On 2013-12-13 15:50, Manu wrote:

Really? Everything I've ever written on iOS was in full C++, with just
one .m file to boot, and marshall the view and input events :)
I think doing the same with D would be equally trivial. A game doesn't
need access to the full iOS UI library. Any OS service calls can be
wrapped in C functions in the marshalling .m file.

No need for an Objective-C file. The Objective-C methods can be accessed through the C functions available in the Objective-C runtime from D. Although, as been mentioned many times before, that's verbose and cumbersome. Both are ugly solutions, don't know which is the least ugly.