We have an Objective C Project which is about to get some new features. These new features will be implemented in Swift. So far we have it all working with Swift and Objective C side by side and most of the things are quite pleasant to implement.
One thing I currently did not manage to accomplish is to access the (objc) app delegate from within swift, especially it's methods and the managed object context.
let appDelegate = UIApplication.sharedApplication().delegate! as UIApplicationDelegate
Use your appdelegate class name instead of UIApplicationDelegate
let appDelegate = UIApplication.sharedApplication().delegate! as <<Your Appdelegate Class>>
and also import that appdelegate in Bridging-Header file. "Bridging-Header" is used for both side bridge connection