gistfile1.txt

public class SpinnerLayer : CAShapeLayer
{

public class AnimationBlockerDelegate : NSObject,ICALayerDelegate, ICAAction
{
    public static readonly AnimationBlockerDelegate Instance= new AnimationBlockerDelegate();

    protected AnimationBlockerDelegate()
    {


    }

    [Export("actionForLayer:forKey:")]
    public NSObject ActionForLayer ( CALayer layer,String eventkey)
    {
        return this;
    }

    public void RunAction(string eventkey, NSObject obj, NSDictionary arguments)
    {


    }
}

public SpinnerLayer()
{

var rect= new CGRect(0,0,20,20);
var path= new CGPath();

}
}