安卓第十天——ListView的簡單實現

main.xml

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

   
        <ListView
            android:id="@id/android:list"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
          
            />
       
   
</LinearLayout>

user.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/user_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="10pt"      
         />

    <TextView
        android:id="@+id/user_ip"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
   
        android:textSize="10pt"
         android:singleLine="true"
        />

</LinearLayout>

ListView_testActivity.java

 

package cn.class3g.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;
import android.widget.Toast;

public class ListView_testActivity extends ListActivity {

   
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        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", "張三");
        map1.put("user_ip", "192.168.65.22");
       
       
        map2.put("user_name", "李四");
        map2.put("user_ip", "192.168.65.32");
       
       
        map3.put("user_name", "王五");
        map3.put("user_ip", "192.168.65.42");
       
        list.add(map1);
        list.add(map2);
        list.add(map3);
       
       
       
        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});
       
       
        setListAdapter(adapter);
    }

 protected void onListItemClick(ListView l, View v, int position, long id) {
 
  super.onListItemClick(l, v, position, id);
  
  Toast.makeText(this, String.valueOf(position), Toast.LENGTH_SHORT).show();
 }
   
   
   
   
   
   
}