如何在 Facebook Android sdk 4.0 中使用 Graph Request 获取登录用户的电子邮件地址 [英] How to get the logged user's email address with Graph Request in Facebook Android sdk 4.0

查看:36
本文介绍了如何在 Facebook Android sdk 4.0 中使用 Graph Request 获取登录用户的电子邮件地址的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

一旦用户使用 Facebook (sdk 4.0) 登录我的 Android 应用程序,我就会尝试获取他的电子邮件地址.我读过很多帖子问同样的事情,但我仍然无法让它工作.我只是用代码登录用户

I'm trying to get the user's email address once he's logged into my Android app with Facebook (sdk 4.0). I've read many posts asking the same thing but I still couldn't make it work. I simply log the user in with the code

LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("public_profile", "user_friends", "email"));

然后我用

LoginManager.getInstance().registerCallback(fbCallbackManager,
            new FacebookCallback<LoginResult>() {
                @Override
                public void onSuccess(LoginResult loginResult) {
                    System.out.println(loginResult.getAccessToken().toString());

                    GraphRequest request = GraphRequest.newMeRequest(
                            loginResult.getAccessToken(),
                            new GraphRequest.GraphJSONObjectCallback() {
                                @Override
                                public void onCompleted(
                                        JSONObject object,
                                        GraphResponse response) {
                                    System.out.println(object.toString());

                                }
                            });
                    Bundle parameters = new Bundle();
                    parameters.putString("fields", "email");
                    request.setParameters(parameters);
                    request.executeAsync();
                }

                @Override
                public void onCancel() {
                    // App code
                }

                @Override
                public void onError(FacebookException exception) {
                    // App code
                }
            });

输出只是

{AccessToken token:ACCESS_TOKEN_REMOVED permissions:[public_profile, contact_email, user_friends, email, basic_info]}
{"id":"xxxxxxxxxxxxxxx"}

即使我删除了字段"部分,我也会得到一个包含一堆用户公共信息的 JSON,但从来没有电子邮件字段.我正在我自己的 Facebook 帐户上对此进行测试,并且我确实有一个与之关联的电子邮件地址.

Even if I remove the "fields" part, I get a JSON with a bunch of the user's public info, but never the email field. I'm testing this on my own Facebook account, and I do have an email address associated to it.

推荐答案

您可以通过以下方式获取登录用户的电子邮件,但请注意,

You can get the logged user email as follows , But note that ,

  1. 他们不保证您会获得电子邮件地址 阅读这里 .

在某些情况下,虽然用户提供了电子邮件,但如果电子邮件无效,则它不会通过请求发送.

In some cases, though user has provided an email, it will not come through request, if the email is not valid.

@Override
public void onSuccess(LoginResult loginResult) {


GraphRequest request = GraphRequest.newMeRequest( AccessToken.getCurrentAccessToken(),
        new GraphRequest.GraphJSONObjectCallback() {
            @Override
            public void onCompleted(JSONObject object,GraphResponse response) {
            try {
                String  email=object.getString("email");
                Log.d(TAG + "user email ", email);
                } catch (JSONException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

            }

            });

            request.executeAsync();                        
 }

这篇关于如何在 Facebook Android sdk 4.0 中使用 Graph Request 获取登录用户的电子邮件地址的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
相关文章
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆