SWIFT code dataWithContentsOfFile broken with update to XCode 6.1

Question

Ever since the latest update to XCode the following two lines of codes have compile errors. Can anybody please advice me on the adjustments I need to make to get the program to compile and run again?

        var sceneData = NSData.dataWithContentsOfFile(path, options: .DataReadingMappedIfSafe, error: nil)
        var archiver = NSKeyedUnarchiver(forReadingWithData: sceneData) archiver.setClass(self.classForKeyedUnarchiver(), forClassName: "SKScene")

Any help would be appreciated, thank you.

Answer 1

You can use (iOS < 8.0)

NSData.dataWithContentsOfMappedFile(path) 

or (iOS >= 7.0)

var sceneData = NSData(contentsOfFile: path, options: .DataReadingMappedIfSafe, error: nil)

If you create a new SpriteKit sample project in XCode 6.1, you will see the changes.

Answer 2

尝试这个

 var sceneData = NSData(contentsOfFile: path!, options: .DataReadingMappedIfSafe, error: nil)