Android Open Source - Kodesearch List Results

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package com.kodesearch;
//w ww.ja  v a 2 s.c om
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;

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



import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

public class ListResults extends ListActivity {

  private ProgressDialog pDialog;

  // URL to get contacts JSON
  private static String url = "http://searchcode.com/api/search_IV/?q=";

  // JSON Node names
  private static final String ARR_RESULTS = "results";
  private static final String OBJ_NAME = "name";
  private static final String OBJ_DESCRIPTION = "description";
  private static final String OBJ_SYNOPSIS = "synopsis";
  private static final String OBJ_DISPLAY_NAME = "displayname";
  private static final String OBJ_URL = "url";

  // Seach term
  private static final String SEARCH_KEYWORD = "seachterm";

  TextView synopView;

  // contacts JSONArray
  JSONArray contacts = null;

  // Hashmap for ListView
  ArrayList<HashMap<String, String>> resultsList;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    

    resultsList = new ArrayList<HashMap<String, String>>();

    ListView lv = getListView();

    // Listview on item click listener
    lv.setOnItemClickListener(new OnItemClickListener() {

      @Override
      public void onItemClick(AdapterView<?> parent, View view,
          int position, long id) {
        // getting values from selected ListItem
        String name = ((TextView) view.findViewById(R.id.name))
            .getText().toString();
        String desc = ((TextView) view.findViewById(R.id.description))
            .getText().toString();
        String synop = ((TextView) view.findViewById(R.id.synopsis))
            .getText().toString();
        synopView = (TextView) view.findViewById(R.id.synopsis);
        synopView.setVisibility(View.GONE);
        String url = ((TextView) view.findViewById(R.id.url)).getText()
            .toString();

        // Starting single contact activity
        Intent in = new Intent(getApplicationContext(),
            ViewResult.class);
        in.putExtra(OBJ_NAME, name);
        in.putExtra(OBJ_DESCRIPTION, desc);
        in.putExtra(OBJ_SYNOPSIS, synop);
        in.putExtra(OBJ_URL, url);
        startActivity(in);

      }
    });

    // getting intent data
    Intent intt = getIntent();

    // get search term
    String search_term = intt.getStringExtra(SEARCH_KEYWORD);

    // Calling async task to get json
    new GetContacts().execute(search_term);
  }

  /**
   * Async task class to get json by making HTTP call
   * */
  private class GetContacts extends AsyncTask<String, Void, Void> {

    @Override
    protected void onPreExecute() {
      super.onPreExecute();
      // Showing progress dialog
      pDialog = new ProgressDialog(ListResults.this);
      pDialog.setMessage("Please wait...");
      pDialog.setCancelable(false);
      pDialog.show();

    }

    @Override
    protected Void doInBackground(String... search_term) {
      // Creating service handler class instance
      ServiceHandler sh = new ServiceHandler();

      // Making a request to url and getting response
      String jsonStr = sh.makeServiceCall(url+URLEncoder.encode(search_term[0]), ServiceHandler.GET);

      Log.d("search term: ", "> " + search_term[0]);
      Log.d("Response: ", "> " + jsonStr);

      if (jsonStr != null) {
        try {
          JSONObject jsonObj = new JSONObject(jsonStr);

          // Getting JSON Array node
          contacts = jsonObj.getJSONArray(ARR_RESULTS);

          // looping through All Contacts
          for (int i = 0; i < contacts.length(); i++) {
            JSONObject c = contacts.getJSONObject(i);

            String name = c.getString(OBJ_NAME);
            String desc = c.getString(OBJ_DESCRIPTION);
            String synop = c.getString(OBJ_SYNOPSIS);
            String icon = c.getString(OBJ_DISPLAY_NAME);
            String url = c.getString(OBJ_URL);

            // tmp hashmap for single contact
            HashMap<String, String> single_result = new HashMap<String, String>();

            single_result.put(OBJ_NAME, name);
            single_result.put(OBJ_DESCRIPTION, desc);
            single_result.put(OBJ_SYNOPSIS, synop);
            single_result.put(OBJ_DISPLAY_NAME, icon);
            single_result.put(OBJ_URL, url);

            // adding contact to contact list
            resultsList.add(single_result);
          }
        } catch (JSONException e) {
          e.printStackTrace();
        }
      } else {
        Log.e("ServiceHandler", "Couldn't get any data from the url");
      }

      return null;
    }

    @Override
    protected void onPostExecute(Void result) {
      super.onPostExecute(result);
      // Dismiss the progress dialog
      if (pDialog.isShowing())
        pDialog.dismiss();
      /**
       * Updating parsed JSON data into ListView
       * */
      ListAdapter adapter = new SimpleAdapter(ListResults.this,
          resultsList, R.layout.list_item, new String[] { OBJ_NAME,
              OBJ_DESCRIPTION, OBJ_SYNOPSIS, OBJ_DISPLAY_NAME,
              OBJ_URL }, new int[] { R.id.name, R.id.description,
              R.id.synopsis, R.id.type, R.id.url });

      setListAdapter(adapter);
    }

  }

}

Java Source Code List

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