Login requests on Xamarin.Forms

[Rykerm17]

Hi, I am having some issues with using a login request with SpotifyAPI-NET.

This is my code

  var (verifier, challenge) = PKCEUtil.GenerateCodes(120);

  var loginRequest = new LoginRequest(
      new Uri("urlschemetest://testurl"),
      "CLIENT_ID", LoginRequest.ResponseType.Code)
  { 
      CodeChallengeMethod = "S256",
      CodeChallenge = challenge, 
      Scope = new[] { Scopes.PlaylistReadPrivate, Scopes.PlaylistReadCollaborative, Scopes.UserLibraryRead }  //change these to add more permissions
  }; 

  var uri = loginRequest.ToUri();

  await Launcher.OpenAsync(uri);

and it goes to a page with "INVALID_CLIENT: Invalid redirect URI" written on it

In my MainActivity.cs I have this to change my app url to "urlschemetest://testurl"

  [IntentFilter(new[] { Intent.ActionView },
      Categories = new[] { Intent.CategoryDefault, Intent.CategoryBrowsable },
      DataScheme = "urlschemetest",
      DataHost = "testurl")]

Does anyone know how to fix these issues?