public override void DidEnterBackground(UIApplication application)
{
var subViews = mapViewController.View.Subviews;
MKMapView mapView = subViews[0] as MKMapView;
Console.WriteLine("mapView: {0}", mapView);
var tempArray = mapView.Annotations;
NSMutableArray annotations = new NSMutableArray();
Console.WriteLine("tempArray: {0}", tempArray.ToString());
for (int i = 0; i < tempArray.Length; i++)
{
if (tempArray[i].GetType() == typeof(MKUserLocation))
{
Console.WriteLine("MKUserLocation: {0}", tempArray[i]);
}
else
{
Console.WriteLine("MKMapPoint added: {0}", tempArray[i]);
annotations.Add(tempArray[i]);
}
}
var documentDirectories = NSSearchPath.GetDirectories(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomain.User, true);
string documentDirectory = documentDirectories[0];
string path = Path.Combine(documentDirectory, "annotations.archive");
Console.WriteLine("Path: {0}", path);
bool success = NSKeyedArchiver.ArchiveRootObjectToFile(annotations, path);
if (success)
{
Console.WriteLine("Saved Annotations {0}", annotations.ToString());
}
}
