Android NDK中的JNI语法

Question

Quick question about the JNI syntax in Android NDK

This is my function name in c++ code

JNIEXPORT void JNICALL Java_ogs_test_ogskcg_ogstranspose(JNIEnv * env, jobject obj)

And my log cat error msg

09-10 01:08:38.476: WARN/dalvikvm(278): No implementation found for native Logs/test/ogskcg;.ogstranspose ()V

Can you let me know is it the name prefix problem or something else

Answer 1

JNIEXPORT void JNICALL Java_ogs_test_ogskcg_ogstranspose(JNIEnv * env, jobject obj)

不应该（您错过了L）：

JNIEXPORT void JNICALL Java_Logs_test_ogskcg_ogstranspose(JNIEnv * env, jobject obj)

Answer 2

You try this(" void Java_ogs_test_ogskcg_ogstranspose(JNIEnv * env, jobject obj) ") decleration. and use extern keyword

extern "C"{
 void Java_ogs_test_ogskcg_ogstranspose(JNIEnv * env, jobject obj)
}