使用 Facebook SDK 3.0.1 for Android 获取电子邮件地址

本文介绍了使用 Facebook SDK 3.0.1 for Android 获取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

我目前正在开发一个应用程序，旨在通过使用 Facebook 帐户对任何用户进行身份验证.

I'm currently developing an application which aims to authenticate any user by using Facebook acoount.

我无法从用户帐户中获取用户电子邮件.我的代码在下面

I have a trouble in getting user email from user's account. My code is below

private void signInWithFacebook() { SessionTracker mSessionTracker = new SessionTracker(getBaseContext(), new StatusCallback() { public void call(Session session, SessionState state, Exception exception) { } }, null, false); String applicationId = Utility.getMetadataApplicationId(getBaseContext()); Session mCurrentSession = mSessionTracker.getSession(); if (mCurrentSession == null || mCurrentSession.getState().isClosed()) { mSessionTracker.setSession(null); Session session = new Session.Builder(getBaseContext()).setApplicationId(applicationId).build(); Session.setActiveSession(session); mCurrentSession = session; } if (!mCurrentSession.isOpened()) { Session.OpenRequest openRequest = null; openRequest = new Session.OpenRequest(FacebookLoginActivity.this); if (openRequest != null) { openRequest.setDefaultAudience(SessionDefaultAudience.FRIENDS); openRequest.setPermissions(Arrays.asList("user_birthday", "email", "user_location")); openRequest.setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK); mCurrentSession.openForRead(openRequest); } }else { Request.executeMeRequestAsync(mCurrentSession, new Request.GraphUserCallback() { public void onCompleted(GraphUser user, Response response) { Log.w("myConsultant", user.getId() + " " + user.getName() + " " + user.getLink() + " "+ response); } }); } }

我在 Android 上使用 Facebook SDK 3.0.1.我已经设置了 Facebook Graph Api 所需的权限.在响应 xml 中，没有像电子邮件这样的字段.Facebook Sdk 文档不够好，我不知道如何获取电子邮件地址.

I am using Facebook SDK 3.0.1 for Android. I have set the permissions required by the Facebook Graph Api. In the response xml, there is no such field like email. Facebook Sdk documentations are not good enough and I don't know hot to obtain email address.

提前致谢.

推荐答案

电子邮件不是返回的默认字段.相反，您应该创建一个 meRequest，并向其传递一个参数，例如:fields=email.

Email is not a default field that's returned. Instead, you should create a meRequest, and pass it a parameter like: fields=email.

Request me = Request.newMeRequest(mCurrentSession, new GraphRequestCallback() {...}); Bundle params = me.getParameters(); params.putString("fields", "email,name"); me.setParameters(params); me.executeAsync();