Opentok library stopped working on S7 edge

Question

it was working prev but its crashing from today Device

Galaxy S7 Edge (hero2lte)

Manufacturer Samsung Android version

Android 6.0 RAM (MB) 4096 OpenGL ES version 3.1 Native platform

armeabi-v7a CPU make Samsung CPU model Exynos 8890

java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.metronomic.materno-2/base.apk"],nativeLibraryDirectories=[/data/app/com.metronomic.materno-2/lib/arm64, /data/app/com.metronomic.materno-2/base.apk!/lib/arm64-v8a, /vendor/lib64, /system/lib64]]] couldn't find "libopentok.so"
    at java.lang.Runtime.loadLibrary(Runtime.java:367)
    at java.lang.System.loadLibrary(System.java:1076)
    at com.opentok.android.Session.<clinit>(Session.java:52)
    at com.metronomic.pregnancy.VideoConsultActivity.sessionConnect(VideoConsultActivity.java:506)
    at com.metronomic.pregnancy.VideoConsultActivity.onCreate(VideoConsultActivity.java:155)
    at android.app.Activity.performCreate(Activity.java:6876)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3207)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350)
    at android.app.ActivityThread.access$1100(ActivityThread.java:222)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:158)
    at android.app.ActivityThread.main(ActivityThread.java:7229)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

Answer 1

Just found a solution: Add this to app level gradle .

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

But i want to know in detail why and what is difference , after adding this code snippet .