GoogleServices.IsGoogleServicesAvailable

GoogleServices.cs

using System;
using Android.Content;
using Android.Gms.Common;
public static class GoogleServices
{
    private static Context _context;

    public static void Init(Context context)
    {
        _context = context;
    }

    public static bool IsGoogleServicesAvailable()
    {
        Ensure.Condition(_context != null, () => { throw new Exception("Make sure you have called GoogleServices.Init in MainActivity"); });

        var resultCode = GoogleApiAvailability.Instance.IsGooglePlayServicesAvailable(_context);
        return resultCode == ConnectionResult.Success;
    }
}