ExpandableListView 에서 Scroll to Position

ExpandableListView 에서 원하는 GroupView 로 Scroll 하고 해당 Group 을 열기

ExpandableListView.setSelectionFromTop(groupPosition, 0);

ExpandableListView.expandGroup(groupPosition);

참고 :

- https://stackoverflow.com/questions/12762958/auto-scrolling-in-expandablelistview

- https://stackoverflow.com/a/25469385/3897810