ListView编写 博客分类： android androidlistView

布局文件layout中：

一个是Activity的主布局文件：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" >
	<LinearLayout 
	android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
	    >
    <ListView 
        android:id="@android:id/list"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        ></ListView>
    </LinearLayout>
</LinearLayout>

 

一个是对应数据的布局文件：user.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" >
    
    <TextView 
        android:id="@+id/user_name"
        android:layout_width="wrap_content"
        android:layout_height="30dp"
        android:ems="15"
        />
    <TextView 
        android:id="@+id/user_ip"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        />
</LinearLayout>

 

Activity 继承 LlistActivity 类 ， 重写 onCreate,onListItemClick 方法

 

package com.example.listview;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.HashMap;

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

public class Activity03 extends ListActivity {
	
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_activity03);
        
        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", "zhangsan");
        map1.put("user_ip", "192.168.1.1");
        map2.put("user_name", "lisi");
        map2.put("user_ip", "192.168.1.2");
        map3.put("user_name", "wangwu");
        map3.put("user_ip", "192.168.1.3");
        
        list.add(map1);
        list.add(map2);
        list.add(map3);
        
        SimpleAdapter simple = new SimpleAdapter(this, list, R.layout.user, new String[]{"user_name","user_ip"}, 
        		new int[]{R.id.user_name,R.id.user_ip});
        
        setListAdapter(simple);
    }

    
    
    @Override
	protected void onListItemClick(ListView l, View v, int position, long id) {
		// TODO Auto-generated method stub
		super.onListItemClick(l, v, position, id);
		if(id==0){
			Toast.makeText(this, "zhangsan", Toast.LENGTH_SHORT).show();
		}
		else if(id ==1){
			Toast.makeText(this, "lisi", Toast.LENGTH_SHORT).show();
		}
		else{
			Toast.makeText(this, "wangwu", Toast.LENGTH_SHORT).show();
		}
	}



	@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_activity03, menu);
        return true;
    }
}