android - FB SDK，requestNewPublishPermissions()不调用任何回调

我一步一步地遵循了FB tutorial，但我不知道为什么这不起作用。

我所有的片段都继承自BaseFragment：

public class BaseFragment extends SherlockFragment {
    ...
    protected UiLifecycleHelper _uiHelper;
    protected boolean _isResumed = false;

    protected static final List<String> PERMISSIONS = Arrays.asList("publish_actions");
    protected static final String PENDING_PUBLISH_KEY = "pendingPublishReauthorization";
    protected boolean _pendingPublishReauthorization = false;


    protected Session.StatusCallback _callback = new Session.StatusCallback() {
        @Override
        public void call(Session session, SessionState state, Exception exception) {
            onSessionStateChange(session, state, exception);
        }
    };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        _uiHelper = new UiLifecycleHelper(getSherlockActivity(), _callback);
        _uiHelper.onCreate(savedInstanceState);
    }

    protected void onSessionStateChange(Session session, SessionState state, Exception exception) {}

    ...(all lifecycle stuff)
}

然后我有一个包含登录/注销按钮的FacebookLoginFragment：

public class FacebookLoginFragment extends BaseFragment {

    protected LoginButton _authButton;
    protected ProgressBar _loadingBar;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.facebook_login, container, false);

        _loadingBar = (ProgressBar) view.findViewById(R.id.login_progressBar);

        _authButton = (LoginButton) view.findViewById(R.id.authFacebookButton);
        _authButton.setFragment(this);
        _authButton.setReadPermissions(Arrays.asList("email", "user_birthday"));

        return view;
    }

    @Override
    protected void onSessionStateChange(Session session, SessionState state, Exception exception) {
        super.onSessionStateChange(session, state, exception);

        // LogIn process
    }
    ...
}

最后，我有一个NewsFragment，其中包含供稿的listView。每种饲料都是可共享的。
当我们单击提要的共享按钮时，适配器将调用NewsFragment.publishFeed（提要）方法。

public class NewsFragment extends BaseFragment{
    ...
    protected Feed _feedPendingPublish;

    @Override
    // => NEVER CALLED
    protected void onSessionStateChange(Session session, SessionState state, Exception exception) {
        super.onSessionStateChange(session, state, exception);

        if (_isResumed) {

            if (_pendingPublishReauthorization && state.equals(SessionState.OPENED_TOKEN_UPDATED)) {
                _pendingPublishReauthorization = false;
                if(_feedPendingPublish != null){
                    publishFeed(_feedPendingPublish);
                    _feedPendingPublish = null;
                }
            }
        }
    }

    public void publishFeed(Feed feed){

        if(_pendingPublishReauthorization){
            return;
        }

        Session session = Session.getActiveSession();

        if (session != null){

            // If permission doesn't exist, ask and return. Otherwise, send request

            List<String> permissions = session.getPermissions();
            if (!isSubsetOf(PERMISSIONS, permissions)) {
                _pendingPublishReauthorization = true;
                _feedPendingPublish = feed;

                Session.NewPermissionsRequest newPermissionsRequest = new Session
                    .NewPermissionsRequest(getSherlockActivity(), PERMISSIONS);
                session.requestNewPublishPermissions(newPermissionsRequest);

                return;
            }

            // DO stuff
        }
    }
}

问题在于发布授权后未调用NewsFragment回调。 （都不是BaseFragment，也不是FacebookLogin）。
请注意，两个片段都存在于同一活动中。

我正在使用facebook-android-sdk-3.5.2

最佳答案

我终于想通了。
正如许多人所说，这是一个onActivityResult()问题，但非常恶毒。

登录时，成功调用了FacebookLoginFragment.onSessionStateChange()，而在允许过程中从未调用NewsFragment.onSessionStateChange()。

经过几次测试，我认为这是由于静态和动态绑定造成的。我的FacebookLoginfragment在xml（静态）中直接引用，而我的NewsFragment在源代码中动态添加。
因此，包含两个片段的活动仅将onActivityResult信号发送到FacebokLoginFragment。
因此，从未调用触发回调所必需的NewsFragment.onActivityResult()。

覆盖Activity.onActivityResult()给了我预期的行为：

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    getSupportFragmentManager().findFragmentById(R.id.my_fragment_frame).onActivityResult(requestCode, resultCode, data);
}