ListView的一个简单实例

ohmytime

首先是布局文件

1.main.xml

1. <?xml version="1.0" encoding="utf-8"?>
   
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   
3.     android:orientation="vertical"
   
4.     android:layout_width="fill_parent"
   
5.     android:layout_height="fill_parent"
   
6.     >
   
7.         <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   
8.      android:orientation="vertical"
   
9.      android:layout_width="fill_parent"
   
10.      android:layout_height="wrap_content"
    
11.      >
    
12.     
    
13.      <ListView
    
14.          android:id="@id/android:list"
    
15.          android:layout_width="fill_parent"
    
16.          android:layout_height="wrap_content"
    
17.          android:drawSelectorOnTop="false"
    
18.          android:scrollbars="vertical"
    
19.          />        
    
20.     </LinearLayout>
    
21. 
    
22. </LinearLayout>

然后是user.xml

1. <?xml version="1.0" encoding="utf-8"?>
   
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   
3.     android:orientation="horizontal"
   
4.     android:layout_width="fill_parent"
   
5.     android:layout_height="fill_parent"
   
6.     android:padding="10dip"
   
7.     >
   
8.     <TextView
   
9.         android:id="@+id/textUsrName"
   
10.         android:layout_width="180dip"
    
11.         android:layout_height="30dip"
    
12.         android:text="@string/usr_name"
    
13.         android:textSize="10pt"
    
14.         android:singleLine="true"
    
15.         android:gravity="left"
    
16.         
    
17.     />
    
18.     <TextView
    
19.         android:id="@+id/textUsrAddr"
    
20.         android:layout_width="fill_parent"
    
21.         android:layout_height="fill_parent"
    
22.         android:text="@string/app_addr"
    
23.         android:textSize="10pt"
    
24.         android:gravity="right"
    
25.         
    
26.     />
    
27. </LinearLayout>

string.xml中用到的一些变量

1. <?xml version="1.0" encoding="utf-8"?>
   
2. <resources>
   
3.     <string name="hello">Hello World, activity01!</STRING>
   
4.     <string name="app_name">listview</string>
   
5.     <string name="usr_name">用户名</string>
   
6.     <string name="app_addr">IP地址</string>
   
7. </resources>

2.再就是java代码

1. package listview.listview;
   
2. 
   
3. import java.util.ArrayList;
   
4. import java.util.HashMap;
   
5. 
   
6. import android.app.ListActivity;
   
7. import android.os.Bundle;
   
8. import android.view.View;
   
9. import android.widget.ListView;
   
10. import android.widget.SimpleAdapter;
    
11. import android.widget.Toast;
    
12. 
    
13. public class activity01 extends ListActivity {
    
14.     /** Called when the activity is first created. */
    
15.     @Override
    
16.     public void onCreate(Bundle savedInstanceState) {
    
17.         super.onCreate(savedInstanceState);
    
18.         setContentView(R.layout.main);
    
19.       
    
20.         ArrayList<HashMap<String,String>> list = new
    
21.         ArrayList<HashMap<String,String>>();
    
22.         //创建表
    
23. 
    
24.         HashMap<String,String> map1 = new HashMap<String,String>();
    
25.         HashMap<String,String> map2 = new HashMap<String,String>();
    
26.         HashMap<String,String> map3 = new HashMap<String,String>();
    
27.         //初始化表数据
    
28. 
    
29.         map1.put("textUsrName", "小白兔");
    
30.         map1.put("textUsrAddr", "79.3.5.6");
    
31.         map2.put("textUsrName", "小黑");
    
32.         map2.put("textUsrAddr", "39.3.5.5");
    
33.         map3.put("textUsrName", "小红兔子");
    
34.         map3.put("textUsrAddr", "16.3.7.6");
    
35.         //将表添加进list
    
36. 
    
37.         list.add(map1);
    
38.         list.add(map2);
    
39.         list.add(map3);
    
40.         //新建容器adapter
    
41. 
    
42.         SimpleAdapter listAdapter = new SimpleAdapter(this,list,R.layout.user,
    
43.                 new String[]{"textUsrName","textUsrAddr"},new
    
44.                 int []{R.id.textUsrName,R.id.textUsrAddr});
    
45.         setListAdapter(listAdapter);
    
46.         
    
47.         
    
48.     }
    
49.     
    
50.     
    
51.     @Override
    
52.     protected void onListItemClick(ListView l, View v, int position, long id) {
    
53.         // TODO Auto-generated method stub
    
54. 
    
55.         super.onListItemClick(l, v, position, id);
    
56.         System.out.println("id--------------"+(id+1));
    
57.         System.out.println("position--------------"+position);
    
58.         Toast.makeText(getApplicationContext(),
    
59.                 "你点击了第"+(id+1)+"个单位",
    
60.                 Toast.LENGTH_SHORT).show();
    
61.     }
    
62.         
    
63. }