Implement Google Search (JSON) for Android, display in WebView.

Note:

- No layout file needed in this exercise.
- "android.permission.INTERNET" id needed in AndroidManifest.xml.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.webkit.WebView;

public class MainActivity extends Activity {
 
 String search_url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=";
 String search_item = "android";
 String search_query = search_url + search_item;

 WebView webView;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        webView = new WebView(this);
        setContentView(webView);
        
        new JsonSearchTask().execute();
    }
    
    private class JsonSearchTask extends AsyncTask<Void, Void, Void>{

     String searchResult = "";
     
  @Override
  protected Void doInBackground(Void... arg0) {
   
   try {
    searchResult = ParseResult(sendQuery(search_query));
   } catch (JSONException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
   
   return null;
  }

  @Override
  protected void onPostExecute(Void result) {

   webView.loadData(searchResult, 
         "text/html", 
         "UTF-8");
   
   super.onPostExecute(result);
  }
     
    }

    private String sendQuery(String query) throws IOException{
     String result = "";
     
     URL searchURL = new URL(query);
     
     HttpURLConnection httpURLConnection = (HttpURLConnection) searchURL.openConnection();
     
     if(httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK){
      InputStreamReader inputStreamReader = new InputStreamReader(httpURLConnection.getInputStream());
      BufferedReader bufferedReader = new BufferedReader(
        inputStreamReader,
        8192);
      
      String line = null;
      while((line = bufferedReader.readLine()) != null){
       result += line;
      }
      
      bufferedReader.close();
     }
     
     return result;
    }
    
    private String ParseResult(String json) throws JSONException{
     String parsedResult = "";
     
     JSONObject jsonObject = new JSONObject(json);
     JSONObject jsonObject_responseData = jsonObject.getJSONObject("responseData");
     JSONArray jsonArray_results = jsonObject_responseData.getJSONArray("results");
     
     parsedResult += "Google Search APIs (JSON) for : <b>" + search_item + "</b><br/>";
     parsedResult += "Number of results returned = <b>" + jsonArray_results.length() + "</b><br/><br/>";
     
     for(int i = 0; i < jsonArray_results.length(); i++){
      
      JSONObject jsonObject_i = jsonArray_results.getJSONObject(i);
      
      String iTitle = jsonObject_i.getString("title");
      String iContent = jsonObject_i.getString("content");
      String iUrl = jsonObject_i.getString("url");
      
      parsedResult += "<a href='" + iUrl + "'>" + iTitle + "</a><br/>";
      parsedResult += iContent + "<br/><br/>";
     }
     
     return parsedResult;
    }
}