ListView 控件的使用

ListView 这个控件使用相对较麻烦，使用两个xml和一个Activity

 

 

main.xml

 

    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" > 
      
                      android:layout_width="fill_parent"   
                  android:layout_height="wrap_content" 
                  android:orientation="vertical">      
         
        
                          android:layout_width="fill_parent"    
                  android:layout_height="wrap_content"  
                  android:drawSelectorOnTop="false"      
                  android:scrollbars="vertical"/>        
 

user.xml

 

    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:paddingLeft="10dip"
    android:paddingRight="10dip"
    android:paddingTop="1dip"
    android:paddingBottom="1dip"
    >
 android:id="@+id/user_name"
    android:layout_width="170dip"
    android:layout_height="30dip"
    android:text="@string/hello"
    android:textSize="10pt"
    android:singleLine="true"
    />
 android:id="@+id/user_ip"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textSize="10pt"
    android:gravity="right"
    />

activity

 

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 ListViewTest extends ListActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        //创建List
        ArrayList> list = new ArrayList>();
        //创建Map
        HashMap map1 =new HashMap();
        HashMap map2 =new HashMap();
        HashMap map3 =new HashMap();
        //map当中添加值
        map1.put("user_name", "zhangsan");
        map1.put("user_ip", "192.168.0.1");
        map2.put("user_name", "lisi");
        map2.put("user_ip", "192.168.0.21");
        map3.put("user_name", "wangwu");
        map3.put("user_ip", "192.168.0.9");
        //将map添加到List
        list.add(map1);
        list.add(map2);
        list.add(map3);
        //生成一个SimpleAdapter类型的变量来填充数据
        SimpleAdapter adapter =new SimpleAdapter(this,list,R.layout.user, new String[]{"user_name","user_ip"},new int[]{R.id.user_name,R.id.user_ip});
        //设置显示ListView
        setListAdapter(adapter);
    }

 @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(position);
  System.out.println(id);
 }
   
}