由网友(21．淡淡的悲伤)分享简介：一个android的模块（AudioFlinger）中有详细的日志记录（与标签= AudioFlinger）的支持。问题是，我怎么能看到这些日志中的logcat的？ One of the android Modules (AudioFlinger) has support for verbose logging (w...

一个android的模块（AudioFlinger）中有详细的日志记录（与标签= AudioFlinger）的支持。问题是，我怎么能看到这些日志中的logcat的？

One of the android Modules (AudioFlinger) has support for verbose logging (with Tag=AudioFlinger). Question is how can I see those logs in the logcat?

我做了setprop log.tag.AudioFlinger详细 - 但它似乎并没有工作。我需要改变一些东西，然后再重建Android源？

I did the setprop log.tag.AudioFlinger VERBOSE - but it doesn't seem to work. Do I need to change something and then rebuild the android source again?

推荐答案

在logcat的文档并不能真正帮助。但更多的挖我能找到答案，因为我期待的详细日志记录默认情况下关闭在编译的时候。

The logcat documentation doesn't really help. But with more digging I was able to find the answer, as I was expecting the VERBOSE logging is by default OFF at compile time.

纵观cutils / log.h有助于找到了答案：http://www.netmite.com/android/mydroid/system/core/include/cutils/log.h

Looking at the cutils/log.h helps to find the answer: http://www.netmite.com/android/mydroid/system/core/include/cutils/log.h

/*
 * Normally we strip LOGV (VERBOSE messages) from release builds.
 * You can modify this (for example with "#define LOG_NDEBUG 0"
 * at the top of your source file) to change that behavior.
 */

所以要启用详细任何源文件/模块：我们必须定义为LOG_NDEBUG 0

So to enable VERBOSE for any source file/module : We have to define LOG_NDEBUG as 0