Android中用兩層AlertDialog來進行彈出選擇框信息選擇

          1：我們現在xml文件中定義一個要顯示內容列表數組

          2：在Activity中使用 String[] items = getResources().getStringArray(R.array.item);

          3：增添點擊事件，使用Alertdialog.builder  千萬不能忘了最後進行show()哦  

          直接看截圖的效果:

       源代碼:

       [java]

1. package com.jiangqq.alertdialog;  
2.   
3. import android.app.Activity;  
4. import android.app.AlertDialog;  
5. import android.content.DialogInterface;  
6. import android.os.Bundle;  
7. import android.view.View;  
8. import android.view.View.OnClickListener;  
9. import android.widget.Button;  
10.   
11. /** 
12.  * 使用AlertDialog進行選擇功能 
13.  *  
14.  * @author jiangqq 
15.  *  
16.  */  
17. public class AlertDialogActivity extends Activity {  
18.     private Button btn;  
19.   
20.     @Override  
21.     public void onCreate(Bundle savedInstanceState) {  
22.         super.onCreate(savedInstanceState);  
23.         setContentView(R.layout.main);  
24.   
25.         btn = (Button) findViewById(R.id.btn);  
26.         btn.setOnClickListener(new OnClickListener() {  
27.   
28.             public void onClick(View v) {  
29.                 final String[] items = getResources().getStringArray(  
30.                         R.array.item);  
31.                 new AlertDialog.Builder(AlertDialogActivity.this)  
32.                         .setTitle("請點擊選擇")  
33.                         .setItems(items, new DialogInterface.OnClickListener() {  
34.   
35.                             public void onClick(DialogInterface dialog,  
36.                                     int which) {  
37.                                 new AlertDialog.Builder(  
38.                                         AlertDialogActivity.this)  
39.                                         .setTitle("你選擇了:" + items[which])  
40.                                         .setMessage("點擊選擇操作")  
41.                                         .setPositiveButton(  
42.                                                 "確定",  
43.                                                 new DialogInterface.OnClickListener() {  
44.   
45.                                                     public void onClick(  
46.                                                             DialogInterface dialog,  
47.                                                             int which) {  
48.                                                         // 這裡是你點擊確定之後可以進行的操作   
49.                                                     }  
50.                                                 })  
51.                                         .setNegativeButton(  
52.                                                 "取消",  
53.                                                 new DialogInterface.OnClickListener() {  
54.   
55.                                                     public void onClick(  
56.                                                             DialogInterface dialog,  
57.                                                             int which) {  
58.                                                         // 這裡點擊取消之後可以進行的操作   
59.                                                     }  
60.                                                 }).show();  
61.                             }  
62.                         }).show();  
63.             }  
64.         });  
65.     }  
66. }  

       string.xml文件內容:

     [html]

1. <?xml version="1.0" encoding="utf-8"?>  
2. <resources>  
3.   
4.     <string name="hello">Hello World, AlertDialogActivity!</string>  
5.     <string name="app_name">Hello World, AlertDialogActivity</string>  
6.     <string name="btn_name">點擊彈出AlertDialog</string>  
7.   
8.     <string-array name="item">  
9.         <item>第一個選擇</item>  
10.         <item>第二個選擇</item>  
11.         <item>第三個選擇</item>  
12.         <item>第四個選擇</item>  
13.     </string-array>  
14.   
15. </resources>