Android-ndk:jni Debug printout in local file

Add header file # include <android/log.h> function __android_log_print (android_log_info,log_tag,title) First parameter Android_log_ INFO (and Android_log_error, etc.), what type of output, the above function is equivalent to Android Java code LOG.I (Log_tag,title), the second parameter is Logcat TAG, the third is printed content. Please go to log.h to see for yourself in detail. You can call # include <android/log.h> #define  log_tag    "Libibmphotophun"   //definition Logcat tag tag # #  Logi (...)  __android_log_print (android_log_info,log_tag,__va_args__)//log (). I#define  LOGE (...)  __android_log_print (android_log_error,log_tag,__va_args__)//log (). E is called when Logi ("Test TAG");

Android-ndk:jni Debug printout in local file