Thanks for the help. Using the hint on "getApplicationInfo().nativeLibraryDir" I could confirm it is a problem on this specific HTC. Probably a bug. On AVD and on a Samnsung it works correctly and I confirmed the existence of the lib files in getApplicationInfo().nativeLibraryDir. On the HTC they are not there when I move the app.
Thanks On Thu, May 16, 2013 at 2:42 PM, bob <[email protected]> wrote: > You may want to take a look here: > > http://developer.android.com/guide/topics/data/install-location.html > > In particular: > > * > * > > Beginning with API Level 8, you can allow your application to be installed > on the external storage (for example, the device's SD card). This is an > optional feature you can declare for your application with the > android:installLocation manifest attribute. *If you do not declare this > attribute, your application will be installed on the internal storage only > and it cannot be moved to the external storage.* > * > * > * > * > * > * > * > * > > It seems like the obvious solution is to just disallow people to move your > app to the external storage. > > Thanks. > > > On Thursday, May 16, 2013 4:19:20 AM UTC-5, Filipe wrote: > >> Hi, >> >> Thanks for the help. >> The problem is that I don't know where the libraries go to when I move >> the app to SD on my HTC for me to use System.load(). >> >> So the only workaround I found is to check for the existance of the .so >> file in the predefined folder "/data/data/your_package_name/**lib". >> If it is not there, then I unzip it from the package APK file to >> "/data/data/your_package_name/**files" folder and load it from there. >> >> Thanks >> >> >> >> On Wed, May 15, 2013 at 11:29 PM, Piren <[email protected]> wrote: >> >>> That's actually the same person making pretty much the same reply :-) >>> >>> >>> On Thursday, May 16, 2013 1:02:10 AM UTC+3, bob wrote: >>> >>>> I found this one using Google: >>>> >>>> https://groups.google.com/**foru**m/?fromgroups=#!topic/**android-** >>>> ndk/0uY4qgam1Ws<https://groups.google.com/forum/?fromgroups=#!topic/android-ndk/0uY4qgam1Ws> >>>> >>>> It says: >>>> >>>> You must use System.load() if you want to specify the full path name >>>> of the file, System.loadLibrary() is only for ones in the default >>>> location. >>>> >>>> Also *you should not be able to load an .so off the SDCARD on an ARM * >>>> *system by normal means*, as ARM supports non-executable pages and >>>> android's implementation of mmap() refuses to map executable pages >>>> backed by a noexec file system. To load from such a file system you >>>> would have to map anonymous executable pages and manually load the .so >>>> into them, doing appropriate interpretation of the contents and all >>>> fixups normally performed by the runtime linker. >>>> >>>> Thanks. >>>> >>>> >>>> On Wednesday, May 15, 2013 4:32:37 PM UTC-5, Piren wrote: >>>>> >>>>> That's what bing got me :) >>>>> >>>>> http://stackoverflow.com/**quest**ions/2826412/how-to-load-**jni-** >>>>> from-sd-card-on-android-2-**1<http://stackoverflow.com/questions/2826412/how-to-load-jni-from-sd-card-on-android-2-1> >>>>> >>>>> On Wednesday, May 15, 2013 12:00:50 PM UTC+3, Filipe wrote: >>>>> >>>>>> Hi, >>>>>> >>>>>> I had only used Bing up till now ;) >>>>>> Thanks for your great tutorial on this new thing called Google. >>>>>> I tryed it, but still did not find the answer. >>>>>> >>>>>> The libs are under the "/data/data/your_package_name/****lib" folder. >>>>>> When I move the App I start getting java.lang.**UnsatisfiedLinkError* >>>>>> *: findLibrary returned null >>>>>> >>>>>> I found some new things >>>>>> This works without problems on AVD. But I noticed that even if I move >>>>>> the App to the sdcard on the AVD, the lib remains in the same folder. >>>>>> >>>>>> So maybe the problem is specific to my HTC. >>>>>> Using "adb shell" I can find the libs in this folder. After moving to >>>>>> sdcard, when I use "adb shell" I get "permission denied" trying to access >>>>>> the lib folder !!! >>>>>> So I'm gessing that on my HTC the libs are moved, I just don't know >>>>>> where to. >>>>>> >>>>>> >>>>>> Thanks >>>>>> >>>>>> Terça-feira, 14 de Maio de 2013 23:51:21 UTC+1, Lew escreveu: >>>>>> >>>>>>> Filipe wrote: >>>>>>>> >>>>>>>> I have a project in Eclipse that uses some jni [sic] libraries that >>>>>>>> I load using System.loadLibrary("**myNativeLi**b"). >>>>>>>> >>>>>>> >>>>>>> Those libraries are native to what platform? >>>>>>> >>>>>>> >>>>>>>> >>>>>>>> This works great, but if I move my app to the SDCard it stops >>>>>>>> working, because it can't load the library. >>>>>>>> >>>>>>> >>>>>>> Did you take note of this from the Javadocs for >>>>>>> 'System.loadLibrary()'? >>>>>>> "The mapping of the specified library name to the full path for >>>>>>> loading the library is implementation-dependent." >>>>>>> >>>>>>> Where did you put the library on the device. Is this where the >>>>>>> system expects to find libraries? >>>>>>> >>>>>>> Are there any limitations on moving the app to SDCard when using >>>>>>>> jni? Or do I have to change my call to System.loadLibrary ? >>>>>>>> >>>>>>> >>>>>>> http://developer.android.com/**r**eference/java/lang/System.**html** >>>>>>> #loadLibrary(java.lang.**String)<http://developer.android.com/reference/java/lang/System.html#loadLibrary(java.lang.String)> >>>>>>> >>>>>>> Also, I see some potentially useful links here: >>>>>>> http://lmgtfy.com/?q=Android+**J**NI<http://lmgtfy.com/?q=Android+JNI> >>>>>>> >>>>>>> -- >>>>>>> Lew >>>>>>> >>>>>>> >>>>>> -- >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To post to this group, send email to android-d...@**googlegroups.com >>> >>> To unsubscribe from this group, send email to >>> android-developers+**[email protected] >>> For more options, visit this group at >>> http://groups.google.com/**group/android-developers?hl=en<http://groups.google.com/group/android-developers?hl=en> >>> --- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "Android Developers" group. >>> To unsubscribe from this topic, visit https://groups.google.com/d/** >>> topic/android-developers/**SmKVuQU0zN8/unsubscribe?hl=en<https://groups.google.com/d/topic/android-developers/SmKVuQU0zN8/unsubscribe?hl=en> >>> . >>> To unsubscribe from this group and all its topics, send an email to >>> android-developers+**[email protected]. >>> For more options, visit >>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>> . >>> >>> >>> >> >> -- > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > --- > You received this message because you are subscribed to a topic in the > Google Groups "Android Developers" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/android-developers/SmKVuQU0zN8/unsubscribe?hl=en > . > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
