新XListView连接网络请求数据

来源：互联网发布：淘宝怎么找不到高仿表编辑：程序博客网时间：2024/05/19 00:40

再点击事件中打开侧栏drawerLayout.openDrawer(侧栏的视图);
关闭侧栏 dl.closeDrawer(lv);

XListView在OnCreate中配置完所有东西,之后再进行AsyncTask请求数据,刷新适配器.
XListView代码:

public class MainActivity extends Activity implements XListView.IXListViewListener{    ListView lv;    XListView xlv;    List<Zong.ResultBean.RowsBean> arr = new ArrayList<Zong.ResultBean.RowsBean>();    Handler hd;    String s = "http://api.fang.anjuke.com/m/android/1.3/shouye/recInfosV3/?city_id=14&lat=40.04652&lng=116.306033&api_key=androidkey&sig=9317e9634b5fbc16078ab07abb6661c5&macid=45cd2478331b184ff0e15f29aaa89e3e&app=a-ajk&_pid=11738&o=PE-TL10-user+4.4.2+HuaweiPE-TL10+CHNC00B260+ota-rel-keys%2Crelease-keys&from=mobile&m=Android-PE-TL10&cv=9.5.1&cid=14&i=864601026706713&v=4.4.2&pm=b61&uuid=1848c59c-185d-48d9-b0e9-782016041109&_chat_id=0&qtime=20160411091603";    MyAdpt ad;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        lv = (ListView) findViewById(R.id.listview_show);        xlv = (XListView) findViewById(R.id.xlistview);        xlv.setPullLoadEnable(true);        ad = new MyAdpt();        xlv.setAdapter(ad);        xlv.setXListViewListener(this);        hd = new Handler();        Init();    }    private void Init() {        new MyAstncTask().execute(s);    }    class MyAstncTask extends AsyncTask<String,Void,String>{        @Override        protected void onPreExecute() {            super.onPreExecute();        }        @Override        protected void onPostExecute(String s) {            super.onPostExecute(s);            Gson gson = new Gson();            Zong zong = gson.fromJson(s, Zong.class);            List<Zong.ResultBean.RowsBean> rows = zong.getResult().getRows();            arr.addAll(rows);            ad.notifyDataSetChanged();        }        @Override        protected void onProgressUpdate(Void... values) {            super.onProgressUpdate(values);        }        @Override        protected String doInBackground(String... strings) {            try {                URL url = new URL(strings[0]);                HttpURLConnection huc = (HttpURLConnection) url.openConnection();                if(huc.getResponseCode()==200){                    InputStream inputStream = huc.getInputStream();                    BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));                    StringBuilder sb = new StringBuilder();                    String s = "";                    while((s = br.readLine())!=null){                        sb.append(s);                    }                    String s1 = sb.toString();                    return s1;                }            } catch (Exception e) {                e.printStackTrace();            }            return null;        }    }    public void onLoad(){        xlv.stopRefresh();        xlv.stopLoadMore();        xlv.setRefreshTime("刚刚");    }    @Override    public void onRefresh() {        hd.postDelayed(new Runnable() {            @Override            public void run() {                arr.clear();                Init();                onLoad();            }        },2000);    }    @Override    public void onLoadMore() {        hd.postDelayed(new Runnable() {            @Override            public void run() {                Init();                onLoad();            }        },2000);    }    @Override    public boolean onKeyDown(int keyCode, KeyEvent event) {        if(keyCode==KeyEvent.KEYCODE_BACK&&event.getRepeatCount()==0){            this.finish();        }        return false;    }    class MyAdpt extends BaseAdapter{        @Override        public int getCount() {            return arr.size();        }        @Override        public Object getItem(int i) {            return arr.get(i);        }        @Override        public long getItemId(int i) {            return i;        }        @Override        public View getView(int i, View view, ViewGroup viewGroup) {            Adpt ad;            Zong.ResultBean.RowsBean.InfoBean info = arr.get(i).getInfo();            if(view==null){                view = View.inflate(MainActivity.this,R.layout.xlistview_shitu,null);                ad = new Adpt();                ad.img = view.findViewById(R.id.xlistview_img);                ad.tv = view.findViewById(R.id.xlistview_tv);                view.setTag(ad);            }else{                ad = (Adpt) view.getTag();            }            ad.tv.setText(info.getLoupan_name());            ImageLoader.getInstance().displayImage(info.getDefault_image(),ad.img);            return view;        }        class Adpt{            ImageView img;            TextView tv;        }    }}

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