Add Annotation to MKMapView from outside the UI thread

Question

I'm trying to display map markers from a API to my MKMapView. I'm coding inside Xamarin Studio for iOS. I'm calling the function getAllMarkers(); that I've created.

Which looks like this:

private void getAllMarkers()
{
    var client = new RestClient("http://example.com/");
    var request = new RestRequest(String.Format(""));

    client.ExecuteAsync (request, response => {
           JsonValue data = JsonValue.Parse(response.Content);
    for (var i = 0; i < data.Count; i++){
        var store = new BasicMapAnnotation (new CLLocationCoordinate2D(10.00, -1.00), "Shop name", "Extras);
        map.AddAnnotation(store);
     }
   });
}

This gives me the following error:

How can I add markers to the map from my function getAllMarkers()?

Answer 1

Use InvokeOnMainThread()

InvokeOnMainThread ( () => {
    // manipulate UI controls
 `  map.AddAnnotation(store);`
});