Fra*_*neo 22 javascript php jquery facebook facebook-javascript-sdk
我知道这个问题经常被问到,但我还没有找到解决方案.我用这个代码:
打开html标签
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://ogp.me/ns/fb#">
在我开始标记后的索引中我输入了这个
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
// init the FB JS SDK
FB.init({
appId : 'MY_APP_ID', // App ID from the app dashboard
status : true, // Check Facebook Login status
xfbml : true // Look for social plugins on the page
});
// Additional initialization code such as adding Event Listeners goes here
};
// Load the SDK asynchronously
(function(){
// If we've already installed the SDK, we're done
if (document.getElementById('facebook-jssdk')) {return;}
// Get the first script element, which we'll use to find the parent node
var firstScriptElement = document.getElementsByTagName('script')[0];
// Create a new script element and set its id
var facebookJS = document.createElement('script');
facebookJS.id = 'facebook-jssdk';
// Set the new script's source to the source of the Facebook JS SDK
facebookJS.src = '//connect.facebook.net/it_IT/all.js';
// Insert the Facebook JS SDK into the DOM
firstScriptElement.parentNode.insertBefore(facebookJS, firstScriptElement);
}());
</script>
最后,按钮
<fb:like href="http://mydomain.it/" layout="button_count" action="like" show_faces="false" share="false"></fb:like>
<script>
FB.Event.subscribe('edge.create',
function(href, widget) {
alert('Ti piace ' + href);
});
</script>
类似的工作,但没有打开警报,我在控制台中收到此错误.
Uncaught ReferenceError: FB is not defined
有解决方案吗
jsz*_*ody 21
请参阅此主题:Facebook登录中未定义FB.
您正试图FB在按钮后使用,但尚未定义:
<fb:like href="http://mydomain.it/" layout="button_count" action="like" show_faces="false" share="false"></fb:like>
<script>
FB.Event.subscribe(...
^--- FB isn't defined yet!
将该FB.Event.subscribe代码移到您的window.fbAsyncInit函数中,您可以在其中添加注释"Additional initialization code"
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