Fragment1Activity详解-优快云博客

本文介绍了一个名为Fragment1Activity的类，该类继承自Fragment，并详细展示了其onCreateView方法的具体实现，包括视图初始化、数据获取、点击事件及XListView的操作。

public class Fragment1Activity extends Fragment {
   String url = "http://www.oschina.net/action/api/tweet_list?uid=0&pageIndex=0&pageSize=15";
   private View view;
   private XListView lv;
   private List<Tweet> list;
   private MyBaseAdapter adapter;
    private int index=15;
   @Override
   public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
       view = inflater.inflate(R.layout.activity_fragment1, container, false);
       //初始化数据
       initView();
       //xutils解析和数据
       getData();
       //XListView点击事件
       initOnclick();
       //xlistview的事件
       initX();
       return view;
   }

   private void initOnclick() {
       // TODO Auto-generated method stub
       lv.setOnItemClickListener(new OnItemClickListener() {

           @Override
           public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
               // TODO Auto-generated method stub
               Intent intent=new Intent(getActivity(),Position1Activity.class);
                intent.putExtra("info", list.get(arg2-1));
                startActivity(intent);
           }


       });
   }

   private void initX() {
       // TODO Auto-generated method stub
       // 支持上拉刷新
       lv.setPullLoadEnable(true);
       // 支持下拉加载
       lv.setPullRefreshEnable(true);
       lv.setXListViewListener(new IXListViewListener() {

           @Override
           public void onRefresh() {
               // TODO Auto-generated method stub
               getData();
               onLoad();//设置时间
           }
           //覆写加载方法
           @Override
           public void onLoadMore() {
               // TODO Auto-generated method stub
               getDataflush();
               onLoad();//设置时间
           }

           private void onLoad() {
               lv.stopRefresh();
               lv.stopLoadMore();
               // 设置日期格式
               SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-ddHH:mm:ss");
               // 获取当前系统时间
               String nowTime = df.format(new Date(System.currentTimeMillis()));
               // 释放时提示正在刷新时的当前时间
               lv.setRefreshTime(nowTime);
           }
       });
   }


   private void stop() {
       lv.stopLoadMore();
       lv.stopRefresh();
   }
   private void getData() {
       // TODO Auto-generated method stub
       HttpUtils httpUtils = new HttpUtils();
       httpUtils.configCurrentHttpCacheExpiry(0);
       httpUtils.send(HttpMethod.GET, url, new RequestCallBack<String>() {

           @Override
           public void onFailure(HttpException arg0, String arg1) {
               // TODO Auto-generated method stub
               System.out.println("联网请求数据失败");
           }

           @Override
           public void onSuccess(ResponseInfo<String> arg0) {
               // TODO Auto-generated method stub
               String result = arg0.result;
               XStream stream = new XStream();
               stream.processAnnotations(Bean.class);
               Bean bean = (Bean) stream.fromXML(result);
               list = bean.tweets.tweet;
               getActivity().runOnUiThread(new Runnable() {

                   @Override
                   public void run() {
                       // TODO Auto-generated method stub
                       adapter = new MyBaseAdapter(getActivity(), list);
                       lv.setAdapter(adapter);
                   }
               });
           }
       });
   }
   private void getDataflush() {
       // TODO Auto-generated method stub
       index = index + 5;//分页加载
       HttpUtils utils = new HttpUtils();
       utils.send(HttpMethod.GET, url + index, new RequestCallBack<String>() {
           @Override
           public void onFailure(HttpException arg0, String arg1) {
           }

           @Override
           public void onSuccess(ResponseInfo<String> arg0) {
               // TODO Auto-generated method stub
               String result = arg0.result;
               XStream stream = new XStream();//解析数据
               stream.processAnnotations(Bean.class);
               Bean bean = (Bean) stream.fromXML(result);
               List<Tweet> tweet = bean.tweets.tweet;
               list.addAll(tweet);
               getActivity().runOnUiThread(new Runnable() {
                   public void run() {
                       adapter.notifyDataSetChanged();//通知适配器改变
                   }
               });
           }
       });
   }
   private void initView() {
       lv = (XListView) view.findViewById(R.id.lv);
   }

}