如何在Android应用程序中使用几个Graph API获取Facebook Notes项目的评论？

Question

I want to show Facebook Page's Notes items with those comments and likes using Graph API.

To do that, I'm using the asyncFacebookRunner in Facebook SDK.

Steps are like this:

1. call asyncFacebookRunner.request to get Note Item with PageId

   mAsyncRunner.request(sAPIString, new NotesRequestListener(), null);

2. Response has come. ( I can't highlight function call. Sorry for inconvenient to find it.)

    public class NotesRequestListener implements com.facebook.android.AsyncFacebookRunner.RequestListener { /** * Called when the request to get notes items has been completed. * Retrieve and parse and display the JSON stream. */ @Override public void onComplete(String response, Object state) { // TODO Auto-generated method stub Log.i("My_TAG", "onComplete with response, state"); try { // process the response here: executed in background thread final JSONObject json = new JSONObject(response); JSONArray arrNotesItems = json.getJSONArray("data"); int l = (arrNotesItems != null ? arrNotesItems.length() : 0); // !!!! // This has another request call // !!!! final ArrayList<WordsItem> newItems = WordsItem.getWordsItems(arrNotesItems,getActivity()); WordsActivity.this.runOnUiThread(new Runnable() { public void run() { wordsItems.clear(); wordsItems.addAll(newItems); aa.notifyDataSetChanged(); } }); // runOnUiThread } // try catch (JSONException e) { Log.i("My_TAG", "JSON Error in response"); } // catch } // onComplete ... other override methods ... } // Request Listener < Another Class > public static ArrayList<WordsItem> getWordsItems(JSONArray arrJSON, Activity activity) { ArrayList<WordsItem> wordsItems = new ArrayList<WordsItem>(); int l = (arrJSON != null ? arrJSON.length() : 0); try { WordsItem newItem; for (int i=0; i<l; i++) { JSONObject jsonObj = arrJSON.getJSONObject(i); String sTitle = jsonObj.getString("subject"); String sNoteID = jsonObj.getString("id"); ... get another fields here ... newItem = new WordItem(...); // !!!! // This has request call for comments // !!!! ArrayList<CommentItem> arrComment = getUserComments(sNoteID); wordsItems.add(newItem); } } catch (Exception e) { e.printStackTrace(); } return wordsItems; } // getWordsItems 

3. call another asyncFacebookRunner.request to get comments of item(with NoteID)

   in getUserComments

   mAsyncRunner.request(sAPIString, new CommentRequestListener(), null);

Before getting comments(OnComplete in CommentRequestListener has not called), getWordsItems returns item array.

So I can't see the comments.

How can I wait to update UI till getting comments? (It's so ironic to synchronize asynchronized calls.)

Thanks in advance.

Answer 1

Use facebook object which has non-asynchronous request method. You need not implement listener method.

So, I suggest below means.

1. use mAsyncRunner.request for first request call.
2. use mFacebookRunner.request for second request call.

I hope it may help you:-)

Answer 2

使用FQL - Facebook的查询语言，你可以很容易地得到所有这些信息对任何特别值得注意的信息 ，也让对喜欢和在它的评论像中的链接给出的例子。