在main.xml中

<?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" >

<TextView

android:id="@+id/mych"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text=""/>

<Button

android:id="@+id/mybut"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

        android:text="请选择水果"/>

</LinearLayout>

在MyDialogDemo.java程序中

package com.tarena.dialog;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.KeyEvent;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.ImageButton;

import android.widget.TextView;

public class MyDialogDemo extends Activity {

private Button mybut = null ; // 定义按钮

private TextView mych = null ; // 定义文本

private TextView mytext = null ; // 定义文本

private String fruitData [] = new String[] { "苹果", "西瓜", "水蜜桃" };

private boolean chData[] = new boolean[]{false,false,false};

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

super.setContentView(R.layout.main); // 调用布局管理器

this.mybut = (Button) super.findViewById(R.id.mybut) ;  // 取得按钮

this.mych = (TextView) super.findViewById(R.id.mych) ;  // 取得文本

this.mybut.setOnClickListener(new OnClickListenerImpl()) ;  // 设置事件类

}

private class OnClickListenerImpl implements OnClickListener {

public void onClick(View view) {

Dialog dialog = new AlertDialog.Builder(MyDialogDemo.this)

.setIcon(R.drawable.ic_launcher)

.setTitle("请选择你喜欢吃的水果？")

.setPositiveButton("确定", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

}

})

.setNegativeButton("取消", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

}

}).setMultiChoiceItems(MyDialogDemo.this.fruitData,

MyDialogDemo.this.chData, new DialogInterface

.OnMultiChoiceClickListener() {

public void onClick(DialogInterface dialog, int which, boolean isChecked) {

for(int x = 0; x < MyDialogDemo.this.fruitData.length; x++){

if(x == which && isChecked){  //被选中

MyDialogDemo.this.mych.append(MyDialogDemo.this.fruitData[x] + "\n");

}

}

}

}).create() ;

dialog.show() ;

}

}

}