Facebook登录按钮不刷新自动注销
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【中文标题】Facebook登录按钮不刷新自动注销【英文标题】：Facebook login button not refreshing to logout automatically 【发布时间】：2017-03-29 15:23:56 【问题描述】：使用 'Facebook Login for the Web with the javascript SDK'，我有一个登录按钮可以正常工作，即用户登录正常。(https://developers.facebook.com/docs/facebook-login/web#loginbutton)。
但是，在我刷新页面之前，该按钮不会更改为“注销”按钮。刷新后会显示注销按钮，单击后会按预期恢复为登录按钮。以下是可以在 IIS 中运行的完整代码。我把它放在我的默认网站上并调用http://localhost/aspnet_client/system_web/4_0_30319/test.html。
注意：在上面写的地方添加您的应用 ID，在此处添加您的应用 ID。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<link href='http://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>
<div class="row margin-bottom-small">
<div id="login-button" class="fb-login-button" data-max-rows="1" data-size="xlarge" data-show-faces="false" data-auto-logout-link="true" onlogin="checkLoginState();"></div>
<div id="status"></div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.2/angular.min.js"></script>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<script>
function statusChangeCallback(response)
console.log('statusChangeCallback');
console.log(response);
if (response.status === 'connected')
testAPI();
function checkLoginState()
FB.getLoginStatus(function(response)
statusChangeCallback(response);
);
window.fbAsyncInit = function()
FB.init(
appId : 'ADD YOUR APP ID HERE',
cookie : true, // enable cookies to allow the server to access the session
xfbml : true, // parse social plugins on this page
version : 'v2.8' // use graph api version 2.8
);
FB.getLoginStatus(function(response)
statusChangeCallback(response);
);
;
// Load the SDK asynchronously
(function(d, s, id)
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/sdk.js";
fjs.parentNode.insertBefore(js, fjs);
(document, 'script', 'facebook-jssdk'));
// Here we run a very simple test of the Graph API after login is
// successful. See statusChangeCallback() for when this call is made.
function testAPI()
console.log('Welcome! Fetching your information.... ');
FB.api('/me', function(response)
console.log('Successful login for: ' + response.name);
document.getElementById('status').innerHTML =
'Thanks for logging in, ' + response.name + '!';
);
</script>
</body>
</html>
FB代码来自https://developers.facebook.com/docs/facebook-login/web#example
我不想以编程方式刷新页面。这是一个单页应用程序，刷新页面将带我开始。
谢谢。
【问题讨论】：
【参考方案1】：好吧，我不明白为什么它不会自动刷新——也许是设计使然。这是我的解决方法 - 基本上添加注销按钮并自己调用 FB.logout。如果 Facebook 开发团队的某个人可以提供更优雅的解决方案，我很想知道。谢谢。
注意：在上面写的地方添加您的应用 ID，在此处添加您的应用 ID。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<link href='http://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>
<div class="row margin-bottom-small">
<div id="login-button" class="fb-login-button" data-max-rows="1" data-size="small" data-show-faces="false" data-auto-logout-link="false" onlogin="checkLoginState();"></div>
<div hidden id="logout-button" class="fb-login-button" data-max-rows="1" data-size="small" data-show-faces="false" data-auto-logout-link="false" onlogin="logout();">Log Out</div>
<div id="status"></div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.2/angular.min.js"></script>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<script>
function statusChangeCallback(response)
console.log('statusChangeCallback');
console.log(response);
if (response.status === 'connected')
testAPI();
else
// The person is not logged into your app or we are unable to tell.
//document.getElementById('status').innerHTML = 'Please log into this app.';
document.getElementById('login-button').style.display = 'block';
document.getElementById('logout-button').style.display = 'none';
function checkLoginState()
FB.getLoginStatus(function(response)
statusChangeCallback(response);
);
function logout()
FB.logout(function (response)
document.getElementById('logout-button').style.display = 'none';
document.getElementById('login-button').style.display = '';
document.getElementById('status').innerHTML = 'You have been logged out!';
);
window.fbAsyncInit = function()
FB.init(
appId : 'ADD YOUR APP ID HERE',
cookie : true, // enable cookies to allow the server to access the session
xfbml : true, // parse social plugins on this page
version : 'v2.8' // use graph api version 2.8
);
FB.getLoginStatus(function(response)
statusChangeCallback(response);
);
;
// Load the SDK asynchronously
(function(d, s, id)
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/sdk.js";
fjs.parentNode.insertBefore(js, fjs);
(document, 'script', 'facebook-jssdk'));
// Here we run a very simple test of the Graph API after login is
// successful. See statusChangeCallback() for when this call is made.
function testAPI()
console.log('Welcome! Fetching your information.... ');
FB.api('/me', function(response)
console.log('Successful login for: ' + response.name);
document.getElementById('login-button').style.display = 'none';
document.getElementById('logout-button').style.display = 'block';
document.getElementById('status').innerHTML = 'Thanks for logging in, ' + response.name + '!';
);
</script>
</body>
</html>
【讨论】：
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