traceview使用

参考博文：http://hubingforever.blog.163.com/blog/static/17104057920112825035143/

关于Traceview文件格式请参考：

http://developer.android.com/guide/developing/debugging/debugging-tracing.html

本文参照来源:

http://wbdban.javaeye.com/blog/564309

http://developer.android.com/guide/developing/debugging/debugging-tracing.html

http://developer.android.com/guide/developing/debugging/ddms.html#profiling