我目前正在开发一个旨在通过Facebook帐户验证任何用户的应用程序.
我无法从用户的帐户获取用户电子邮件.我的代码如下
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 …