public async void DontSendCurrentLocationAnymoreAsync()
{
GeolocationRequest request;
request = new GeolocationRequest(GeolocationAccuracy.Best);
Xamarin.Essentials.Location location;
try
{
location = await Geolocation.GetLocationAsync(request);
Models.Location customLocation = new Models.Location(location);
await customLocation.GetRegion();
PrimitiveLocation primitiveLocation = new PrimitiveLocation(customLocation);
var conn = new SQLiteAsyncConnection(App.FilePath);
conn.CreateTableAsync <PrimitiveLocation>().Wait();
await conn.InsertAsync(primitiveLocation).ContinueWith((t) =>
{
Debug.WriteLine("New ID from t: {0}", t.Id);
Debug.WriteLine("New ID: {0} from customLocation", primitiveLocation.LocationId);
});
await conn.CloseAsync();
}
catch (Exception e)
{
//TODO:
// retry to get the location
}
}
/// <summary>
/// Sends the user's location to the server if the distance is to the last request is larger than 10m, otherwise an exponential backoff occrus
/// Backoff = (previous backoff ^ 2)
/// </summary>
protected async void Track()
{
bool success = false;
int retry = 0;
retry = 0;
try
{
// TODO:
// faster they go, the more locations sent and slower they go the less
request = new GeolocationRequest(GeolocationAccuracy.Best);
Xamarin.Essentials.Location location = null;
if (Previous_request != null)
{
location = await Geolocation.GetLocationAsync(request);
Models.Location customLocation = new Models.Location(location);
if (!LocationService.LocationSavedToNotSend(customLocation))
{
if (location.CalculateDistance(Previous_request, DistanceUnits.Kilometers) >= MetersConsidedUserMoved)
{
await customLocation.GetRegion();
_Backoff = Initial_Backoff;
Track_Retry = 0;
SendUserLocation(customLocation);
}
else
{
ExtendBackoff();
SendUserLocation(customLocation);
}
}
else
{
ExtendBackoff();
}
}
else
{
location = await Geolocation.GetLocationAsync(request);
Models.Location customLocation = new Models.Location(location);
if ((!LocationService.LocationSavedToNotSend(customLocation)))
{
await customLocation.GetRegion();
SendUserLocation(customLocation);
}
}
Previous_request = location;
success = true;
}
catch (Exception e)
{
Debug.WriteLine(e.StackTrace);
//retry for getting the geolocation
retry++;
}
}