/// <summary>
/// Adds point-of-interest pin to designated location
/// </summary>
/// <param name="pin">Point-of-interest pin instance</param>
/// <param name="position">Latitude/longitude for pin placement</param>
public static void AddPointOfInterestPin(this Map m, PointOfInterestPin pin, LatLong position)
{
// add a new POI layer if needed
MapLayer poiLayer = PoiLayer(m);
if (poiLayer == null)
{
poiLayer = new MapLayer();
m.Layers.Add(poiLayer);
}
// add a new overlay for the current pin
var poiOverlay = new MapOverlay();
poiOverlay.Content = pin;
poiOverlay.GeoCoordinate = new GeoCoordinate(position.Latitude, position.Longitude);
poiOverlay.PositionOrigin = pin.AnchorPoint;
// add overlay to the layer
poiLayer.Add(poiOverlay);
}
/// <summary>
/// Adds point-of-interest pin to designated location
/// </summary>
/// <param name="pin">Point-of-interest pin instance</param>
/// <param name="position">Latitude/longitude for pin placement</param>
public static void AddPointOfInterestPin(this Map m, PointOfInterestPin pin, LatLong position)
{
// add a new POI layer if needed
MapLayer poiLayer = PoiLayer(m);
if (poiLayer == null)
{
poiLayer = new MapLayer();
m.Layers.Add(poiLayer);
}
// add a new overlay for the current pin
var poiOverlay = new MapOverlay();
poiOverlay.Content = pin;
poiOverlay.GeoCoordinate = new GeoCoordinate(position.Latitude, position.Longitude);
poiOverlay.PositionOrigin = pin.AnchorPoint;
// add overlay to the layer
poiLayer.Add(poiOverlay);
}
/// <summary>
/// Synchronizes changes to the ApiViewModel's Results collection. The elements of that collection are assumed
/// to implement IMappable (see the APIMASH_TomTom.TomTomCameraViewModel implementation for a sample reference).
/// This code should require no changed regardless as long as the items in the Results collection implement IMappable.
/// </summary>
void Results_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
// only additions and wholesale reset of the ObservableCollection are currently supported
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
foreach (var item in e.NewItems)
{
IMappable mapItem = (IMappable)item;
PointOfInterestPin poiPin = new PointOfInterestPin(mapItem);
poiPin.Tap += async (s, e2) =>
{
TheMap.HighlightPointOfInterestPin(DefaultViewModel.SelectedItem, false);
TheMap.HighlightPointOfInterestPin(poiPin.PointOfInterest, true);
await ProcessSelectedItem(item);
};
TheMap.AddPointOfInterestPin(poiPin, mapItem.Position);
}
break;
case NotifyCollectionChangedAction.Reset:
TheMap.ClearPointOfInterestPins();
break;
// case NotifyCollectionChangedAction.Remove:
//
// TODO: (optional) if your application allows items to be selectively removed from the view model
// code to remove a single associated push pin will be required.
//
//
//
// break;
// not implemented in this context
// case NotifyCollectionChangedAction.Replace:
// case NotifyCollectionChangedAction.Move:
}
}
