UnsatisfiedLinkError on Lenovo devices.

[yev-kanivets]

Hi, we are getting crashes with following Stack Trace:

Fatal Exception: java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.m360.android-2/base.apk"],nativeLibraryDirectories=[/data/app/com.m360.android-2/lib/x86_64, /data/app/com.m360.android-2/base.apk!/lib/x86_64, /vendor/lib64, /system/lib64]]] couldn't find "libbox-jni.so"
       at java.lang.Runtime.loadLibrary(Runtime.java:367)
       at java.lang.System.loadLibrary(System.java:1076)
       at com.box.androidsdk.preview.fragments.BoxPreviewDocumentFragment.<clinit>(BoxPreviewDocumentFragment.java:66)
       at com.box.androidsdk.preview.fragments.BoxPreviewFragment.createInstance(BoxPreviewFragment.java:485)
       at com.box.androidsdk.preview.adapters.PreviewFragmentStatePagerAdapter.getItem(PreviewFragmentStatePagerAdapter.java:42)
       at android.support.v4.app.FragmentStatePagerAdapter.instantiateItem(FragmentStatePagerAdapter.java:109)
       at com.box.androidsdk.preview.adapters.PreviewFragmentStatePagerAdapter.instantiateItem(PreviewFragmentStatePagerAdapter.java:104)
       at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:1004)
       at android.support.v4.view.ViewPager.populate(ViewPager.java:1152)
       at android.support.v4.view.ViewPager.populate(ViewPager.java:1086)
       at android.support.v4.view.ViewPager.setAdapter(ViewPager.java:534)
       at com.box.androidsdk.preview.BoxPreviewViewPager$4.run(BoxPreviewViewPager.java:207)
       at android.os.Handler.handleCallback(Handler.java:739)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:148)
       at android.app.ActivityThread.main(ActivityThread.java:5609)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:746)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)

For now this crash happens only on 2 Lenovo devices - "Lenovo YT3-X90F" and "YOGA3 Tablet Pro".

Do you have any ideas why it happens and how it can be fixed?

Thanks in advance :)

[doncung]

I believe this only happens on x86 devices. Our current pdf library is only bundled with a 32 bit library and so if you are using multiple native libraries if one is using a 64 bit library the OS will try to use a nonexistent 64 bit library for our SDK as well.

There is an pdf library change we are evaluating that includes a 64 bit x86 library, but unfortunately also doubles the library size. As such third parties will need to use apk splitting to reduce their apk size if we go with that approach.

This is a stack overflow that discusses the reason and explains a work around involving splitting.
https://stackoverflow.com/questions/34003040/android-multidex-unsatisfiedlinkerror-couldnt-find-so-file

[yev-kanivets]

@doncung yes, I think you are right. I believe, brand-new App Bundles can be used to resolve the doubling of APK size for third-party applications. They will automatically split .so files into several APKs for each architecture.