Facebook SDK 4.x Android 发布为 Facebook 页面

Question

好的，我已经理解了这个问题，但是为了帮助其他遇到同样问题的人，我想分享一下解决方法。基本上，我需要让帖子以Facebook用户拥有的页面身份发布（例如：我是John Doe，我是Rum Ham页面的管理员，我想要在Rum Ham页面发布帖子）。

- AndrewSmiley

Answer 1

所以，基本上答案看起来像这样

首先，您需要使用这行代码登录用户

    LoginManager.getInstance().logInWithPublishPermissions(this, Arrays.asList("publish_actions", "manage_pages", "publish_pages"));

然后，您需要获取我们希望发布到的页面的访问令牌

 Bundle params = new Bundle();
            //ok so access token here is "app_ID|app_secret"
            params.putString("access_token", accessToken);
            params.putString("fields", "id");
            GraphRequest request = new GraphRequest(null, "me", params, HttpMethod.GET, new GraphRequest.Callback() {
                public void onCompleted(GraphResponse response) {
                    FacebookRequestError error = response.getError();
                    if (error != null) {
                        Log.e("Error", error.getErrorMessage());
                    } else {
                        JSONObject values = response.getJSONObject();
                        try {
                            //so I have to get the user ID first
                            String id = values.getString("id");
                            Bundle p = new Bundle();
                            p.putString("access_token", accessToken);
                            //yay nest the graph requests
                            //once we get the id we can get their pages
                            GraphRequest pagesRequest = new GraphRequest(null, "/" + id + "/accounts", p, HttpMethod.GET, new GraphRequest.Callback() {
                                public void onCompleted(GraphResponse response) {
                                    FacebookRequestError error = response.getError();
                                    if (error != null) {
                                        Log.e("Error", error.getErrorMessage());
                                    } else {
                                        //ok so here, we're getting the pages back in a few JSON wrappers
                                        JSONObject values = response.getJSONObject();
                                        JSONArray array = null;
                                        try {
                                            array = values.getJSONArray("data");
                                         //ok, so here we're just iterating through the pages a user has, obviously you can handle this accordingly..                             
                                         for (int i = 0; i < array.length(); i++) {
                                        //ok, here's how to actually get the token                                                
                                       String access_token = array.getJSONObject(i).getString("access_token")   



                                            }
                                        } catch (JSONException e) {
                                            e.printStackTrace();
                                        }

                                    }
                                }
                            });
                            GraphRequest.executeAndWait(pagesRequest);

                        } catch (Exception e) {
                            e.printStackTrace();
                        }

                    }
                }
            });
            GraphRequest.executeAndWait(request);
        }

好的，一旦我们得到了访问令牌页面，这就是Facebook在他们的参考页面中拒绝告诉你的真正问题所在。所以，请忘记任何你读过的需要向他们提交应用程序进行审核的内容。我所要做的就是创建一个新的访问令牌就像这样：

//create a new access token, facebook refers to this as a page access token
AccessToken token = new AccessToken("page_access_token", AccessToken.getCurrentAccessToken().getUserId(), Arrays.asList("publish_actions", "manage_pages", "publish_pages"), null, AccessTokenSource.FACEBOOK_APPLICATION_SERVICE,
                AccessToken.getCurrentAccessToken().getExpires(), AccessToken.getCurrentAccessToken().getLastRefresh());
//then we simply update our current access token
        AccessToken.setCurrentAccessToken(token);

现在，我们还没有完成。最后，我们需要实际调用API来创建帖子：

  Bundle params = new Bundle();
            params.putString("message", "Contents of message");
            //here, token is our newly created AccessToken object
            GraphRequest request = new GraphRequest(token, "/pageid/feed", params, HttpMethod.POST, new GraphRequest.Callback() {
                public void onCompleted(GraphResponse response) {
                    FacebookRequestError error = response.getError();
                    if (error != null) {
                        Log.e("Error", error.getErrorMessage());

                    } else {
                        //do your own processing here for success
                    }


                }
            });
            GraphRequest.executeAndWait(request);
        }
    }

就是这样了。希望这对某人有所帮助！

- AndrewSmiley