AndroidSMSFilter

代码说明：

  Android平台的短信过滤器，用广播实现，按照来电号码的前缀匹配是否需要过滤。做了前后台切换，用了ListActivity。(SMS filter for Android platform with broadcast, according to the Caller ID prefix match the need for filtering. Do Taiwan before and after the switch, with the ListActivity.)