Android ListView - stop scrolling at 'whole' row position

Question

Sorry for the confusing title, I cannot express the problem very concisely...

I have an Android app with a ListView that uses a circular / \"infinite\" adapter, whi

Answer 1

Here's my final code inspired by Shade's answer.

I forgot to add "if(Math.abs(r.height())!=height)" at first. Then it just scrolls twice after it scroll to correct position because it's always greater than height/2 of childView. Hope it helps.

listView.setOnScrollListener(new AbsListView.OnScrollListener(){

            @Override
            public void onScrollStateChanged(AbsListView view,int scrollState) {
                if (scrollState == SCROLL_STATE_IDLE){
                    View child = listView.getChildAt (0);    // first visible child
                    Rect r = new Rect (0, 0, child.getWidth(), child.getHeight());     // set this initially, as required by the docs
                    double height = child.getHeight () * 1.0;
                    listView.getChildVisibleRect (child, r, null);
                    if(Math.abs(r.height())!=height){//only smooth scroll when not scroll to correct position
                        if (Math.abs (r.height ()) < height / 2.0) {
                            listView.smoothScrollToPosition(listView.getLastVisiblePosition());
                        }
                        else if(Math.abs (r.height ()) > height / 2.0){
                            listView.smoothScrollToPosition(listView.getFirstVisiblePosition());
                        }
                        else{
                            listView.smoothScrollToPosition(listView.getFirstVisiblePosition());
                        }

                    }
                }
            }

            @Override
            public void onScroll(AbsListView view, int firstVisibleItem,int visibleItemCount, int totalItemCount) {

            }});