xamarinios 
namespace MapKit
{
    [Register("MKUserTrackingBarButtonItem", true)]
    [Unavailable(PlatformName.TvOS, PlatformArchitecture.All, null)]
    public class MKUserTrackingBarButtonItem : UIBarButtonItem
    {
        [Obsolete("Does not return a valid instance on iOS 12.")]
        public MKUserTrackingBarButtonItem();
    }
}
Xamarin iOS
0.0
Information specific to xamarinios
Assembly

Xamarin.iOS , Version=0.0.0.0, PublicKeyToken=84e04ff9cfb79065

Referencing

The API is automatically referenced.

Obsolete Does not return a valid instance on iOS 12.
Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API