How do I use the Google URL Shortener API on Android?

Question

After much fiddling with trying to import the libraries myself, I finally managed to find out that I can do so using the Google Plugin for Eclipse, here.

However, I

Answer 1

First create a project on google console and enable url shortner api and get api key and the use the following Asynctask to get shortened url.

 public class newShortAsync extends AsyncTask {

        String longUrl="http://stackoverflow.com/questions/18372672/how-do-i-use-the-google-url-shortener-api-on-android/20406915";
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            progressBar.setVisibility(View.VISIBLE);
         }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
            progressBar.setVisibility(View.GONE);
            System.out.println("JSON RESP:" + s);
            String response=s;
            try {
                JSONObject jsonObject=new JSONObject(response);
                id=jsonObject.getString("id");
                System.out.println("ID:"+id);
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }

        @Override
        protected String doInBackground(Void... params) {
            BufferedReader reader;
            StringBuffer buffer;
            String res=null;
            String json = "{\"longUrl\": \""+longUrl+"\"}";
            try {
                URL url = new URL("https://www.googleapis.com/urlshortener/v1/url?key=YOUR_API_KEY");
                HttpURLConnection con = (HttpURLConnection) url.openConnection();
                con.setReadTimeout(40000);
                con.setConnectTimeout(40000);
                con.setRequestMethod("POST");
                con.setRequestProperty("Content-Type", "application/json");
                OutputStream os = con.getOutputStream();
                BufferedWriter writer = new BufferedWriter(
                        new OutputStreamWriter(os, "UTF-8"));

                writer.write(json);
                writer.flush();
                writer.close();
                os.close();

                int status=con.getResponseCode();
                InputStream inputStream;
                if(status==HttpURLConnection.HTTP_OK)
                inputStream=con.getInputStream();
                else
                    inputStream = con.getErrorStream();

                reader= new BufferedReader(new InputStreamReader(inputStream));

                buffer= new StringBuffer();

                String line="";
                while((line=reader.readLine())!=null)
                {
                    buffer.append(line);
                }

                res= buffer.toString();

            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (ProtocolException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return res;




        }
    }

and then just execute this asynctask you will get a json responce in which id is present which is nothing but shortened Url.