Adding a .so file in Android Studio

Question

I am trying to add an external library, Scandit. I keep getting this error:

    java.lang.UnsatisfiedLinkError: Couldn't load scanditsdk-android-3.3.1 from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.clover.barcode2-1.apk,libraryPath=/data/app-lib/com.clover.barcode2-1]: findLibrary returned null     at java.lang.Runtime.loadLibrary(Runtime.java:365)    ..... 

I assume it is because I am not properly including the .so file that comes with the library, but I can't figure out how to do it.

I am using Android Studio and I added the library by going to module settings -> libraries and added the directory with the jar and the directory with the so file.

Answer 1

You can add pre built *.so files in Android Studio using gradle 0.7.2+. First create the jniLibs at this location /app/src/main/ location and copy the all the folder with *.so files (armeabi, armeabi-v7a, mips, x86) in the jniLibs.

Answer 2

To use native-library (so files) You need to add some codes in the "build.gradle" file.

This code is for cleaing "armeabi" directory and copying 'so' files into "armeabi" while 'clean project'.

task copyJniLibs(type: Copy) {     from 'libs/armeabi'     into 'src/main/jniLibs/armeabi' } tasks.withType(JavaCompile) {     compileTask -> compileTask.dependsOn(copyJniLibs) } clean.dependsOn 'cleanCopyJniLibs' 

I've been referred from the below. https://gist.github.com/pocmo/6461138