how to smooth scroll to specified position of the adapter in development branch

[pangff]

I use the development branch in my project to realize the horizontal listview. But,when I invoke the notifyDataSetReplaced and notifyDataSetAdded how I can smooth scroll to specified position of the adapter in development branch. I just want the specified position view show in the first position of the visible rect。I will be happy to getting your help, thanks a lot.