編輯：關於android開發
今天碰到一個一個會話失效的問題，從網上找了個方法可以處理http://blog.csdn.net/aa7704/article/details/50611588#comments
還有list的下拉刷新和上拉加載的完成程序的例子
如下是代碼
先看下登錄保存定義保存的Cookie
package com.examle.hello.util;
import com.lidroid.xutils.util.PreferencesCookieStore;
import android.app.Application;
public class MyApplication extends Application {
/**
* 用PreferencesVookisStore持久化cookie到本地
*/
public static PreferencesCookieStore presCookieStore;
public static String jsesionid = "";// 保存sessionid
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
presCookieStore = new PreferencesCookieStore(getApplicationContext());
}
}
下面是PullToRefreshListView的使用 代碼在適配器 getview的方法重復調用了多次我沒有想到處理的方法
package com.examle.hello.text;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.examle.hello.adapter.ReceiveListAdapter;
import com.examle.hello.util.MyApplication;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener2;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import com.lidroid.xutils.HttpUtils;
import com.lidroid.xutils.exception.HttpException;
import com.lidroid.xutils.http.RequestParams;
import com.lidroid.xutils.http.ResponseInfo;
import com.lidroid.xutils.http.callback.RequestCallBack;
import com.lidroid.xutils.http.client.HttpRequest.HttpMethod;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
/**
* 短信接收的界面
* @author zh
*
*/
public class MainReceiveFragment extends Fragment {
private PullToRefreshListView listView;
private ReceiveListAdapter adpter;
private int j ;
private List<JSONObject> dataList = new ArrayList<JSONObject>();
private String urlString = "http://111.39.245.157:9527/cmppbs/getCmpp30DeliverList.action";
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.receivefragment, null, false);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
initView();
}
private void initView() {
// TODO Auto-generated method stub
listView =(PullToRefreshListView) getActivity().findViewById(R.id.expand_list);
listView.setMode(Mode.BOTH);
setHttp();
OnRefreshListener2<ListView> mListener2 = new OnRefreshListener2<ListView>() {
@Override
public void onPullDownToRefresh(
PullToRefreshBase<ListView> refreshView) {
// TODO Auto-generated method stub
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
String date = simpleDateFormat.format(new Date());
refreshView.getLoadingLayoutProxy().setLastUpdatedLabel(date);
new UpFresh().execute();
}
@Override
public void onPullUpToRefresh(
PullToRefreshBase<ListView> refreshView) {
// TODO Auto-generated method stub
new MyTask().execute();
}
};
listView.setOnRefreshListener(mListener2);
j=2;
}
/**
* 進行網絡的請求默認加載第一頁
*/
private void setHttp(){
HttpUtils httpUtils = new HttpUtils();
RequestParams requestParams = new RequestParams();
httpUtils.configCurrentHttpCacheExpiry(100);
httpUtils.configCookieStore(MyApplication.presCookieStore);
requestParams.addBodyParameter("page", "1");
requestParams.addBodyParameter("rows", "3");
requestParams.addBodyParameter("order", "desc");
httpUtils.send(HttpMethod.POST, urlString, requestParams, new RequestCallBack<String>() {
@Override
public void onFailure(HttpException arg0, String arg1) {
// TODO Auto-generated method stub
}
@Override
public void onSuccess(ResponseInfo<String> arg0) {
// TODO Auto-generated method stub
Log.d("jiejie", arg0.result);
if(arg0.result !=null){
try {
JSONObject object=new JSONObject(arg0.result);
JSONArray array = object.getJSONArray("rows");
for (int i = 0; i < array.length(); i++) {
JSONObject dataJsonObject =array.getJSONObject(i);
dataList.add(dataJsonObject);
}
ListView listView2 = listView.getRefreshableView();
adpter = new ReceiveListAdapter(getActivity(),dataList);
listView2.setAdapter(adpter);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
}
/**
* 上拉加載
* @author zh
*
*/
class MyTask extends AsyncTask<Void, Void, String[]>{
@Override
protected String[] doInBackground(Void... arg0) {
// TODO Auto-generated method stub
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String[] result) {
// TODO Auto-generated method stub
RequestParams requestParams = new RequestParams();
requestParams.addBodyParameter("page", j+"");
requestParams.addBodyParameter("rows", "3");
requestParams.addBodyParameter("order", "desc");
HttpUtils httpUtils = new HttpUtils();
httpUtils.configCurrentHttpCacheExpiry(100);
httpUtils.configCookieStore(MyApplication.presCookieStore);
httpUtils.send(HttpMethod.POST, urlString, requestParams, new RequestCallBack<String>() {
@Override
public void onFailure(HttpException arg0, String arg1) {
// TODO Auto-generated method stub
}
@Override
public void onSuccess(ResponseInfo<String> arg0) {
// TODO Auto-generated method stub
Log.d("jiejie", arg0.result);
if(arg0.result!=null){
try {
JSONObject object=new JSONObject(arg0.result);
JSONArray list=object.getJSONArray("rows");
JSONObject data;
for (int i = 0; i < list.length(); i++) {
data = list.getJSONObject(i);
dataList.add(data);
/*Toast.makeText(getActivity(), dataList.get(0).toString(), Toast.LENGTH_LONG).show();*/
}
adpter.notifyDataSetChanged();
listView.onRefreshComplete();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
super.onPostExecute(result);
j++;
}
}
class UpFresh extends AsyncTask<Void, Void, String[]>{
@Override
protected String[] doInBackground(Void... arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
protected void onPostExecute(String[] result) {
// TODO Auto-generated method stub
String url3="http://111.39.245.157:9527/cmppbs/getCmpp30DeliverList.action";
RequestParams requestParams = new RequestParams();
requestParams.addBodyParameter("page", "1");
requestParams.addBodyParameter("rows", "3");
requestParams.addBodyParameter("order", "desc");
HttpUtils httpUtilss = new HttpUtils();
httpUtilss.configCurrentHttpCacheExpiry(100);
httpUtilss.configCookieStore(MyApplication.presCookieStore);
httpUtilss.send(HttpMethod.POST, url3, requestParams, new RequestCallBack<String>() {
@Override
public void onFailure(HttpException arg0, String arg1) {
// TODO Auto-generated method stub
}
@Override
public void onSuccess(ResponseInfo<String> arg0) {
// TODO Auto-generated method stub
dataList.clear();
if(arg0.result !=null){
try {
JSONObject object = new JSONObject(arg0.result);
JSONArray list = object.getJSONArray("rows");
JSONObject data;
for(int i =0;i<list.length();i++){
data = list.getJSONObject(i);
dataList.add(data);
}
adpter.notifyDataSetChanged();
listView.onRefreshComplete();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
super.onPostExecute(result);
}
}
}
package com.examle.hello.adapter;
import java.util.List;
import org.json.JSONException;
import org.json.JSONObject;
import com.examle.hello.text.R;
import android.content.Context;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
/**
* 短信接收的適配器
* @author zh
*
*/
public class ReceiveListAdapter extends BaseAdapter {
private Context context;
private List<JSONObject> dataList;
public ReceiveListAdapter(Context context, List<JSONObject> dataList) {
this.context = context;
this.dataList = dataList;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return dataList.size();
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
// TODO Auto-generated method stub
ViewHolder holder = null;
if(arg1 == null){
holder = new ViewHolder();
arg1 = View.inflate(context, R.layout.notereceive, null);
holder.tv_item_r_yewu=(TextView)arg1.findViewById(R.id.item_r_yewu);
holder.tv_item_r_phone=(TextView)arg1.findViewById(R.id.item_r_phone);
holder.tv_item_r_content=(TextView)arg1.findViewById(R.id.item_r_content);
holder.tv_item_r_time=(TextView)arg1.findViewById(R.id.item_r_time);
arg1.setTag(holder);
}else {
holder = (ViewHolder) arg1.getTag();
}
try {
Log.d("jiejie", "數據"+dataList);
holder.tv_item_r_content.setText(dataList.get(arg0).getString("msgContent"));
holder.tv_item_r_phone.setText(dataList.get(arg0).getString("srcTerminalId"));
holder.tv_item_r_time.setText(dataList.get(arg0).getString("moDate"));
holder.tv_item_r_yewu.setText(dataList.get(arg0).getString("tpPid"));
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return arg1;
}
static class ViewHolder{
TextView tv_item_r_yewu;
TextView tv_item_r_phone;
TextView tv_item_r_content;
TextView tv_item_r_time;
}
}
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