Android Open Source - android-gps-uploader Utils

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Back to project page android-gps-uploader.

License

The source code is released under:

MIT License

Java Source Code

/** 
 * The MIT License (MIT)/*from w w w .  jav a  2 s.co m*/
 *
 * Copyright (c) 2014 John Nahlen (john.nahlen@gmail.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * */
package com.bughousedb.GPSTracker;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.net.URL;
import java.net.URLConnection;
import java.text.SimpleDateFormat;
import java.util.Date;

import android.location.Location;

public class Utils {
  public static double round(double value) {
    return round(value,6);
  }
  
  public static double round(double value,int precision) {
    return new BigDecimal(value).setScale(precision, RoundingMode.CEILING).doubleValue();
  }
  
  public static String locationToString(Location location) {
    return SimpleDateFormat.getTimeInstance().format(new Date(location.getTime())) + " " + Utils.round(location.getLatitude()) + ", " + Utils.round(location.getLongitude()) + " " + location.getAccuracy() + " " + location.getSpeed() + "\n";
  }
  
  public static boolean uploadToServer(MainActivity mainActivity,String url,String postBody) {
    String charset = "UTF-8";
    try {
      URLConnection connection = new URL(url).openConnection();
      connection.setDoOutput(true); // Triggers POST.
      connection.setRequestProperty("Accept-Charset", charset);
      connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=" + charset);
      OutputStream output = null;
      try {
        output = connection.getOutputStream();
        output.write(postBody.getBytes(charset));
      } finally {
        if (output != null) {
          output.close();
        }
      }
      try {
        InputStream response = connection.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(response),8192);
        while(reader.ready()) {
          System.out.println(reader.readLine());
        }
      } catch(Exception e) {
        e.printStackTrace(System.err);
        mainActivity.sendMessageToTextView("Could not fetch response: " + e + "\n");
      }
      return true;
    } catch(Exception e) {
      e.printStackTrace(System.err);
      mainActivity.sendMessageToTextView("Could not upload coordinates: " + e + "\n");
      return false;
    }
  }
  
  public static boolean areLocationsDifferent(Location loc1,Location loc2) {
    int precision = 5;
    //boolean accuracyDiff = loc1.getAccuracy() != loc2.getAccuracy();
    boolean latDiff = round(loc1.getLatitude(),precision) != round(loc2.getLatitude(),precision);
    boolean longDiff = round(loc1.getLongitude(),precision) != round(loc2.getLongitude(),precision);
    return latDiff || longDiff;
  }
}

Java Source Code List

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