SimpleAdapter的使用

 1 package org.hjw.simpleadaptertest;
 2 
 3 import java.util.ArrayList;
 4 import java.util.HashMap;
 5 import java.util.List;
 6 import java.util.Map;
 7 
 8 import android.os.Bundle;
 9 import android.app.Activity;
10 import android.app.AlertDialog;
11 import android.view.Menu;
12 import android.view.View;
13 import android.view.View.OnClickListener;
14 import android.widget.AdapterView;
15 import android.widget.AdapterView.OnItemClickListener;
16 import android.widget.ListView;
17 import android.widget.SimpleAdapter;
18 
19 public class MainActivity extends Activity {
20 
21     private String[] names = { "虎头", "弄玉", "李清照", "李白" };
22     private String[] descs = { "可爱的小孩", "一个很擅长音乐的女孩", "一个很擅长文学的新女性", "浪漫主义诗人" };
23     private int[] imageIds = new int[] { R.drawable.tiger, R.drawable.nongyu,
24             R.drawable.qingzhao, R.drawable.libai };
25     private ListView list;
26     @Override
27     protected void onCreate(Bundle savedInstanceState) {
28         super.onCreate(savedInstanceState);
29         setContentView(R.layout.activity_main);
30 
31         List<Map<String, Object>> listItems = new ArrayList<Map<String, Object>>();
32         for (int i = 0; i < names.length; i++) {
33             Map<String, Object> item = new HashMap<String, Object>();
34             item.put("header", imageIds[i]);
35             item.put("personname", names[i]);
36             item.put("desc", descs[i]);
37             listItems.add(item);
38         }
39 
40         SimpleAdapter simpleAdapter = new SimpleAdapter(this, listItems,
41                 R.layout.frag, new String[] { "header", "personname", "desc" },
42                 new int[] { R.id.header, R.id.name, R.id.desc });
43          list=(ListView)findViewById(R.id.mylist);
44         list.setAdapter(simpleAdapter);
45         list.setOnItemClickListener(new OnItemClickListener() {
46 
47             @Override
48             public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
49                     long arg3) {
50                     new AlertDialog.Builder(MainActivity.this).setMessage("您选中的是:"+names[arg2]).show();
51             }
52         });
53     }
54     
55     @Override
56     public boolean onCreateOptionsMenu(Menu menu) {
57         // Inflate the menu; this adds items to the action bar if it is present.
58         getMenuInflater().inflate(R.menu.main, menu);
59         return true;
60     }
61 
62 }

ps:1.simpleadapter的初始化。

      第一个为上下文，第二个为列表项，第三个为界面布局文件的资源ID，第四个为列表项的Key，第五个为填充的组件.

     2. 列表项资源文件的布局。