluttertoast.dart';
 
+import '../../vendor/countdown/countdown.dart';
 import '../../constants.dart';
 import '../../generated/l10n.dart';
 import '../../routes.dart';
@@ -11,7 +11,7 @@ import '../../utils/http_util.dart';
 import '../../utils/utils.dart';
 
 class MobileNewUser extends StatefulWidget {
-  const MobileNewUser({Key key}) : super(key: key);
+  const MobileNewUser({Key? key}) : super(key: key);
 
   @override
   State<StatefulWidget> createState() {
@@ -28,9 +28,9 @@ class MobileNewUserState extends State<MobileNewUser> {
   bool usernameEnable = true;
   final codeController = TextEditingController();
 
-  bool enableGetCode;
-  String getCodeText;
-  bool canRegister;
+  bool enableGetCode = false;
+  String? getCodeText;
+  bool canRegister = false;
 
   var countDownListener;
 
@@ -87,8 +87,8 @@ class MobileNewUserState extends State<MobileNewUser> {
                         fontSize: 18.0
                     ),
                     autofocus: true,
-                    validator: (String value) {
-                      if (value.trim().isEmpty) {
+                    validator: (String? value) {
+                      if (value == null || value.trim().isEmpty) {
                         return S.of(context).mobile_or_email_is_required;
                       }
                       return null;
@@ -155,7 +155,7 @@ class MobileNewUserState extends State<MobileNewUser> {
                                 borderRadius: BorderRadius.all(Radius.circular(10.0)),
                               ),
                               child: Text(
-                                getCodeText,
+                                '${getCodeText}',
                                 style: TextStyle(
                                     color: enableGetCode ? Colors.black87 : Colors.black26,
                                     fontSize: 14.0
@@ -170,8 +170,8 @@ class MobileNewUserState extends State<MobileNewUser> {
                     style: TextStyle(
                         fontSize: 18.0
                     ),
-                    validator: (String value) {
-                      if (value.trim().isEmpty) {
+                    validator: (String? value) {
+                      if (value == null || value.trim().isEmpty) {
                         return S.of(context).verification_code_is_required;
                       }
                       return null;
@@ -203,7 +203,7 @@ class MobileNewUserState extends State<MobileNewUser> {
             alignment: Alignment.centerRight,
             child: ElevatedButton(
               style: ElevatedButton.styleFrom(
-                primary: Theme.of(context).primaryColor,
+                backgroundColor: Theme.of(context).primaryColor,
               ),
               child: Text(
                 S.of(context).register,
@@ -236,8 +236,8 @@ class MobileNewUserState extends State<MobileNewUser> {
   }
 
   void register() {
-    final FormState form = _formKey.currentState;
-    if (form.validate()) {
+    final FormState? form = _formKey.currentState;
+    if (form != null && form.validate()) {
       HttpUtil.httpPost('v1/users', (response) {
         Routes.router.navigateTo(context, '/set-password/${usernameController.text.trim()}/${codeController.text.trim()}', replace: true);
       },