如何使用新的 Android SDK 发送 FQL 查询

Question

我一直在 developers.facebook 网站上搜索，寻找使用新 SDK 和发送 FQL 查询的方法，但似乎一切都发生了变化，文档正在讨论各种其他请求 me 的方法或friends，但没有具体信息，例如那些朋友是否在使用我的应用程序？

所以我写了一个很好的 FQL 查询

select uid, name, pic_square, is_app_user from user where uid in (select uid2 from friend where uid1 = me())

现在，我所要做的就是运行它。

因为返回朋友列表的唯一请求似乎是 Request.executeMyFriendsRequestAsync 和 Request.newMyFriendsRequest 我认为他们会是我的朋友，但两者都不允许对 FQL 查询进行微调。

我如何发送查询并取回朋友列表或至少JSONArray？

Hackbook - FQL 查询教程使用的是旧版本的 SDK，我不知道该怎么办。

更新：

我添加了这些代码行，认为它可以让我创建这个查询：

public void onCreate(Bundle savedInstanceState) {
    // SOME CODE
    this.openSession();
}

protected void onSessionStateChange(SessionState state, Exception exception) {
    if (state.isOpened()) {
        Session activeSession = getSession().getActiveSession();
        facebook.setAccessToken(activeSession.getAccessToken());
        facebook.setAccessExpires(activeSession.getExpirationDate().getTime());

        Request req = Request.newMyFriendsRequest(activeSession, new GraphUserListCallback() {

            @Override
            public void onCompleted(List<GraphUser> users, Response response) {
                System.out.println(response.toString());

            }
        });
        Bundle params = new Bundle();
        params.putString("method", "fql.query");
        params.putString("query", "select uid, name, pic_square, is_app_user " + "from user where uid in "
                + "(select uid2 from friend where uid1 = me())");
        req.setParameters(params);
        Request.executeBatchAsync(req);

    }
}

我这样做了，以为它会编辑请求并添加我想要的信息，但我收到了这个错误：

10-31 09:36:31.647: E/AndroidRuntime(15986): java.lang.NullPointerException
10-31 09:36:31.647: E/AndroidRuntime(15986):    at com.sample.facebook.to.db.MainActivity$1.onCompleted(MainActivity.java:62)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at com.facebook.Request$2.onCompleted(Request.java:269)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at com.facebook.Request$4.run(Request.java:1197)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at android.os.Handler.handleCallback(Handler.java:587)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at android.os.Handler.dispatchMessage(Handler.java:92)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at android.os.Looper.loop(Looper.java:130)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at android.app.ActivityThread.main(ActivityThread.java:3691)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at java.lang.reflect.Method.invokeNative(Native Method)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at java.lang.reflect.Method.invoke(Method.java:507)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665)
10-31 09:36:31.647: E/AndroidRuntime(15986):    at dalvik.system.NativeStart.main(Native Method)

Answer 1

你会这样做：

String fqlQuery = "select uid, name, pic_square, is_app_user from user where uid in (select uid2 from friend where uid1 = me())";
Bundle params = new Bundle();
params.putString("q", fqlQuery);

Session session = Session.getActiveSession();
Request request = new Request(session, 
    "/fql", 
    params, 
    HttpMethod.GET, 
    new Request.Callback(){ 
        public void onCompleted(Response response) {
        Log.i(TAG, "Got results: " + response.toString());
    }
});
Request.executeBatchAsync(request);

您基本上是在向“/fql”端点发出 Graph API 请求，并将您的查询传递给“q”参数。

Answer 2

试试这个方法

void a(){
         String fqlQuery = "{" +
                 "'friends':'SELECT uid2 FROM friend WHERE uid1 = me() LIMIT 25'," +
                 "'friendinfo':'SELECT uid, name, pic_square FROM user WHERE uid IN " +
                 "(SELECT uid2 FROM #friends)'," +
                 "}";
           Bundle params = new Bundle();
           params.putString("q", fqlQuery);
           Session session = Session.getActiveSession();
           Request request = new Request(session,
               "/fql",                         
               params,                         
               HttpMethod.GET,                 
               new Request.Callback(){         
                   public void onCompleted(Response response) {
                       Log.i(TAG, "Result: " + response.toString());
                   }                  
           }); 
           Request.executeBatchAsync(request);    
    }

Answer 3

这里有一个讨论这个话题的链接：FQL using facebook android SDK

您也可以使用以下格式发出 Graph API 调用：graph.facebook.com/fql?q=QUERY

所以在你的情况下，它可能看起来像：graph.facebook.com/fql?q=select uid, name, pic_square, is_app_user from user where uid in (select uid2 from friend where uid1 = me())

编辑： 似乎此功能的示例位于示例应用程序“Hackbook”中 https://github.com/facebook/facebook-android-sdk/blob/master/examples/Hackbook/src/com/facebook/android/FQLQuery.java

最值得注意的是这段代码（第 61 行）：

String query = mFQLQuery.getText().toString();
Bundle params = new Bundle();
params.putString("method", "fql.query");
params.putString("query", query);
Utility.mAsyncRunner.request(null, params, new FQLRequestListener());