运行截图：

Java代码：

package com.mrzhu.test0109;

import android.app.Activity;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.Button;

import android.widget.ImageView;

import android.widget.ListView;

import android.widget.TextView;

public class Main extends Activity {

private String[] arr_name = {"王一", "王二", "王三", "王四"};

private String[] arr_phone = {"12345", "12345", "12345", "12345"};

//用于存储图片id

private int[] arr_image = {R.drawable.img1, R.drawable.img2, R.drawable.img3, R.drawable.img4};

//声明一个ListView对象

private ListView list;

//声明一个自定义的适配器对象

private MyListApadter myAdapter;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

list = (ListView) findViewById(R.id.list);

//实例化一个适配器对象并将其与list绑定

myAdapter = new MyListApadter();

list.setAdapter(myAdapter);

}

//自定义适配器类

private class MyListApadter extends BaseAdapter{

@Override

public int getCount() {

return arr_name.length;

}

@Override

public Object getItem(int position) {

return null;

}

@Override

public long getItemId(int position) {

return 0;

}

@Override

public View getView(int position, View convertView, ViewGroup parent) {

//取得一个转换器

LayoutInflater layoutIf = getLayoutInflater();

//将xml转换为View对象

View listItem = layoutIf.inflate(R.layout.mylistitem, null);

//从listItem中取出控件

TextView name = (TextView) listItem.findViewById(R.id.name);

TextView phone = (TextView) listItem.findViewById(R.id.phone);

ImageView headImage = (ImageView) listItem.findViewById(R.id.headImage);

//   从数组中取出值做相应的设置

name.setText(arr_name[position]);

phone.setText(arr_phone[position]);

headImage.setImageResource(arr_image[position]);

//为按钮设置监听器，点击按钮则弹出对话框

Button btn_download = (Button) listItem.findViewById(R.id.download);

btn_download.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

//抽取出来放在一个类中

MyDialog.dialog(Main.this);

}

});

//返回View对象

return listItem;

}

}

}

Dialog类：

package com.mrzhu.test0109;

import android.app.AlertDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.content.DialogInterface.OnClickListener;

import android.util.Log;

import android.widget.Toast;

public class MyDialog {

public static void dialog(final Context context){

//实例化一个对话框对象

AlertDialog.Builder dialog = new AlertDialog.Builder(context);

//设置标题和内容

dialog.setTitle(R.string.download);

dialog.setMessage(R.string.isDownload);

//设置按钮

dialog.setPositiveButton(R.string.yes, new OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Toast.makeText(context, R.string.backDownload, Toast.LENGTH_SHORT).show();

Log.i("System.out", "onclick--->>>>");

}

});

dialog.setNegativeButton(R.string.cancle, new OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

}

});

dialog.show();

}

}

main.xml代码：

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

android:id="@+id/list"

android:layout_width="match_parent"

android:layout_height="match_parent" />

自定义的item条目：

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:descendantFocusability="blocksDescendants"

android:orientation="horizontal">

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:id="@+id/headImage"

/>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:orientation="vertical"

>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textSize="20px"

android:id="@+id/name"

/>

android:layout_width="200px"

android:layout_height="wrap_content"

android:textSize="20px"

android:id="@+id/phone"

/>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/download"

andr