ItemManager

代码说明：

  某些情况下，设备的存储区中只能存储16进制数据。此事将汉字存储到该存储区，以及从该存储区取出16进制数据之后，如何显出成汉字，有点麻烦。本代码解决了这个问题。本代码在安卓4.0环境下测试成功。(In some cases, the storage area of the device can store data in hexadecimal. After this the characters stored in the storage area, as well as remove the hex data the storage area, showing how to form characters, a little trouble. This code solves this problem. The code is tested successfully at Andrews 4.0 environment.)