enter image description here

ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: [firebase_auth/unknown] com.google.firebase.FirebaseException: An internal error has occurred. [ API key not valid. Please pass a valid API key.

Firebase çalışmıyor daha önce çalışıyordu yeni firebase kurdum şimdi çalışmıyor

CodePudding user response：

main.dart

// ignore_for_file: prefer_const_constructors

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'screens/splash_screen.dart';
import 'package:firebase_core/firebase_core.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitDown,
    DeviceOrientation.portraitUp,
  ]);
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
        statusBarColor: Colors.transparent,
        systemNavigationBarColor: Color.fromARGB(0, 255, 255, 255)));
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: SplashScreen(),
    );
  }
}

CodePudding user response：

// ignore_for_file: prefer_const_literals_to_create_immutables, prefer_const_constructors
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';

import 'forgot_password_page.dart';

class LoginPage extends StatefulWidget {
  final VoidCallback showRegisterPage;
  const LoginPage({Key? key, required this.showRegisterPage}) : super(key: key);

  @override
  State<LoginPage> createState() => _LoginPageState();
}

class _LoginPageState extends State<LoginPage> {
  // text controlles
  final _emailController = TextEditingController();
  final _passwordController = TextEditingController();

  Future signIn() async {
    await FirebaseAuth.instance.signInWithEmailAndPassword(
      email: _emailController.text.trim(),
      password: _passwordController.text.trim(),
    );
  }

  @override
  void dispose() {
    _emailController.dispose();
    _passwordController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      body: SafeArea(
        child: Center(
          child: SingleChildScrollView(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                SizedBox(
                  height: 1,
                ),
                //Hello Again!
                Text(
                  "Hello Again!",
                  style: GoogleFonts.bebasNeue(
                    fontSize: 52,
                  ),
                ),
                SizedBox(height: 10),
                Text(
                  "Welcome back, you've been missed!",
                  style: TextStyle(
                    fontSize: 20,
                  ),
                ),
                SizedBox(height: 50),

                // email textfield
                Padding(
                  padding: const EdgeInsets.symmetric(horizontal: 25.0),
                  child: TextField(
                    controller: _emailController,
                    decoration: InputDecoration(
                      enabledBorder: OutlineInputBorder(
                        borderSide: BorderSide(color: Colors.white),
                        borderRadius: BorderRadius.circular(12),
                      ),
                      hintText: "E-mail",
                      fillColor: Colors.grey[200],
                      filled: true,
                    ),
                  ),
                ),
                SizedBox(height: 10),

                // password textfield
                Padding(
                  padding: const EdgeInsets.symmetric(horizontal: 25.0),
                  child: TextField(
                    obscureText: true,
                    controller: _passwordController,
                    decoration: InputDecoration(
                      enabledBorder: OutlineInputBorder(
                        borderSide: BorderSide(color: Colors.white),
                        borderRadius: BorderRadius.circular(12),
                      ),
                      hintText: "Password",
                      fillColor: Colors.grey[200],
                      filled: true,
                    ),
                  ),
                ),
                SizedBox(height: 10),

                //Forgot Password reset

                Padding(
                  padding: const EdgeInsets.symmetric(horizontal: 25.0),
                  child: Row(
                    mainAxisAlignment: MainAxisAlignment.end,
                    children: [
                      GestureDetector(
                        onTap: () {
                          Navigator.push(
                            context,
                            MaterialPageRoute(
                              builder: (context) {
                                return ForgotPasswordPage();
                              },
                            ),
                          );
                        },
                        child: Text(
                          "Forgot Password?",
                          style: TextStyle(
                            color: Colors.blue,
                            fontWeight: FontWeight.bold,
                          ),
                        ),
                      ),
                    ],
                  ),
                ),
                SizedBox(height: 10),

                // sing in button
                Padding(
                  padding: const EdgeInsets.symmetric(horizontal: 25.0),
                  child: GestureDetector(
                    onTap: signIn,
                    child: Container(
                      padding: EdgeInsets.all(20),
                      decoration: BoxDecoration(
                        color: Colors.lightBlue,
                        borderRadius: BorderRadius.circular(12),
                      ),
                      child: Center(
                        child: Text(
                          "Sign In",
                          style: TextStyle(
                            color: Colors.white,
                            fontWeight: FontWeight.bold,
                            fontSize: 18,
                          ),
                        ),
                      ),
                    ),
                  ),
                ),
                SizedBox(height: 25),

                //not a member? register now
                Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Text(
                      "Not a member?",
                      style: TextStyle(
                        fontWeight: FontWeight.bold,
                      ),
                    ),
                    GestureDetector(
                      onTap: widget.showRegisterPage,
                      child: Text(
                        " Register Now",
                        style: TextStyle(
                          color: Colors.blue,
                          fontWeight: FontWeight.bold,
                        ),
                      ),
                    ),
                  ],
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}