###1. 采取Service进行录音操作. ###2. 监听手机的状态来判断是否有来电. ###3. 接收系统发出的拨打电话的广播来启动录音. ###4. 录音文件存储在SDCard根目录. ###5. 如果有任何问题，Please Issues Me.
###1. The Service was taken to the recording operation. ###2. To monitor the state of the mobile phone to determine whether there is a call. ###3. The receiving system to make calls from radio to start recording. ###4. The recording files are stored in SDCard root directory. ###5. If you have any questions, both Please Issues Me.