/// <summary>
        /// 
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        async private void TraceLocationActivity_Click(object sender, EventArgs e)
        {
            try
            {
                longlat = new Coordinates();

                if (_inputId.Text == "")
                {
                    Toast.MakeText(this, "First Enter id to Trace Location", ToastLength.Long);
                }

                else
                {
                    //Send ID to webRequest class to request server 
                    longlat.uniqueId = int.Parse(_inputId.Text);
                    longlat = await WebRequestServer.TraceLastKnownLocation(longlat);

                    if (longlat == null)
                    {
                        _showData.Text = string.Format("Latitude: " + "N\\A" + "\nLongitude: " + "N\\A" + "\nAccuracy: " + "N\\A" + "\nDatetime: " + "N\\A" + "\nSpeed: " + "N\\A" + "\nBearing: " + "N\\A" + "\nAltitude: " + "N\\A");
                    }

                    else
                        _showData.Text = string.Format("Latitude: " + longlat.Latitude + "\nLongitude: " + longlat.Longitude + "\nAccuracy: " + longlat.Accuracy + "\nDateTime: " + longlat.timeStamp + "\nSpeed: " + longlat.speed + "\nBearing: " + longlat.Bearing + "\nAltitude: " + longlat.altittude);
                }
                streetAddress(longlat);
            }
            catch (Exception ex)
            {
                throw;
            }
        }
Esempio n. 2
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        /// <summary>
        /// Firsst Activity to run
        /// </summary>
        /// <param name="bundle"></param>
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            //Check for already stored preferences
            ISharedPreferences pref = Application.Context.GetSharedPreferences("UserInfo", FileCreationMode.Private);
            string uniqueId = pref.GetString("UniqueId", String.Empty);

            //If not then take it to login Activity
            if (uniqueId == string.Empty)
            {
                Intent intent = new Intent(this, typeof(LoginActivity));
                this.StartActivity(intent);
                this.Finish();
            }

            //If any then save it to coordinates class and send it to Main Activity
            else
            {
                Coordinates getUniqueId = new Coordinates
                {
                    uniqueId = int.Parse(uniqueId)
                };

                Intent intent = new Intent(this, typeof(GelLocation));
                //Send preferences to main activity
                intent.PutExtra("user", JsonConvert.SerializeObject(getUniqueId));
                this.StartActivity(intent);
                this.Finish();
            }
        }
Esempio n. 3
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        //http://gpsworld.com/what-exactly-is-gps-nmea-data/

        static public GPS.Coordinates ParseNmeaToLonLat(string nmeaData, string nmeaType)
        {
            GPS.Coordinates coords = new GPS.Coordinates();

            string[] srvrMsgs = nmeaData.Split(',');

            if (srvrMsgs [0] == nmeaType)
            {
                double Lat = Convert.ToDouble(srvrMsgs [2]) / 100;                  //32.226984
                double Lon = Convert.ToDouble(srvrMsgs [4]) / 100;                  //86.186043
                double Alt = Convert.ToDouble(srvrMsgs [9]);

                //Debug.Log("Lat: " + Lat);
                //Debug.Log("Lon: " + Lon);

                double Lat_deg = Convert.ToDouble(Math.Floor(Lat));                   //32
                double Lon_deg = Convert.ToDouble(Math.Floor(Lon));                   //86

                //Debug.Log("Lat_deg: " + Lat_deg);
                //Debug.Log("Lon_deg: " + Lon_deg);

                double Lat_minute = (Lat - Lat_deg) * 100 / 60;                 //(0.226984*100)/60 = (22.6984)/60 = 0.378306
                double Lon_minute = (Lon - Lon_deg) * 100 / 60;                 //(0.186043*100)/60  = (18.6043)/60 = 0.310071

                //Debug.Log("Lat_minute: " + Lat_minute);
                //Debug.Log("Lon_minute: " + Lon_minute);

                coords.lat = Lat_deg + Lat_minute;                //32.378306
                coords.lon = Lon_deg + Lon_minute;                //86.310071

                //Debug.Log("Lat_dec_deg: " + Lat_dec_deg);
                //Debug.Log("Lon_dec_deg: " + Lon_dec_deg);

                if (srvrMsgs [3] == "S")
                {
                    coords.lat = coords.lat * -1;
                }

                if (srvrMsgs [5] == "W")
                {
                    coords.lon = coords.lon * -1;
                }

                coords.alt = Alt;

                //Debug.Log ("Lat: " + Lat.ToString () + "\nLon: " + Lon.ToString () + "\n" + Alt.ToString ("0.0") + "MSL");

                //gameObject.GetComponent<TextMesh> ().text = "Lat: " + Lat.ToString () + "\nLon: " + Lon.ToString () + "\n" + Alt.ToString ("0.0") + "MSL";

                return(coords);
            }

            return(null);
        }
Esempio n. 4
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        /// <summary>
        /// 
        /// </summary>
        /// <param name="bundle"></param>
        async protected override void OnCreate(Bundle bundle)
        {
            try
            {
                base.OnCreate(bundle);
                //Get object of this class to show data in broadc
                GelLocation.instance = this;

                SetContentView(Resource.Layout.GetLocation);
                _locationText = FindViewById<TextView>(Resource.Id.currentLocationTextView);
                _addressText = FindViewById<TextView>(Resource.Id.addressTextView);
                _lastKnownLocation = FindViewById<TextView>(Resource.Id.lastLocationTextView);
                _lastTimeStamp = FindViewById<TextView>(Resource.Id.lastTwoTimeStamp);
                _listOfProvider = FindViewById<TextView>(Resource.Id.providerList);
                _traceLocationButton = FindViewById<Button>(Resource.Id.traceLocationButton);
                _idView = FindViewById<TextView>(Resource.Id.idView);
                _traceLocationButton.Click += _traceLocationButton_Click;



                //Get shared preferences data 
                sharedPreferenceId = JsonConvert.DeserializeObject<Coordinates>(Intent.GetStringExtra("user"));
                //Show id
                _idView.Text = "User Id: " + sharedPreferenceId.uniqueId.ToString();

                //Get device id for currentr user
                getDeviceId();

                //Get last known location of current user
                latlon.uniqueId = sharedPreferenceId.uniqueId;
                latlon = await WebRequestServer.GetLastKnownLocation(latlon);


                //if respond is null
                if (latlon == null)
                {
                    _lastKnownLocation.Text = string.Format("Latitude: " + "N\\A" + "\nLongitude: " + "N\\A" + "\nAccuracy: " + "N\\A" + "\nDatetime: " + "N\\A" + "\nBearing: " + "N\\A" + "\nAltitude: " + "N\\A");
                }

                //Otherwise perform
                else
                    _lastKnownLocation.Text = string.Format("Latitude: " + latlon.Latitude + "\nLongitude: " + latlon.Longitude + "\nAccuracy: " + latlon.Accuracy + "\nDateTime: " + latlon.timeStamp + "\nBearing: " + latlon.Bearing+ "\nAltitude: " + latlon.altittude);

            }
            catch (Exception ex)
            {
                throw;
            }
        }
 /// <summary>
 /// Service broadcasting to activities along with data 
 /// </summary>
 /// <param name="location"></param>
 /// <param name="InComingData"></param>
 private void BroadcastStarted(Coordinates location, string InComingData)
 {
     try
     {
         Intent BroadcastIntent = new Intent(this, typeof(GelLocation.MyLocationReceiver));
         BroadcastIntent.SetAction(GelLocation.MyLocationReceiver.GRID_STARTED);
         BroadcastIntent.AddCategory(Intent.CategoryDefault);                
         var cordinates = JsonConvert.SerializeObject(location);
         BroadcastIntent.PutExtra(InComingData, cordinates);
         SendBroadcast(BroadcastIntent);
     }
     catch (Exception ex)
     {
         Toast.MakeText(Application.Context, "Broadcast", ToastLength.Long).Show();
     }
 }
Esempio n. 6
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        private void _loginButton_Click(object sender, EventArgs e)
        {
            try
            {
                Coordinates getUniqueId = new Coordinates
                {
                    //Save textbox id in object
                    uniqueId =  int.Parse(_uniqueId.Text)
                };

                //If checkbox is enabled or disable then save data in shared preference
                if (_rememberMe.Checked || _rememberMe.Checked == false)
                {

                    ISharedPreferences pref = Application.Context.GetSharedPreferences("UserInfo", FileCreationMode.Private);
                    //Enable us to edit file
                    ISharedPreferencesEditor edit = pref.Edit();
                    edit.PutString("UniqueId", _uniqueId.Text.Trim());
                    edit.Apply();

                    Intent intent = new Intent(this, typeof(GelLocation));
                    //Send preferences to main activity
                    intent.PutExtra("user", JsonConvert.SerializeObject(getUniqueId));
                    this.StartActivity(intent);
                    //User cannot navigate to this activity
                    this.Finish();
                }

                //Otherwise dont save in preferences only send data to main activity
                //else
                //{
                //    Intent intent = new Intent(this, typeof(GelLocation));
                //    //Send preferences to main activity
                //    intent.PutExtra("user", JsonConvert.SerializeObject(getUniqueId));
                //    this.StartActivity(intent);
                //    //User cannot navigate to this activity
                //    this.Finish();
                //}

            }
            catch (Exception ex)
            {
                throw;
            }
        }
        // private static Uri ServerRootURL = new Uri("http://pggpstracker.azurewebsites.net/");
        // private static string ServerLocation = "/api/location/";

        /// <summary>
        /// 
        /// </summary>

        /// <summary>
        /// Sending data in Json format to webservice
        /// </summary>
        /// <param name="longlat"></param>
        /// <returns></returns>
        async public static Task<string> SendingCordinates(Coordinates longlat)
        {
            try
            {
                HttpClient client = new HttpClient();
                client.BaseAddress = ServerRootURL;
                client.DefaultRequestHeaders.Add("Accept", "application/json");
                string requestJson = JsonConvert.SerializeObject(longlat);
                StringContent requestContent = new StringContent(requestJson);
                requestContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");
                HttpResponseMessage response = await client.PostAsync(ServerLocation + "getlocation", requestContent);

                //If reponse is true
                if (response.IsSuccessStatusCode)
                {
                    return "Saved on server";
                }

                //If resource not found
                else if (response.StatusCode == System.Net.HttpStatusCode.NotFound)
                {
                    return "Resource " + response.ReasonPhrase;
                }

                else
                    return "Unable to save";

            }

            catch (System.Net.WebException ex)
            {
                return "Server Not Found";
            }

            catch (Exception ex)
            {
                throw;
            }
        }
        /// <summary>
        /// Retreiveing Data
        /// </summary>
        /// <param name="longlat"></param>
        /// <returns></returns>
        async public static Task<Coordinates> GetLastKnownLocation(Coordinates longlat)
        {
            try
            {
                RequestModel rm = new RequestModel();
                rm.LocationsObject = longlat;
                HttpClient client = new HttpClient();
                client.BaseAddress = ServerRootURL;
                client.DefaultRequestHeaders.Add("Accept", "application/json");
                string requestJson = JsonConvert.SerializeObject(rm);
                StringContent requestContent = new StringContent(requestJson);
                requestContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");
                HttpResponseMessage response = await client.PostAsync(ServerLocation + "tracelastlocation", requestContent);

                if (response.StatusCode == System.Net.HttpStatusCode.NoContent)
                {
                    Toast.MakeText(Application.Context, "Id Not Available", ToastLength.Short).Show();
                    return null;
                }

                else if (response.IsSuccessStatusCode)
                {
                    string lastLocation = await response.Content.ReadAsStringAsync();
                    longlat = JsonConvert.DeserializeObject<Coordinates>(lastLocation);
                    return longlat;
                }

                //If resource not found
                else if (response.StatusCode == System.Net.HttpStatusCode.NotFound)
                {
                    return null;
                }

                //Id content not found
                else
                    return null;
            }

            catch (System.Net.WebException ex)
            {
                return null;
            }

            catch (TaskCanceledException ex)
            {
                throw;
            }

            catch (Exception ex)
            {

                throw;
            }
        }
        /// <summary>
        /// Street Address
        /// </summary>
        /// <param name="latlon"></param>
        async private void streetAddress(Coordinates latlon)
        {
            try
            {
                if (latlon == null || latlon.Latitude == 0 || latlon.Longitude == 0 )
                {
                    _streetAddress.Text = "Can't determine the current address.";
                    return;
                }

                Geocoder geocoder = new Geocoder(this);
                IList<Address> addressList = await geocoder.GetFromLocationAsync(latlon.Latitude, latlon.Longitude, 10);
                Address address;
                List<string> allLocations = new List<string>();


                for (int j = 0; j < addressList.Count; j++)
                {
                    address = addressList.ElementAt(j);

                    if (address != null)
                    {
                        StringBuilder deviceAddress = new StringBuilder();
                        for (int i = 0; i <= address.MaxAddressLineIndex; i++)
                        {
                            deviceAddress.Append(address.GetAddressLine(i)).AppendLine(",");
                        }
                        _streetAddress.Text = deviceAddress.ToString();
                    }
                    else
                    {
                        _streetAddress.Text = "Unable to determine the address.";
                    }

                    allLocations.Add(_streetAddress.Text);
                }
                _streetAddress.Text = string.Join("\n", allLocations);

            }

            catch (Java.IO.IOException ex)
            {
                Toast.MakeText(this, "Network is unreachable", ToastLength.Short).Show();
            }

            catch (Exception ex)
            {
                throw;
            }

        }