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import 'dart:async';
import 'package:flutter_facebook_login/flutter_facebook_login.dart';
import 'package:flutter/material.dart';
void main() => runApp(new MyApp());
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => new _MyAppState();
}
class _MyAppState extends State<MyApp> {
static final FacebookLogin facebookSignIn = new FacebookLogin();
String _message = 'Log in/out by pressing the buttons below.';
Future<Null> _login() async {
final FacebookLoginResult result =
await facebookSignIn.logIn(['email']);
switch (result.status) {
case FacebookLoginStatus.loggedIn:
final FacebookAccessToken accessToken = result.accessToken;
_showMessage('''
Logged in!
Token: ${accessToken.token}
User id: ${accessToken.userId}
Expires: ${accessToken.expires}
Permissions: ${accessToken.permissions}
Declined permissions: ${accessToken.declinedPermissions}
''');
break;
case FacebookLoginStatus.cancelledByUser:
_showMessage('Login cancelled by the user.');
break;
case FacebookLoginStatus.error:
_showMessage('Something went wrong with the login process.\n'
'Here\'s the error Facebook gave us: ${result.errorMessage}');
break;
}
}
Future<Null> _logOut() async {
await facebookSignIn.logOut();
_showMessage('Logged out.');
}
void _showMessage(String message) {
setState(() {
_message = message;
});
}
@override
Widget build(BuildContext context) {
return new MaterialApp(
home: new Scaffold(
appBar: new AppBar(
title: new Text('Plugin example app'),
),
body: new Center(
child: new Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Text(_message),
new RaisedButton(
onPressed: _login,
child: new Text('Log in'),
),
new RaisedButton(
onPressed: _logOut,
child: new Text('Logout'),
),
],
),
),
),
);
}
}
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