This is a Demo of Jni calling Kotlin Native originated from Google's jni demo.
Kotlin Native can interop with C directly. In order to call Kotlin Native functions from Java, we should use CName to annotated the functions with a proper name:
@CName("Java_com_example_hellojni_HelloJni_stringFromJNI")
fun stringFromJNI(env: CPointer<JNIEnvVar>, thiz: jobject): jstring {
memScoped {
return env.pointed.pointed!!.NewStringUTF!!.invoke(env, "This is from Kotlin Native!!".cstr.ptr)!!
}
}What's in the demo：
- Uses of Android Log
- Return a Java String
- Call Java methods from Kotlin Native
Simply Build and run your app. Dependencies are carefully managed by gradle.
Screen shot:
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