private void AddViewObservers()
{
_observer = new KVOObserver();
_kvoController = FBKVOController.ControllerWithObserver(_observer);
_kvoController.Observe(View, "frame", NSKeyValueObservingOptions.OldNew, CallbackFromKVO);
_kvoController.Observe(View.Layer, "bounds", NSKeyValueObservingOptions.OldNew, CallbackFromKVO);
}
private void RemoveViewObservers()
{
if (_kvoController != null)
{
_kvoController.UnobserveAll();
_kvoController.Dispose();
_kvoController = null;
}
if (_observer != null)
{
_observer.Dispose();
_observer = null;
}
}