We are a project group trying to create a Twitter login page with flutter. We connect the project with firebase and in the first time it worked, but when I tried to run it with the same steps on my device I get an error. Is it because we use the same token or firebase account for different files? or I miss something? I did add the callback URLs, sdk and firebase
twittersdk://
https://saanaad-dd***.firebaseapp.com/__/auth/handler
This is the code:
import 'dart:math';
import 'package:firebase_database/firebase_database.dart';
import 'package:flutter/material.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:twitter_kit/twitter_kit.dart';
import 'package:flutter_twitter_login/flutter_twitter_login.dart' ;
import 'package:firebase_auth/firebase_auth.dart' as auth;
Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
final Future<FirebaseApp> _fbApp = Firebase.initializeApp();
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
),
home: FutureBuilder(
future: _fbApp,
builder: (context, snapshot){
if(snapshot.hasError){
print('Have error!');
}//first if
else if(snapshot.hasData){
return MyHomePage(title: 'Sanad Flutter!');
}
else{
return Center(
child: CircularProgressIndicator(),
);
}
},//builder
)
//(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
DatabaseReference _testRef = FirebaseDatabase.instance.reference().child("test");
_testRef.set("Hello World ${Random().nextInt(100)}");
setState(() {
// This call to setState tells the Flutter framework that something has
// changed in this State, which causes it to rerun the build method below
// so that the display can reflect the updated values. If we changed
// _counter without calling setState(), then the build method would not be
// called again, and so nothing would appear to happen.
_counter++;
});
}
Future<auth.User> loginWithTwitter() async {
var twitterLogin = new TwitterLogin(
consumerKey: '********',
consumerSecret: '***********',
);
final auth.FirebaseAuth _auth = auth.FirebaseAuth.instance;
//print('result unfound');
final TwitterLoginResult result = await twitterLogin.authorize();
switch (result.status) {
case TwitterLoginStatus.loggedIn:
var session=result.session;
final auth.AuthCredential credential= TwitterAuthProvider.credential(accessToken: session.token, secret: session.secret);
print('Entered case 1');
print('session key');
print(session.token);
print(session.secret);
auth.User firebaseUser=(await _auth.signInWithCredential(credential)).user;
break;
case TwitterLoginStatus.cancelledByUser:
print('Entered case 2');
break;
case TwitterLoginStatus.error:
String newMessage = 'Login error: ${result.errorMessage}';
print(newMessage);
print('Error: in case 3');
break;
}
return null;
}
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
// Column is also a layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Invoke "debug painting" (press "p" in the console, choose the
// "Toggle Debug Paint" action from the Flutter Inspector in Android
// Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
// to see the wireframe for each widget.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headline4,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: loginWithTwitter,
tooltip: 'Increment',
child: Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
}
This is the error message with my prints:
> I/TetheringManager( 8919): registerTetheringEventCallback:com.example.sanad
E/Twitter ( 8919): Failed to get request token
E/Twitter ( 8919): Authorization completed with an error
E/Twitter ( 8919): com.twitter.sdk.android.core.TwitterAuthException: Failed to get request token
E/Twitter ( 8919): at com.twitter.sdk.android.core.identity.OAuthController$1.failure(OAuthController.java:94)
E/Twitter ( 8919): at com.twitter.sdk.android.core.internal.oauth.OAuth1aService$1.failure(OAuth1aService.java:191)
E/Twitter ( 8919): at com.twitter.sdk.android.core.Callback.onFailure(Callback.java:48)
E/Twitter ( 8919): at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$2.run(ExecutorCallAdapterFactory.java:79)
E/Twitter ( 8919): at android.os.Handler.handleCallback(Handler.java:938)
E/Twitter ( 8919): at android.os.Handler.dispatchMessage(Handler.java:99)
E/Twitter ( 8919): at android.os.Looper.loop(Looper.java:223)
E/Twitter ( 8919): at android.app.ActivityThread.main(ActivityThread.java:7656)
E/Twitter ( 8919): at java.lang.reflect.Method.invoke(Native Method)
E/Twitter ( 8919): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
E/Twitter ( 8919): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
I/flutter ( 8919): Login error: Failed to get request token
I/flutter ( 8919): Error: in case 3
Note: I used the same flutter default app and use the '+' button as a login-button temporarily.
