How to Display Pop Up when the Polygon is clicked in Xamarin

Question

I'm using WEB API to retrieve coordinates and display them as polygons on my Map. Now I want to make those Polygons(To be Clickable) when they clicked to display a pop with more information from the API.

 

My Xaml:

<StackLayout >
<maps:Map x:Name="map">
<x:Arguments>
<maps:MapSpan>
<x:Arguments>
<maps:Position>
<x:Arguments>
<x:Double>-30.241943</x:Double>
<x:Double>25.771944</x:Double>
</x:Arguments>
</maps:Position>
<x:Double>
20
</x:Double>
<x:Double>
20
</x:Double>
</x:Arguments>
</maps:MapSpan>
</x:Arguments>
<maps:Map.MapElements>
</maps:Map.MapElements>
</maps:Map>
</StackLayout>

C# code for adding my Polygons to the map:

foreach (var tempList in warningAlertsList)
{
string alertType = tempList.AlertType;
if (alertType == "Advisory")
{
polygon = new Polygon();
polygon.StrokeColor = Color.FromHex("ffff00");
polygon.FillColor = Color.FromHex("ffff00");
polygon.StrokeWidth = 5f;
foreach (var Poly in tempList.Polygon)
{
float Lat = float.Parse(Poly[0]);
float Long = float.Parse(Poly[1]);
polygon.Geopath.Add(new Position(Lat, Long));
}
// add to map
map.MapElements.Add(polygon);