Android application layers log print function

Android application layers log print function

1. HAL layer

Header: #include <utils / Log.h> 

The levels of the printing method  

VERBOSE LOGV()

DEBUG LOGD()

INFORMATION LOG ()

WARN LOGW()

ERROR LOGE()

method: 

LOGD("%d, %s", int, char* )

 

2. JNI layer

Header: #include <utils / Log.h> 

The levels of the printing method  

VERBOSE LOGV()

DEBUG LOGD()

INFORMATION LOG ()

WARN LOGW()

ERROR LOGE()

method: 

LOGD("%d, %s", int, char* )

 

3. FRAMEWORK layer

import android.util.Slog;

The levels of the printing method

VERBOSE Slog.v()

DEBUG Slog.d()

INFO Slog.i ()

WARN Slog.w()

ERROR Slog.e()

method: 

Slog.d(TAG, "something to say.");

 

4. JAVA layer

import android.util.Log;

The levels of the printing method

VERBOSE Log.v()

DEBUG Log.d()

INFO Log.i()

WARN Log.w()

ERROR Log.e()

method:

Log.d(TAG, "something to say."); 

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Origin blog.csdn.net/qq_23327993/article/details/88870376