如何邀請與AS3的Facebook應用程序的朋友

Question

我正在做一個Facebook應用程序（Flash），我必須邀請朋友。我到達的每個地方都找到了這段代碼，但不適合我，因爲result.request_ids爲空。我需要知道用戶邀請了多少朋友！請幫忙！！！

代碼：

private function inviteFriends():void{ 
var dat:Object = new Object(); 
dat.message = "Let's invite friends for our Super Extra Max Facebook App, more info go to http://blog.ukasz.com"; 
dat.title = 'Super Extra Max Facebook App'; 
// filtering for non app users only 
dat.filters = ['app_non_users']; 
//You can use these two options for diasplaying friends invitation window 'iframe' 'popup' 
Facebook.ui('apprequests', dat, onUICallback, 'popup'); 

}

private function onUICallback(result:Object):void{ 
if(result == null){ 
    trace('User closed the pop up window without inviting any friends'); 
    return 
} 
var invitedUsers:Array = new Array(); 
invitedUsers = result.request_ids as Array; 
trace('You Have Invited ', invitedUsers.length,' friends'); 
//Simple if else if you want user to invite certain amount of friends 
if(invitedUsers.length > 1){ 
    trace('GREAT, USER IS GENERATING TRAFFIC'); 
}else{ 
    trace('No Good, User invited only one friend.'); 
} 

}

Answer 1

function invite(evt:MouseEvent):void 
    { 
     var obj:Object = 
     { 
      message: "", 
      title: "" 
     }; 
     Facebook.ui("apprequests", obj, cbi, "iframe"); 
    } 

function cbi(res):void 
    { 
     field_txt.appendText(res.request_ids); 
    }