reddit的整合Android应用

我要reddit的集成到Android应用程序。我并不需要太多。只有登录后，一个新的链接。
（有点像Facebook上的份额）。

I need to integrate Reddit to android app. I don't need much. Only log in and post a new link. (something like a share on Facebook).

但我挣扎一开始。

任何帮助将b AP preciated。

Any help will b appreciated.

编辑：
以下是我迄今所取得，我得到的modhash和验证码，但是当我试图提交新的链接它给了我这样的：
{JSON：{错误：[[USER_REQUIRED，请登录要做到这一点，空]]}}

Here is what I made so far, I get the modhash and captcha but when I try to submit new link it gives me this: {"json": {"errors": [["USER_REQUIRED", "please login to do that", null]]}}

 private void getModhash(){
    modhash = dbHandler.getUserModahash();
    if(modhash.equals("")){

        String jsonString = "";
        DefaultHttpClient httpclient = new DefaultHttpClient();

        final ArrayList<NameValuePair> fields = new ArrayList<NameValuePair>(3);
        fields.add(new BasicNameValuePair("user", "my_username"));//will ask for a user to enter the password later
        fields.add(new BasicNameValuePair("passwd", "my_password"));
        fields.add(new BasicNameValuePair("api_type", "json"));

        final HttpPost request = new HttpPost("https://ssl.reddit.com/api/login");

        try {
            request.setEntity(new UrlEncodedFormEntity(fields, HTTP.UTF_8));

            HttpResponse response = httpclient.execute(request);
            HttpEntity entity = response.getEntity();

            jsonString = EntityUtils.toString(entity);

            System.out.println("response from redit = " + jsonString);

            JSONObject jObject = new JSONObject(jsonString);
            modhash = jObject.getJSONObject("json").getJSONObject("data").getString("modhash");
            dbHandler.addRedditModahash(modhash);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }

    }
}

private void getCaptcha(){
    String jsonString = "";

    DefaultHttpClient httpclient = new DefaultHttpClient();
    final ArrayList<NameValuePair> fields = new ArrayList<NameValuePair>(1);
    fields.add(new BasicNameValuePair("api_type", "json"));

    final HttpPost request = new HttpPost("https://ssl.reddit.com/api/new_captcha");

    try {
        request.setEntity(new UrlEncodedFormEntity(fields, HTTP.UTF_8));

        HttpResponse response = httpclient.execute(request);
        HttpEntity entity = response.getEntity();

        jsonString = EntityUtils.toString(entity);

        System.out.println("CAPTCHA response = " + jsonString);

        JSONObject jObject = new JSONObject(jsonString);
        iden = jObject.getJSONObject("json").getJSONObject("data").getString("iden");
        System.out.println("IDEN = " + iden);
    } catch (UnsupportedEncodingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    showCaptcha();
}

private void showCaptcha(){
    // custom dialog
    final Dialog dialog = new Dialog(Share.this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);

    dialog.setContentView(R.layout.dialog_img_edt);
    try {
        URL url = new URL("https://ssl.reddit.com/captcha/" + iden);

        final Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());

        ImageView img = (ImageView) dialog.findViewById(R.id.img_captcha);

        img.setImageBitmap(bmp);

    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    Button btn_dialog_submit = (Button) dialog.findViewById(R.id.btn_captcha);
    final EditText edt_dialog = (EditText) dialog.findViewById(R.id.edt_answer);

    btn_dialog_submit.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            String answ = edt_dialog.getText().toString();
            if(answ.length() > 0){
                answerToCaptcha = answ;
                postToReddit();
                dialog.dismiss();
            }
            else
                Toast.makeText(getApplicationContext(), "Enter answer to captcha..", Toast.LENGTH_LONG).show();
        }
    });

    dialog.show();
}

private void postToReddit(){
    System.out.println("Captcha iden = " + iden);
    System.out.println("Captcha answer = " + answerToCaptcha);

    String jsonString = "";
    DefaultHttpClient httpclient = new DefaultHttpClient();

    final ArrayList<NameValuePair> fields = new ArrayList<NameValuePair>(14);
    fields.add(new BasicNameValuePair("user", "my_username"));
    fields.add(new BasicNameValuePair("passwd", "my_password"));//just thought that this would solve the problem but it doesn't
    fields.add(new BasicNameValuePair("api_type", "json"));
    fields.add(new BasicNameValuePair("captcha", answerToCaptcha));
    fields.add(new BasicNameValuePair("extension", "json"));
    fields.add(new BasicNameValuePair("iden", "json"));
    fields.add(new BasicNameValuePair("kind", iden));
    fields.add(new BasicNameValuePair("resubmit", "true"));
    fields.add(new BasicNameValuePair("save", "true"));
    fields.add(new BasicNameValuePair("sendreplies", "true"));
    fields.add(new BasicNameValuePair("sr", "Money"));
    fields.add(new BasicNameValuePair("text", "We will beat ANY qoute from ANY Bank! We will transfer your money FEE FREE!"));
    fields.add(new BasicNameValuePair("then", "comments"));
    fields.add(new BasicNameValuePair("title", "Check this cool app"));
    fields.add(new BasicNameValuePair("url", "http://www.the_link_to_app.com/"));

    final HttpPost request = new HttpPost("https://ssl.reddit.com/api/submit");

    request.addHeader("X-Modhash", modhash);
    try {
        request.setEntity(new UrlEncodedFormEntity(fields, HTTP.UTF_8));

        HttpResponse response = httpclient.execute(request);
        HttpEntity entity = response.getEntity();

        jsonString = EntityUtils.toString(entity);

        System.out.println("response from redit = " + jsonString);

        JSONObject jObject = new JSONObject(jsonString);
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (JSONException e) {
        e.printStackTrace();
    }

}

我也试图添加饼干，但是这并没有帮助：

I also tried to add Cookie, but that didn't helped:

    CookieStore cookieStore = new BasicCookieStore();
    Cookie cookiee = new BasicClientCookie("Cookie", cookie);
    cookieStore.addCookie(cookiee);

    HttpContext localContext = new BasicHttpContext();
    localContext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);

其中string Cookie则登录检索。当我执行它：

Where string cookie is retrieved from login. and when I execute the it:

    HttpResponse response = httpclient.execute(request, localContext);

但是，这并没有帮助..同样的错误消息。

But that didn't helped.. same error message.

任何想法，是错误吗？或者我尝试这样做，在一个错误的方式？
任何帮助，请！

Any ideas where is the mistake? Or I try to do that in a wrong way? Any help please!