android ListActivity学习

布局代码：

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    > 
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello" 
    /> 

<LinearLayout 
android:id="@+id/listLinearLayout" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:orientation="vertical" 
> 
<ListView 
android:id="@id/android:list" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:drawSelectorOnTop="false" 
android:scrollbars="vertical" 
/> 
</LinearLayout> 
</LinearLayout> 

 
Activity代码： 

 

package zhou.demo; 

import java.util.ArrayList; 
import java.util.HashMap; 

import android.app.ListActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ListView; 
import android.widget.SimpleAdapter; 

public class ListAcvityDemo extends ListActivity { 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.main); 
        
        //进行数据的添加 
        
        ArrayList<HashMap<String,String>> list = new ArrayList<HashMap<String,String>>(); 
        HashMap<String,String> map1 = new HashMap<String,String>(); 
        HashMap<String,String> map2 = new HashMap<String,String>(); 
        HashMap<String,String> map3 = new HashMap<String,String>(); 
        map1.put("user_name", "周周"); 
        map1.put("user_ip", "192.168.1.1"); 
        map2.put("user_name", "郭佳"); 
        map2.put("user_ip", "192.168.1.2"); 
        map3.put("user_name", "张立飞"); 
        map3.put("user_ip", "192.168.1.3"); 
        list.add(map1); 
        list.add(map2); 
        list.add(map3); //SimpleAdapter(这是一个简单的适配器可以将静态数据映射到XML文件中定义好的视图)
        SimpleAdapter listAdapter = new SimpleAdapter(this,list, R.layout.user, 
        new String[]{"user_name","user_ip"}, 
        new int[]{R.id.user_name,R.id.user_ip}); 
        setListAdapter(listAdapter); 
   } 

@Override 
protected void onListItemClick(ListView l, View v, int position, long id) { 
// TODO Auto-generated method stub 
super.onListItemClick(l, v, position, id); 
System.out.println("id--------------" + id); 
System.out.println("position--------------" + position); 
} 
    
    
}