public override BMKOverlayView ViewForOverlay(BMKMapView mapView, BMKOverlay overlay)
{
if (typeof(BMKPolyline) == overlay.GetType())
{
Polyline poly = map.Map.Polylines.Find(overlay);
if (null != poly)
{
BMKPolylineView view = new BMKPolylineView(overlay);
view.StrokeColor = poly.Color.ToUIColor();
view.LineWidth = poly.Width;
return(view);
}
}
else if (typeof(BMKPolygon) == overlay.GetType())
{
Polygon poly = map.Map.Polygons.Find(overlay);
if (null != poly)
{
BMKPolygonView view = new BMKPolygonView(overlay);
view.StrokeColor = poly.Color.ToUIColor();
view.FillColor = poly.FillColor.ToUIColor();
view.LineWidth = poly.Width;
return(view);
}
}
else if (typeof(BMKCircle) == overlay.GetType())
{
Circle circle = map.Map.Circles.Find(overlay);
if (null != circle)
{
BMKCircleView view = new BMKCircleView(overlay);
view.StrokeColor = circle.Color.ToUIColor();
view.FillColor = circle.FillColor.ToUIColor();
view.LineWidth = circle.Width;
return(view);
}
}
Debug.WriteLine("MapViewViewForOverlay: " + overlay.GetType());
return(null);
}
protected override void OnItemPropertyChanged(object sender, PropertyChangedEventArgs e)
{
Polygon item = (Polygon)sender;
BMKPolygon native = (BMKPolygon)item?.NativeObject;
if (null == native)
{
return;
}
if (Annotation.TitleProperty.PropertyName == e.PropertyName)
{
native.Title = item.Title;
return;
}
if (Polyline.PointsProperty.PropertyName == e.PropertyName)
{
CLLocationCoordinate2D[] points = new CLLocationCoordinate2D[item.Points.Count];
for (int i = 0; i < points.Length; i++)
{
points[i] = item.Points[i].ToNative();
}
native.SetPolygonWithCoordinates(ref points[0], points.Length);
return;
}
if (Polyline.WidthProperty.PropertyName == e.PropertyName)
{
BMKPolygonView view = NativeMap.ViewForAnnotation(native);
if (view != null)
{
view.LineWidth = item.Width;
}
return;
}
if (Polyline.ColorProperty.PropertyName == e.PropertyName)
{
BMKPolygonView view = NativeMap.ViewForAnnotation(native);
if (view != null)
{
view.StrokeColor = item.Color.ToUIColor();
}
return;
}
if (Polygon.FillColorProperty.PropertyName == e.PropertyName)
{
BMKPolygonView view = NativeMap.ViewForAnnotation(native);
if (view != null)
{
view.FillColor = item.Color.ToUIColor();
}
return;
}
}
