有关android输入系统的源码分析，分析源码并总结整个框架-About the android source input system analysis, source code analysis and summarizes the entire framework

freeswitch源码分析，包括基本框架的分析，目录结构的介绍，各模块的额分析，典型呼叫场景数据流的分析等-freeswitch source analysis, including an analysis of the basic framework, the introduction of the directory structure, the amount of each module analysis, data flow analysis of typical scenarios