Using Android Ndk And C++

I got the sample HelloJni project working, which uses a C file for the native code. I have not been able to get any simple examples working with C++. Take the following JNI code:

Solution 1:

You might need to surround your code with an extern "C" block:

extern"C" {

    JNIEXPORT ...

}

You should be able to make a version that will work in both C and C++ by wrapping the extern block in #if:

#ifdef __cplusplusextern"C" {
#endif

JNIEXPORT ...

#ifdef __cplusplus
}
#endif

Solution 2:

Java_com_test_testActivity_doSomething will need to be extern "C".

Solution 3:

try putting extern "C" around the exported function definitions.