javascript - Facebook Javascript API 调用 me/invitable_friends 在 cordova 上仅返回 25 个结果，但在 Web 上则不然

Question

我正在 cordova 上开发一款使用 Facebook 集成的游戏。我有一个在安全网站上运行的 Facebook 游戏 Canvas 。

好友请求在网站版本上运行良好(返回超过 25 个结果，因为我正在迭代也返回的 paging.next url)。

但是，在 cordova 版本 (android) 上，它只返回第一个结果集 25。它仍然具有 page.next url JSON 字段，但它只返回一个 type=website 的响应对象。

其他人也遇到过这种情况吗？

Answer 1

经过大量挖掘后，我发现 Android 版 FacebookLib 中处理请求的方式存在问题。 com.phonegap.plugins.facebookconnect 插件的当前版本使用 Android FacebookSDK 3.21.1，因此我不确定这是否仍然是 v4 的问题。

带有分页 URL 的图形结果用于请求下一页，但使用整个 URL，其中包括 https://graph.facebook.com/以及通常的 graphAction 会导致返回不正确的结果集。但是我确定，如果您删除架构和主机部分，它将是正确的。

我修改了 ConnectPlugin.java 以检查是否从 graphAction 中删除了任何架构和主机。现在看起来效果很好。

之前的ConnectPlugin.java:

private void makeGraphCall()  {
    Session session = Session.getActiveSession();

    Request.Callback graphCallback = new Request.Callback() {

        @Override
        public void onCompleted(Response response) {
            if (graphContext != null) {
                if (response.getError() != null) {
                    graphContext.error(getFacebookRequestErrorResponse(response.getError()));
                } else {
                    GraphObject graphObject = response.getGraphObject();

                    JSONObject innerObject = graphObject.getInnerJSONObject();
                    graphContext.success(innerObject);
                }
                graphPath = null;
                graphContext = null;
            }
        }
    };

    //If you're using the paging URLs they will be URLEncoded, let's decode them.
    try {
        graphPath = URLDecoder.decode(graphPath, "UTF-8");
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }

    String[] urlParts = graphPath.split("\\?");
    String graphAction = urlParts[0];
    Request graphRequest = Request.newGraphPathRequest(null, graphAction, graphCallback);
    Bundle params = graphRequest.getParameters();

    if (urlParts.length > 1) {
        String[] queries = urlParts[1].split("&");

        for (String query : queries) {
            int splitPoint = query.indexOf("=");
            if (splitPoint > 0) {
                String key = query.substring(0, splitPoint);
                String value = query.substring(splitPoint + 1, query.length());
                params.putString(key, value);

                if (key.equals("access_token")) {
                    if (value.equals(session.getAccessToken())) {
                        Log.d(TAG, "access_token URL: " + value);
                        Log.d(TAG, "access_token SESSION: " + session.getAccessToken());
                    }
                }
            }
        }
    }
    params.putString("access_token", session.getAccessToken());

    graphRequest.setParameters(params);
    graphRequest.executeAsync();
}

ConnectPlugin.java 之后:

private void makeGraphCall()  {
    Session session = Session.getActiveSession();

    Request.Callback graphCallback = new Request.Callback() {

        @Override
        public void onCompleted(Response response) {
            if (graphContext != null) {
                if (response.getError() != null) {
                    graphContext.error(getFacebookRequestErrorResponse(response.getError()));
                } else {
                    GraphObject graphObject = response.getGraphObject();

                    JSONObject innerObject = graphObject.getInnerJSONObject();
                    graphContext.success(innerObject);
                }
                graphPath = null;
                graphContext = null;
            }
        }
    };

    //If you're using the paging URLs they will be URLEncoded, let's decode them.
    try {
        graphPath = URLDecoder.decode(graphPath, "UTF-8");
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }

    String[] urlParts = graphPath.split("\\?");
    String graphAction = urlParts[0];

    ///////////////////////
    // SECTION ADDED
    ///////////////////////
    final String GRAPH_BASE_URL = "https://graph.facebook.com/";
    if(graphAction.indexOf(GRAPH_BASE_URL)==0) {
        URL graphUrl = null;
        try {
            graphUrl = new URL(graphAction);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
        graphAction = graphUrl.getPath();
    }
    ///////////////////////
    // END SECTION ADDED
    ///////////////////////

    Request graphRequest = Request.newGraphPathRequest(null, graphAction, graphCallback);
    Bundle params = graphRequest.getParameters();

    if (urlParts.length > 1) {
        String[] queries = urlParts[1].split("&");

        for (String query : queries) {
            int splitPoint = query.indexOf("=");
            if (splitPoint > 0) {
                String key = query.substring(0, splitPoint);
                String value = query.substring(splitPoint + 1, query.length());
                params.putString(key, value);

                if (key.equals("access_token")) {
                    if (value.equals(session.getAccessToken())) {
                        Log.d(TAG, "access_token URL: " + value);
                        Log.d(TAG, "access_token SESSION: " + session.getAccessToken());
                    }
                }
            }
        }
    }
    params.putString("access_token", session.getAccessToken());

    graphRequest.setParameters(params);
    graphRequest.executeAsync();
}