jni.h
provide this
struct JNINativeInterface_ {
...
jint (JNICALL *GetVersion)(JNIEnv *env);
...
}
to call it in C
can be written as
void test(JNIEnv *env){
// C
jint version = (*env)->GetVersion(env);
// C++
// jint version = env->GetVersion();
}
and then how can I do it in kotlin?
fun test(env: CPointer<JNIEnvVar>){
val version = // how?
}
After searching answer in google there are few example for Kotlin/Native
with JNI
but they're just basic example please help.
Thanks in advance.
Thanks to Michael.
Long answer is
fun test(env: CPointer<JNIEnvVar>){
// getting "JNINativeInterface_" reference from CPointer<JNIEnvVar> by
val jni:JNINativeInterface_ = env.pointed.pointed!!
// get function reference from JNINativeInterface_
// IntelliJ can help to find existing methods
val func = jni.GetVersion!!
// call a function
var version = func.invoke(env)
// above expression can be simplify as
version = env.pointed.pointed!!.GetVersion!!(env)!!
}
hope this can help somebody to understand Kotlin/Native 🙂.