Check for zipcode , latitud, longitud range - using TKCustomMap-Xamarin-Forms

Question

I have a map that returns current address and location also geo coordinates. However, I would like to add a condition as follows : if address.zipcode is ( 05001 ||05009||05030 ) do something , if not display an alert . Zip Codes for the State of Vermont

Zip Code City Zip Code Map 05001 White River Junction 05009 White River Junction
05030

The problem I am facing is , it returned the full address as a string. Is there any way I could validate only using the zipcode? so far , I tried if (address.title .contains("05001")); {do this...} else{alert..} Unfortunately , this wont work because those numbers can represent other things as a house number , city name , state or country etc. but the condition does not guarantee that it is in the states.

Thanks in advance !

Answer 1

Unfortunately the reverse geolocalization it returns a List<string> which cannot provide the field to access the specific information.
You can anyway do a dirty job reading the zip code splitting the string and getting the fourth element. (the zip code should be in this position, but you should double check)
Something like that:

var geo = new Geocoder ();
string []x;

var addresses = await geo.GetAddressesForPositionAsync (new Position (12.34516, -12.345678));
x = addresses.FirstOrDefault ().Split (',');

if(x[3].Contains("your zip code"))
    DisplayAlert("Alert");

It's not that elegant/robust but should do the job