title: Native OpenCV Samples for Android throws UnsatisfiedLinkError
body: <p>I try to run the opencv android samples on the emulator. The samples with native code e.g. sample "Tutorial 2 Advanced - 1. Add Native OpenCV" fails. I have a Win7 x86 System. I can build the native libs but i always get the following exception if i run the sample:</p>
  
  <p><pre><code> 
  10-04 08:08:19.179: WARN/dalvikvm(696): Exception Ljava/lang/UnsatisfiedLinkError; thrown while initializing Lorg/opencv/samples/tutorial3/Sample3View;
  10-04 08:08:19.190: DEBUG/AndroidRuntime(696): Shutting down VM
  10-04 08:08:19.190: WARN/dalvikvm(696): threadid=1: thread exiting with uncaught exception (group=0x40015560)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696): FATAL EXCEPTION: main
  10-04 08:08:19.289: ERROR/AndroidRuntime(696): java.lang.ExceptionInInitializerError
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at org.opencv.samples.tutorial3.Sample3Native.onCreate(Sample3Native.java:23)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at android.os.Handler.dispatchMessage(Handler.java:99)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at android.os.Looper.loop(Looper.java:123)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at android.app.ActivityThread.main(ActivityThread.java:3683)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at java.lang.reflect.Method.invokeNative(Native Method)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at java.lang.reflect.Method.invoke(Method.java:507)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at dalvik.system.NativeStart.main(Native Method)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load native_sample: findLibrary returned null
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at java.lang.Runtime.loadLibrary(Runtime.java:429)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at java.lang.System.loadLibrary(System.java:554)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     at org.opencv.samples.tutorial3.Sample3View.(Sample3View.java:27)
  10-04 08:08:19.289: ERROR/AndroidRuntime(696):     ... 14 more
  10-04 08:08:19.389: WARN/ActivityManager(70):   Force finishing activity org.opencv.samples.tutorial3/.Sample3Native
  10-04 08:08:19.959: WARN/ActivityManager(70): Activity pause timeout for HistoryRecord{406f26a0 org.opencv.samples.tutorial3/.Sample3Native}
  10-04 08:08:20.089: DEBUG/dalvikvm(70): GC_EXPLICIT freed 92K, 47% free 4404K/8263K, external 5449K/5830K, paused 103ms
  </pre></code></p>
  
  <p>Any ideas, how to fix this problem?
  Thanks</p>