ExpandableListView取消点开分组滚动效果增加点击分组置顶功能

expandableListView.setOnGroupClickListener(new OnGroupClickListener() {
            
            @Override
            public boolean onGroupClick(ExpandableListView parent, View v,int groupPosition, long id) {
                if(parent.isGroupExpanded(groupPosition)){
                    parent.collapseGroup(groupPosition);
                }else{
                    //第二个参数false表示展开时是否触发默认滚动动画
                    parent.expandGroup(groupPosition,false);
                    parent.setSelectedGroup(groupPosition);//点击分组置顶
                }
                return true;
            }
        });