Question

I have been given a program written in C, and have been asked to use the functions from the program in a new Android application. I have been following the tutorials of the NDK, but have hit a wall. I think all that is left is compiling or linking my C files, but I’m not sure. I have installed the SDK, NDK, Eclipse, Cygwin, and Sequoyah ( I haven’t used Sequoyah yet and don’t really know where it comes into play ).

I have used the ndk-build command, but am not sure what I am should be expecting. This is a screenshot of my Cygwin terminal.

This is a screen shot of my NWPTest.c file. All of the fields defined in the .h file come up as errors. I feel like this is an error that should go away once I compile the code.

BYTE and WORD etc. declarations here:

This is a screen shot of the NWPTest.h file. BYTE and WORD declarations are also coming up as errors, which is something I do not understand.

This screen shot basically shows the last thing as the last one, but I’m confused how some of the BYTEs are errors and some are not:

EDIT

Here is my Android.mk file. Just to clarify, I was given the entire C project, and was told to make it an Android application. I have no experience with C.

Answer 1

Probably your problem is that Eclipse doesn’t know about the include path for the ndk C header files; however that should not really matter since ndk-build appears to have built your native library. Though if your C-aware eclipse setup is being obstinate and refusing to build the rest of your project with “errors” in the C files, then you will have to either fix the include path or tell eclipse to ignore the C files as it does when not aware of C.

Of more concern would be whatever is causing an error in Operations.java – that will prevent you from building an apk.