android 怎么取list数据

按以下代码可获取到list数据：

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package com.example.sdtg.sdsw;

import java.io.IOException;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.ksoap2.SoapEnvelope;

import org.ksoap2.SoapFault;

import org.ksoap2.serialization.SoapObject;

import org.ksoap2.serialization.SoapSerializationEnvelope;

import org.ksoap2.transport.HttpTransportSE;

import org.xmlpull.v1.XmlPullParserException;

import android.os.AsyncTask;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.Button;

import android.widget.ListView;

import android.widget.SimpleAdapter;

import android.widget.TextView;

import android.widget.Toast;

public class ListActivity extends Activity {

// 命名空间

// String nameSpace = "";

// 调用的方法名称

// String methodName = "GetSjSearch";

// EndPoint

// String endPoint = "";

// SOAP Action

// String soapAction = "";

// ListMapString, Object mList;

ListView ListV;

HashMapString, Object map = new HashMapString, Object();

private ListMapString,String listItems;

SimpleAdapter mListAdapter;

String name="";

String addr="";

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_list);

listItems = new ArrayListMapString,String();

ListV=(ListView)findViewById(R.id.ListView01);

Handler indicate = new Handler();

//获取主页面传的值

final Intent data = getIntent();

name=data.getStringExtra("Name");

addr=data.getStringExtra("Addr");

new NetAsyncTask().execute();

ListV.setOnItemClickListener(new OnItemClickListener(){

@Override

public void onItemClick(AdapterView? arg0, View arg1, int arg2,

long arg3) {

//获得选中项的HashMap对象

TextView viewtmc = (TextView) arg1.findViewById(R.id.textListmc);

TextView viewdz = (TextView) arg1.findViewById(R.id.textlistdz);

TextView viewid = (TextView) arg1.findViewById(R.id.textlistid);

//String playerChanged = c.getText().toString();

Bundle bundle = new Bundle();

bundle.putString("Name", viewtmc.getText().toString());

bundle.putString("Addr", viewdz.getText().toString());

bundle.putString("ID", viewid.getText().toString());

final Intent data = getIntent();

data.putExtras(bundle);

//跳转回MainActivity

//注意下面的RESULT_OK常量要与回传接收的Activity中onActivityResult（）方法一致

ListActivity.this.setResult(RESULT_OK, data);

//关闭当前activity

ListActivity.this.finish();

}

});

};

class NetAsyncTask extends AsyncTaskObject, Object, String {

@Override

protected void onPostExecute(String result) {

if (result.equals("success")) {

mListAdapter = null;

mListAdapter = new SimpleAdapter(ListActivity.this, listItems, R.layout.item,new String[]{"title", "info", "img"}, new int[]{R.id.textListmc, R.id.textlistdz, R.id.textlistid});

ListV.setAdapter(mListAdapter);

}

super.onPostExecute(result);

}

@Override

protected String doInBackground(Object... params) {

// 命名空间

String nameSpace = "";

// 调用的方法名称

String methodName = "GetSjSearch";

// EndPoint

String endPoint = "";

// SOAP Action

String soapAction = "";

// 指定WebService的命名空间和调用的方法名

SoapObject rpc = new SoapObject(nameSpace, methodName);

// 设置需调用WebService接口需要传入的两个参数mobileCode、userId

rpc.addProperty("name", name);

rpc.addProperty("address", addr);

// 生成调用WebService方法的SOAP请求信息,并指定SOAP的版本

SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(

SoapEnvelope.VER11);

// SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER12);

envelope.bodyOut = rpc;

// 设置是否调用的是dotNet开发的WebService

envelope.dotNet = true;

// 等价于envelope.bodyOut = rpc;

envelope.setOutputSoapObject(rpc);

HttpTransportSE transport = new HttpTransportSE(endPoint);

try {

// 调用WebService

transport.call(soapAction, envelope);

} catch (Exception e) {

e.printStackTrace();

}

SoapObject object;

// 开始调用远程方法

try {

object = (SoapObject) envelope.getResponse();

int count = object.getPropertyCount();

// 得到服务器传回的数据

int count1 = object.getPropertyCount();

if(count10)

{

for (int i = 0; i count1; i++) {

MapString,String listItem = new HashMapString, String();

SoapObject soapProvince = (SoapObject)object.getProperty(i);

listItem.put("title", soapProvince.getProperty("DJXX_NSRMC").toString());

listItem.put("info", soapProvince.getProperty("DJXX_ZCDJ").toString());

//listItem.put("img", soapProvince.getProperty("DJXX_NSRSBH").toString());

listItems.add(listItem);

}}

} catch (IOException e) {

e.printStackTrace();

//return "IOException";

}

return "success";

}

}

}

android怎么取出list里面特定的数据

只需要循环一下，判断即可。

示例代码：

1.遍历整个list集合

for(int i=0; ilist.size(); i++){

}

2.在for循环中增加判断代码

if(list.get(i).equals("指定")）｛｝

3.得到每一个item进行判断即可。

android怎么传一个list集合

方法1： 直接让User类继承Serializable或者Parcelable接口即可，Intent只可以传输序列化的对象pre t="code" l="java"//User类

public class User implements Serializable{

private String name;

.

}

//直接加入intent

ListUser list = new ArrayListUser();

Intent intent = new Intent();

intent.putExtra("list",list);

方法2： 把list集合转为字符串表示，可以使用json格式，直接用Gson框架转换即可，再到另一个activity转换回来pre t="code" l="java"ListUser list = new ArrayListUser();

Type type = new TypeTokenArrayListUser()(){}.getType();

String json = new Gson().toJson(list,type);

intent.putExtra("list",json);

//转换回ListUser

String json = getIntent.getStringExtra("list");

Type type = new TypeTokenArrayListUser()(){}.getType();

ListUser list = new Gson().fromJson(json,type);

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