Collapse all group except selected group in expandable listview android

Have the current expanded group position stored in a variable. In onGroupExpanded do the following.

private int lastExpandedPosition = -1;private ExpandableListView lv; //your expandable listview...lv.setOnGroupExpandListener(new OnGroupExpandListener() {    @Override    public void onGroupExpand(int groupPosition) {            if (lastExpandedPosition != -1                    && groupPosition != lastExpandedPosition) {                lv.collapseGroup(lastExpandedPosition);            }            lastExpandedPosition = groupPosition;    }});

Use this code this will work

expandableList.setOnGroupExpandListener(new OnGroupExpandListener() {    int previousItem = -1;    @Override    public void onGroupExpand(int groupPosition) {        if(groupPosition != previousItem )            expandableList.collapseGroup(previousItem );        previousItem = groupPosition;    }});

@Override    public void onGroupExpanded(int groupPosition){        //collapse the old expanded group, if not the same        //as new group to expand        if(groupPosition != lastExpandedGroupPosition){            listView.collapseGroup(lastExpandedGroupPosition);        }        super.onGroupExpanded(groupPosition);                   lastExpandedGroupPosition = groupPosition;    }