Programmatically collapse a group in ExpandableListView

Question

When I expand a new group, can I collapse the last one expanded?

Answer 1

Do this to expand the clicked group and collapse all others

public void onGroupExpand(int groupPosition)
{
    for (int i = 0; i < len; i++)
    {
        if (i != groupPosition)
        {
            expandableListDetailsLevel.collapseGroup(i);
        }
    }
}

It's working for me.