public void CrossGeolocator_Current_PositionChanged(object sender, PositionEventArgs e)
{
DurationString = DateTime.UtcNow.Subtract(_startTimeConst).ToString();
DurationLabel.Text = DurationString.ToString();
// TODO:
// попробовать вынести с главного потока
Device.BeginInvokeOnMainThread(() =>
{
var positionGeolocator = e.Position;
if ((positionGeolocator.Latitude != _previousPosition.Latitude) || (positionGeolocator.Longitude != _previousPosition.Longitude))
{
var snappedPointDb =
new SnappedPointDb
{
TrackId = _track.Id,
Latitude = positionGeolocator.Latitude,
Longitude = positionGeolocator.Longitude,
Time = positionGeolocator.Timestamp.UtcDateTime
};
App.SnappedPointDatabase.SaveItem(snappedPointDb);
_snappedPointsCount += 1;
_previousPosition = positionGeolocator;
}
});
}
public int SaveItem(SnappedPointDb item)
{
if (item.Id != 0)
{
database.Update(item);
return(item.Id);
}
else
{
return(database.Insert(item));
}
}
public SnappedPointDb[] GetItemsByTrackId(int trackId)
{
SnappedPointDb[] items;
try
{
items = GetItems().Where(i => i.TrackId == trackId).ToArray();
}
catch (Exception e)
{
items = new SnappedPointDb[] {};
}
return(items);
}
