1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical">
 6     <TextView
 7         android:layout_width
 
="match_parent"
 8         android:layout_height="45dp"
 9         android:text="購物商城"
10         android:textSize="18sp"
11         android:textColor="#FFFFFF"
12         android:background="#FF8F03"
13         android:gravity="center"/>
14     <ListView
15         android:id="@+id/lv"
16         android:layout_width
 
="match_parent"
17         android:layout_height="wrap_content"/>
18 </LinearLayout>

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <RelativeLayout
 3     xmlns:android="http://schemas.android.com/apk/res/android"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 

 6     android:padding="16dp">
 7     <ImageView
 8         android:id="@+id/iv"
 9         android:layout_width="120dp"
10         android:layout_height="90dp"
11         android:layout_centerVertical="true"/>
12     <RelativeLayout
13         android:layout_width="wrap_content"
14         android:layout_height="wrap_content"
15         android:layout_marginLeft="10dp"
16         android:layout_toRightOf="@+id/iv"
17         android:layout_centerVertical="true">
18         <TextView
19             android:id="@+id/title"
20             android:layout_width="wrap_content"
21             android:layout_height="wrap_content"
22             android:text="桌子"
23             android:textSize="20sp"
24             android:textColor="#000000" />
25         <TextView
26             android:id="@+id/tv_price"
27             android:layout_width="wrap_content"
28             android:layout_height="wrap_content"
29             android:text="價格："
30             android:textSize="20sp"
31             android:layout_marginTop="10dp"
32             android:layout_below="@+id/title"
33             android:textColor="#FF8F03" />
34         <TextView
35             android:id="@+id/price"
36             android:layout_width="wrap_content"
37             android:layout_height="wrap_content"
38             android:text="1000"
39             android:textSize="20sp"
40             android:layout_below="@+id/title"
41             android:layout_toRightOf="@+id/tv_price"
42             android:textColor="#FF8F03"
43             android:layout_marginTop="10dp"/>
44     </RelativeLayout>
45 </RelativeLayout>

 1 package cn.itcast.listview;
 2 import android.app.Activity;
 3 import android.os.Bundle;
 4 import android.view.View;
 5 import android.view.ViewGroup;
 6 import android.widget.BaseAdapter;
 7 import android.widget.ImageView;
 8 import android.widget.ListView;
 9 import android.widget.TextView;
10 public class MainActivity extends Activity {
11     private ListView mListView;
12     //需要適配的資料
13     private String[] titles = { "桌子", "蘋果", "蛋糕", "線衣", "獼猴桃",
14             "圍巾"};
15     private String[] prices = { "1800元", "10元/kg", "300元", "350元", "10元/kg",
16             "280元"};
17     //圖片集合
18     private int[] icons = {R.drawable.table,R.drawable.apple,R.drawable.cake,
19             R.drawable.wireclothes,R.drawable.kiwifruit,R.drawable.scarf};
20     protected void onCreate(Bundle savedInstanceState) {
21         super.onCreate(savedInstanceState);
22         setContentView(R.layout.activity_main);
23         //初始化ListView控制元件
24         mListView = (ListView) findViewById(R.id.lv);
25         //建立一個Adapter的例項
26         MyBaseAdapter mAdapter = new MyBaseAdapter();
27         //設定Adapter
28         mListView.setAdapter(mAdapter);
29     }
30     //建立一個類繼承BaseAdapter
31     class MyBaseAdapter extends BaseAdapter {
32         //得到item的總數
33         @Override
34         public int getCount() {
35             //返回ListView Item條目的總數
36             return titles.length;
37         }
38         //得到Item代表的物件
39         @Override
40         public Object getItem(int position) {
41             //返回ListView Item條目代表的物件
42             return titles[position];
43         }
44         //得到Item的id
45         @Override
46         public long getItemId(int position) {
47             //返回ListView Item的id
48             return position;
49         }
50         //得到Item的View檢視
51         @Override
52         public View getView(int position, View convertView, ViewGroup parent) {
53          /*   //將list_item.xml檔案找出來並轉換成View物件
54             View view  = View.inflate(MainActivity.this,
55                     R.layout.list_item, null);
56             //找到list_item.xml中建立的TextView
57             TextView title = (TextView) view.findViewById(R.id.title);
58             TextView price = (TextView) view.findViewById(R.id.price);
59             ImageView iv = (ImageView) view.findViewById(R.id.iv);
60             title.setText(titles[position]);
61             price.setText(prices[position]);
62             iv.setBackgroundResource(icons[position]);
63             return view;*/
64             ViewHolder holder = null;
65             if(convertView == null){
66                 //將list_item.xml檔案找出來並轉換成View物件
67                 convertView  = View.inflate(MainActivity.this, R.layout.list_item, null);
68                 //找到list_item.xml中建立的TextView
69                 holder = new ViewHolder();
70                 holder.title = (TextView) convertView.findViewById(R.id.title);
71                 holder.price = (TextView) convertView.findViewById(R.id.price);
72                 holder.iv = (ImageView) convertView.findViewById(R.id.iv);
73                 convertView.setTag(holder);
74             }else{
75                 holder = (ViewHolder) convertView.getTag();
76             }
77             holder.title.setText(titles[position]);
78             holder.price.setText(prices[position]);
79             holder.iv.setBackgroundResource(icons[position]);
80             return convertView;
81 
82 
83 
84         }
85 
86     }
87     static class ViewHolder{
88         TextView title;
89         TextView price;
90         ImageView iv;
91     }
92 }