检测facebook用户是否登录而没有弹出窗口

Question

我试图检查用户是否登录Facebook(并重定向到其他页面),但我无法打开任何弹出窗口:

这将工作:但如果用户未登录Facebook,将打开弹出窗口

FB.login(function(response) {
    if(response.status == 'connected')
              /*Redirect here*/
});

这是我的另一个网络,但不是在这里

window.fbAsyncInit = function() {
                FB.init({
                  appId      : myAppid, // App ID 
                  status     : true, // check login status
                  cookie     : true, // enable cookies to allow the server to access the session
                  xfbml      : true  // parse XFBML
                });
                FB.Event.subscribe('auth.login', function() {
                      /* REDIRECT HERE */
                });
              };
              // Load the SDK Asynchronously
              (function(d){
                 var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
                 if (d.getElementById(id)) {return;}
                 js = d.createElement('script'); js.id = id; js.async = true;
                 js.src = "//connect.facebook.net/es_ES/all.js";
                 ref.parentNode.insertBefore(js, ref);
               }(document));

这有什么线索吗？

Answer 1

您可以使用FB.getLoginStatus获取所需的信息.

在当前浏览器会话中第一次FB.getLoginStatus调用,或者JS SDK是初始化的status: true,响应对象将由SDK缓存.后续调用FB.getLoginStatus将从此缓存响应中返回数据.

文档示例:

FB.getLoginStatus(function(response) {
  if (response.status === 'connected') {
    // the user is logged in and has authenticated your
    // app, and response.authResponse supplies
    // the user's ID, a valid access token, a signed
    // request, and the time the access token 
    // and signed request each expire
    var uid = response.authResponse.userID;
    var accessToken = response.authResponse.accessToken;
  } else if (response.status === 'not_authorized') {
    // the user is logged in to Facebook, 
    // but has not authenticated your app
  } else {
    // the user isn't logged in to Facebook.
  }
});