Android控件之AlertDialog-單選、多選信息列表彈出框

1、AlertDialog的信息列表、單選、多選對話框簡介

上一遍簡單介紹了一個信息提示框，下面一次介紹信息列表對話框、單選對話框、多選對話框，具體效果如下

2、xml佈局文件

佈局文件只是幾個按鈕，並且爲其綁定了點擊事件，點擊按鈕後彈出對話框

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >
    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignRight="@+id/button1"
        android:layout_below="@+id/button1"
        android:onClick="showListAlertDialog"
        android:text="信息列表框" />
    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/button2"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/button2"
        android:onClick="showSingleAlertDialog"
        android:text="單選列表" />
    <Button
        android:id="@+id/button4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/button3"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/button3"
        android:onClick="showMutilAler<span style="font-family: Arial, Helvetica, sans-serif;">tDialog"</span>
        android:text="多選按鈕" />

</RelativeLayout>

3、java代碼

package com.example.alertdialog;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	// 信息列表提示框
	private AlertDialog alertDialog1;
	public void showListAlertDialog(View view){
		final String[] items = {"Struts2","Spring","Hibernate","Mybatis","Spring MVC"};
		AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);
		alertBuilder.setTitle("java EE 常用框架");
		alertBuilder.setItems(items, new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface arg0, int index) {
				Toast.makeText(MainActivity.this, items[index], Toast.LENGTH_SHORT).show();
				alertDialog1.dismiss();
			}
		});
		alertDialog1 = alertBuilder.create();
		alertDialog1.show();
	}
	
	// 單選提示框
	private AlertDialog alertDialog2;
	public void showSingleAlertDialog(View view){
		final String[] items = {"Struts2","Spring","Hibernate","Mybatis","Spring MVC"};
		AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);
		alertBuilder.setTitle("java EE 常用框架");
		alertBuilder.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface arg0, int index) {
				Toast.makeText(MainActivity.this, items[index], Toast.LENGTH_SHORT).show();
			}
		});
		alertBuilder.setPositiveButton("確定", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface arg0, int arg1) {
				//TODO 業務邏輯代碼
				
				// 關閉提示框
				alertDialog2.dismiss();
			}
		});
		alertBuilder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface arg0, int arg1) {
				// TODO 業務邏輯代碼
				
				// 關閉提示框
				alertDialog2.dismiss();
			}
		});
		alertDialog2 = alertBuilder.create();
		alertDialog2.show();
	}
	
	// 多選提示框
	private AlertDialog alertDialog3;
	public void showMutilAlertDialog(View view){
		final String[] items = {"Struts2","Spring","Hibernate","Mybatis","Spring MVC"};
		
		// 創建一個AlertDialog建造者
		AlertDialog.Builder alertDialogBuilder= new AlertDialog.Builder(this);
		// 設置標題
		alertDialogBuilder.setTitle("java EE 常用框架");
		// 參數介紹
		// 第一個參數：彈出框的信息集合，一般爲字符串集合
		// 第二個參數：被默認選中的，一個布爾類型的數組
		// 第三個參數：勾選事件監聽
		alertDialogBuilder.setMultiChoiceItems(items, null, new DialogInterface.OnMultiChoiceClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which, boolean isChecked) {
				// dialog：不常使用，彈出框接口
				// which：勾選或取消的是第幾個
				// isChecked：是否勾選
				if (isChecked) {
					// 選中
					Toast.makeText(MainActivity.this, "選中"+items[which], Toast.LENGTH_SHORT).show();
				}else {
					// 取消選中
					Toast.makeText(MainActivity.this, "取消選中"+items[which], Toast.LENGTH_SHORT).show();
				}
				
			}
		});
		alertDialogBuilder.setPositiveButton("確定", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface arg0, int arg1) {
				//TODO 業務邏輯代碼
				
				// 關閉提示框
				alertDialog3.dismiss();
			}
		});
		alertDialogBuilder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface arg0, int arg1) {
				// TODO 業務邏輯代碼
				
				// 關閉提示框
				alertDialog3.dismiss();
			}
		});
		alertDialog3 = alertDialogBuilder.create();
		alertDialog3.show();
	}
	
}