failing to do fb like to postId I have just shared successfully

Question

I have shared a url from my android app to FB:

I then save aside (hard coded) the postId

I try to do "fb like" to that post

using this code, but get an error:

Button socialBtn3 = (Button) dialog
                        .findViewById(R.id.socialBtn3);
                socialBtn3.setOnClickListener(new OnClickListener() {

                    String fbPostId = "685560152_10153809399380153";
                    @Override
                    public void onClick(View v) {

                        new LikeFbPostAsyncTask().execute(fbPostId);
                    }
                });

and this:

public class LikeFbPostAsyncTask extends AsyncTask<String, Void, Void> {

    public LikeFbPostAsyncTask() {
    }

    @Override
    protected void onPreExecute() {
        Log.i("LikeFbPostAsyncTask", "Starting web task...");
    }

    @Override
    protected Void doInBackground(String... fbPostId) {

        Request likeRequest = new Request(Session.getActiveSession(),
                fbPostId + "/likes", null, HttpMethod.POST,
                new Request.Callback() {

                    @Override
                    public void onCompleted(Response response) {
                        Log.i(TAG, response.toString());

                        // how to return to ui thread?
                        // return response;
                    }
                });
        Request.executeBatchAndWait(likeRequest);
        return null;

    }

    @Override
    protected void onPostExecute(Void res) {

    }
}

{Response: responseCode: 404, graphObject: null, error: {HttpStatus: 404, errorCode: 803, errorType: OAuthException, errorMessage: (#803) Some of the aliases you requested do not exist: [Ljava.lang.String;@4284cd10}, isFromCache:false}

how can i solve this?

Answer 1

You are sending an array of String arguments to the AsyncTask (String...). When extracting the desired string from the array you should do :

    Request likeRequest = new Request(Session.getActiveSession(),
            fbPostId[0] + "/likes", null, HttpMethod.POST,
            new Request.Callback() {

instead of:

Request likeRequest = new Request(Session.getActiveSession(),
        fbPostId + "/likes", null, HttpMethod.POST,
        new Request.Callback() {