HOI

using System;
using System.Collections.Generic;
using System.Linq;
using Android.Webkit;
using Android.Locations;
using Android.App;
using Android.Widget;
using Android.OS;
using System.Text;
using Android.Util;
using Android.Content;
using Org.Json;
using Android.Graphics;

namespace NationaleApp
{
    [Activity (Label = "mapActivity", Theme = "@android:style/Theme.NoTitleBar")]
    public class mapActivity : Activity, ILocationListener
    {
        TextView _locationText, _name;
        int longitude, latitude;
        LocationManager mLocationManager;
        Location myLocation;
        WebView webview;
        Zoeken searched;
        Double searchedLat, searchedLng;

        protected override void OnCreate (Bundle bundle)
        {
            base.OnCreate (bundle);

            searched = Tools.FromJSON<Zoeken>(Intent.GetStringExtra ("data"));
            // Set our view from the "main" layout resource
            SetContentView (Resource.Layout.Map);

            //webview.SetWebViewClient (new CustomWebViewClient ());

            _locationText = FindViewById<TextView> (Resource.Id.location_text);
            _locationText.Text = searched.school.pltsnm;

            _name = FindViewById<TextView> (Resource.Id.testText);
            _name.Text = searched.school.nm;

            myLocation = getLastKnownLocation ();
            createMap ();

            getLocationByPostcode (searched.school.pstcode);

            Console.WriteLine("map.html?longitude=" + myLocation.Longitude + "&latitude=" + myLocation.Latitude + "&longitude2=" + searchedLng + "&latitude=" + searchedLat + "&nm=" + searched.school.nm + "&tel=" + searched.school.telnmr);
            webview.LoadUrl ("file:///android_asset/Website/map.html?longitude=" + myLocation.Longitude + "&latitude=" + myLocation.Latitude + "&longitude2=" + searchedLng + "&latitude=" + searchedLat + "&nm=" + searched.school.nm + "&tel=" + searched.school.telnmr);
            //webview.EvaluateJavascript("drawSearched(" + searchedLat + ", " + searchedLng + ", '" + searched.school.nm + "', " + searched.school.telnmr + ");", null);
        }

        public void OnLocationChanged(Location loc) {
            Toast.MakeText(
                this,
                "Location changed: Lat: " + loc.Latitude + " Lng: "
                + loc.Longitude, ToastLength.Short).Show();
            string longitude = "Longitude: " + loc.Longitude;
            Log.Debug("Longtitude", longitude);
            string latitude = "Latitude: " + loc.Latitude;
            Log.Debug("Latitude", latitude);

            /*------- To get city name from coordinates -------- */
            String cityName = null;
            Geocoder gcd = new Geocoder(this.BaseContext, this.Resources.Configuration.Locale);
            List<Address> addresses;
            try {
                addresses = new List<Address>(gcd.GetFromLocation(loc.Latitude,
                    loc.Longitude, 1));
                if (addresses.Count() > 0) {
                    Log.Debug("location{0}", addresses.ElementAt(0).Locality);
                    //System.out.println(addresses.get(0).getLocality());
                    cityName = addresses.ElementAt(0).Locality;
                }
            }
            catch (IndexOutOfRangeException e) {
                e.ToString();
            }
            String s = longitude + "\n" + latitude + "\n\nMy Current City is: "
                + cityName;
            webview.EvaluateJavascript("postionChanged(" + latitude + ", " + longitude + ");", null);
            this.longitude = Convert.ToInt16(loc.Longitude);
            this.latitude = Convert.ToInt16(loc.Latitude);
        }

        public void createMap()
        {
            //LocationManager locationManager = (LocationManager)
            //  this.GetSystemService (Context.LocationService);

            ILocationListener locationListener = this;
            mLocationManager.RequestLocationUpdates(
                LocationManager.GpsProvider, 5000, 10, locationListener);

            //string locationProvider = LocationManager.GpsProvider;
            //Location lastKnowLocation = locationManager.GetLastKnownLocation (locationProvider);

            webview = FindViewById<WebView> (Resource.Id.webView1);
            webview.Settings.JavaScriptEnabled = true;
        }


        private void getLocationByPostcode(string pstcode)
        {
            string URL = "http://maps.google.com/maps/api/geocode/json?address=" + pstcode;
            JSONObject jsonobject = null;
            string data = Tools.DownloadDataFromUrl (URL);
            try {
                jsonobject = new JSONObject(data);

            } catch(Exception t) {
                Console.WriteLine ("Could not parse Json: " + t.ToString());
            }

            searchedLat = jsonobject.GetJSONArray("results").GetJSONObject (0).GetJSONObject("geometry").GetJSONObject ("location").GetDouble ("lat");
            searchedLng = jsonobject.GetJSONArray("results").GetJSONObject (0).GetJSONObject("geometry").GetJSONObject ("location").GetDouble ("lng");
        }

        private Location getLastKnownLocation() {
            mLocationManager = (LocationManager)
                this.GetSystemService (Context.LocationService);
            IList<string> providers =  mLocationManager.GetProviders(true);
            Location bestLocation = null;
            foreach (string provider in providers) {
                Location l = mLocationManager.GetLastKnownLocation(provider);
                if (l == null) {
                    continue;
                }
                if (bestLocation == null || l.Accuracy < bestLocation.Accuracy) {
                    // Found best last known location: %s", l);
                    bestLocation = l;
                }
            }
            return bestLocation;
        }

        public void OnProviderDisabled(String provider) {}

        public void OnProviderEnabled(String provider) {}

        public void OnStatusChanged(String provider, Availability available, Bundle extras) {}

        public void Dispose() { }
    }
}