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| package com.example.projet_fin_etude;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.json.JSONObject;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.ContactsContract.Data;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.util.Log;
import android.view.Menu;
import android.view.Window;
public class MapDirection extends MapActivity{
MapView mapview;
MapRouteOverlay mapoverlay;
Context _context;
List<Overlay> maplistoverlay;
Drawable drawable,drawable2;
MapOverlay mapoverlay2,mapoverlay3;
GeoPoint srcpoint,destpoint;
Overlay overlayitem;
ArrayList <Place> myList =new ArrayList <Place>();
double lt;
double lg;
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.activity_map_direction);
mapview=(MapView)this.findViewById(R.id.mapView);
Intent intent = getIntent();
Bundle extras =intent.getExtras();
if (extras != null){
this.myList = (ArrayList<Place>) extras.getSerializable("myList");
lt=Double.parseDouble(intent.getStringExtra("latitude"));
lg=Double.parseDouble(intent.getStringExtra("longitude"));
callMap();
}
}
private void callMap() {
srcpoint=new GeoPoint((int)(lt*1E6),(int)(lg*1E6));
maplistoverlay=mapview.getOverlays();
drawable=this.getResources().getDrawable(R.drawable.marq_dest);
mapoverlay2=new MapOverlay(drawable);
OverlayItem overlayitem = new OverlayItem(srcpoint, "", "");
mapoverlay2.addOverlay(overlayitem);
maplistoverlay.add(mapoverlay2);
destpoint=new GeoPoint((int)(myList.get(0).getLatitude()*1E6),(int)(myList.get(0).getLongitude()*1E6));
drawable2=this.getResources().getDrawable(R.drawable.marqueur1);
mapoverlay3=new MapOverlay(drawable2);
OverlayItem overlayitem3 = new OverlayItem(destpoint, "", "");
mapoverlay3.addOverlay(overlayitem3);
maplistoverlay.add(mapoverlay3);
double dest_lat = myList.get(0).getLatitude();
double dest_long = myList.get(0).getLongitude();
GeoPoint srcGeoPoint = new GeoPoint((int) (lt* 1E6),
(int) (lg * 1E6));
GeoPoint destGeoPoint = new GeoPoint((int) (dest_lat * 1E6),
(int) (dest_long * 1E6));
new DrawPath(srcGeoPoint, destGeoPoint, Color.BLUE, mapview).execute();
mapview.getController().animateTo(srcGeoPoint);
mapview.getController().setZoom(13);
//mapview.setStreetView(true);
mapview.setBuiltInZoomControls(true);
mapview.invalidate();
}
class DrawPath extends AsyncTask<Void, Void, Document>
{
GeoPoint src;
GeoPoint dest;
int color;
MapView mMapView01;
public DrawPath(GeoPoint src, GeoPoint dest, int color,
MapView mMapView01)
{
this.src=src;
this.dest=dest;
this.color=color;
this.mMapView01=mMapView01;
}
//System.out.println(urlString);
// get the kml (XML) doc. And parse it to get the coordinates(direction route).
@Override
protected Document doInBackground(Void... params) {
//System.out.println(urlString);
// get the kml (XML) doc. And parse it to get the coordinates(direction route).
Document doc = null;
HttpURLConnection urlConnection= null;
URL url = null;
// connect to map web service
StringBuilder urlString = new StringBuilder();
urlString.append("http://maps.google.com/maps?f=d&hl=en");
urlString.append("&saddr=");//from
urlString.append( Double.toString((double)src.getLatitudeE6()/1.0E6 ));
urlString.append(",");
urlString.append( Double.toString((double)src.getLongitudeE6()/1.0E6 ));
urlString.append("&daddr=");//to
urlString.append( Double.toString((double)dest.getLatitudeE6()/1.0E6 ));
urlString.append(",");
urlString.append( Double.toString((double)dest.getLongitudeE6()/1.0E6 ));
urlString.append("&ie=UTF8&0&om=0&output=kml");
Log.d("xxx","URL="+urlString.toString());
try
{
url = new URL(urlString.toString());
urlConnection=(HttpURLConnection)url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
urlConnection.connect();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
doc = db.parse(urlConnection.getInputStream());
}
catch (MalformedURLException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
catch (ParserConfigurationException e)
{
e.printStackTrace();
}
catch (SAXException e)
{
e.printStackTrace();
}
return doc;
}
protected void onPostExecute(Document result){
if(result.getElementsByTagName("GeometryCollection").getLength()>0)
{
//String path = doc.getElementsByTagName("GeometryCollection").item(0).getFirstChild().getFirstChild().getNodeName();
String path = result.getElementsByTagName("GeometryCollection").item(0).getFirstChild().getFirstChild().getFirstChild().getNodeValue() ;
Log.d("xxx","path="+ path);
String [] pairs = path.split(" ");
String[] lngLat = pairs[0].split(","); // lngLat[0]=longitude lngLat[1]=latitude lngLat[2]=height
// src
GeoPoint startGP = new GeoPoint((int)(Double.parseDouble(lngLat[1])*1E6),(int)(Double.parseDouble(lngLat[0])*1E6));
//mMapView01.getOverlays().add(overlayitem);
GeoPoint gp1;
GeoPoint gp2 = startGP;
for(int i=1;i<pairs.length;i++) // the last one would be crash
{
lngLat = pairs[i].split(",");
gp1 = gp2;
// watch out! For GeoPoint, first:latitude, second:longitude
gp2 = new GeoPoint((int)(Double.parseDouble(lngLat[1])*1E6),(int)(Double.parseDouble(lngLat[0])*1E6));
mMapView01.getOverlays().add(new MapRouteOverlay(gp1,gp2,2,color));
Log.d("xxx","pair:" + pairs[i]);
}
//mMapView01.getOverlays().add(new MapRouteOverlay(dest,dest, 3)); // use the default color
}
}
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
} |
