I am facing the issue while I am adding the .so file in my project, from the other ans, I have tried with different solutions but not any solution help me out.

case: 1 I had tried to put my .so in src/main/jniLibs and in the gradle file I had added below lines, but getting the same error.

 android { sourceSets.main.jni.srcDirs = []
}

case:2 I had added cpp folder with native-lib.cpp and in gradle added below code:

defaultConfig { ndk { abiFilters "armeabi", "armeabi-v7a", "x86", "mips" } }

case:3 I had created new fresh project with c/c++ support and add a .so file under cpp folder and in the gradle added below code:

defaultConfig { externalNativeBuild { cmake { cppFlags "-std=c++11" } }
}

My project architecture

error code:

FATAL EXCEPTION: main
Process: ai.kitt.snowboy.demo, PID: 15175
java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/ai.kitt.snowboy.demo-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]] couldn't find "libsnowboy-detect-android.so" at java.lang.Runtime.loadLibrary(Runtime.java:366) at java.lang.System.loadLibrary(System.java:988) at ai.kitt.snowboy.audio.RecordingThread.<clinit>(RecordingThread.java:20) at ai.kitt.snowboy.Demo.onCreate(Demo.java:49) at android.app.Activity.performCreate(Activity.java:6010) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1129) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2292) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2413) at android.app.ActivityThread.access$800(ActivityThread.java:155) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5343) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)

I am using android studio 3.0.1, gradle: 3.0.1

10

2 Answers

Try add this in build.gradle:

sourceSets.main.jniLibs.srcDirs = ['src/main/jniLibs']

or add following into android block:

sourceSets { main { jniLibs.srcDirs = ['src/main/jniLibs'] }
}

Gradle may have problem when read default jniLibs path, just make it implicit.

sourceSets.main.jni.srcDirs not work because it defines jni source, like cpp source files folder.

Exception stacks nativeLibraryDirectories=[/vendor/lib, /system/lib]]] shows that system didn't detect your lib at all. To verify it, exact your apk to see whether there is a /lib folder and your *.so.

6

Or make your main library a SHARED library.

add_library(libname SHARED //files.cpp
)

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