[zeromq-dev] Zyre on Android (JNI)

[Arnaud Loonstra]

Ok, I played with android studio a bit. Djeez, these dependencies fill 
my harddrive faster than I can empty. :S

Anyway, just build a simple app and ran it on a emulator:
Unfortunately, ZyreTest has stopped

It seems it can't find the czmq libs?

01-06 15:15:20.295 1257-1257/org.z25.zyretest I/art: Not late-enabling 
-Xcheck:jni (already on)
01-06 15:15:20.296 1257-1257/org.z25.zyretest I/art: Late-enabling JIT
01-06 15:15:20.701 1257-1257/org.z25.zyretest I/art: JIT created with 
code_cache_capacity=2MB compile_threshold=1000
01-06 15:15:23.956 1257-1257/org.z25.zyretest D/AndroidRuntime: 
Shutting down VM
01-06 15:15:23.996 1257-1257/org.z25.zyretest E/AndroidRuntime: FATAL 
EXCEPTION: main
                                                                 
Process: org.z25.zyretest, PID: 1257
                                                                 
java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol 
"zsys_handler_set" referenced by 
"/data/app/org.z25.zyretest-1/lib/arm/libzyrejni.so"...
                                                                     at 
java.lang.Runtime.loadLibrary(Runtime.java:372)
                                                                     at 
java.lang.System.loadLibrary(System.java:1076)
                                                                     at 
org.zeromq.zyre.Zyre.<clinit>(Zyre.java:13)
                                                                     at 
org.z25.zyretest.ZyreTest.onCreate(ZyreTest.java:15)
                                                                     at 
android.app.Activity.performCreate(Activity.java:6237)
                                                                     at 
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
                                                                     at 
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
                                                                     at 
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
                                                                     at 
android.app.ActivityThread.-wrap11(ActivityThread.java)
                                                                     at 
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
                                                                     at 
android.os.Handler.dispatchMessage(Handler.java:102)
                                                                     at 
android.os.Looper.loop(Looper.java:148)
                                                                     at 
android.app.ActivityThread.main(ActivityThread.java:5417)
                                                                     at 
java.lang.reflect.Method.invoke(Native Method)
                                                                     at 
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                                                                     at 
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
01-06 15:15:53.015 1257-1264/org.z25.zyretest W/art: Suspending all 
threads took: 20.768ms
01-06 15:16:49.526 1257-1264/org.z25.zyretest W/art: Suspending all 
threads took: 10.354ms
01-06 15:16:54.523 1257-1264/org.z25.zyretest W/art: Suspending all 
threads took: 10.210ms
01-06 15:16:58.523 1257-1264/org.z25.zyretest W/art: Suspending all 
threads took: 10.207ms
01-06 15:18:08.166 1257-1264/org.z25.zyretest W/art: Suspending all 
threads took: 10.199ms
01-06 15:18:11.163 1257-1264/org.z25.zyretest W/art: Suspending all 
threads took: 10.218ms
01-06 15:18:17.163 1257-1264/org.z25.zyretest W/art: Suspending all 
threads took: 10.194ms
01-06 15:18:19.163 1257-1264/org.z25.zyretest W/art: Suspending all 
threads took: 10.227ms
01-06 15:19:00.201 1257-1264/org.z25.zyretest W/art: Suspending all 
threads took: 25.579ms

Here's my source:

package org.z25.zyretest;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import org.zeromq.zyre.Zyre;

public class ZyreTest extends AppCompatActivity {

     public Zyre znode;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_zyre_test);
         znode = new Zyre("AndroidTest");
         znode.start();
     }

     @Override
     public void onDestroy()
     {
         super.onDestroy();
         znode.stop();
     }
}