loading my library

[souissi haythem]

i used your project: http://code.google.com/p/droidreader/

when i try to run my project, i got a problem loading my library
"pdfrender" Here is the line causing the problem:
System.loadLibrary("pdfrender"); In my project,i have a floader named
jni and contain the library pdfrender.c

There are my logcat:

02-28 10:57:55.241: E/AndroidRuntime(596):
java.lang.ExceptionInInitializerError
02-28 10:57:55.241: E/AndroidRuntime(596): at
de.hilses.droidreader.DroidReaderActivity.onCreate(DroidReaderActivity.java:
108)
02-28 10:57:55.241: E/AndroidRuntime(596): at
android.app.Activity.performCreate(Activity.java:4465)
02-28 10:57:55.241: E/AndroidRuntime(596): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
1049)
02-28 10:57:55.241: E/AndroidRuntime(596): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
1920)
02-28 10:57:55.241: E/AndroidRuntime(596): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
1981)
02-28 10:57:55.241: E/AndroidRuntime(596): at
android.app.ActivityThread.access$600(ActivityThread.java:123)
02-28 10:57:55.241: E/AndroidRuntime(596): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
02-28 10:57:55.241: E/AndroidRuntime(596): at
android.os.Handler.dispatchMessage(Handler.java:99)
02-28 10:57:55.241: E/AndroidRuntime(596): at
android.os.Looper.loop(Looper.java:137)
02-28 10:57:55.241: E/AndroidRuntime(596): at
android.app.ActivityThread.main(ActivityThread.java:4424)
02-28 10:57:55.241: E/AndroidRuntime(596): at
java.lang.reflect.Method.invokeNative(Native Method)
02-28 10:57:55.241: E/AndroidRuntime(596): at
java.lang.reflect.Method.invoke(Method.java:511)
02-28 10:57:55.241: E/AndroidRuntime(596): at
com.android.internal.os.ZygoteInit
$MethodAndArgsCaller.run(ZygoteInit.java:784)
02-28 10:57:55.241: E/AndroidRuntime(596): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
02-28 10:57:55.241: E/AndroidRuntime(596): at
dalvik.system.NativeStart.main(Native Method)
02-28 10:57:55.241: E/AndroidRuntime(596): Caused by:
java.lang.UnsatisfiedLinkError: Couldn't load pdfrender: findLibrary
returned null
02-28 10:57:55.241: E/AndroidRuntime(596): at
java.lang.Runtime.loadLibrary(Runtime.java:365)
02-28 10:57:55.241: E/AndroidRuntime(596): at
java.lang.System.loadLibrary(System.java:535)
02-28 10:57:55.241: E/AndroidRuntime(596): at
de.hilses.droidreader.PdfRender.<clinit>(PdfRender.java:111)
02-28 10:57:55.241: E/AndroidRuntime(596): ... 15 more

[Hans-Werner Hilse]

Hi,

yes, I think the library (pdfrender.so) did not get built. You need
the NDK in order to build it. DroidReader uses a native code library
(via JNI) for the actual rendering.

-hwh

2012/2/28 souissi haythem <hayt...@gmail.com>: