android jni 调用static native void method

class A{

public static void getJNI()
{
 nativeGetJNI();
}

private static native void nativeGetJni();
}

.....

static void cn_com_native_getJNI(JNIEnv *, jobject)

.....
}

....
 static JNINativeMethod  jniMethods[]={

{"nativeGetJni","()V",(void*)cn_com_native_getJNI},
}

......