Ignoring header X-Firebase-Locale because its value was null
I'm currently doing a project on Android Studio and I'm using the sign in authentication. It works sometimes but sometimes it doesn't with the error "Ignoring header X-Firebase-Locale because its value was null."
Usually the way I fix this is just reloading the app but is there a way around to this?
My code
authentication_service.dart
import 'package:firebase_auth/firebase_auth.dart';
class AuthenticationService{
final FirebaseAuth _firebaseAuth;
AuthenticationService(this._firebaseAuth);
Stream<User> get authStateChanges => _firebaseAuth.authStateChanges();
Future<void> signOut() async{
await _firebaseAuth.signOut();
}
Future<void> sendPasswordResetEmail(String email) async{
return _firebaseAuth.sendPasswordResetEmail(email: email);
}
Future<String> signIn({String email, String password}) async{
try{
await _firebaseAuth.signInWithEmailAndPassword(email: email, password: password);
return "Signed in";
} on FirebaseAuthException catch (e){
var errorCode = e.code;
var errorMessage = e.message;
if(errorCode == 'auth/wrong-password'){
return ('Wrong Password.');
}
else{
return errorMessage;
}
}
}
Future<String> signUp({String email, String password}) async{
try{
await _firebaseAuth.createUserWithEmailAndPassword(email: email, password: password);
return "Signed up";
} on FirebaseAuthException catch(e){
return e.message;
}
}
}
login.dart
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'main.dart';
import 'package:provider/provider.dart';
import 'package:final_app/authentication_service.dart';
import 'signup.dart';
class MyLogin extends StatefulWidget{
@override
_MyLoginPage createState() => new _MyLoginPage();
}
class _MyLoginPage extends State<MyLogin>{
final _formKey = GlobalKey<FormState>();
String _email;
String _password;
TextEditingController emailController = new TextEditingController();
bool validateEmail(String value) {
Pattern pattern =
r'^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$';
RegExp regex = new RegExp(pattern);
return (!regex.hasMatch(value)) ? false : true;
}
@override
Widget build(BuildContext context){
return new Scaffold(
resizeToAvoidBottomPadding: false,
// backgroundColor: Colors.cyan,
body: Form(
key: _formKey,
child: SingleChildScrollView(
child: Column(
children: <Widget>[
Container(
child: Stack(
children: <Widget>[
Container(
padding: EdgeInsets.fromLTRB(45.0, 55.0, 0.0, 0.0),
child: Text(
'Pawsibilities',
style: TextStyle(fontSize: 60.0,fontFamily: "Smile", fontWeight: FontWeight.bold)
)
),
Container(
padding: EdgeInsets.fromLTRB(140.0, 150.0, 130.0, 0.0),
child: Image.asset('assets/download.png')
),
]
)
),
Container(
padding: EdgeInsets.only(top: 35.0, left: 20.0, right: 20.0),
child: Column(
children: <Widget>[
TextFormField(
decoration: InputDecoration(
labelText: 'Username',
hintText: 'Email',
labelStyle: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.grey,
),
),
onSaved: (value) => _email = value,
validator: (value){
if(value.isEmpty){
return 'Email needed!';
}
if(!validateEmail(_email)){
return 'Valid Email Needed!';
}
return null;
},
),
SizedBox(height: 20.0),
TextFormField(
decoration: InputDecoration(
labelText: 'Password',
labelStyle: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.grey,
),
),
onSaved: (value) => _password = value,
validator: (value)
{
if(value.isEmpty){
return 'Password Needed!';
}
return null;
},
obscureText: true,
),
SizedBox(height: MediaQuery.of(context).viewInsets.bottom),
SizedBox(height: 5.0),
Container(
alignment: Alignment(1.0,0.0),
padding: EdgeInsets.only(top: 15.0, left: 20.0),
child: InkWell(
onTap: (){
showDialog(
context: context,
builder: (BuildContext context) => new CupertinoAlertDialog(
title: Text("Enter Email"),
actions: [
CupertinoDialogAction(
child: Text("Send"),
onPressed: () {
Navigator.of(context).pop();
context.read<AuthenticationService>().sendPasswordResetEmail(emailController.text);
}
)
],
content: CupertinoTextField(
placeholder: "Email",
controller: emailController,
)
),
);
},
child: Text(
'Forgot Password?',
style: TextStyle(
color: Colors.cyan,
fontWeight: FontWeight.bold,
decoration: TextDecoration.underline
),
),
)
),
SizedBox(height: 40.0),
Container(
height: 40.0,
child: Material(
borderRadius: BorderRadius.circular(20.0),
shadowColor: Colors.cyanAccent,
color: Colors.cyan,
elevation: 7.0,
child: InkWell(
onTap: () {
final form = _formKey.currentState;
form.save();
if(form.validate()){
context.read<AuthenticationService>().signIn(
email: _email,
password: _password,
);
}
},
child: Center(
child: Text(
'Login',
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.white,
),
),
),
),
),
),
SizedBox(height: 20.0),
Container(
height: 40.0,
color: Colors.transparent,
child: InkWell(
onTap: (){
showDialog(
context: context,
builder: (BuildContext context) => CupertinoAlertDialog(
title: Text("Please fur-give me! Coming Soon :)"),
actions:[
CupertinoDialogAction(
child: Text("Close"),
onPressed: (){
Navigator.of(context).pop();
}
)
]
));
},
child: Container(
decoration: BoxDecoration(
border: Border.all(
color: Colors.black,
style: BorderStyle.solid,
width: 1.0,
),
color: Colors.transparent,
borderRadius: BorderRadius.circular(20.0)
),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Center(
child: ImageIcon(AssetImage('assets/facebook.png')),
),
SizedBox(width: 10.0),
Center(
child: Text('Login with Facebook', style: TextStyle(
fontWeight: FontWeight.bold,
))
)
]
)
),
)
)
]
)
),
SizedBox(height:15.0),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'Looking for Pawsibilites?',
style: TextStyle(
fontWeight: FontWeight.bold,
)
),
SizedBox(width: 5.0),
InkWell(
onTap: () {
Navigator.push(context, MaterialPageRoute(builder: (context) => MySignUp()));
},
child: Text(
'Register',
style: TextStyle(
color: Colors.cyan,
fontWeight: FontWeight.bold,
decoration: TextDecoration.underline,
)
)
)
],
)
]
),
),
),
);
}
}
main.dart
import 'package:final_app/authentication_service.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:http/http.dart' as http;
import 'dart:convert';
import 'dogs.dart';
import 'doginfo.dart';
import 'search.dart';
import 'login.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:provider/provider.dart';
import 'package:firebase_auth/firebase_auth.dart';
Future<void> main() async{
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MultiProvider(
providers: [
Provider<AuthenticationService>(
create: (_) => AuthenticationService(FirebaseAuth.instance),
),
StreamProvider(
create: (context) => context.read<AuthenticationService>().authStateChanges,
)
],
child: MaterialApp(
title: 'Final',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: SplashScreen(),
),
);
}
}
class AuthenticationWrapper extends StatelessWidget{
const AuthenticationWrapper({
Key key,
}): super(key:key);
@override
Widget build(BuildContext context){
final firebaseUser = context.watch<User>();
if(firebaseUser != null){
return MyHomePage();
}
return MyLogin();
}
}
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
var url = "https://bitbucket.org/cs481group5/doggydex/raw/e75c3c49f55fdcf63044e89d85ab512affb87483/doggydexx.json";
DogHub dogHub;
@override
void initState(){
super.initState();
fetchData();
}
fetchData() async{
var res = await http.get(url);
var decodedJson = jsonDecode(res.body);
dogHub = DogHub.fromJson(decodedJson);
print(dogHub.toJson());
setState(() {
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Doggies Search", style: TextStyle(fontSize: 18, wordSpacing: 125)),
backgroundColor: Colors.cyan,
actions: <Widget>[
IconButton(icon: Icon(Icons.search),
onPressed: () {
showSearch(context: context, delegate: DataSearch());
})
]
),
body: dogHub == null? Center(child: CircularProgressIndicator()):
GridView.count(
crossAxisCount: 2,
children: dogHub.dog
.map((dog) => Padding(
padding: const EdgeInsets.all(2.0),
child: InkWell(
onTap: (){
Navigator.push(context, MaterialPageRoute(builder: (context) => DogDetail(
dog: dog,
)));
},
child: Hero(
tag: dog.image,
child: Card(
elevation: 3.0,
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
Container(
height: 100.0,
width: 100.0,
decoration: BoxDecoration(
image: DecorationImage(image: NetworkImage(dog.image)),
),
),
Text(
dog.breed, style: TextStyle(fontSize: 20.0, fontWeight: FontWeight.bold)),
]
)
),
),
),
)).toList(),
),
drawer: Drawer(
child: ListView(
padding: EdgeInsets.zero,
children: [
Container(
color: Colors.cyan,
child: DrawerHeader(
child: CircleAvatar(
radius: 10,
backgroundColor: Colors.transparent,
child: ClipOval(
child: Image.asset('images/avatar.png',
width: 125,
height: 125,
fit: BoxFit.cover,)
),
),
),
),
ListTile(
leading: Icon(Icons.search, color: Colors.deepPurple),
title: Text('Dog List'),
onTap: (){
Navigator.push(context, MaterialPageRoute(builder: (context) => MyHomePage()));
},
),
Divider(color: Colors.black),
ListTile(
leading: Icon(Icons.map, color: Colors.blue),
title: Text('Dog Parks'),
onTap: (){
},
),
Divider(color: Colors.black),
ListTile(
leading: Icon(Icons.favorite, color: Colors. red),
title: Text('Favorites'),
onTap: (){
},
),
Divider(color: Colors.black),
ListTile(
leading: Icon(Icons.person, color: Colors.green),
title: Text('Account Info'),
onTap: (){
},
),
Divider(color: Colors.black),
ListTile(
title: Text('Log Out'),
onTap: (){
context.read<AuthenticationService>().signOut();
// Navigator.of(context).pop();
},
),
],
),
),
);
}
}
class SplashScreen extends StatefulWidget{
@override
_SplashScreenState createState() => _SplashScreenState();
}
class _SplashScreenState extends State<SplashScreen> with SingleTickerProviderStateMixin{
double opacity = 0;
@override
void initState(){
super.initState();
Timer(Duration(seconds: 5), ()=>Navigator.pushReplacement(context,MaterialPageRoute(builder: (context)=>AuthenticationWrapper())));
changeOpacity();
}
changeOpacity(){
Future.delayed(Duration(seconds: 3), (){
setState(() {
opacity = opacity == 0.0 ? 1.0 : 1.0;
});
});
}
Widget build(BuildContext context) {
return Scaffold(
body: Container(
child: Stack(
alignment: Alignment.center,
children: [
Opacity(
opacity: 1,
child: Image.asset('images/wallpaper.jpg',
fit: BoxFit.cover,
height: 800),
),
Opacity(
opacity: 1,
child: Image.asset('images/paw2.gif'),
),
AnimatedOpacity(
duration: Duration(seconds: 1),
opacity: opacity,
child: Text(
'Pawsibilities',
style: TextStyle(color: Colors.black, fontFamily: "Smile", fontSize: 50),
),
)
],
)
),
);
}
@override
dispose() {
// _animationController.dispose();
super.dispose();
}
}
build.gradle
def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
localPropertiesFile.withReader('UTF-8') { reader ->
localProperties.load(reader)
}
}
def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}
def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
flutterVersionCode = '1'
}
def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
flutterVersionName = '1.0'
}
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
apply plugin: 'com.google.gms.google-services'
android {
compileSdkVersion 29
sourceSets {
main.java.srcDirs += 'src/main/kotlin'
}
lintOptions {
disable 'InvalidPackage'
}
defaultConfig {
// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
applicationId "com.cs481.final_app"
minSdkVersion 16
targetSdkVersion 29
versionCode flutterVersionCode.toInteger()
versionName flutterVersionName
}
buildTypes {
release {
// TODO: Add your own signing config for the release build.
// Signing with the debug keys for now, so `flutter run --release` works.
signingConfig signingConfigs.debug
}
}
}
flutter {
source '../..'
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation platform('com.google.firebase:firebase-bom:26.1.0')
implementation 'com.google.firebase:firebase-auth'
}
This also happens when I sign up, I usually have to restart the app for the new username/password to be used.
I have the dependences in my build.grade
Solution 1:
The message "Ignoring header X-Firebase-Locale because its value was null." is just a warning. It'll be helpful if you can provide the complete error log that you received.
Usual cause of this issue are Email/Password Sign-in method being disabled in the Firebase console and the Android emulator not being set up properly.