Retrieve available devices after app did become active

[VNKorchagin]

Pull request for issue 209 "Retrieve available devices after app did become active"

[armadsen]

Thanks for the pull request!

MIKMIDI supports both macOS and iOS, and the changes you've made will break building for macOS. Can you please conditionalize the code as well as the dependency on UIKit?

[VNKorchagin]

Sorry, yes, it's my fault. I've never written a program for both systems (macOS and iOS).

I selected the code sections that require UIKIT by macros __IPHONE_OS_VERSION_MAX_ALLOWED. Compatibility with Mac OS has been restored now

[armadsen]

Thanks for making that change. I think using #if TARGET_OS_IPHONE is the better way to go, as that is specifically intended for doing conditional use of iOS API. You can find examples in several MIKMIDI source files, including NSUIApplication+MIKMIDI.h.

[VNKorchagin]

Yes you are right.
I made changes in accordance with the existing project code style.

Thanks for your feedback

[armadsen]

Thanks!