F1

public class Fragment01 extends Fragment {    private XListView xlv;   private List<Bean.DataBean>  data=new ArrayList<Bean.DataBean>();    private String requestUrl;    private Adapter adapter;    String type="";    private int pageIndex=1;    private int operaType=1;    private Handler handler=new Handler(){        @Override        public void handleMessage(Message msg) {            if(operaType==1){                xlv.stopRefresh();                //设置            }else{                xlv.stopLoadMore();            }        }    };    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {       View view=inflater.inflate(R.layout.framgent,container,false);        xlv = (XListView) view.findViewById(R.id.xlv);        Bundle bundle = getArguments();        type = bundle.getString("key");        requestUrl="http://api.expoon.com/AppNews/getNewsList/type/"+type+"/p/"+pageIndex;        return view;    }    @Override    public void onActivityCreated(@Nullable Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);        xlv.setPullLoadEnable(true  );        xlv.setPullRefreshEnable(true);        xlv.setXListViewListener(new XListView.IXListViewListener() {            @Override            public void onRefresh() {                pageIndex=1;                operaType=1;                new myTask().execute(requestUrl);            }            @Override            public void onLoadMore() {                pageIndex++;                operaType=2;                new myTask().execute(requestUrl);            }        });        new myTask().execute(requestUrl);        Log.d("zzz",requestUrl);    }    class myTask extends AsyncTask<String, Void, String> {        @Override        protected String doInBackground(String... params) {            try {                URL url = new URL(params[0]);                HttpURLConnection connection = (HttpURLConnection) url.openConnection();                connection.setRequestMethod("GET");                connection.setReadTimeout(30000);                connection.setReadTimeout(30000);                int code = connection.getResponseCode();                if (code == 200) {                    InputStream inputStream = connection.getInputStream();                    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();                    int len = 0;                    byte[] buffer = new byte[1024];                    while ((len = inputStream.read(buffer)) != -1) {                        outputStream.write(buffer, 0, len);                    }                    outputStream.close();                    inputStream.close();                    String s = outputStream.toString();                    return s;                }            } catch (Exception e) {                e.printStackTrace();            }            return null;        }        @Override        protected void onPostExecute(String s) {            super.onPostExecute(s);            Log.d("zzz","s:"+s);            Gson gson = new Gson();            Bean bean = gson.fromJson(s, Bean.class);           if(operaType==1){                //如果是刷新操作                data.clear();           }            Log.d("xxx",bean.getInfo()+"    ");            data.addAll(bean.getData());            //设置适配器            setAdapter();            //关闭头部与尾部布局            handler.sendEmptyMessageDelayed(0,1000);        }    }    /**     * 设备适配器     */    private void setAdapter() {        if (adapter == null) {            adapter = new Adapter(getActivity(),data);            xlv.setAdapter(adapter);        } else {            adapter.notifyDataSetChanged();        }    }}