大叔的第四天 @HTTP请求,JSON,LISTVIEW
做了一个页面,同时用到了这三种不会的知识,写到这里。Map还要理解一下。
public class SingleActivity extends Activity{ private ListView listView; private ArrayList<HashMap<String,String>> list = new ArrayList<HashMap<String,String>>(); SimpleAdapter adapter = null ; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.maintenance_single); listView = (ListView)findViewById(R.id.maintenance_single_list); List<NameValuePair> params = new ArrayList<NameValuePair>(); //这里是网络请求的附加信息 BasicNameValuePair pair1 = new BasicNameValuePair("UserAgent", Constands.UserAgent);//附加信息 params.add(pair1); BasicNameValuePair pair2 = new BasicNameValuePair("Token", "34430000003165727730");//附加信息 params.add(pair2); new HttpConnection().post("get_item", params,new HttpConnection.CallbackListener() { @Override public void callBack(String result) { Log.v("post了",result); if(result!="fail"){ try { //JASON解析 JSONObject object = new JSONObject(result); JSONArray content = object.getJSONArray("Content"); int cc = content.length(); for(int i=0;i<cc;i++){ JSONObject objMap = content.getJSONObject(i); HashMap<String,String> map = new HashMap<String,String>(); map.put("code",objMap.getString("code")); map.put("name",objMap.getString("name")); list.add(map); Log.v("Content01",map.get("code")); Log.v("Content01",map.get("name")); } Log.v("TEST LIST",list.get(0).get("name")); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } adapter = new SimpleAdapter( SingleActivity.this, list, R.layout.sositemrow, new String[]{"name"}, new int[]{R.id.itemtitle}); listView.setAdapter(SingleActivity.this.adapter); }else{ } } }); } }