android 中图片资源的加密

如果你现在正需要对图片资源进行加密，以保证普通的看图工具无法查看到这些图片，只有在你的程序中解密才能看到图片，以保护图片信息，你可以下载这个Demo作为参考。

/** Automatically generated file. DO NOT MODIFY */
package com.example.pictureencrypt;

public final class BuildConfig {
    public final static boolean DEBUG = true;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2012-08-14 16:38  PictureEncrypt\
     文件         364  2012-08-14 14:30  PictureEncrypt\.classpath
     文件         850  2012-08-14 14:29  PictureEncrypt\.project
     文件        1077  2012-08-14 16:13  PictureEncrypt\AndroidManifest.xml
     目录           0  2012-08-14 14:29  PictureEncrypt\assets\
     目录           0  2012-08-14 16:38  PictureEncrypt\bin\
     文件        1077  2012-08-14 16:13  PictureEncrypt\bin\AndroidManifest.xml
     目录           0  2012-08-14 16:38  PictureEncrypt\bin\classes\
     文件      322692  2012-08-14 16:33  PictureEncrypt\bin\classes.dex
     目录           0  2012-08-14 16:38  PictureEncrypt\bin\classes\com\
     目录           0  2012-08-14 16:38  PictureEncrypt\bin\classes\com\example\
     目录           0  2012-08-14 16:38  PictureEncrypt\bin\classes\com\example\pictureencrypt\
     文件         361  2012-08-14 16:04  PictureEncrypt\bin\classes\com\example\pictureencrypt\BuildConfig.class
     文件        1684  2012-08-14 16:38  PictureEncrypt\bin\classes\com\example\pictureencrypt\PictureEncryptActivity$1.class
     文件        1634  2012-08-14 16:38  PictureEncrypt\bin\classes\com\example\pictureencrypt\PictureEncryptActivity$2.class
     文件        3658  2012-08-14 16:38  PictureEncrypt\bin\classes\com\example\pictureencrypt\PictureEncryptActivity.class
     文件         364  2012-08-14 16:13  PictureEncrypt\bin\classes\com\example\pictureencrypt\R$attr.class
     文件         499  2012-08-14 16:13  PictureEncrypt\bin\classes\com\example\pictureencrypt\R$dimen.class
     文件         471  2012-08-14 16:13  PictureEncrypt\bin\classes\com\example\pictureencrypt\R$drawable.class
     文件         477  2012-08-14 16:13  PictureEncrypt\bin\classes\com\example\pictureencrypt\R$id.class
     文件         438  2012-08-14 16:13  PictureEncrypt\bin\classes\com\example\pictureencrypt\R$layout.class
     文件         432  2012-08-14 16:13  PictureEncrypt\bin\classes\com\example\pictureencrypt\R$menu.class
     文件         610  2012-08-14 16:13  PictureEncrypt\bin\classes\com\example\pictureencrypt\R$string.class
     文件         419  2012-08-14 16:13  PictureEncrypt\bin\classes\com\example\pictureencrypt\R$style.class
     文件         753  2012-08-14 16:13  PictureEncrypt\bin\classes\com\example\pictureencrypt\R.class
     文件         119  2012-08-14 16:04  PictureEncrypt\bin\jarlist.cache
     文件      156952  2012-08-14 16:33  PictureEncrypt\bin\PictureEncrypt.apk
     目录           0  2012-08-14 16:38  PictureEncrypt\bin\res\
     文件       20670  2012-08-14 16:13  PictureEncrypt\bin\resources.ap_
     目录           0  2012-08-14 16:38  PictureEncrypt\bin\res\drawable-hdpi\
     文件         409  2012-08-14 15:58  PictureEncrypt\bin\res\drawable-hdpi\ic_action_search.png
............此处省略47个文件信息