ooieueioo的部落格

How to show message on jni code

1. on Android.mk add

./frameworks/base/services/jni/Android.mk(順序重要)

include $(CLEAR_VARS)
LOCAL_LDLIBS:=-llog
#LOCAL_LDLIBS:= -L$(SYSROOT)/usr/lib -llog

2. on .cpp add

#define LOG_TAG "BatteryService"
#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG ,__VA_ARGS__)

LOGD("test");

3. mm jni code

4. via adb view message

adb logcat BatteryService *:s

if not show message, can check Android.mk(順序)

參考http://hi.baidu.com/mcu99/item/b8dc91da94576e12d90e4490