Android draw route between two geo location MapV2

Android draw route between two geo location MapV2

Android Draw route between two geo location MapV2

This post about draw route between two geo location using google map V2.

When I use the google map V2 its loading two fast.

I hope this post helpful for you

Screen Shot

 

Activity Source Code

package com.androidbunch.drawroutev2;

import java.util.ArrayList;

import java.util.List;

import org.w3c.dom.Document;

import com.google.android.gms.maps.CameraUpdateFactory;

import com.google.android.gms.maps.GoogleMap;

import com.google.android.gms.maps.SupportMapFragment;

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

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

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

import com.google.android.maps.GeoPoint;

import com.google.android.maps.Overlay;

import android.location.Location;

import android.location.LocationManager;

import android.os.AsyncTask;

import android.os.Bundle;

import android.app.ProgressDialog;

import android.graphics.Color;

import android.graphics.drawable.Drawable;

import android.support.v4.app.FragmentActivity;

/**

 *

 * @author VIJAYAKUMAR M

 *This class for display route current location to hotel location on google map V2

 */

public class MainActivity extends FragmentActivity  {

     

      List<Overlay> mapOverlays;

      GeoPoint point1, point2;

      LocationManager locManager;

      Drawable drawable;

      Document document;

      GMapV2GetRouteDirection v2GetRouteDirection;

      LatLng fromPosition;

      LatLng toPosition;

      GoogleMap mGoogleMap;

      MarkerOptions markerOptions;

      Location location ;

      @Override

      protected void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_main);

            v2GetRouteDirection = new GMapV2GetRouteDirection();

          SupportMapFragment supportMapFragment = (SupportMapFragment) getSupportFragmentManager()

            .findFragmentById(R.id.map);

            mGoogleMap = supportMapFragment.getMap();

            // Enabling MyLocation in Google Map

            mGoogleMap.setMyLocationEnabled(true);

            mGoogleMap.getUiSettings().setZoomControlsEnabled(true);

            mGoogleMap.getUiSettings().setCompassEnabled(true);

            mGoogleMap.getUiSettings().setMyLocationButtonEnabled(true);

            mGoogleMap.getUiSettings().setAllGesturesEnabled(true);

            mGoogleMap.setTrafficEnabled(true);

            mGoogleMap.animateCamera(CameraUpdateFactory.zoomTo(12));

            markerOptions = new MarkerOptions();

            fromPosition = new LatLng(11.663837, 78.147297);

            toPosition = new LatLng(11.723512, 78.466287);

            GetRouteTask getRoute = new GetRouteTask();

            getRoute.execute();

      }

      /**

       *

       * @author VIJAYAKUMAR M

       * This class Get Route on the map

       *

       */

      private class GetRouteTask extends AsyncTask<String, Void, String> {

           

            private ProgressDialog Dialog;

            String response = "";

            @Override

            protected void onPreExecute() {

                  Dialog = new ProgressDialog(MainActivity.this);

                  Dialog.setMessage("Loading route...");

                  Dialog.show();

            }

            @Override

            protected String doInBackground(String... urls) {

                  //Get All Route values

                        document = v2GetRouteDirection.getDocument(fromPosition, toPosition, GMapV2GetRouteDirection.MODE_DRIVING);

                        response = "Success";

                  return response;

            }

            @Override

            protected void onPostExecute(String result) {

                  mGoogleMap.clear();

                  if(response.equalsIgnoreCase("Success")){

                  ArrayList<LatLng> directionPoint = v2GetRouteDirection.getDirection(document);

                  PolylineOptions rectLine = new PolylineOptions().width(10).color(

                              Color.RED);

                  for (int i = 0; i < directionPoint.size(); i++) {

                        rectLine.add(directionPoint.get(i));

                  }

                  // Adding route on the map

                  mGoogleMap.addPolyline(rectLine);

                  markerOptions.position(toPosition);

                  markerOptions.draggable(true);

                  mGoogleMap.addMarker(markerOptions);

                  }

                 

                  Dialog.dismiss();

            }

      }

      @Override

      protected void onStop() {

            super.onStop();

            finish();

      }

}

Draw Route Helper Class

package com.androidbunch.drawroutev2;

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;

import android.util.Log;

public class GMapV2GetRouteDirection {

    public final static String MODE_DRIVING = "driving";

    public final static String MODE_WALKING = "walking";

    public GMapV2GetRouteDirection() { }

    public Document getDocument(LatLng start, LatLng end, String mode) {

        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=driving";

        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(0);

        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(0);

        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(0);

        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(0);

        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;

    }

}

 Xml source Code

 activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    tools:context=".MainActivity" >

    <fragment

        android:id="@+id/map"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        class="com.google.android.gms.maps.SupportMapFragment" />

</RelativeLayout> 

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.androidbunch.drawroutev2"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="16" />

    <supports-screens

        android:anyDensity="true"

        android:largeScreens="true"

        android:normalScreens="true"

        android:resizeable="true"

        android:smallScreens="true" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@android:style/Theme.NoTitleBar" >

        <meta-data

            android:name="com.google.android.maps.v2.API_KEY"

            android:value="AIzaSyBE-ZNBoODzqQoA2BMswmoEWAeHMSvgt3M" />

        <activity

            android:name="com.androidbunch.drawroutev2.MainActivity"

            android:label="@string/app_name"

            android:screenOrientation="landscape" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

    <permission

        android:name="com.androidbunch.drawroutev2.permission.MAPS_RECEIVE"

        android:protectionLevel="signature" />

    <uses-feature

        android:glEsVersion="0x00020000"

        android:required="true" />

    <uses-permission android:name="com.androidbunch.drawroutev2.permission.MAPS_RECEIVE" />

    <uses-permission android:name="android.permission.INTERNET" />

    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

</manifest>