How to print log in android c++ file?

Question

I added

#define LOG_NDEBUG 0
#define LOG_TAG "StagefrightMediaScanner"
#include <utils/Log.h>

in the libstagefright/StagefrightMediaScanner.cpp

but can not print anything using LOGV and LOGE, does any other things can I need to do?

Answer 1

You can use the following code to get Log

  __android_log_print(ANDROID_LOG_ERROR, "TRACKERS", "%s", Str);

and add the following header file

#include <android/log.h>