Hi Salvatore,
You don't need to load jni by yourself.
At iotivity/android/android_api/base/build/outputs/aar/ you should find two
files .aar, one debug and one release. Add these .aar files as module in
Android Studio (on eclipse I don't know how to do).
To add .aar file as module on android studio, you can follow the step 8
from iotivity/android/BuildInstructionsForAndroidAPI.txt
I hope it helps you!
2015-06-15 8:45 GMT-03:00 Iovene, Salvatore <salvatore.iovene at intel.com>:
> Thanks,
> upgrading to API level 21 did fix that particular problem. Btw, can
> you advise on which of the libraries I need to load, and in what
> order?
>
> I tried this:
>
> static {
> Log.d(TAG, "Loading native libraries...");
> System.loadLibrary("connectivity_abstraction");
> System.loadLibrary("octbstack");
> System.loadLibrary("oc");
> System.loadLibrary("oc_logger");
> System.loadLibrary("gnustl_shared");
> System.loadLibrary("ca-interface");
> System.loadLibrary("ocstack-jni");
> Log.d(TAG, "Done loading native libraries.");
> }
>
> and Crosswalk complains about a mysterious (i.e. not better specified)
> UnsatisfiedLinkError:
>
> D/XWALK_OIC( 2399): Loading native libraries...
> I/JNI_CA_INTERFACE( 2399): CaInterface_initialize
> I/CA_ADAPTER_UTILS( 2399): CANativeJNISetJavaVM
> I/OIC-JNI ( 2399): JNI_OnLoad
> D/AndroidRuntime( 2399): Shutting down VM
> E/AndroidRuntime( 2399): FATAL EXCEPTION: main
> E/AndroidRuntime( 2399): Process:
> org.crosswalkproject.crosswalk_oic_demo, PID: 2399
> E/AndroidRuntime( 2399): java.lang.UnsatisfiedLinkError: JNI_ERR
> returned from JNI_OnLoad in
>
> "/data/app/org.crosswalkproject.crosswalk_oic_demo-1/lib/x86/libocstack-jni.so"
> E/AndroidRuntime( 2399): at
> java.lang.Runtime.loadLibrary(Runtime.java:371)
> E/AndroidRuntime( 2399): at
> java.lang.System.loadLibrary(System.java:989)
> E/AndroidRuntime( 2399): at
> org.crosswalkproject.oic.OIC.<clinit>(OIC.java:30)
> E/AndroidRuntime( 2399): at
> java.lang.reflect.Constructor.newInstance(Native Method)
> E/AndroidRuntime( 2399): at
> java.lang.reflect.Constructor.newInstance(Constructor.java:288)
> E/AndroidRuntime( 2399): at
>
> org.xwalk.app.runtime.extension.XWalkRuntimeExtensionManager.createExternalExtension(XWalkRuntimeExtensionManager.java:221)
> E/AndroidRuntime( 2399): at
>
> org.xwalk.app.runtime.extension.XWalkRuntimeExtensionManager.loadExternalExtensions(XWalkRuntimeExtensionManager.java:170)
> E/AndroidRuntime( 2399): at
>
> org.xwalk.app.runtime.extension.XWalkRuntimeExtensionManager.loadExtensions(XWalkRuntimeExtensionManager.java:132)
> E/AndroidRuntime( 2399): at
>
> org.xwalk.app.XWalkRuntimeActivityBase.tryLoadRuntimeView(XWalkRuntimeActivityBase.java:134)
> E/AndroidRuntime( 2399): at
>
> org.xwalk.app.XWalkRuntimeActivityBase.onCreate(XWalkRuntimeActivityBase.java:45)
> E/AndroidRuntime( 2399): at
>
> org.crosswalkproject.crosswalk_oic_demo.CrosswalkOicDemoActivity.onCreate(CrosswalkOicDemoActivity.java:21)
> E/AndroidRuntime( 2399): at
> android.app.Activity.performCreate(Activity.java:5937)
> E/AndroidRuntime( 2399): at
> android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
> E/AndroidRuntime( 2399): at
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
> E/AndroidRuntime( 2399): at
> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
> E/AndroidRuntime( 2399): at
> android.app.ActivityThread.access$800(ActivityThread.java:144)
> E/AndroidRuntime( 2399): at
> android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
> E/AndroidRuntime( 2399): at
> android.os.Handler.dispatchMessage(Handler.java:102)
> E/AndroidRuntime( 2399): at android.os.Looper.loop(Looper.java:135)
> E/AndroidRuntime( 2399): at
> android.app.ActivityThread.main(ActivityThread.java:5221)
> E/AndroidRuntime( 2399): at java.lang.reflect.Method.invoke(Native
> Method)
> E/AndroidRuntime( 2399): at
> java.lang.reflect.Method.invoke(Method.java:372)
> E/AndroidRuntime( 2399): at
>
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
> E/AndroidRuntime( 2399): at
> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
> W/ActivityManager( 1221): Force finishing activity
> org.crosswalkproject.crosswalk_oic_demo/.CrosswalkOicDemoActivity
>
>
> If I try to omit `System.loadLibrary("ocstack-jni");`, then the JNI
> loading completes with no errors, but when using `PlatformConfig` I
> get:
>
> E/XWalkExtensionManager( 2461): Error in calling methods of external
> extensions. java.lang.reflect.InvocationTargetException
>
> Unfortunately there are no more details in logcat.
>
> Ideas?
> Thanks!
>
>
>
> On Fri, Jun 12, 2015 at 7:16 PM, Lenahan, Charlie
> <charlie.lenahan at intel.com> wrote:
> >
> > This was covered in an earlier thread ~5/21/15 , that symbol was for
> > android-21, which is what the build is set for.
> >
> > To run it on an older device you will have to change what it is
> targeting.
> >
> > On 6/12/15, 6:34 AM, "Iovene, Salvatore" <salvatore.iovene at intel.com>
> > wrote:
> >
> >>Hi,
> >>I built Iotivity for Android using the Scons README file and a recent
> >>check out of the master branch, and I got a nice .aar file with
> >>classes.jar and .so files. Great!
> >>
> >>I tried to use Iotivity in an Android app (really a Crosswalk
> >>extension), but upon attempting to use "System.loadLibrary" to load
> >>the .so files, I get this error at run time:
> >>
> >>E/dalvikvm(14417):
>
> >>dlopen("/data/app-lib/org.crosswalkproject.crosswalk_oic_demo-2/libconnect
> >>ivity_abstraction.so")
> >>failed: dlopen failed: cannot locate symbol
> >>"pthread_condattr_setclock" referenced by
> >>"libconnectivity_abstraction.so"...
> >>
> >>It looks like pthread cannot be found? Could I possibly be missing
> >>something? This is on an Android 4.4.2 device.
> >>
> >>Thanks in advance!
> >>Salvatore
> >>
> >>--
> >>Salvatore Iovene <salvatore.iovene at intel.com>
> >>Linux Software Engineer
> >>Intel Open Source Technology Center, Finland
> >>Tel.: +358504804026
> >>_______________________________________________
> >>iotivity-dev mailing list
> >>iotivity-dev at lists.iotivity.org
> >>https://lists.iotivity.org/mailman/listinfo/iotivity-dev
>
>
>
> --
> Salvatore Iovene <salvatore.iovene at intel.com>
> Linux Software Engineer
> Intel Open Source Technology Center, Finland
> Tel.: +358504804026
> _______________________________________________
> iotivity-dev mailing list
> iotivity-dev at lists.iotivity.org
> https://lists.iotivity.org/mailman/listinfo/iotivity-dev
>
--
*Davi Di?rio Mendes*
Eng. de Computa??o - Turma de 2011
Universidade de S?o Paulo - EESC/ICMC
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