Use dll files in android Application

Question

Can I use dll files (commonly used in windows Application) in Android application?

Answer 1

If you have the src files for the DLL, try recompiling as an ELF32 shared object, then link that instead into your Android code (- below is a Windows solution):

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set NDK_HOME=C:\Android\android-ndk-r9c   // customize this var for your own location   
set LD_LIBRARY_PATH=%NDK_HOME%\platforms\android-18\arch-arm\usr\lib
cd 

REM -- TEMPORARILY COPY SOME LIBS COMPILER MAY NEED  
copy %NDK_HOME%\platforms\android-18\arch-arm\usr\lib\crtbegin*.o .   
copy %NDK_HOME%\platforms\android-18\arch-arm\usr\lib\crtend*.o .

REM -- GENERATE YOUR OBJ FILE  
%NDK_HOME%\toolchains\arm-linux-androideabi-4.8\prebuilt\windows-x86_64\bin\arm-linux-androideabi-gcc.exe -g -I%NDK_HOME%\platforms\android-18\arch-arm\usr\include -c -fPIC YourLib.c -o YourLib.o

REM -- GENERATE SHARED OBJ FROM OBJ FILE  
%NDK_HOME%\toolchains\arm-linux-androideabi-4.8\prebuilt\windows-x86_64\bin\arm-linux-androideabi-gcc.exe -g -L%NDK_HOME%\platforms\android-18\arch-arm\usr\lib -shared -o YourLib_so.so YourLib_so.o

REM -- finally, remove the libraries previously copied to src directory

del .\crtbegin*.o     
del .\crtend*.o

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You should now be able to use the resulting .so file in your Android project.