7 simpleAdapter的原理和使用

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布局和listView布局文件。

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context=".MainActivity" >    <ListView        android:id="@+id/lv"         android:layout_width="fill_parent"        android:layout_height="fill_parent"        ></ListView>    </LinearLayout>

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent" >            <TextView         android:id="@+id/name"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:text="名字"        />    <TextView android:id="@+id/phone"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentRight="true"android:text="电话"                /></RelativeLayout>

使用SimpleAdapter进行数据展现

package org.sicn.lee.contentvaluedemo;import java.util.ArrayList;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import org.sicn.lee.dao.PersonDAO;import org.sicn.lee.domain.Person;import android.app.Activity;import android.os.Bundle;import android.widget.ListView;import android.widget.SimpleAdapter;public class MainActivity extends Activity {private ListView lv;private PersonDAO dao;private List<Person> list;private List<Map<String,String>> listMap;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);super.setContentView(R.layout.activity_main);this.lv=(ListView) super.findViewById(R.id.lv);dao=new PersonDAO(this);list=dao.findAll("person", null, null, null, null, null, null);listMap=new ArrayList<Map<String,String>>();Map<String,String> map=new HashMap<String,String>();Iterator<Person> iter=list.iterator();while(iter.hasNext()){Person person=iter.next();map.put("name", person.getName());map.put("phone",person.getPhone());listMap.add(map);}this.lv.setAdapter(new SimpleAdapter(this, listMap,R.layout.person_item,new String[]{"name","phone"},new int[]{R.id.name,R.id.phone}));}}

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