API similar to UIAlertController, backwards compatible to iOS 7. Will use the new shiny API when you run iOS 8.
We cheat a bit by having PSTAlertController superclass be NSObject, but for most use cases it's still a lot more convenient than using UIAlertView/UIActionSheet.
Functions that are only possible since UIAlertController are not back-ported. This is a simple wrapper to make your life more convenient, not a complete rewrite.
Written for PSPDFKit, The leading framework for displaying and annotating PDFs in your iOS apps.. It's a commercial library, but sometimes I just love to share.
Tested with iOS 7 upwards, Xcode 6.1 and ARC.
MIT, see LICENSE file.