Marius Myburg
Lurker
Good day.
It is possible to change for example the native-plasma example, which is a fully native Android app with only C++ and no Java or Kotlin, to be able to call custom Java/Kotlin that you add to the app?
I have used native-plasma as a base for an application, and now I need to call into third-party libraries, which they provided as Java, of course. But I cannot seem to find a way to now import their libraries and use their classes.
I tried the following:
1) Get ANativeActivity* activity from android_app*.
2) Get JavaVM* vm from this.
3) Call AttachCurrentThread on this vm to get a new JNIEnv*.
But now calling FindClass on this JNIEnv* always returns NULL. I have not tried to get things like Java/Lang/String, I am quite sure that will work, but I am trying to get to a class that I added to my project myself.
Would anyone be so kind to please get the ready-made native-activity example from the NDK samples and just try to somehow invoke a Java or Kotlin method from the native code? I will really appreciate a solution or a definite answer that it is not possible if it is not.
Thank you!
It is possible to change for example the native-plasma example, which is a fully native Android app with only C++ and no Java or Kotlin, to be able to call custom Java/Kotlin that you add to the app?
I have used native-plasma as a base for an application, and now I need to call into third-party libraries, which they provided as Java, of course. But I cannot seem to find a way to now import their libraries and use their classes.
I tried the following:
1) Get ANativeActivity* activity from android_app*.
2) Get JavaVM* vm from this.
3) Call AttachCurrentThread on this vm to get a new JNIEnv*.
But now calling FindClass on this JNIEnv* always returns NULL. I have not tried to get things like Java/Lang/String, I am quite sure that will work, but I am trying to get to a class that I added to my project myself.
Would anyone be so kind to please get the ready-made native-activity example from the NDK samples and just try to somehow invoke a Java or Kotlin method from the native code? I will really appreciate a solution or a definite answer that it is not possible if it is not.
Thank you!