I am happy to announce the first release of SwiftAA, a Swift / Objective-C framework wrapping around JP Naughter's C++ implementation of the Astronomical Algorithms. It contains all the Objective-C wrappers as well as the Swift headers and files for you to access all the Astronomical Algorithms implementation of AA+ in Swift.
It is for iOS8+ as well as OSX Yosemite+
There is a very basic Swift Playground included. It will be developed in the coming months to exemplify the use of the AA.