SDL2 NativeActivity and CMake

Is there a simple hello world example or tutorial for SDL2 using CMake on
Android (from Windows)? I’d prefer to see an example using NativeActivity
but Java is great too (or one of each).

“SDL2-2.0.3\android-project” appears to show a Java example with a 1075
line “android-project\src\org\libsdl\app\” file, but it
does not include a NativeActivity example. I’m guessing that for a
NativeActivity example, we’d need C++ code analogous to

I notice that CMake now has built-in support for Android using nvidia tegra
nsight with Visual Studio 2010, so I wonder if it’s easy to use this with

thank you for any leads