Android Open Source - swap Guess Activity

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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 org.solazo.swap;
//from  www . j  av a  2  s . c  o m
import java.io.IOException;
import org.apache.http.client.ClientProtocolException;
import java.util.ArrayList;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.message.BasicNameValuePair;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.IBinder;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.location.Location;
import android.net.ParseException;
import android.util.Log;

@SuppressLint("NewApi")
public class GuessActivity extends Activity {

  private JSONArray jArray;
  private String result = null;
  private InputStream is = null;
  private StringBuilder sb = null;

  private LocationService locationService;
  private Intent serviceIntent;

  private static final String LOGTAG = "GuessActivity";

  private double latitude;
  private double longitude;
  TextView display_temp;
  TextView display_humid;


  @SuppressLint("NewApi")
  @Override
  public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_guess);
    serviceIntent = new Intent(this, LocationService.class);
  }

  @Override
  public void onResume() {
    super.onResume();
    // Starting the service makes it stick, regardless of bindings
    startService(serviceIntent);
    // Bind to the service
    bindService(serviceIntent, serviceConnection, Context.BIND_AUTO_CREATE);
  }

  @Override
  public void onPause() {
    super.onPause();
    stopService(serviceIntent);

    // Unbind from the service
    unbindService(serviceConnection);
  }

  private ServiceConnection serviceConnection = new ServiceConnection() {
    @Override
    public void onServiceConnected(ComponentName className, IBinder service) {
      locationService = ((LocationService.LocationBinder) service)
          .getService();
      locationService.startTracking();
    }

    @Override
    public void onServiceDisconnected(ComponentName className) {
      locationService.stopTracking();
      locationService = null;
    }
  };

  public void updateUIDisplay(View v) {
    Location loc = locationService.getLocation();

    if (loc == null) {
      // Do nothing
    } else {
      latitude = loc.getLatitude();
      longitude = loc.getLongitude();

      new GuessTask().execute();
    }
  }

  private class GuessTask extends AsyncTask<String, String, String> {

    // @Override
    @Override
    protected String doInBackground(String... params) {
      ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
      nameValuePairs.add(new BasicNameValuePair("c_latitude", Double
          .toString(latitude)));
      nameValuePairs.add(new BasicNameValuePair("c_longitude", Double
          .toString(longitude)));

      HttpClient httpclient = new DefaultHttpClient();
      HttpPost httppost = new HttpPost(
          "");

      // URL Encoding the POST Parameters
      try {
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
      } catch (Exception e) {
        Log.i(LOGTAG,
            "Error in URL Encoding the POST Parameters: "
                + e.toString());
      }

      // Making Http Request

      try {
        HttpResponse response = httpclient.execute(httppost);
        // Writing response to log
        Log.i(LOGTAG, "Http Request Response: " + response.toString());

        HttpEntity entity = response.getEntity();
        is = entity.getContent();
      } catch (ClientProtocolException e) {
        Log.i(LOGTAG, "Error in Http Request " + e.toString());
      } catch (IOException e) {
        Log.i(LOGTAG, "Error in Http Request " + e.toString());
      }

      // convert response to string

      try {
        BufferedReader reader = new BufferedReader(
            new InputStreamReader(is, "iso-8859-1"), 8);
        sb = new StringBuilder();
        sb.append(reader.readLine() + "\n");

        String line = "0";
        while ((line = reader.readLine()) != null) {
          sb.append(line + "\n");
        }
        is.close();
        result = sb.toString();
      } catch (Exception e) {
        Log.i(LOGTAG, "Error converting result " + e.toString());
      }

      return result;

    } // end do in background

    @Override
    protected void onPostExecute(String result) {

      // paring data

      String[] temp = new String[5];
      String[] humid = new String[5];
      String[] noaa_station = new String[5];
      String[] noaa_distance = new String[5];
      String[] noaa_temp = new String[5];
      String[] noaa_humid = new String[5];


      try {

        jArray = new JSONArray(result);
        JSONObject json_data = null;

        for (int i = 0; i < jArray.length(); i++) {
          json_data = jArray.getJSONObject(i);
          temp[i] = json_data.getString("temp");
          humid[i] = json_data.getString("humid");
          noaa_station[i] = json_data.getString("noaa_station");
          noaa_distance[i] = json_data.getString("noaa_distance");
          noaa_temp[i] = json_data.getString("noaa_temp");
          noaa_humid[i] = json_data.getString("noaa_humid");
        }

        String the_results = "Temperature: " + temp[0]
            + " F \n Humidity: " + humid[0] + "% \n "
            + "Closest Station: " + noaa_station[0] + "\n "
            + "Miles from you: " + noaa_distance[0];

        display_temp = (TextView) findViewById(R.id.status);
        display_temp.setText(the_results);

      } catch (JSONException e1) {
        Toast.makeText(getBaseContext(),
            "Oops...something went wrong :(", Toast.LENGTH_LONG)
            .show();
      } catch (ParseException e1) {
        e1.printStackTrace();

      }

    }
  }
}

Java Source Code List

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