JNI with android?

Hey guys! I've been working on c++ application lately which has t开发者_开发知识库o be run on Android 2.1 and 2.2. so I am wondering if I have complete c++ application can I just put it into *.so file and then create android project and just simply load this library using System.loadLibrary(blalba.so); would it work?

Yes you will have to recompile all the native libraries specifically for Android. Yes, you do need the source code for all 3rd party native libs you plan to use simply because Usually when we compile and link these libraries outside Android they are linked to glibc but unfortunately Android doesn't use glibc due to liscence and performance issues. Android uses a watered down version of glibc called libc. It has matching symbol names to glibc for most of the usual functionalities. But as far as i know the libc doesn't have some functionality related to Strings and it definitely doesnt have some posix support. If your native libraries are using any of the deprecated functionality you will have to find workaround for those by using alternative functionality supported by libc and coding your libs accordingly.

Also, as you righty pointed out you will have to use the NDK to interface Java(Android app/fwk) to native world(C++).

Though this sounds pretty simple in my experience compiling native libraries on Android(Android porting) has traditionally been very time consuming with no guarantee of sucesses.