private static void OnPinsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
BindableMap map = (BindableMap)d;
//If the pin collection changes, then reset the map view.
map.ClearMapPoints();
map.SubscribeToCollectionChanged();
}
protected override void OnElementChanged(Xamarin.Forms.Platform.Android.ElementChangedEventArgs <Map> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
NativeMap.InfoWindowClick -= OnInfoWindowClick;
}
if (e.NewElement != null)
{
formsMap = (BindableMap)e.NewElement;
customPins = formsMap.MapPins;
Control.GetMapAsync(this);
}
}
protected override void OnElementChanged(ElementChangedEventArgs <View> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
var nativeMap = Control as MKMapView;
if (nativeMap != null)
{
//rendering for route
nativeMap.RemoveOverlays(nativeMap.Overlays);
nativeMap.OverlayRenderer = null;
polylineRenderer = null;
//rendering for annotations (pins)
nativeMap.RemoveAnnotations(nativeMap.Annotations);
nativeMap.GetViewForAnnotation = null;
}
}
if (e.NewElement != null)
{
BindableMap formsMap = (BindableMap)e.NewElement;
var nativeMap = Control as MKMapView;
nativeMap.OverlayRenderer = GetOverlayRenderer;
CLLocationCoordinate2D[] coords = new CLLocationCoordinate2D[formsMap.RouteCoordinates.Count];
int index = 0;
foreach (var position in formsMap.RouteCoordinates)
{
coords[index] = new CLLocationCoordinate2D(position.Latitude, position.Longitude);
index++;
}
var routeOverlay = MKPolyline.FromCoordinates(coords);
nativeMap.AddOverlay(routeOverlay);
//var mypins = formsMap.Pins;
nativeMap.GetViewForAnnotation = GetViewForAnnotation;
}
}
