private void Initialize()
{
// Create new Map using spatial reference as world bonne (54024)
Map myMap = new Map(SpatialReference.Create(54024));
// Adding a map image layer which can reproject itself to the map's spatial reference
// Note: Some layer such as tiled layer cannot reproject and will fail to draw if their spatial
// reference is not the same as the map's spatial reference
ArcGISMapImageLayer operationalLayer = new ArcGISMapImageLayer(new Uri(
"https://sampleserver6.arcgisonline.com/arcgis/rest/services/SampleWorldCities/MapServer"));
// Add operational layer to the Map
myMap.OperationalLayers.Add(operationalLayer);
// Assign the map to the MapView
_myMapView.Map = myMap;
}