protected override void OnElementChanged(ElementChangedEventArgs <Map> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
nativeMap.MapElementClick -= OnMapElementClick;
nativeMap.Children.Clear();
mapOverlay = null;
nativeMap = null;
}
if (e.NewElement != null)
{
var formsMap = (CustomMap)e.NewElement;
nativeMap = Control as MapControl;
customPins = formsMap.CustomPins;
nativeMap.Children.Clear();
nativeMap.MapElementClick += OnMapElementClick;
foreach (var pin in customPins)
{
if (pin.Id == "Xamarin")
{
Ico = "ms-appx:///pinN.png";
}
if (pin.Id == "Tt")
{
Ico = "ms-appx:///pin2.png";
}
if (pin.Id == "Oo")
{
Ico = "ms-appx:///pin.png";
}
if (pin.Id == "Or")
{
Ico = "ms-appx:///pin3.png";
}
var snPosition = new BasicGeoposition {
Latitude = pin.Pin.Position.Latitude, Longitude = pin.Pin.Position.Longitude
};
var snPoint = new Geopoint(snPosition);
var mapIcon = new MapIcon();
mapIcon.Image = RandomAccessStreamReference.CreateFromUri(new Uri(Ico));
mapIcon.CollisionBehaviorDesired = MapElementCollisionBehavior.RemainVisible;
mapIcon.Location = snPoint;
mapIcon.NormalizedAnchorPoint = new Windows.Foundation.Point(0.5, 1.0);
nativeMap.MapElements.Add(mapIcon);
}
}
}
private void OnMapElementClick(MapControl sender, MapElementClickEventArgs args)
{
var mapIcon = args.MapElements.FirstOrDefault(x => x is MapIcon) as MapIcon;
if (mapIcon != null)
{
if (!xamarinOverlayShown)
{
var customPin = GetCustomPin(mapIcon.Location.Position);
if (customPin == null)
{
throw new Exception("Custom pin not found");
}
if (customPin.Id == "Xamarin")
{
// if (mapOverlay == null)
//{
mapOverlay = new XamarinMapOverlay(customPin);
// }
var snPosition = new BasicGeoposition
{
Latitude = customPin.Pin.Position.Latitude,
Longitude = customPin.Pin.Position.Longitude
};
var snPoint = new Geopoint(snPosition);
nativeMap.Children.Add(mapOverlay);
MapControl.SetLocation(mapOverlay, snPoint);
MapControl.SetNormalizedAnchorPoint(mapOverlay, new Windows.Foundation.Point(0.5, 1.0));
xamarinOverlayShown = true;
}
else
{
if (customPin.Id == "Tt")
{
// if (mapOverlay == null)
//{
mapOverlayTt = new XamarinMapOverlayTt(customPin);
// }
var snPosition = new BasicGeoposition
{
Latitude = customPin.Pin.Position.Latitude,
Longitude = customPin.Pin.Position.Longitude
};
var snPoint = new Geopoint(snPosition);
nativeMap.Children.Add(mapOverlayTt);
MapControl.SetLocation(mapOverlayTt, snPoint);
MapControl.SetNormalizedAnchorPoint(mapOverlayTt, new Windows.Foundation.Point(0.5, 1.0));
xamarinOverlayShown = true;
}
else
{
if (customPin.Id == "Oo")
{
// if (mapOverlay == null)
//{
mapOverlayOo = new XamarinMapOverlayOo(customPin);
// }
var snPosition = new BasicGeoposition
{
Latitude = customPin.Pin.Position.Latitude,
Longitude = customPin.Pin.Position.Longitude
};
var snPoint = new Geopoint(snPosition);
nativeMap.Children.Add(mapOverlayOo);
MapControl.SetLocation(mapOverlayOo, snPoint);
MapControl.SetNormalizedAnchorPoint(mapOverlayOo, new Windows.Foundation.Point(0.5, 1.0));
xamarinOverlayShown = true;
}
else
{
// if (mapOverlay == null)
//{
mapOverlayOr = new XamarinMapOverlayOr(customPin);
// }
var snPosition = new BasicGeoposition
{
Latitude = customPin.Pin.Position.Latitude,
Longitude = customPin.Pin.Position.Longitude
};
var snPoint = new Geopoint(snPosition);
nativeMap.Children.Add(mapOverlayOr);
MapControl.SetLocation(mapOverlayOr, snPoint);
MapControl.SetNormalizedAnchorPoint(mapOverlayOr, new Windows.Foundation.Point(0.5, 1.0));
xamarinOverlayShown = true;
}
}
}
}
else
{
nativeMap.Children.Remove(mapOverlay);
nativeMap.Children.Remove(mapOverlayOo);
nativeMap.Children.Remove(mapOverlayOr);
nativeMap.Children.Remove(mapOverlayTt);
xamarinOverlayShown = false;
}
}
}