'How to print log in android c++ file?

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?

android logging

Solution 1:^[1]

You can check frameworks/av/media/libstagefright/Android.mk, whether there is

 LOCAL_SHARED_LIBRARIES += liblog

in it.

Then, under frameworks/av/media/libstagefright/

$ mm

$ adb push $OUT/system/lib/libstagefright.so /system/lib/ 

$ adb shell killall mediaserver

Then reboot your phone or am start a MEDIA_MOUNTED intent, MediaScanner will work, and the logs you just added(either ALOGE/ALOGV or LOGE/LOGV) should be shown.

Solution 2:^[2]

No you have done right. Just check it whether you are using ALOGV() which is similar to printf(),if you want to print a integer with a log then you can write like this :" ALOGV("Integer is %d",integer);".

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	Usman Kurd
Solution 2	Tarun Chawla

'How to print log in android c++ file?

Solution 1:[1]

Solution 2:[2]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]