public static void ShowWindow(List <T> data, Action <T> onObjectPicked, Predicate <T> predicate = null)
{
if (_instance == null)
{
_instance = CreateInstance <PickerWindow <T> >();
}
_instance.Data = data;
_instance.OnElementPicked = onObjectPicked;
_instance.Filter = predicate;
_instance.ShowUtility();
}
void OnDestroy()
{
_instance = null;
}