Flutter 使用FirebaseAuth和flift向Firebase注册用户时出现问题

main.dart文件代码

import 'package:flutter/material.dart';
import 'package:flash_chat/screens/login_screen.dart';
import 'screens/chat_screen.dart';
import 'screens/login_screen.dart';
import 'screens/registration_screen.dart';
import 'screens/welcome_screen.dart';
import 'package:firebase_core/firebase_core.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(FlashChat());
}

class FlashChat extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      initialRoute: WelcomeScreen.id,
      routes: {
        WelcomeScreen.id: (context) => WelcomeScreen(),
        LoginScreen.id: (context) => LoginScreen(),
        ChatScreen.id: (context) => ChatScreen(),
        RegistrationScreen.id: (context) => RegistrationScreen(),
      },
    );
  }
}

注册提供电子邮件和密码的用户-

import 'package:flash_chat/constants.dart';
import 'package:flash_chat/screens/chat_screen.dart';
import 'package:flutter/material.dart';
import 'package:flash_chat/components/rounded_botton.dart';
import 'package:firebase_auth/firebase_auth.dart';

class RegistrationScreen extends StatefulWidget {
  static const String id = 'registration_screen';
  @override
  _RegistrationScreenState createState() => _RegistrationScreenState();
}

class _RegistrationScreenState extends State<RegistrationScreen> {
  final _authe = FirebaseAuth.instance;
  String email;
  String password;
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      body: Padding(
        padding: EdgeInsets.symmetric(horizontal: 24.0),
        child: SingleChildScrollView(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: <Widget>[
              Hero(
                tag: 'logo',
                child: Container(
                  height: 200.0,
                  child: Image.asset('images/logo.png'),
                ),
              ),
              SizedBox(
                height: 48.0,
              ),
              TextField(
                textAlign: TextAlign.center,
                onChanged: (value) {
                  //Do something with the user input.
                  email = value;
                },
                decoration:
                    kTextFieldDecoration.copyWith(hintText: 'Enter your email'),
              ),
              SizedBox(
                height: 8.0,
              ),
              TextField(
                keyboardType: TextInputType.emailAddress,
                obscureText: true,
                textAlign: TextAlign.center,
                onChanged: (value) {
                  //Do something with the user input.
                  password = value;
                },
                decoration: kTextFieldDecoration.copyWith(
                    hintText: 'Enter your password'),
              ),
              SizedBox(
                height: 24.0,
              ),
              RoundedButton(
                color: Colors.blueAccent,
                title: 'Register',
                onPressed: () async {
                  try {
                    // print(email);
                    // print(password);
                    final newUser = await _authe.createUserWithEmailAndPassword(
                        email: email, password: password);
                    if (newUser != null) {
                      Navigator.pushNamed(context, ChatScreen.id);
                    }
                  } catch (e) {
                    print(e);
                  }
                },
              ),
            ],
          ),
        ),
      ),
    );
  }
}

添加了firebase-core、auth和firestore的依赖项。

---

在firebase中创建了具有正确包名的项目。

因此，是否仍有解决此问题的方法？

import 'package:flutter/material.dart';
import 'package:flash_chat/constants.dart';
import 'package:firebase_auth/firebase_auth.dart';

class ChatScreen extends StatefulWidget {
  static const String id = 'chat_screen';
  @override
  _ChatScreenState createState() => _ChatScreenState();
}

class _ChatScreenState extends State<ChatScreen> {
  final _authe = FirebaseAuth.instance;
  FirebaseUser loggedInUser;

  @override
  void initState() {
    super.initState();

    getCurrentUser();
  }

  void getCurrentUser() async {
    try {
      final user = await _authe.currentUser;
      if (user != null) {
        loggedInUser = user;
        print(loggedInUser.email);
      }
    } catch (e) {
      print(e);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        leading: null,
        actions: <Widget>[
          IconButton(
              icon: Icon(Icons.close),
              onPressed: () {
                //Implement logout functionality
              }),
        ],
        title: Text('⚡️Chat'),
        backgroundColor: Colors.lightBlueAccent,
      ),
      body: SafeArea(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: <Widget>[
            Container(
              decoration: kMessageContainerDecoration,
              child: Row(
                crossAxisAlignment: CrossAxisAlignment.center,
                children: <Widget>[
                  Expanded(
                    child: TextField(
                      onChanged: (value) {
                        //Do something with the user input.
                      },
                      decoration: kMessageTextFieldDecoration,
                    ),
                  ),
                  FlatButton(
                    onPressed: () {
                      //Implement send functionality.
                    },
                    child: Text(
                      'Send',
                      style: kSendButtonTextStyle,
                    ),
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}

Running Gradle task 'assembleDebug'...
✓ Built build\app\outputs\flutter-apk\app-debug.apk.
Installing build\app\outputs\flutter-apk\app.apk...
Waiting for AOSP on IA Emulator to report its views...
Debug service listening on ws://127.0.0.1:54953/D-MEEGyugCI=/ws
Syncing files to device AOSP on IA Emulator...
D/EGL_emulation( 6022): eglMakeCurrent: 0xca3d5420: ver 2 0 (tinfo 0xdcc99f70)
D/eglCodecCommon( 6022): setVertexArrayObject: set vao to 0 (0) 1 0
I/flutter ( 6022): MaterialColor(primary value: Color(0xff2196f3))
I/flutter ( 6022): MaterialColor(primary value: Color(0xff2196f3))
I/flutter ( 6022): Color(0xff378ddf)
I/flutter ( 6022): Color(0xff876d97)
I/flutter ( 6022): Color(0xffa1637f)
I/flutter ( 6022): Color(0xffbb5969)
I/flutter ( 6022): Color(0xffc25662)
I/flutter ( 6022): Color(0xffc9535b)
I/flutter ( 6022): Color(0xffd15055)
I/flutter ( 6022): Color(0xffd84d4e)
I/flutter ( 6022): Color(0xffdf4a48)
I/flutter ( 6022): Color(0xffe74841)
I/flutter ( 6022): Color(0xffee453b)
I/flutter ( 6022): MaterialColor(primary value: Color(0xfff44336))
W/IInputConnectionWrapper( 6022): beginBatchEdit on inactive InputConnection
W/IInputConnectionWrapper( 6022): getTextBeforeCursor on inactive InputConnection
W/IInputConnectionWrapper( 6022): getTextAfterCursor on inactive InputConnection
W/IInputConnectionWrapper( 6022): getSelectedText on inactive InputConnection
W/IInputConnectionWrapper( 6022): endBatchEdit on inactive InputConnection
I/2709.flash_cha( 6022): Background concurrent copying GC freed 40728(5MB) AllocSpace objects, 36(1156KB) LOS objects, 49% free, 1815KB/3MB, paused 8.548ms total 39.681ms
W/System  ( 6022): Ignoring header X-Firebase-Locale because its value was null.