String.xml文件的代碼如下：

1 <resources>
2     <string name="app_name">普通對話框案例</string>
3     <string name="btn">顯示普通對話框</string>
4     <string name="title">普通對話框</string>
5     <string name="ok">確定</string>
6     <string name="dialog_msg">這是普通對話框中的內容！！！</string>
7
 
 </resources>

activity_common_dialog代碼如下：

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout
 3     xmlns:android="http://schemas.android.com/apk/res/android"
 4     android:orientation="vertical"
 5     android:layout_width="fill_parent"
 6     android:layout_height="fill_parent">
 7
 
 
 8     <EditText
 9         android:text=""
10         android:id="@+id/EidtText01"
11         android:cursorVisible="false"
12         android:layout_width="fill_parent"
13         android:layout_height="wrap_content" />
14 
15     <Button
16         android:id="@+id/Button01"
17         android:text="
 
@string/btn"
18         android:layout_width="fill_parent"
19         android:layout_height="wrap_content" />
20 
21 </LinearLayout>

java文件代碼如下：

 1 package com.example.sample_6_3;
 2 
 3 import android.app.Dialog;
 4 import android.content.DialogInterface;
 5 import android.support.v7.app.AlertDialog;
 6 import android.support.v7.app.AppCompatActivity;
 7 import android.os.Bundle;
 8 import android.view.View;
 9 import android.widget.Button;
10 import android.widget.EditText;
11 
12 public class CommonDialogActivity extends AppCompatActivity {
13     final int COMMON_DIALOG = 1;
14     @Override
15     protected void onCreate(Bundle savedInstanceState) {
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.activity_common_dialog);
18         Button btn = (Button) findViewById(R.id.Button01);
19         btn.setOnClickListener(new View.OnClickListener() {
20             @Override
21             public void onClick(View v) {
22                 showDialog(COMMON_DIALOG);          //顯示普通對話框
23             }
24         });
25     }
26     protected Dialog onCreateDialog(int id) {
27         Dialog dialog = null;          //聲明一個dialog對象用於返回
28         switch (id) {                //對id進行判斷
29             case COMMON_DIALOG:
30                 AlertDialog.Builder b = new AlertDialog.Builder(this);
31                 b.setIcon(R.drawable.dialog);                   //設置對話框圖標
32                 b.setTitle(R.string.title);                    //設置對話框標題
33                 b.setMessage(R.string.dialog_msg);           //設置對話框顯示內容
34                 b.setPositiveButton(
35                         R.string.ok,
36                         new DialogInterface.OnClickListener() {
37                             @Override
38                             public void onClick(DialogInterface dialog, int which) {
39                                 EditText et = (EditText) findViewById(R.id.EidtText01);
40                                 et.setText(R.string.dialog_msg);        //設置EditText內容
41                             }
42                         });
43                 dialog = b.create();              //生成dialog對象
44                 break;
45             default:
46                 break;
47         }
48         return dialog;                  //返回生產dialog的對象
49     }
50 }

效果如下圖：

Android:普通對話框Dialog