ListView的建立，一般要具備兩大元素：
1）資料集，即要映射的字元串、圖檔資訊之類。
2）擴充卡，實作把要映射的字元串、圖檔資訊映射成視圖（如Textview、Image等元件），再添加到ListView中。
下面是一個實操例子：
實作細節：
1、建立資料集，一般定義如下
private List<Map<String, Object>> listItems;
元素添加方式：
Map<String, Object> map = new HashMap<String, Object>();
map.put("image", imgeIDs[i]); //圖檔資源
map.put("title", "物品名稱："); //物品标題
map.put("info", goodsNames[i]); //物品名稱
map.put("detail", goodsDetails[i]); //物品詳情
listItems.add(map); //添加一項
2、建立擴充卡
public class ListViewAdapter extends BaseAdapter{........} //自定義的擴充卡一般繼承BaseAdapter類
listViewAdapter = new ListViewAdapter(this, listItems);
3、給ListView設定擴充卡
listView.setAdapter(listViewAdapter);
4、這裡還有個關鍵點，如何把list_item.xml布局作為一個視圖，添加到listView中：
LayoutInflater listContainer; //視圖容器工廠
listContainer = LayoutInflater.from(context); //建立視圖容器工廠并設定上下文
convertView = listContainer.inflate(R.layout.list_item, null); //建立list_item.xml布局檔案的視圖
執行個體視圖如下：
1）布局檔案main.xml
<a href="http://blog.csdn.net/kkfdsa132/archive/2011/04/16/6327482.aspx"> </a>
<?xml version="1.0" encoding="utf-8"?>
<!-- 結算 -->
</LinearLayout>
<!-- 商品清單 -->
</LinearLayout>
清單項布局檔案list_item.xml
<!-- 商品圖檔 -->
<!-- 商品資訊 -->
<!-- 購買和商品詳情 -->
2)代碼，主代碼：
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class MyListView extends Activity {
private ListView listView;
private ImageButton imgbt_sum;
private ListViewAdapter listViewAdapter;
private List<Map<String, Object>> listItems;
private Integer[] imgeIDs = {R.drawable.cake,
R.drawable.gift, R.drawable.letter,
R.drawable.love, R.drawable.mouse,
R.drawable.music};
private String[] goodsNames = {"蛋糕", "禮物",
"郵票", "愛心", "滑鼠", "音樂CD"};
private String[] goodsDetails = {
"蛋糕：好好吃。",
"禮物：禮輕情重。",
"郵票：環遊世界。",
"愛心：世界都有愛。",
"滑鼠：反應靈活。",
"音樂CD：酷我音樂。"};
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
listView = (ListView)findViewById(R.id.list_goods);
imgbt_sum = (ImageButton) findViewById(R.id.imgbt_sum);
imgbt_sum.setOnClickListener(new ClickEvent());
listItems = getListItems();
listViewAdapter = new ListViewAdapter(this, listItems); //建立擴充卡
listView.setAdapter(listViewAdapter);
}
/**
* 初始化商品資訊
*/
private List<Map<String, Object>> getListItems() {
List<Map<String, Object>> listItems = new ArrayList<Map<String, Object>>();
for(int i = 0; i < goodsNames.length; i++) {
Map<String, Object> map = new HashMap<String, Object>();
map.put("image", imgeIDs[i]); //圖檔資源
map.put("title", "物品名稱："); //物品标題
map.put("info", goodsNames[i]); //物品名稱
map.put("detail", goodsDetails[i]); //物品詳情
listItems.add(map);
}
return listItems;
class ClickEvent implements OnClickListener{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String goodsList = "";
for(int i = 0; i < listItems.size(); i++) {
goodsList += listViewAdapter.hasChecked(i)? goodsNames[i] + " ": "";
}
new AlertDialog.Builder(MyListView.this)
.setTitle("購物清單：")
.setMessage("你好，你選擇了如下商品：\n" + goodsList)
.setPositiveButton("确定", null)
.show();
}
}
擴充卡代碼：
import java.util.List;
public class ListViewAdapter extends BaseAdapter {
private Context context; //運作上下文
private List<Map<String, Object>> listItems; //商品資訊集合
private LayoutInflater listContainer; //視圖容器
private boolean[] hasChecked; //記錄商品選中狀态
public final class ListItemView{ //自定義控件集合
public ImageView image;
public TextView title;
public TextView info;
public CheckBox check;
public Button detail;
}
public ListViewAdapter(Context context, List<Map<String, Object>> listItems) {
this.context = context;
listContainer = LayoutInflater.from(context); //建立視圖容器并設定上下文
this.listItems = listItems;
hasChecked = new boolean[getCount()];
public int getCount() {
// TODO Auto-generated method stub
return listItems.size();
public Object getItem(int arg0) {
return null;
public long getItemId(int arg0) {
return 0;
* 記錄勾選了哪個物品
* @param checkedID 選中的物品序号
private void checkedChange(int checkedID) {
hasChecked[checkedID] = !hasChecked[checkedID];
* 判斷物品是否選擇
* @param checkedID 物品序号
* @return 傳回是否選中狀态
public boolean hasChecked(int checkedID) {
return hasChecked[checkedID];
* 顯示物品詳情
* @param clickID
private void showDetailInfo(int clickID) {
new AlertDialog.Builder(context)
.setTitle("物品詳情：" + listItems.get(clickID).get("info"))
.setMessage(listItems.get(clickID).get("detail").toString())
.setPositiveButton("确定", null)
.show();
* ListView Item設定
public View getView(int position, View convertView, ViewGroup parent) {
Log.e("method", "getView");
final int selectID = position;
//自定義視圖
ListItemView listItemView = null;
if (convertView == null) {
listItemView = new ListItemView();
//擷取list_item布局檔案的視圖
convertView = listContainer.inflate(R.layout.list_item, null);
//擷取控件對象
listItemView.image = (ImageView)convertView.findViewById(R.id.imageItem);
listItemView.title = (TextView)convertView.findViewById(R.id.titleItem);
listItemView.info = (TextView)convertView.findViewById(R.id.infoItem);
listItemView.detail= (Button)convertView.findViewById(R.id.detailItem);
listItemView.check = (CheckBox)convertView.findViewById(R.id.checkItem);
//設定控件集到convertView
convertView.setTag(listItemView);
}else {
listItemView = (ListItemView)convertView.getTag();
// Log.e("image", (String) listItems.get(position).get("title")); //測試
// Log.e("image", (String) listItems.get(position).get("info"));
//設定文字和圖檔
listItemView.image.setBackgroundResource((Integer) listItems.get(
position).get("image"));
listItemView.title.setText((String) listItems.get(position)
.get("title"));
listItemView.info.setText((String) listItems.get(position).get("info"));
listItemView.detail.setText("商品詳情");
//注冊按鈕點選時間愛你
listItemView.detail.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//顯示物品詳情
showDetailInfo(selectID);
});
// 注冊多選框狀态事件處理
listItemView.check
.setOnCheckedChangeListener(new CheckBox.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
//記錄物品選中狀态
checkedChange(selectID);
}
return convertView;
}
至于，如何實作系統自帶的擴充卡，如ArrayAdapter、SimpleAdapter和SimpleCursorAdapter等，有機會再補充。