首先是布局文件,這里需要兩個(gè)布局文件,一個(gè)是放置列表控件的Activity對(duì)應(yīng)的布局文件 main.xml,另一個(gè)是ListView中每一行信息顯示所對(duì)應(yīng)的布局 list_item.xml 這一步需要注意的問題是ListView 控件的id要使用Android系統(tǒng)內(nèi)置的 android:id="@android:id/list"
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="20dip"/>
</LinearLayout>

list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >

<TextView
android:id="@+id/user_name"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"/>
<TextView
android:id="@+id/user_id"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"/>
</LinearLayout>

然后就設(shè)置MainActivity中的代碼了:基本思想就是先將數(shù)據(jù)添加到ArrayList中,然后在設(shè)置SimpleAdapter適配器完成設(shè)置,入下:

package com.example.android_newlistview;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import android.os.Bundle;
import android.app.Activity;
import android.app.ListActivity;
import android.view.Menu;
import android.widget.SimpleAdapter;

public class MainActivity extends ListActivity
{

String[] from=
{"name","id"}; //這里是ListView顯示內(nèi)容每一列的列名

int[] to=
{R.id.user_name,R.id.user_id}; //這里是ListView顯示每一列對(duì)應(yīng)的list_item中控件的id


String[] userName=
{"zhangsan","lisi","wangwu","zhaoliu"}; //這里第一列所要顯示的人名

String[] userId=
{"1001","1002","1003","1004"}; //這里是人名對(duì)應(yīng)的ID

ArrayList<HashMap<String,String>> list=null;
HashMap<String,String> map=null;
@Override

protected void onCreate(Bundle savedInstanceState)
{
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main); //為MainActivity設(shè)置主布局
//創(chuàng)建ArrayList對(duì)象;
list=new ArrayList<HashMap<String,String>>();
//將數(shù)據(jù)存放進(jìn)ArrayList對(duì)象中,數(shù)據(jù)安排的結(jié)構(gòu)是,ListView的一行數(shù)據(jù)對(duì)應(yīng)一個(gè)HashMap對(duì)象,
//HashMap對(duì)象,以列名作為鍵,以該列的值作為Value,將各列信息添加進(jìn)map中,然后再把每一列對(duì)應(yīng)
//的map對(duì)象添加到ArrayList中


for(int i=0; i<4; i++)
{
map=new HashMap<String,String>(); //為避免產(chǎn)生空指針異常,有幾列就創(chuàng)建幾個(gè)map對(duì)象
map.put("id", userId[i]);
map.put("name", userName[i]);
list.add(map);
}

//創(chuàng)建一個(gè)SimpleAdapter對(duì)象
SimpleAdapter adapter=new SimpleAdapter(this,list,R.layout.list_item,from,to);
//調(diào)用ListActivity的setListAdapter方法,為ListView設(shè)置適配器
setListAdapter(adapter);
}
}另外對(duì)點(diǎn)擊某一行作出響應(yīng)的方法是覆寫onListItemClick方法,根據(jù)返回的position(從0開始):
@Override

protected void onListItemClick(ListView l, View v, int position, long id)
{
// TODO Auto-generated method stub
super.onListItemClick(l, v, position, id);
}