Hi all.
I have taken an old Eclipse JNI project, converted it into an Android Studio project, modified the C code and then tested it in an Android Studio test project - it works perfectly.
Next i wrapped the new JNI project into a b4a library, tested and got nothing but an UnsatisfiedLinkError, android cannot find my native library file libRfm73Streams.so:
I'm compiling my wrapper using SLC and have a directory structure:
project-folder\additional\lib\armeabi-v7a\libRfm73Streams.so
project-folder\src\ <my classes here>
(armeabi-v7a is the only CPU architecture that i need to support, i use many other native libraries and the 'armeabi-v7a' variant is the one i always use on our custom android tablets).
SLC compiles my project and the library .jar contains:
<jar root folder>\lib\armeabi-v7a\libRfm73Streams.so
B4A compiles my test project and it throws the UnsatisfiedLinkError when started.
A quick check in the compiled .apk file shows no lib folder and no native library file.
So why isn't b4a compiling the library into the apk?
A forum search showed a similar problem from another member and the problem was caused by a mismatch of java package name in the native wrapper class - it didn't match the C function names.
Now i did refactor my library wrapper package name and C function names, i assume i have done this correctly as a test project in Android Studio worked fine.
How can i debug this problem?
Thanks.
I have taken an old Eclipse JNI project, converted it into an Android Studio project, modified the C code and then tested it in an Android Studio test project - it works perfectly.
Next i wrapped the new JNI project into a b4a library, tested and got nothing but an UnsatisfiedLinkError, android cannot find my native library file libRfm73Streams.so:
I'm compiling my wrapper using SLC and have a directory structure:
project-folder\additional\lib\armeabi-v7a\libRfm73Streams.so
project-folder\src\ <my classes here>
(armeabi-v7a is the only CPU architecture that i need to support, i use many other native libraries and the 'armeabi-v7a' variant is the one i always use on our custom android tablets).
SLC compiles my project and the library .jar contains:
<jar root folder>\lib\armeabi-v7a\libRfm73Streams.so
B4A compiles my test project and it throws the UnsatisfiedLinkError when started.
A quick check in the compiled .apk file shows no lib folder and no native library file.
So why isn't b4a compiling the library into the apk?
A forum search showed a similar problem from another member and the problem was caused by a mismatch of java package name in the native wrapper class - it didn't match the C function names.
Now i did refactor my library wrapper package name and C function names, i assume i have done this correctly as a test project in Android Studio worked fine.
How can i debug this problem?
Thanks.