Subclassing SCNScene in Swift - override init

问题

I'm getting some compiler errors in Xcode 6 using Swift which I have a hard time wrapping my head around. I'm trying to create a scene by subclassing SCNScene, but keep getting errors on the initialisers. The basic structure of my code is:

class SpaceScene: SCNScene {
    override init(named: String) {
        super.init(named: named)
    }
}

This results in an error on line 2 with the message "Initializer does not override a designated initializer from its superclass", although SCNScene clearly has such an initialiser. I think i'm missing something basic - any insights?

回答1:

On XCode 6.1, the following should do it:

class SpaceScene : SCNScene {

override init() {
    super.init()
}

required init(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
}
}

来源：https://stackoverflow.com/questions/26287108/subclassing-scnscene-in-swift-override-init