Android Open Source - downtown G Map V2 Direction






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License

The source code is released under:

GNU General Public License

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Java Source Code

package org.dklisiaris.downtown.maps;
//ww w . j a  v  a2  s. c om
import java.io.InputStream;
import java.util.ArrayList;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import com.google.android.gms.maps.model.LatLng;

public class GMapV2Direction {
    public final static String MODE_DRIVING = "driving";
    public final static String MODE_WALKING = "walking";
    public final static String MODE_BICYCLING = "bicycling";
    public final static String MODE_TRANSIT = "transit";

    public GMapV2Direction() { }

    public Document getDocument(LatLng start, LatLng end, String mode) {
      String depTime="";
      long time = System.currentTimeMillis()/1000;      
      depTime = "&departure_time="+time;
        String url = "http://maps.googleapis.com/maps/api/directions/xml?" 
                + "origin=" + start.latitude + "," + start.longitude  
                + "&destination=" + end.latitude + "," + end.longitude 
                + "&sensor=false&units=metric&mode="+mode+"&language=el"+depTime;
        //Log.d("api link", url);

        try {
            HttpClient httpClient = new DefaultHttpClient();
            HttpContext localContext = new BasicHttpContext();
            HttpPost httpPost = new HttpPost(url);
            HttpResponse response = httpClient.execute(httpPost, localContext);
            InputStream in = response.getEntity().getContent();
            DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
            Document doc = builder.parse(in);
            return doc;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public String getDurationText (Document doc) {
        NodeList nl1 = doc.getElementsByTagName("duration");
        Node node1 = nl1.item(nl1.getLength() - 1);
        NodeList nl2 = node1.getChildNodes();
        Node node2 = nl2.item(getNodeIndex(nl2, "text"));
        //Log.i("DurationText", node2.getTextContent());
        return node2.getTextContent();
    }

    public int getDurationValue (Document doc) {
        NodeList nl1 = doc.getElementsByTagName("duration");
        Node node1 = nl1.item(nl1.getLength() - 1);
        NodeList nl2 = node1.getChildNodes();
        Node node2 = nl2.item(getNodeIndex(nl2, "value"));
        //Log.i("DurationValue", node2.getTextContent());
        return Integer.parseInt(node2.getTextContent());
    }

    public String getDistanceText (Document doc) {
        NodeList nl1 = doc.getElementsByTagName("distance");
        Node node1 = nl1.item(nl1.getLength() - 1);
        NodeList nl2 = node1.getChildNodes();
        Node node2 = nl2.item(getNodeIndex(nl2, "text"));
        //Log.i("DistanceText", node2.getTextContent());
        return node2.getTextContent();
    }

    public int getDistanceValue (Document doc) {
        NodeList nl1 = doc.getElementsByTagName("distance");
        Node node1 = nl1.item(nl1.getLength() - 1);
        NodeList nl2 = node1.getChildNodes();
        Node node2 = nl2.item(getNodeIndex(nl2, "value"));
        //Log.i("DistanceValue", node2.getTextContent());
        return Integer.parseInt(node2.getTextContent());
    }

    public String getStartAddress (Document doc) {
        NodeList nl1 = doc.getElementsByTagName("start_address");
        Node node1 = nl1.item(0);
        //Log.i("StartAddress", node1.getTextContent());
        return node1.getTextContent();
    }

    public String getEndAddress (Document doc) {
        NodeList nl1 = doc.getElementsByTagName("end_address");
        Node node1 = nl1.item(0);
        //Log.i("StartAddress", node1.getTextContent());
        return node1.getTextContent();
    }

    public String getCopyRights (Document doc) {
        NodeList nl1 = doc.getElementsByTagName("copyrights");
        Node node1 = nl1.item(0);
        //Log.i("CopyRights", node1.getTextContent());
        return node1.getTextContent();
    }

    public ArrayList<LatLng> getDirection (Document doc) {
        NodeList nl1, nl2, nl3;
        ArrayList<LatLng> listGeopoints = new ArrayList<LatLng>();
        nl1 = doc.getElementsByTagName("step");
        if (nl1.getLength() > 0) {
            for (int i = 0; i < nl1.getLength(); i++) {
                Node node1 = nl1.item(i);
                nl2 = node1.getChildNodes();

                Node locationNode = nl2.item(getNodeIndex(nl2, "start_location"));
                nl3 = locationNode.getChildNodes();
                Node latNode = nl3.item(getNodeIndex(nl3, "lat"));
                double lat = Double.parseDouble(latNode.getTextContent());
                Node lngNode = nl3.item(getNodeIndex(nl3, "lng"));
                double lng = Double.parseDouble(lngNode.getTextContent());
                listGeopoints.add(new LatLng(lat, lng));

                locationNode = nl2.item(getNodeIndex(nl2, "polyline"));
                nl3 = locationNode.getChildNodes();
                latNode = nl3.item(getNodeIndex(nl3, "points"));
                ArrayList<LatLng> arr = decodePoly(latNode.getTextContent());
                for(int j = 0 ; j < arr.size() ; j++) {
                    listGeopoints.add(new LatLng(arr.get(j).latitude, arr.get(j).longitude));
                }

                locationNode = nl2.item(getNodeIndex(nl2, "end_location"));
                nl3 = locationNode.getChildNodes();
                latNode = nl3.item(getNodeIndex(nl3, "lat"));
                lat = Double.parseDouble(latNode.getTextContent());
                lngNode = nl3.item(getNodeIndex(nl3, "lng"));
                lng = Double.parseDouble(lngNode.getTextContent());
                listGeopoints.add(new LatLng(lat, lng));
            }
        }

        return listGeopoints;
    }

    private int getNodeIndex(NodeList nl, String nodename) {
        for(int i = 0 ; i < nl.getLength() ; i++) {
            if(nl.item(i).getNodeName().equals(nodename))
                return i;
        }
        return -1;
    }

    private ArrayList<LatLng> decodePoly(String encoded) {
        ArrayList<LatLng> poly = new ArrayList<LatLng>();
        int index = 0, len = encoded.length();
        int lat = 0, lng = 0;
        while (index < len) {
            int b, shift = 0, result = 0;
            do {
                b = encoded.charAt(index++) - 63;
                result |= (b & 0x1f) << shift;
                shift += 5;
            } while (b >= 0x20);
            int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
            lat += dlat;
            shift = 0;
            result = 0;
            do {
                b = encoded.charAt(index++) - 63;
                result |= (b & 0x1f) << shift;
                shift += 5;
            } while (b >= 0x20);
            int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
            lng += dlng;

            LatLng position = new LatLng((double) lat / 1E5, (double) lng / 1E5);
            poly.add(position);
        }
        return poly;
    }
}




Java Source Code List

com.google.maps.android.BuildConfig.java
com.google.maps.android.BuildConfig.java
com.google.maps.android.MarkerManager.java
com.google.maps.android.MathUtil.java
com.google.maps.android.PolyUtil.java
com.google.maps.android.SphericalUtil.java
com.google.maps.android.clustering.ClusterItem.java
com.google.maps.android.clustering.ClusterManager.java
com.google.maps.android.clustering.Cluster.java
com.google.maps.android.clustering.algo.Algorithm.java
com.google.maps.android.clustering.algo.GridBasedAlgorithm.java
com.google.maps.android.clustering.algo.NonHierarchicalDistanceBasedAlgorithm.java
com.google.maps.android.clustering.algo.PreCachingAlgorithmDecorator.java
com.google.maps.android.clustering.algo.StaticCluster.java
com.google.maps.android.clustering.view.ClusterRenderer.java
com.google.maps.android.clustering.view.DefaultClusterRenderer.java
com.google.maps.android.geometry.Bounds.java
com.google.maps.android.geometry.Point.java
com.google.maps.android.projection.Point.java
com.google.maps.android.projection.SphericalMercatorProjection.java
com.google.maps.android.quadtree.PointQuadTree.java
com.google.maps.android.ui.BubbleIconFactory.java
com.google.maps.android.ui.IconGenerator.java
com.google.maps.android.ui.RotationLayout.java
com.google.maps.android.ui.SquareTextView.java
com.sothree.slidinguppanel.SlidingUpPanelLayout.java
com.sothree.slidinguppanel.library.BuildConfig.java
com.sothree.slidinguppanel.library.BuildConfig.java
org.dklisiaris.downtown.Addresses.java
org.dklisiaris.downtown.BuildConfig.java
org.dklisiaris.downtown.FavsActivity.java
org.dklisiaris.downtown.GlobalData.java
org.dklisiaris.downtown.Intro.java
org.dklisiaris.downtown.MainActivity.java
org.dklisiaris.downtown.Manifest.java
org.dklisiaris.downtown.MapActivity.java
org.dklisiaris.downtown.MoreActivity.java
org.dklisiaris.downtown.Products.java
org.dklisiaris.downtown.SearchActivity.java
org.dklisiaris.downtown.Search.java
org.dklisiaris.downtown.SingleListItem.java
org.dklisiaris.downtown.Subcategories.java
org.dklisiaris.downtown.SubcatsAndFilters.java
org.dklisiaris.downtown.Tabs.java
org.dklisiaris.downtown.TestActivity.java
org.dklisiaris.downtown.WebViewActivity.java
org.dklisiaris.downtown.Websites.java
org.dklisiaris.downtown.actionbar.ActionBar.java
org.dklisiaris.downtown.actionbar.ScrollingTextView.java
org.dklisiaris.downtown.adapters.AddressFilterAdapter.java
org.dklisiaris.downtown.adapters.CustomAdapter.java
org.dklisiaris.downtown.adapters.CustomStringAdapter.java
org.dklisiaris.downtown.adapters.CustomSuggestionsAdapter.java
org.dklisiaris.downtown.adapters.MultiSelectionAdapter.java
org.dklisiaris.downtown.adapters.SubcatsAdapter.java
org.dklisiaris.downtown.db.Banner.java
org.dklisiaris.downtown.db.Category.java
org.dklisiaris.downtown.db.Company.java
org.dklisiaris.downtown.db.DBHandler.java
org.dklisiaris.downtown.db.DBInterface.java
org.dklisiaris.downtown.db.Image.java
org.dklisiaris.downtown.db.InitData.java
org.dklisiaris.downtown.db.Keyword.java
org.dklisiaris.downtown.db.Mapping.java
org.dklisiaris.downtown.db.Product.java
org.dklisiaris.downtown.db.QueryBuilder.java
org.dklisiaris.downtown.downloader.DownloadTask.java
org.dklisiaris.downtown.downloader.NotificationHelper.java
org.dklisiaris.downtown.helper.AccessAssets.java
org.dklisiaris.downtown.helper.AlertDialogManager.java
org.dklisiaris.downtown.helper.ConnectionDetector.java
org.dklisiaris.downtown.helper.FileCache.java
org.dklisiaris.downtown.helper.ImageLoader.java
org.dklisiaris.downtown.helper.InfoHelper.java
org.dklisiaris.downtown.helper.KeyboardUtil.java
org.dklisiaris.downtown.helper.MemoryCache.java
org.dklisiaris.downtown.helper.ShareHelper.java
org.dklisiaris.downtown.helper.UpdateConfirmDialog.java
org.dklisiaris.downtown.helper.UpdateHelper.java
org.dklisiaris.downtown.helper.Utils.java
org.dklisiaris.downtown.helper.XMLParser.java
org.dklisiaris.downtown.maps.AbstractMapActivity.java
org.dklisiaris.downtown.maps.CompanyMarker.java
org.dklisiaris.downtown.maps.DirectionsInfo.java
org.dklisiaris.downtown.maps.GMapV2Direction.java
org.dklisiaris.downtown.maps.Nearby.java
org.dklisiaris.downtown.maps.PopupAdapter.java
org.dklisiaris.downtown.providers.KeywordContract.java
org.dklisiaris.downtown.providers.KeywordProvider.java
org.dklisiaris.downtown.widgets.AspectRatioImageView.java
org.dklisiaris.downtown.widgets.CheckableRelativeLayout.java
org.dklisiaris.downtown.widgets.CustomScrollView.java
org.dklisiaris.downtown.widgets.FlipAnimator.java
org.dklisiaris.downtown.widgets.InertCheckBox.java
org.dklisiaris.downtown.widgets.MultiSpinner.java