Android log control

 

 

1. C/C++ log control

#undef NDEBUG       //打开LOGV/LOGI/LOGD
#define LOG_NDEBUG   0  //打开LOGV/LOGD/LOGI

#define LOG_NDDEBUG 0 //打开LOGD/LOGI
#define LOG_NIDEBUG  0  //打开LOGI

动态控制log

include<cutils/log.h>

#define LOG_CTL "packageName.debug.enablelog"

char value[PROPERTY_VALUE_MAX];

int isDebug=0;

property_get(LOG_CTL,value, "0");

isDebug=strcmp(value,"1");

if (isDebug)

  ALOGD();

运行时开启log: 在终端输入：setprop packageName.debug.enablelog 1

运行时关闭log: 在终端输入：setprop packageName.debug.enablelog 0

 

2. Java log control

import android.util.Log

final String TAG="PackageName";

final public Boolean LOG_DEBUG = Log.isLoggable(TAG, Log.DEBUG);

 

if (LOG_DEBUG)

  Log.d(TAG,  LOG_STRING);

 

运行时开启log: 在终端输入：setprop log.tag.PackageName DEBUG

运行时关闭log: 在终端输入：setprop log.tag.PackageName INFO