I'm working on a project( mobile app) with flutter and firebase and faced this error when i run the app:
[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel., null, null)
#0 FirebaseCoreHostApi.initializeCore (package:firebase_core_platform_interface/src/pigeon/messages.pigeon.dart:203:7)
<asynchronous suspension>
#1 MethodChannelFirebase._initializeCore (package:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:29:44)
<asynchronous suspension>
#2 MethodChannelFirebase.initializeApp (package:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:73:7)
<asynchronous suspension>
#3 Firebase.initializeApp (package:firebase_core/src/firebase.dart:43:31)
<asynchronous suspension>
#4 main (package:dachsmate/main.dart:14:3)
<asynchronous suspension>
N.B: there are no errors in the code .
This is the main :
import 'package:dachsmate/screen/auth_screen.dart';
import 'package:dachsmate/screen/intro_screen.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:dachsmate/screen/forgotpass_screen.dart';
import 'package:dachsmate/screen/verifcode_screen.dart';
import 'package:dachsmate/screen/newpass_screen.dart';
import 'package:dachsmate/screen/userinterface_screen.dart';
Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
var colors;
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'flutter dachsmate',
theme: ThemeData(
primaryColor: Color(0x2B3B61FF),
textTheme: TextTheme(
headline1: TextStyle(fontSize: 30, color: Colors.white, fontWeight: FontWeight.bold),
headline2: TextStyle(fontSize: 30, color: Colors.yellow, fontWeight: FontWeight.bold),
headline3: TextStyle(fontSize: 30, color: Colors.yellow, fontWeight: FontWeight.bold),
),
inputDecorationTheme: InputDecorationTheme(
filled: true,
fillColor: Color(0x94FFFFFF),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(color: Colors.blueGrey.withOpacity(0.01)),
borderRadius: BorderRadius.circular(15)
),
disabledBorder: OutlineInputBorder(
borderSide: BorderSide(color: Colors.blueGrey.withOpacity(0.01)),
borderRadius: BorderRadius.circular(15)
),
focusedBorder: OutlineInputBorder(
borderSide: BorderSide(color: Colors.blueGrey.withOpacity(0.01)),
borderRadius: BorderRadius.circular(15)
),
),
),
home: IntroScreen(),
routes: {
'login': (context) => Authscreen(authType: AuthType.login),
'register': (context) => Authscreen(authType: AuthType.register),
'forgotpass': (context) => ForgotPassScreen(),
'verifcode': (context) => VerifCodeScreen(),
'newpass' : (context) => NewpassScreen(),
'ui' : (context) => UserinterfaceScreen(),
},
);
}
}
and this is the authentification form :
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:dachsmate/widgets/original_button.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/material.dart';
import 'package:dachsmate/screen/auth_screen.dart';
import 'package:dachsmate/screen/userinterface_screen.dart';
import 'package:firebase_storage/firebase_storage.dart' as fStorage;
import 'package:shared_preferences/shared_preferences.dart';
class AuthForm extends StatefulWidget {
final AuthType authType;
const AuthForm({Key? key, required this.authType}) : super(key: key);
@override
State<AuthForm> createState() => _AuthFormState();
}
class _AuthFormState extends State<AuthForm> {
bool _isRegister = false;
final _formkey = GlobalKey<FormState>();
String _email = '', _password = '', _name ='';
String _matricule = '';
String _vidangeCode = '';
TextEditingController anyController = TextEditingController();
TextEditingController EmailController = TextEditingController();
TextEditingController PasswordController = TextEditingController();
TextEditingController NameController = TextEditingController();
TextEditingController MatriculeController = TextEditingController();
TextEditingController CodeController = TextEditingController();
@override
void initState() {
super.initState();
_isRegister = widget.authType == AuthType.register;
}
// Future<void> formValidation()async
// {if }
void authenticateUserSignUp() async {
User? currentUser;
final FirebaseAuth firebaseAuth = FirebaseAuth.instance;
await firebaseAuth.createUserWithEmailAndPassword(
email: EmailController.text.trim(),
password: PasswordController.text.trim(),
).then((auth) {
currentUser = auth.user;
});
if (currentUser != null) {
saveDataToFirestore(currentUser!).then((value) {
Navigator.pop (context);
//send user to homePage
Route newRoute = MaterialPageRoute(builder: (c) =>UserinterfaceScreen() );
Navigator.pushReplacement(context, newRoute);
});
}
}
Future saveDataToFirestore (User currentUser) async
{
FirebaseFirestore.instance.collection("users").doc(currentUser.uid).set({
"userUID":currentUser.uid,
"userEmail":currentUser.email,
"userName":NameController.text.trim(),
"userMatricule":MatriculeController.text.trim(),
"userCode":CodeController.text.trim(),
"status": "approved",
// "lat": position!.latitude,
// "lng": position!.longitude,
});
//SAve data locally
authenticateUserSignUp();
SharedPreferences? sharedPreferences = await SharedPreferences.getInstance();
await sharedPreferences.setString("uid", currentUser.uid);
await sharedPreferences.setString("name", NameController.text.trim());
await sharedPreferences.setString("email", currentUser.email.toString());
await sharedPreferences.setString("password", PasswordController.text.trim());
await sharedPreferences.setString("Matricule", MatriculeController.text.trim());
await sharedPreferences.setString("code", CodeController.text.trim());
}
@override
Widget build(BuildContext context) {
return Form(
key: _formkey,
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 40),
child: Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: <Widget>[
if (_isRegister) SizedBox(height: 16),
if (_isRegister)
TextFormField(
onChanged: (value) => _name = value,
validator: (value) =>
value!.isEmpty ? 'Entrer un nom et un prénom' : null,
decoration: InputDecoration(
labelText: 'Entrer votre nom et prénom',
hintText: 'exp: Jean Dubois',
filled: true,
fillColor: Colors.white.withOpacity(0.3),
labelStyle: TextStyle(color: Colors.black54),
),
),
SizedBox(height: 13),
TextFormField(
onChanged: (value) => _email = value,
validator: (value) =>
value!.isEmpty ? 'Entrer un mail valide' : null,
decoration: InputDecoration(
labelText: 'Entrer votre adresse mail',
hintText: 'exp: exemple@gmail.com',
filled: true,
fillColor: Colors.white.withOpacity(0.3),
labelStyle: TextStyle(color: Colors.black54),
),
),
SizedBox(height: 16),
TextFormField(
onChanged: (value) => _password = value,
validator: (value) => value!.length < 8
? 'Votre mot de passe doit comporter au moins 8 caractères'
: null,
decoration: InputDecoration(
labelText: 'Entrer votre mot de passe',
filled: true,
fillColor: Colors.white.withOpacity(0.3),
labelStyle: TextStyle(color: Colors.black54),
),
obscureText: true,
),
if (_isRegister) SizedBox(height: 16),
if (_isRegister)
TextFormField(
onChanged: (value) => _matricule = value,
validator: (value) => value!.isEmpty ? 'Entrer un matricule valide' : null,
decoration: InputDecoration(
labelText: 'Entrer votre matricule',
hintText: 'exp: 123 TUN 1234',
filled: true,
fillColor: Colors.white.withOpacity(0.3),
labelStyle: TextStyle(color: Colors.black54),
),
),
if (_isRegister) SizedBox(height: 16),
if (_isRegister)
TextFormField(
onChanged: (value) => _vidangeCode = value,
validator: (value) => value!.isEmpty ? 'Entrer un code de vidange valide' : null,
decoration: InputDecoration(
labelText: 'Entrer votre code de la carte de vidange',
hintText: 'exp: ABCD1234',
filled: true,
fillColor: Colors.white.withOpacity(0.3),
labelStyle: TextStyle(color: Colors.black54),
),
),
SizedBox(height: 10),
if (widget.authType == AuthType.login) // Render forgot password button only in login screen
Align(
alignment: Alignment.centerRight,
child: TextButton(
onPressed: () {
Navigator.of(context).pushReplacementNamed('forgotpass');// Add code to handle forgot password button click
},
child: Text(
'Mot de passe oublié ?',
style: TextStyle(
color: Colors.white70,
fontSize: 12.5,
),
),
),
),
SizedBox(height: 25),
OriginalButton(
text: widget.authType == AuthType.login
? 'Connexion'
: 'Créer un compte',
onPressed: () {
if (_formkey.currentState!.validate()) {
// print(_name);
// print(_email);
// print(_password);
Navigator.of(context).pushNamed('ui');
}
},
textColor: Colors.black,
bgColor: Color(0xFFFFD803),
),
SizedBox(height: 10),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
TextButton(
onPressed: () {
if (widget.authType == AuthType.login)
Navigator.of(context).pushReplacementNamed('register');
else
Navigator.of(context).pushReplacementNamed('login');
},
child: Text(
widget.authType == AuthType.login
? 'Première fois ? Inscrivez-vous'
: 'Vous avez un compte ? Connectez-vous',
style: TextStyle(
color: Colors.white70,
fontSize: 14.5,
),
),
),
],
),
],
),
),
);
}
}
(i was expecting the app to work and when i enter any data in sign up for example it is stored in the firebase .)
