Question/Issue:
Does anyone could import the C++ Library into an Android Studio native project with java as main language? I’m trying to do that, but I haven’t find the right way to do that. If there is someone who has achieve it, can you help me? Project ID:
Context/Use case:
I’m trying to build an app with android studio and java as main language. However I have to integrate the Impulse there and I tried with the C++ library.
The project is done with java, because I’m using an Empatica E4 wristband and its SDK is build for java and as an android studio native project. So, I create the Impulse with data from that wristband and the idea is to integrate everything in one app.
If someone can help me, I will be very thankful with you
Android dev is not something I’m familiar with. It looks like it’s possible to import a C++ library (Import C++ Impulse Library in Android Studio), but I could not tell you the specifics. My guess would be that you need to modify your C++ SDK library so that it compiles to an object file that you can call from Java and get rid of main.cpp.
I don’t think it matters if you use Java or Kotlin. To call C++ you use FFI.
As a test (without hooking up any calls), I would just include the EdgeImpulse C++ library #include "..\ei_include\edge-impulse-sdk\classifier\ei_run_classifier.h" and see if it will compile.
I’m trying yet. I’ve been working on it two weeks and I feel the same as you. But until now I found two things:
I didn’t use Flutter. I tried the method that appears in Android Studio about how to use native library. That way I found that ei_run_classifier.h is the library that show me problems too.
But the others look fine (apparently).
2). I exported from the project “my_custom_library” and it has a .tflite file which I could import from Android Studio and maybe It works. (at least, It compiled). So, I wish It works.
If I get something, I will post it!
Looks like it is working.
Right now I’m working on preprocessing part. How to get the DSP analysis and so on to get the input .
Would be really nice if you can import the .tflite file at least and start working again!
C’mon I think we can achieve it!
Hi!!
It was really hard and I don’t know if there’s any update, but apparently there’s not.
What I did in that time was to use the Edge-Impulse Web Assembly deployment that they give and I create a WebView object in Android Studio Project.
From there I can run the Edge-Impulse model as if it runs inside a webpage. Then, what I did, it was to connect the model and the app data. It was a mix of javascript, java/kotlin .
Here is the code I used one year ago. I have not done any maintenance, but I hope it’s still working.
Hi, you can compile the edge impulse library with the main.cpp as android static library .so file. download AndroidNativePlugin.unitypackage zip, extract it and import the unitypackage in unity, then you will get a src there which will contain android.mk, application.mk and build_plugin.sh. You can use that to compile edge impulse library. Just add
I’m glad you finally got it to work! Coming back to this however, I was wondering if you got around to get a solid DSP analysis block along with the .tflite model? I’m working on a similar project, but I need optimized performance, which is why the web assembly package won’t work for me. I’m working on a Flutter app. My top two options are currently deploying a C++ library and using a .tflite model (or some combination of the two). If you have any suggestions, I’d love to hear them out!
Would you be able to help out with what your main issue was? Was the C++ library not getting deployed, or was it some other issue. I’m going down a similar route and just want to be wary of the considerations before diving in! Thanks so much.
I think we can achieve it!