/// <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;
}
}
/// <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();
}
}
//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);
}
/// <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();
}
}
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;
}
}
