菜鳥 學序號產生器編寫之 Android app

  1 package com.eoeAndroid.HelloWorld;
  2 //download by http://www.codefans.net
  3 import android.app.Activity;
  4 import android.content.Context;
  5 import android.os.Bundle;
  6 import android.view.View;
  7 import android.widget.TextView;
  8 import android.widget.Toast;
  9 import android.provider.Settings;
 10 import android.widget.Button;
 11 import android.text.ClipboardManager;
 12 
 13 
 14 
 15 public class ActivityMain extends Activity {
 16     /** Called when the activity is first created. */
 17     
 18     private Button button1; 
 19     public void onCreate(Bundle savedInstanceState) {
 20         super.onCreate(savedInstanceState);
 21         setContentView(R.layout.main);
 22         TextView tv = new TextView(this);
 23         String seriaNumber;
 24         
 25         super.onCreate(savedInstanceState);  
 26         setContentView(R.layout.main);   
 27         
 28         //獲得機器碼
 29         String str = Settings.System.getString(ActivityMain.this.getContentResolver(), "android_id");
 30         
 31         EncryptionAlgorithm localEncryptionAlgorithm = new EncryptionAlgorithm();
 32      
 33         //將機器碼計算MD5
 34         str = localEncryptionAlgorithm.MD5(str);
 35         
 36         str += "yida1234";
 37         
 38         //計算註冊碼
 39         seriaNumber = localEncryptionAlgorithm.MD5(str);
 40 
 41         tv.setText("註冊碼: "+seriaNumber);
 42         setContentView(tv);
 43 
 44         localEncryptionAlgorithm.copy(seriaNumber, getBaseContext());
 45         Toast.makeText(ActivityMain.this, "註冊碼已複製到剪貼簿", 0).show();
 46         Toast.makeText(ActivityMain.this, "註冊碼已複製到剪貼簿", 0).show();
 47         Toast.makeText(ActivityMain.this, "註冊碼已複製到剪貼簿", 0).show();
 48         
 49         //--按鈕事件
 50      
 51     }
 52 }
 53 
 54 package com.eoeAndroid.HelloWorld;
 55 
 56 import java.io.UnsupportedEncodingException;
 57 import java.security.InvalidKeyException;
 58 import java.security.MessageDigest;
 59 import java.security.NoSuchAlgorithmException;
 60 import java.security.SecureRandom;
 61 
 62 import javax.crypto.BadPaddingException;
 63 import javax.crypto.Cipher;
 64 import javax.crypto.IllegalBlockSizeException;
 65 import javax.crypto.KeyGenerator;
 66 import javax.crypto.NoSuchPaddingException;
 67 import javax.crypto.spec.SecretKeySpec;
 68 
 69 import android.content.Context;
 70 import android.text.ClipboardManager;
 71 
 72 public class EncryptionAlgorithm {
 73     
 74      public final String PASSWORD = "yida1234";
 75       
 76      
 77         public static void copy(String content, Context context)  
 78         {  
 79         // 得到剪貼簿管理器   
 80             ClipboardManager cmb = (ClipboardManager)context.getSystemService(Context.CLIPBOARD_SERVICE);  
 81             cmb.setText(content.trim());  
 82         } 
 83      
 84       private String parseByte2HexStr(byte[] paramArrayOfByte)
 85       {
 86         StringBuffer localStringBuffer = new StringBuffer();
 87         for (int i = 0; i < paramArrayOfByte.length; i++)
 88         {
 89           String str = Integer.toHexString(0xFF & paramArrayOfByte[i]);
 90           if (str.length() == 1) {
 91             str = '0' + str;
 92           }
 93           localStringBuffer.append(str.toUpperCase());
 94         }
 95         return localStringBuffer.toString();
 96       }
 97       
 98       public String AES(String paramString)
 99       {
100         try
101         {
102           KeyGenerator localKeyGenerator = KeyGenerator.getInstance("AES");
103           localKeyGenerator.init(128, new SecureRandom("yida1234".getBytes()));
104           SecretKeySpec localSecretKeySpec = new SecretKeySpec(localKeyGenerator.generateKey().getEncoded(), "AES");
105           Cipher localCipher = Cipher.getInstance("AES");
106           byte[] arrayOfByte = paramString.getBytes("utf-8");
107           localCipher.init(1, localSecretKeySpec);
108           String str = parseByte2HexStr(localCipher.doFinal(arrayOfByte));
109           return str;
110         }
111         catch (NoSuchAlgorithmException localNoSuchAlgorithmException)
112         {
113           localNoSuchAlgorithmException.printStackTrace();
114           return null;
115         }
116         catch (NoSuchPaddingException localNoSuchPaddingException)
117         {
118           for (;;)
119           {
120             localNoSuchPaddingException.printStackTrace();
121           }
122         }
123         catch (InvalidKeyException localInvalidKeyException)
124         {
125           for (;;)
126           {
127             localInvalidKeyException.printStackTrace();
128           }
129         }
130         catch (UnsupportedEncodingException localUnsupportedEncodingException)
131         {
132           for (;;)
133           {
134             localUnsupportedEncodingException.printStackTrace();
135           }
136         }
137         catch (IllegalBlockSizeException localIllegalBlockSizeException)
138         {
139           for (;;)
140           {
141             localIllegalBlockSizeException.printStackTrace();
142           }
143         }
144         catch (BadPaddingException localBadPaddingException)
145         {
146           for (;;)
147           {
148             localBadPaddingException.printStackTrace();
149           }
150         }
151       }
152       
153       public String MD5(String paramString)
154       {
155         try
156         {
157           MessageDigest localMessageDigest = MessageDigest.getInstance("MD5");
158           localMessageDigest.update(paramString.getBytes());
159           byte[] arrayOfByte = localMessageDigest.digest();
160           StringBuffer localStringBuffer = new StringBuffer("");
161           for (int i = 0; i < arrayOfByte.length; i++)
162           {
163             int j = arrayOfByte[i];
164             if (j < 0) {
165               j += 256;
166             }
167             if (j < 16) {
168               localStringBuffer.append("0");
169             }
170             localStringBuffer.append(Integer.toHexString(j));
171           }
172           String str = localStringBuffer.toString().substring(8, 24);
173           return str;
174         }
175         catch (NoSuchAlgorithmException localNoSuchAlgorithmException)
176         {
177           localNoSuchAlgorithmException.printStackTrace();
178         }
179         return "";
180       }
181 
182 
183 }