UI相关文件：
CBMessage.
java
CBMessageItem.java
CBMessageListActivity.java
CBMessageListAdapter.java
CBMessageListItem.java
收发相关文件：
CBMessageReceiver.java
CBMessageReceiverService.java
CBMessagingNotification.java
GsmSMSDispatcher.java
Pdu解析：
GsmSmsCbMessage.java
