No jniopencv_core UnsatisfiedLinkError Android Studio

[bytedeco]

No jniopencv_core UnsatisfiedLinkError Android Studio

[saudet]

Apparently Android Studio doesn't work with JAR files for JNI libraries anymore. We'd need to build an AAR file for that:
http://tools.android.com/tech-docs/new-build-system/aar-format
If this is something you'd like to work on, please let me know. It would be something useful for many people I'm sure. For now, it looks like we need to do it the manual way by copying the native files to a subdirectory of the the jniLibs project folder, a procedure that doesn't seem to be documented officially anywhere...

[cmosboss]

I wish I knew how to do that or I would love to help out!

[saudet]

Manually installing the JAR files in Android Studio work fine though. I've updated the instructions for that here:
https://github.com/bytedeco/javacpp-presets/tree/develop#manual-installation

[MkrMkr]

Looks like the way with copying native files to jniLibs... doesn't work anymore. My project suddenly starts crashes today and I get error (one of my favorite): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load opencv_core: findLibrary returned null.
Please tell me that I'm wrong.
Edit. I tried also with new projects

[saudet]

Extracting all the native libraries to app/src/main/jniLibs should still work, but it's easier to just copy the JAR files themselves to the app/libs directory. I've confirmed that Android Studio's Gradle still does the extracting of JAR files for us:
https://github.com/bytedeco/javacv#manual-installation
So I guess I'll close this issue :)