Question

I have an Android project with a Java base Activity, Java JNI interface class, and native code. I have the proper

System.loadlibrary(_libraryname_);

In my Java interface class and from the logcat output:

11-29 15:11:20.737: D/dalvikvm(8940): No JNI_OnLoad found in /data/data/com.example.testjni/lib/libTestJNI.so 0x406ef030, skipping init

In my cpp file header:

extern "C" {
   JNIEXPORT jint JNICALL JNIOnLoad(JavaVM *, void *);
}

In the cpp file:

JNIEXPORT jint JNICALL JNIOnLoad(JavaVM *vm, void *reserved)
{
   LOGI("JNIOnLoad");
   jvm = vm;
   return JNI_VERSION_1_6; /* the required JNI version */
}

But still the OnLoad function never is called. I’ve tried uninstalling the app and re-installing it but it never runs.

Answer 1

Function signature is JNI_OnLoad. There is an underscore / _ between JNI and OnLoad.