android可展开(收缩)的列表ListView(ExpandableListView)=.doc

android可展开(收缩)的列表ListView(ExpandableListView)每天都在用QQ聊天,今天突然一想,android怎么实现列表的分组展开呢?看了看api,发现其实现过程也很简单。先看一下最终效果吧!1、首先创建我们的Activity,,直接看代码吧。.;;;.;/******@authorIdeasAndroid*可展开(收缩)列表示例*/lassIdeasExpandableListViewextendsExpandableListActivity{  ***@Override  publicvoidonCreate(BundlesavedInstanceState){      (savedInstanceState);      //设置列表适配器IdeasExpandableListAdapter      setListAdapter(newIdeasExpandableListAdapter(this));  }}复制代码2、创建适配器,。.;;;;;;;;;;/******@authorIdeasAndroid *可展开(收缩)列表示例*/lassIdeasExpandableListAdapterextendsBaseExpandableListAdapter{    privateContextmContext=null;    //测试数据,开发时可能来自数据库,网络....    privateString[]groups={"家人","朋友","同事"};    privateString[]familis={"老爸","老妈","妹妹"};    privateString[]friends={"小李","张三","李四"};    privateString[]colleagues={"陈总","李工","李客户"};    privateList<String>groupList=null;    privateList<List<String>>itemList=null;    publicIdeasEx