FacebookProfileConnector.java 文件源码

@Override
public void connect(Activity activity)
{
    Session session = Session.getActiveSession();

    // TODO: I think we should validate the session here, but to what
    // extent?

    MadFacebookStatusCallback statusCallback =
            new MadFacebookStatusCallback();

    // Check if the session is already open.
    if (!session.isOpened() && !session.isClosed())
    {
        OpenRequest openRequest = new OpenRequest(activity);
        session.openForRead(openRequest
                .setCallback(statusCallback));
    }
    else
    {
        Session.openActiveSession(activity, true,
                statusCallback);
    }

}