Android中AlertDiaolg的使用

string.xml文件

<?xml version="1.0" encoding="utf-8"?>

<resources>

<string name="tip">您好，这是我的第一个警示对话框！</string>

<string name="delete">删除</string>

<string name="app_name">AlertDialogActivity</string>

<string name="menu">这是一份菜单</string>

<string name="order">点餐</string>

</resources>

main.xml文件

<?xml version="1.0" encoding="utf-8"?>

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

android:orientation="vertical" android:layout_width="fill_parent"

android:layout_height="fill_parent">

<TextView android:id="@+id/tipTextField" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:text="@string/tip" />

<Button android:id="@+id/deleteButton" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:text="@string/delete" />

</LinearLayout>

package com.baoxin.dialog;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.AlertDialog.Builder;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

/**

 * 警告对话框

 * 

 * @author shyboy([e-mail])

 * 

 */

public class ContextMenuAlertDialog extends Activity {

private TextView menuTextView;// 声明TextView视图对象

private Button orderButton;// 声明Button按钮对象

String[] items = { "奥尔良鸡腿堡", "麻辣鸡腿堡", "咖啡" };// 设置对话框选项数组

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

this.setContentView(R.layout.menu);// 设置当前Activity的布局界面

menuTextView = (TextView) findViewById(R.id.menuTextView);// 获取TextView视图对象

orderButton = (Button) findViewById(R.id.orderButton);// 获取Button按钮对象

final Builder builder = new Builder(this);// 实例化Builder对象

/**

* 为按钮添加单击监听器

*/

orderButton.setOnClickListener(new OnClickListener() {

public void onClick(View arg0) {

builder.setTitle("请点餐").setItems(items,

new DialogInterface.OnClickListener() {// 设置标题和选项

public void onClick(DialogInterface arg0, int arg1) {

menuTextView.setText(items[arg1]);// 设置视图文本为选中的内容

}

});

AlertDialog alertDialog = builder.create();// 创建对话框

alertDialog.show();// 显示对话框

}

});

}

}