/*
* This file is part of Find Your Friend.
*
* Find Your Friend is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Find Your Friend is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Find Your Friend. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sgu.findyourfriend.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.json.JSONObject;
import android.content.Context;
import android.graphics.Color;
import android.os.AsyncTask;
import android.os.Handler;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.model.Circle;
import com.google.android.gms.maps.model.CircleOptions;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Polyline;
import com.google.android.gms.maps.model.PolylineOptions;
public class GpsDirection {
private Context context;
private GoogleMap mMap;
private Polyline polylineCurrent;
private boolean isBeforeRemove;
private boolean isRouted;
private String mdurationsMode[] = new String[3];
private String mdistance;
private PolylineOptions polylineOptions;
private TextView txtDistance;
private TextView txtWalk;
private TextView txtMoto;
private boolean isDraw; // different for get information screen and route
// task
// amazing for route detection
private boolean stopAmazing;
private int ir = 0;
public enum MODE {
driving, walking
};
public GpsDirection(Context context, GoogleMap mMap) {
this.context = context;
this.mMap = mMap;
}
public GpsDirection(Context context) {
this.context = context;
this.mMap = null;
}
public void excuteDirection(LatLng origin, LatLng dest,
boolean isBeforeRemove) {
this.isBeforeRemove = isBeforeRemove;
if (isBeforeRemove && polylineCurrent != null)
clearRoute();
isDraw = true;
String url = getDirectionsUrl(origin, dest);
DownloadTask downloadTask = new DownloadTask(MODE.driving);
// Start downloading json data from Google Directions API
downloadTask.execute(url);
// start amazing
amazingRoute(dest);
}
public void clearRoute() {
if (null != polylineCurrent)
polylineCurrent.remove();
}
public void loadViewDirectionInfo(TextView txtDistance, TextView txtWalk,
TextView txtMoto, LatLng origin, LatLng dest) {
isDraw = false;
this.txtDistance = txtDistance;
this.txtWalk = txtWalk;
this.txtMoto = txtMoto;
// prepare
this.txtDistance.setText("...");
this.txtWalk.setText("...");
this.txtMoto.setText("...");
for (MODE m : MODE.values()) {
String url = getDirectionsUrl(origin, dest, m.toString());
DownloadTask downloadTask = new DownloadTask(m);
downloadTask.execute(url);
}
}
public String getDirectionsUrl(LatLng origin, LatLng dest) {
return getDirectionsUrl(origin, dest, "");
}
public String getDirectionsUrl(LatLng origin, LatLng dest, String fmode) {
// Origin of route
String str_origin = "origin=" + origin.latitude + ","
+ origin.longitude;
// Destination of route
String str_dest = "destination=" + dest.latitude + "," + dest.longitude;
// Sensor enabled
String sensor = "sensor=false";
String mode = "mode=" + fmode;
String unit = "units=metric"; // &mode=driving
// Building the parameters to the web service
String parameters = str_origin + "&" + str_dest + "&" + sensor + "&"
+ unit + "&" + mode;
// Output format
String output = "json";
// Building the url to the web service
String url = "https://maps.googleapis.com/maps/api/directions/"
+ output + "?" + parameters;
Log.i("DIRECTION: ", url);
return url;
}
/** A method to download json data from url */
private String downloadUrl(String strUrl) throws IOException {
String data = "";
InputStream iStream = null;
HttpURLConnection urlConnection = null;
try {
URL url = new URL(strUrl);
// Creating an http connection to communicate with url
urlConnection = (HttpURLConnection) url.openConnection();
// Connecting to url
urlConnection.connect();
// Reading data from url
iStream = urlConnection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(
iStream));
StringBuffer sb = new StringBuffer();
String line = "";
while ((line = br.readLine()) != null) {
sb.append(line);
}
data = sb.toString();
br.close();
} catch (Exception e) {
Log.d("Exception while downloading url", e.toString());
} finally {
iStream.close();
urlConnection.disconnect();
}
return data;
}
// Fetches data from url passed
private class DownloadTask extends AsyncTask<String, Void, String> {
MODE mode;
public DownloadTask(MODE m) {
this.mode = m;
}
// Downloading data in non-ui thread
@Override
protected String doInBackground(String... url) {
// For storing data from web service
String data = "";
try {
// Fetching the data from web service
data = downloadUrl(url[0]);
} catch (Exception e) {
Log.d("Background Task", e.toString());
}
return data;
}
// Executes in UI thread, after the execution of
// doInBackground()
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
ParserTask parserTask = new ParserTask(mode);
// Invokes the thread for parsing the JSON data
parserTask.execute(result);
}
}
/** A class to parse the Google Places in JSON format */
private class ParserTask extends
AsyncTask<String, Integer, List<List<HashMap<String, String>>>> {
MODE mode;
public ParserTask(MODE m) {
this.mode = m;
}
// Parsing the data in non-ui thread
@Override
protected List<List<HashMap<String, String>>> doInBackground(
String... jsonData) {
JSONObject jObject;
List<List<HashMap<String, String>>> routes = null;
try {
jObject = new JSONObject(jsonData[0]);
DirectionsJSONParser parser = new DirectionsJSONParser();
// Starts parsing data
routes = parser.parse(jObject);
} catch (Exception e) {
e.printStackTrace();
}
return routes;
}
// Executes in UI thread, after the parsing process
@Override
protected void onPostExecute(List<List<HashMap<String, String>>> result) {
ArrayList<LatLng> points = null;
PolylineOptions lineOptions = null;
// MarkerOptions markerOptions = new MarkerOptions();
String distance = "";
String duration = "";
String startAddress = "";
String endAddress = "";
String travelMode = "";
if (null == result || result.size() < 1) {
if (!isDraw) {
if (mode.equals(MODE.walking))
txtWalk.setText("không có sẵn");
else if (mode.equals(MODE.driving)) {
txtMoto.setText("không có sẵn");
txtDistance.setText("không xác định");
}
} else {
stopAmazing = true;
Toast.makeText(context, "Không tìm thấy đường đi", Toast.LENGTH_SHORT).show();
}
return;
}
// Traversing through all the routes
for (int i = 0; i < result.size(); i++) {
points = new ArrayList<LatLng>();
lineOptions = new PolylineOptions();
// Fetching i-th route
List<HashMap<String, String>> path = result.get(i);
// Fetching all the points in i-th route
for (int j = 0; j < path.size(); j++) {
HashMap<String, String> point = path.get(j);
if (j == 0) { // Get distance from the list
distance = (String) point.get("distance");
continue;
} else if (j == 1) { // Get duration from the list
duration = (String) point.get("duration");
continue;
} else if (j == 2) {
startAddress = (String) point.get("startAddress");
endAddress = (String) point.get("endAddress");
continue;
}
// else if (j == 3) {
// travelMode = (String) point.get("travel_mode");
// Log.i("MODE", travelMode);
// }
double lat = Double.parseDouble(point.get("lat"));
double lng = Double.parseDouble(point.get("lng"));
LatLng position = new LatLng(lat, lng);
points.add(position);
}
// Adding all the points in the route to LineOptions
lineOptions.addAll(points);
lineOptions.width(3);
lineOptions.color(Color.RED);
}
// tvDistanceDuration.setText("Distance:" + distance + ", Duration:"
// + duration);
Log.i("DIRECT INFO: ", "Distance:" + distance + ", Duration:"
+ duration);
Log.i("ADDRESS INFO: ", "Start:" + startAddress + ", End:"
+ endAddress);
if (isDraw) {
// Log.i("DRAW", "NUM of: " + lineOptions.getPoints().size());
polylineCurrent = mMap.addPolyline(lineOptions);
stopAmazing = true;
return;
}
if (mode.equals(MODE.walking)) {
if (duration.equals(""))
duration = "0";
Log.i("WALKING duration: ", duration);
txtWalk.setText(Utility.convertSecTimeToString(Long
.parseLong(duration)));
} else if (mode.equals(MODE.driving)) {
if (duration.equals(""))
duration = "0";
mdistance = distance;
txtDistance.setText(distance);
txtMoto.setText(Utility.convertSecTimeToString(Long
.parseLong(duration)));
polylineOptions = lineOptions;
// Log.i("DISTANCE: ", distance);
Log.i("TRAVLING duration: ", duration);
}
}
}
private void amazingRoute(LatLng latlng) {
final long interval = 250;
final int[] radius = new int[] { 1000, 5000, 10000, 20000, 50000 };
CircleOptions opt = new CircleOptions();
opt.center(latlng);
opt.fillColor(0x882176B9);
opt.strokeWidth(0);
opt.radius(100);
final Circle c = mMap.addCircle(opt);
stopAmazing = false;
final Handler handler = new Handler();
final Runnable r = new Runnable() {
public void run() {
c.setRadius(radius[ir % 5]);
ir++;
if (!stopAmazing) {
handler.postDelayed(this, interval);
} else {
c.remove();
}
}
};
handler.postDelayed(r, 0);
}
}