fb_graph gem 创建的 Rails 应用程序。链接展示了此工作流程，您将单击“邀请好友”按钮，然后会弹出好友列表，其中有一个按钮可让您邀请相应的用户。
http://www.quora.com/User-Acquisition/What-is-the-best-invite-a-friend-flow-for-mobile
是否有一种方法可以在fb_graph中实现这一点？
没问题。假设您已经有了一个可运行的fb_graph实现，您可以使用以下命令（来自https://github.com/nov/fb_graph）获取好友列表：
FbGraph::User.me(fb_token).friends
您可以使用这个来生成您的好友列表UI，然后邀请选定的好友，就像这样（未经测试的修改来自前面的链接，以及https://developers.facebook.com/docs/reference/dialogs/requests/）：
app_request = FbGraph::User.me(token).app_request!(
:message => 'invitation message',
:to => friend.uid
)
前面的代码也可以接受逗号分隔的UID集合。
我会让你设计和编写用户界面，但使用fb_graph肯定是可能的。如果你决定扩大范围，这两个链接应该是非常有用的。
<script type="text/javascript">
function logResponse(response) {
if (console && console.log) {
console.log('The response was', response);
}
}
$(function(){
// Set up so we handle click on the buttons
$('#postToWall').click(function() {
FB.ui(
{
method : 'feed',
link : $(this).attr('data-url')
},
function (response) {
// If response is null the user canceled the dialog
if (response != null) {
logResponse(response);
}
}
);
});
$('#sendToFriends').click(function() {
FB.ui(
{
method : 'send',
link : $(this).attr('data-url')
},
function (response) {
// If response is null the user canceled the dialog
if (response != null) {
logResponse(response);
}
}
);
});
$('#sendRequest').click(function() {
FB.ui(
{
method : 'apprequests',
message : $(this).attr('data-message')
},
function (response) {
// If response is null the user canceled the dialog
if (response != null) {
logResponse(response);
}
}
);
});
});
</script>
正文标签：
<body>
<div id="fb-root"></div>
<script type="text/javascript">
window.fbAsyncInit = function() {
FB.init({
appId : 'xxxxxxxxxxxxxxxxxxx', // App ID
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
// Listen to the auth.login which will be called when the user logs in
// using the Login button
FB.Event.subscribe('auth.login', function(response) {
// We want to reload the page now so PHP can read the cookie that the
// Javascript SDK sat. But we don't want to use
// window.location.reload() because if this is in a canvas there was a
// post made to this page and a reload will trigger a message to the
// user asking if they want to send data again.
window.location = window.location;
});
FB.Canvas.setAutoGrow();
};
// Load the SDK Asynchronously
(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/all.js";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
</script>
<header class="clearfix">
<?php if (isset($basic)) { ?>
<p id="picture" style="background-image: url(https://graph.facebook.com/<?php echo he($user_id); ?>/picture?type=normal)"></p>
<div>
<h1>Welcome, <strong><?php echo he(idx($basic, 'name')); ?></strong></h1>
<p class="tagline">
This is your app
<a href="<?php echo he(idx($app_info, 'link'));?>" target="_top"><?php echo he($app_name); ?></a>
</p>
<div id="share-app">
<p>Share your app:</p>
<ul>
<li>
<a href="#" class="facebook-button" id="postToWall" data-url="<?php echo AppInfo::getUrl(); ?>">
<span class="plus">Post to Wall</span>
</a>
</li>
<li>
<a href="#" class="facebook-button speech-bubble" id="sendToFriends" data-url="<?php echo AppInfo::getUrl(); ?>">
<span class="speech-bubble">Send Message</span>
</a>
</li>
<li>
<a href="#" class="facebook-button apprequests" id="sendRequest" data-message="Test this awesome app">
<span class="apprequests">Send Requests</span>
</a>
</li>
</ul>
</div>
</div>
<?php } else { ?>
<div>
<h1>Welcome</h1>
<div class="fb-login-button" data-scope="user_likes,user_photos"></div>
</div>
<?php } ?>
</header>
fb_graph宝石。 - locoboy