ExpandableListView 保证只展开一组

expandableListView.setOnGroupExpandListener(new OnGroupExpandListener(){

            @Override

            public void onGroupExpand(int groupPosition) {

                //保证每次只展开一组

                int count=expandableListView.getExpandableListAdapter().getGroupCount();

                for(int i=0;i<count; i++){

                    if(groupPosition != i){

                        expandableListView.collapseGroup(i);

                    }

                }

            }

        });