Maintain scroll position when adding to ListView with reverse endless-scrolling

Question

I am building a chat-like Android application, similar to Hangouts. For this purpose I am using a vertical ListView with stackFromBottom=true and transcriptMo

Answer 1

I have figured this out. Wherever it is that you are getting new data I call the following before changing data in the adapter:

int firstVisibleItem = list.getFirstVisiblePosition();
int oldCount = adapter.getCount();
View view = list.getChildAt(0);
int pos = (view == null ? 0 :  view.getBottom());

Then I call:

adapter.setData(data);

list.setSelectionFromTop(firstVisibleItem + adapter.getCount() - oldCount + 1, pos);