FB JS SDK-顯示粉絲團並檢查按讚

我也是現在才知道~原來在粉絲團按讚就等於加入粉絲團了!!

粉絲團內容+按讚使用like_box,
如果要跟網路上一樣精簡只有讚按紐可以用like_button

官網上這些被列入plugin, 還有預覽跟gen code很貼心!!
http://developers.facebook.com/docs/reference/plugins/like-box/

在送出page前check有沒有加入粉絲團一樣用FB.api...
此頁是接在之前登入APP後做的~ 所以能來到這的user是都已經登入過囉!!

---html/jsp include
<script src="http://connect.facebook.net/zh_TW/all.js"></script>

<div id="like_box" style="margin-top:5px;display:none">
       <div class="fb-like-box" data-href="http://www.facebook.com/tyepb" data-width="300" data-show-faces="true" data-stream="false" data-header="false"></div>      
</div>

---script/js file
FB.init({
    appId: '{APP_ID}', // App ID
    //channelURL: '....................', // Channel File
    status: true, // check login status
    cookie: true, // enable cookies to allow the server to access the session
    oauth: false, // enable OAuth 2.0
    xfbml: true  // parse XFBML
});

 function fan2()  {
    var pid = '{PAGE_ID}';          
    var isFan = false;
    FB.api('/me/likes/'+pid,function(response) {
        //console.log(response);
        if( response.data ) {
            if(response.data)  {
                for(var i = 0 ; i < response.data.length ; i++)  {
                    if(pid == response.data[i].id)  {
                        isFan = true;
                        //console.log('??it is fan!!');
                        //return true;
                    }
                }
            }
            if(isFan)  {
                //do something when user like fans page
            }  else  {
                //do something when user unlike fans page
                return false;
            }
        } else {
            //user not login/or not connect FB APP
            return false;
        }
    });
    return false;
}