如何通过 facebook SDK 在 iOS 中获取用户名和密码

Question

facebook sdk 新手，找不到合适的答案。我正在使用 facebook sdk 仅登录到我的 iOS 应用程序。登录时，我想获取登录人的用户名和电子邮件地址。如何在不使用 FacebookGraph API 的情况下获取这些详细信息

Answer 1

检查一下...

     - (void)sessionStateChanged:(FBSession *)session
                  state:(FBSessionState) state
                  error:(NSError *)error    {

switch (state) {
    case FBSessionStateOpen:
        if (!error) {
            // We have a valid session
            NSLog(@" Info : Valid FBSession found...");
            [self fetchFacebookUserInfo];
        }
        break;
    case FBSessionStateClosed:
    case FBSessionStateClosedLoginFailed: {
          NSLog(@" Info : No Valid FBSession found***");
    }
        break;
    default:
        break;
}
}


 - (void)fetchFacebookUserInfo {
       if ([self sessionIsOpen]) {
    [FBRequestConnection startForMeWithCompletionHandler:^(FBRequestConnection *connection,
                                                           id<FBGraphUser> user,
                                                           NSError *error) {
        if (!error) {
             NSLog(@"Username %@",user.name);
             NSLog(@"Email %@",[user objectForKey:@"email"]);
            }
  }
  }