Javascript 在控制台中调用 FB.init() 错误之前调用 FB.getLoginStatus()
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FB.getLoginStatus() called before calling FB.init() error in console
提问by mauzilla
I am trying to check if a user is logged in with my app, but I am getting a
我正在尝试检查用户是否使用我的应用程序登录，但我收到了
FB.getLoginStatus() called before calling FB.init().
在调用 FB.init() 之前调用 FB.getLoginStatus()。
error in the console. The setSizeappears to work (although not entirely 1,710 height but definitely around 1,500) so I cannot understand why the getLoginStatus()gives the error.
控制台中的错误。在setSize出现工作（虽然不是全部1710的高度，但肯定1500左右），所以我不明白为什么getLoginStatus()给错误。
I also double checked with the appID (removed below) and that is definitely correct. The script is included via <script src="file.js" type="text/javascript"></script>right below my <body>and <div id="fb-root"></div>div.
我还仔细检查了 appID（在下面删除），这绝对是正确的。该脚本包含<script src="file.js" type="text/javascript"></script>在 my<body>和<div id="fb-root"></div>div正下方。
window.fbAsyncInit = function() {
FB.init({
appId : 'APPID', // App ID
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
oauth : true, // enable OAuth 2.0
xfbml : true // parse XFBML
});
FB.Canvas.setSize({width: 520, height: 1710});
FB.Canvas.setAutoResize(100);
FB.getLoginStatus(function(response) {
if (response.authResponse) {
// logged in and connected user, someone you know
alert("?");
} else {
// no user session available, someone you dont know
alert("asd");
}
});
};
采纳答案by Abby
You need to load the api asynchronously. Try removing your <script src="connect.facebook.net/en_US/all.js"></script>and updating your JS to:
您需要异步加载 api。尝试删除您<script src="connect.facebook.net/en_US/all.js"></script>的 JS 并将其更新为：
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : 'YOUR_APP_ID', // App ID
channelURL : '//WWW.YOUR_DOMAIN.COM/channel.html', // Channel File
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
oauth : true, // enable OAuth 2.0
xfbml : true // parse XFBML
});
//
// All your canvas and getLogin stuff here
//
};
// Load the SDK Asynchronously
(function(d){
var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
d.getElementsByTagName('head')[0].appendChild(js);
}(document));
</script>
Oh and check the documentation!
哦，检查文档！
回答by TheRightChoyce
This error will also occur if you don't provide an appId to FB.init. Example:
如果您不向 FB.init 提供 appId，也会发生此错误。例子：
FB.init({
appId: ''
, channelUrl: '//domain/channel.html'
, status: true
, cookie: true
});
Will result in:
会导致：
FB.getLoginStatus() called before calling FB.init().
在调用 FB.init() 之前调用 FB.getLoginStatus()。
