How to Create a android native service and use binder to communicate with it?

Question

My basic task is to create a native service in android and then write a simple native program to test it. lets say I want to write a simple service which return me sum of two integers. I have to use binders to talk to it from the program, I have tried to google around but I can't find a precise example. I need to know how to create a native service and find it in the program and if needed in Java also.

Answer 1

The solution that I found is to use the Binders in native and use the

defaultServiceManager()->addService(
        String16("TestService"),new CalcService());

and then use binders and use following on client side.

sp<IServiceManager> sm = defaultServiceManager();
sp<IBinder> binder = sm->getService(String16("TestService"));

I found examples here on how to do this: https://github.com/gburca/BinderDemo/blob/master/binder.cpp