电子邮件地址格式不正确，[firebase_auth/无效电子邮件]

Question

这是我的代码。。这是成功运行的，没有任何错误，但一旦我点击注册按钮，它就会抛出错误。

import 'package:flutter/material.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:firebase_core/firebase_core.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
runApp(MaterialApp(
home: Homepage(),
routes: {
'/home': (context) {
return Homepage();
},
'/first': (context) {
return First_Page();
},
},
));
}
class Homepage extends StatefulWidget {
const Homepage({Key? key}) : super(key: key);
@override
_HomepageState createState() => _HomepageState();
}
class _HomepageState extends State<Homepage> {
final Future<FirebaseApp> _initialization = Firebase.initializeApp();
final _auth = FirebaseAuth.instance;
final _user = TextEditingController();
final _pass = TextEditingController();
String email = '';
String password = '';
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Colors.blue,
title: Text(
'Sign-Up',
),
centerTitle: true,
),
body: SingleChildScrollView(
child: Column(
children: [
Padding(
padding: EdgeInsets.only(top: 250),
),
Container(
child: TextFormField(
controller: _user,
decoration: InputDecoration(
hintText: "Email-id",
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(10),
)),
),
),
SizedBox(
height: 10,
),
Container(
child: TextFormField(
controller: _pass,
decoration: InputDecoration(
hintText: "Password",
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(10),
)),
),
),
FlatButton(
color: Colors.blue,
child: Text('Sign-up'),
onPressed: () async {
await Firebase.initializeApp();
email = _user.toString();
password = _pass.toString();
final newuser = await _auth.createUserWithEmailAndPassword(
email: email.trim(),
password: password.trim(),
);
if (newuser != null) {
Navigator.pushNamed(context, '/First_Page');
} else
print('Error');
},
),
],
),
),
);
}
}

这些都是我得到的错误

E/flutter (10268): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: 
[firebase_auth/invalid-email] The email address is badly formatted.
E/flutter (10268): #0      MethodChannelFirebaseAuth.createUserWithEmailAndPassword 
(package:firebase_auth_platform_interface/src/method_channel
/method_channel_firebase_auth.dart:272:7)
E/flutter (10268): <asynchronous suspension>
E/flutter (10268): #1      FirebaseAuth.createUserWithEmailAndPassword 
(package:firebase_auth/src/firebase_auth.dart:238:7)
E/flutter (10268): <asynchronous suspension>
E/flutter (10268): #2      _HomepageState.build.<anonymous closure> 
(package:firebase/main.dart:79:31)
E/flutter (10268): <asynchronous suspension>
E/flutter (10268): 

在firebase身份验证中，我已经启用了电子邮件登录方法，现在我没有弄错。请告诉我。提前谢谢。。

Answer 1

对于您使用的email地址：

email=_user.toString();

_user为：

final _user=TextEditingController()

因此，您在TextEditingController上调用toString，这将为您提供该控制器的调试表示。如果你想要该控制器的值，你需要使用：

email=_user.value;

---

为了自己发现这类问题，我建议学习设置断点并使用调试器。如果在_auth.createUserWithEmailAndPassword(异常的来源(上设置一个断点并在调试器中运行，您可以很容易地看到email没有您期望的值。从那里开始，应该可以追溯到值的来源，并查看TextEditingController的文档以查看正确的调用。