Android的Facebook的会话问题 [英] Android Facebook session issue

问题描述

我已经使用下列code为Facebook的身份验证，它工作正常，但是当我已经取消了认证，并试图再次验证应用程序崩溃和日志的产生的原因：的Java。 lang.UnsupportedOperationException：会话：一个试图打开一个已经打开的会话
在调试我得到了这样的

  {会话状态：创建令牌：{AccessToken令牌：ACCESS_TOKEN_REMOVED权限：[]}，APPID：XXXXXXXXXXXXXXX}
 

我该如何解决这个issue.Please帮助me.Thanks提前

 私人无效askFacebbokAuthentication（）{

        会话会话= Session.getActiveSession（）;
        如果（session.isOpened（））{

            Facebook的=真;
            如果（！hasPublishPermission（））{

                session.requestNewPublishPermissions（新NewPermissionsRequest（
                        MyActivity.this，权限））;

            }
        } 其他 {
            Session.OpenRequest openRequest = NULL;
            openRequest =新Session.OpenRequest（MyActivity.this）;
            如果（openRequest！= NULL）{

                openRequest.setDefaultAudience（SessionDefaultAudience.FRIENDS）;

                如果（！hasPublishPermission（））{
                    openRequest.setPermissions（权限）;
                }
                session.openForPublish（openRequest）;
            }
        }
    }
 

解决方案

我也有同样的问题，但我解决了这些行。据我所知，我们不能要求一个会话这是已经打开新的权限。

 会话的会话=新的Session（本）;
    Session.setActiveSession（会议）;
    session.openForRead（新Session.OpenRequest（本）.setCallback（回调）.setPermissions（Arrays.asList（your_permissions）））;
 

我希望你已经添加以下​​行 onActivityResult（）

  Session.getActiveSession（）onActivityResult（这一点，要求code，因此code，数据）。
 

I have used following code for Facebook authentication and it is working fine, but when I have cancelled the authentication and tried to authenticate again the app crashed and the log was Caused by: java.lang.UnsupportedOperationException: Session: an attempt was made to open an already opened session.
On debug I got like this

{Session state:CREATED, token:{AccessToken token:ACCESS_TOKEN_REMOVED permissions:[]}, appId:xxxxxxxxxxxxxxx}

How can I solve this issue.Please help me.Thanks in advance

private void askFacebbokAuthentication() {

        Session session = Session.getActiveSession();
        if (session.isOpened()) {

            facebook = true;
            if (!hasPublishPermission()) {

                session.requestNewPublishPermissions(new NewPermissionsRequest(
                        MyActivity.this, PERMISSIONS));

            }
        } else {
            Session.OpenRequest openRequest = null;
            openRequest = new Session.OpenRequest(MyActivity.this);
            if (openRequest != null) {

                openRequest.setDefaultAudience(SessionDefaultAudience.FRIENDS);

                if (!hasPublishPermission()) {
                    openRequest.setPermissions(PERMISSIONS);
                }
                session.openForPublish(openRequest);
            }
        }
    }

解决方案

I too had same problem, but i solved with these lines. To my knowledge we cannot request a session for new permissions which is already opened.

Session session = new Session(this);
    Session.setActiveSession(session);
    session.openForRead(new Session.OpenRequest(this).setCallback(callback).setPermissions(Arrays.asList("your_permissions")));

I hope you already added below line in onActivityResult()

Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);

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