Converting JObject into an FJsonObject

captainTvZs · June 25, 2020, 1:38pm

I have an Android Plugin that communicates with Java. It returns from Java with a native function. One of the parameters of this function is JObject. How can I convert this JObject into an FJsonObject?

Java native function:

public native void nativeFacebookOnLoadFriendsComplete(JSONObject Object);

And this is the C++ function:

extern "C" void Java_com_epicgames_ue4_GameActivity_nativeFacebookOnLoadFriendsComplete(JNIEnv* jenv, jobject thiz, jobject object) { }

Shadowriver · June 28, 2020, 11:18am

Those are Java Native Interface (JNI) types, here some extensive tutorial on JNI i found

https://www3.ntu.edu.sg/home/ehchua/programming/java/JavaNativeInterface.html

Just you know jobject is referencing to Java Object it something compliantly different then object which part of JavaScript standard and has nothing to do with Java objects.

I think better approach is to read data on Java side and pass the raw data to C++ so you don’t need to process java object in C++ which sounds like uphill task.