private void AddDrops(IList dropToAdd)
{
foreach (Drop drop in dropToAdd)
{
if (DropPins.All(x => x.Drop.Id != drop.Id))
{
DropPins.Add(CreateDropPin(drop));
}
}
}
private void RemoveDrops(IList dropsToRemove)
{
foreach (Drop removedDrop in dropsToRemove)
{
var removedDropPin = DropPins.FirstOrDefault(x => x.Drop.Id == removedDrop.Id);
if (removedDropPin != null)
{
DropPins.Remove(removedDropPin);
}
}
}
// add all drops from server to the map
public async Task ShowAllDrops(MapSpan currentMapVisibleRegion)
{
if (currentMapVisibleRegion != null)
{
SetMapCoordinates(currentMapVisibleRegion);
var dropsResult = await _dropService.GetDropsForMap(_mapNorth, _mapSouth, _mapWest, _mapEast);
foreach (var drop in dropsResult.Drops)
{
if (DropPins.All(x => x.Drop.Id != drop.Id &&
(x.Drop.Lat != drop.Lat && // needed
x.Drop.Lon != drop.Lon && // due to
x.Drop.Title != drop.Title))) // xamarin features
{
DropPins.Add(CreateDropPin(drop));
}
}
}
}
