Using basemaps requiring credentials

DavidHope

I'm having the darnedest time creating a basemap based on a ArcGISTiledLayer that is coming from a Uri that requires credentials...

So here's what I'm doing:

        CurrentBasemapUrl = "https://tiledbasemaps.arcgis.com/arcgis/rest/services/World_Street_Map/MapServer"

      var server = CurrentBasemapUrl; // "https://maps.gvs.nga.mil/arcgis/rest/services/Basemap/NGA_World_Imagery_2D/MapServer";

 Esri.ArcGISRuntime.Security.AuthenticationManager.Current.ChallengeHandler = new ChallengeHandler(myChallengeHandler);

 myMap.Basemap = new Basemap(new ArcGISTiledLayer(new Uri(server)));

for myChallengeHandler, I have this:

static async Task<Credential> myChallengeHandler(CredentialRequestInfo cri)
{
   switch(cri.AuthenticationType)
   {
      case AuthenticationType.Token:
      var options = new Esri.ArcGISRuntime.Security.GenerateTokenOptions() { Referer = new Uri(CurrentBasemapUrl)};
      var user = "myusernameishere";
      var pass = "mypasswordishere";
      var cred = await AuthenticationManager.Current.GenerateCredentialAsync(
         new Uri("https://www.arcgis.com/sharing/rest/generatetoken"),user, pass, options);

      return cred;
   }
   return null;
}

when I do this, all I get is a grid, no maps. But I'm not getting any errors. Any ideas?

Using the same URL, I was able to successfully download a tile package.

If I change the URL to "http://services.arcgisonline.com/arcgis/rest/services/World_Street_Map/MapServer" (which doesn't require any creditials, it works fine.

Any help?

AnttiKajanus1

A long shot but just in case could you also make sure that the MapView has the same spatial reference than the layer you are using after the map is loaded?