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

First get the firstVisiblePosition (or the Last one since its upside down. Yo got to try and check it yourself) and then get the top of the View which is added to the List and then using setSe;ectionFromTop() method, you can scroll to the desired location.

Code:

int index = mList.getFirstVisiblePosition();
View v = mList.getChildAt(0); //or upside down (list.size - 1)
int top = (v == null) ? 0 : v.getTop(); //returns the top of the view its Y co-ordinates. [Doc][1]
mList.setSelectionFromTop(index, top);

Source.