Question

我的用户第一次访问该应用时，一切正常。用户获得一个弹出窗口，其中包含授权我的应用程序的问题。但是，接下来的会话（例如刷新），他会得到一个空的弹出窗口，它会立即关闭。

我认为这是Facebook要求新的访问令牌，但问题是我发现它不是用户友好的。当弹出窗口快速打开并自动关闭时，用户认为出现了问题，或者他错过了某些内容。

enter image description here 这是代码：

window.fbAsyncInit = function() {
  FB.init({

    appId      : '', // App ID
    channelUrl : '', // Channel File
    status     : true, // check login status
    cookie     : true, // enable cookies to allow the server to access the session
    xfbml      : true  // parse XFBML
  });

  // Here we subscribe to the auth.authResponseChange JavaScript event. This event is fired
  // for any authentication related change, such as login, logout or session refresh. This means that
  // whenever someone who was previously logged out tries to log in again, the correct case below 
  // will be handled. 

  FB.Event.subscribe('auth.authResponseChange', function(response) {
    // Here we specify what we do with the response anytime this event occurs. 
    if (response.status === 'connected') {
      // The response object is returned with a status field that lets the app know the current
      // login status of the person. In this case, we're handling the situation where they 
      // have logged in to the app.

      if(accessToken)
      {
         //console.log("Connected WITH accesToken");
      testAPI();

      }
      else{
          // console.log("Connected WITHOUTaccesToken");
     FB.login(function(response) {
           // handle the response
           uid = response.authResponse.userID;
    accessToken = response.authResponse.accessToken;
    //console.log(uid);
    //console.log(accessToken);
         }, {scope: 'friends_location, user_location, user_relationships'});

    }


    } else if (response.status === 'not_authorized') {
      // In this case, the person is logged into Facebook, but not into the app, so we call
      // FB.login() to prompt them to do so. 
      // In real-life usage, you wouldn't want to immediately prompt someone to login 
      // like this, for two reasons:
      // (1) JavaScript created popup windows are blocked by most browsers unless they 
      // result from direct interaction from people using the app (such as a mouse click)
      // (2) it is a bad experience to be continually prompted to login upon page load.

     //alert("You're logged in on FB but not on the APP");
      FB.login();

    } else {
      // In this case, the person is not logged into Facebook, so we call the login() 
      // function to prompt them to do so. Note that at this stage there is no indication
      // of whether they are logged into the app. If they aren't then they'll see the Login
      // dialog right after they log in to Facebook. 
      // The same caveats as above apply to the FB.login() call here.

//   FB.login();
      //alert("You're offline on FB");
          FB.login();
    }
  });




  };

  // 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/en_US/all.js";
   ref.parentNode.insertBefore(js, ref);
  }(document));


  // Here we run a very simple test of the Graph API after login is successful. 
  // This testAPI() function is only called in those cases. 
  function testAPI() {

    FB.api('/'+uid+'/friends?fields=name,location,picture&accesstoken='+accessToken, function(response) {

    }


      //<img border="0" src="console.log(response.data[0].picture.data.url)">
      }

    });

  }

  //Logout
  function fbLogout() {
        //FB.init();
        FB.logout(function (response) {
            //Do what ever you want here when logged out like reloading the page
            //window.location.reload();
        });
    }

如何防止此空弹出窗口？

Answer 1

您正在显式调用FB.login和vs FB.getLoginStatus，它是登录对话框的包装器。这就是你总是得到弹出窗口的原因。

相反，首先调用getLoginStatus，并且只有在此失败时，才会显示一个触发login的按钮。

登录后清空Facebook弹出窗口

1 个答案: