I will make a new post in Android-Platform group,hopefully I can get some help there, thanks Dianne!
On Dec 13, 4:52 am, "Dianne Hackborn" <hack...@android.com> wrote: > Hi, since native code is not currently supported in the SDK, this post is > not appropriate for this group. Please post on one of the open-source > platformg groups such as android-platform. > > > > > > On Fri, Dec 12, 2008 at 1:53 AM, kevin_fan <kevin....@gmail.com> wrote: > > > Hi Group! > > > I created my own android application using eclipse+ADT. Inside the > > application, there is a class called "UniFNativeInterface", it loads > > the library "libUniFNativeCode.so" and contains a few "native" > > methods, which means it is simply a wrapper of native features. The > > libray - "libUniFNativeCode.so" is for the native implementation. Of > > course, before I run my application, I push the lib into to the > > emulator. > > This is scenario one, and everything worked fine. > > > Because of my curiosity, I tried to integrate the package > > "com.android.unif"(where class "UniFNativeInterface" lives in) into > > the platform, I simply locate the package folder under "D:\SourceCode > > \android\mydroid\frameworks\base\core\java\com\android\", to make it a > > part of framework.jar, and then rebuild everything. > > When I reboot the emulator with the newly - built images, and invoked > > the use of class "UniFNativeInterface", VM crashed with the below > > log: > > > ..... > > D/dalvikvm( 227): Trying to load lib /system/lib/libUniFNativeCode.so > > 0x0 > > D/dalvikvm( 227): Added shared lib /system/lib/libUniFNativeCode.so > > 0x0 > > W/dalvikvm( 227): JNI WARNING: JNI method called with exception > > raised > > W/dalvikvm( 227): in Ljava/lang/Runtime;.nativeLoad > > (Ljava/lang/String;Ljava/lang/ClassLoader;)Z (RegisterNatives) > > W/dalvikvm( 227): Pending exception is: > > I/dalvikvm( 227): Ljava/lang/NoClassDefFoundError;: > > com.android.unif.UniFNativeInterface > > I/dalvikvm( 227): at java.lang.Runtime.nativeLoad(Native Method) > > I/dalvikvm( 227): at java.lang.Runtime.loadLibrary(Runtime.java:380) > > I/dalvikvm( 227): at java.lang.System.loadLibrary(System.java:458) > > I/dalvikvm( 227): at com.android.unif.UniFNativeInterface.<clinit> > > (UniFNativeInterface.java:113) > > ..... > > > My code was built into the platform(framework.jar, more precisely) > > successfully, otherwise libUniFNativeCode.so wouldn't be loaded > > (crap...); > > and the library was correctly found; > > > I think the problem took place when the native library tried to the > > register native methods to class com.android.unif.UniFNativeInterface, > > but Runtime could not find the definition of that class. However, we > > can see from the log that the package and class name is exactly the > > same as it is supposed to be, then why this happened....I saw there > > are a few usages of JNI in framework, was there anything I missed?? > > > The only difference I can see of above two scenarios are the > > environment, any idea? > > > any suggestions will be appreciated!!! thanks in advance!!! > > -- > Dianne Hackborn > Android framework engineer > hack...@android.com > > Note: please don't send private questions to me, as I don't have time to > provide private support. All such questions should be posted on public > forums, where I and others can see and answer them.- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
