aidl server service

ServerService.java

public class ServerService extends Service {
    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return new CalculatorServiceImpl();
    }

    @Override
    public void onCreate() {
        super.onCreate();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        return super.onStartCommand(intent, flags, startId);
    }

    private static class CalculatorServiceImpl extends ICalculator.Stub {

        @Override
        public int sum(int a, int b) throws RemoteException {
            return a + b;
        }
    }
}