private void SubscribeToViewModel()
{
ShouldDispose(ViewModel.ChatList.Changed
.Where(list => list != null && list.NewItems.Count > 0)
.Subscribe(chatList => {
NSIndexPath[] indexes = new NSIndexPath[chatList.NewItems.Count];
for (int i = chatList.NewStartingIndex; i < chatList.NewItems.Count; i++)
{
indexes[i] = NSIndexPath.FromRowSection(i, 0);
}
ListView.BeginUpdates();
ListView.InsertRows(indexes, UITableViewRowAnimation.Fade);
ListView.EndUpdates();
}));
}