NSUserDefaults Save Manager

SaveManager.swift

// MARK: - Manager

class SaveManager {

    
    // MARK: Singleton
    
    private static let instance = SaveManager()
    
    class func sharedInstance () -> SaveManager {
        return instance
    }
    
    
    // MARK: Manager
    
    func save (object: AnyObject, key: SaveManagerKeys) {
        standard().setObject(object, forKey: key.rawValue)
        sync()
    }
    
    func get (key: SaveManagerKeys) -> AnyObject? {
        return standard().objectForKey(key.rawValue)
    }
    
    func delete (key: SaveManagerKeys) {
        standard().removeObjectForKey(key.rawValue)
        sync()
    }
    
    
    func unarchive (key: SaveManagerKeys) -> AnyObject? {
        if let data = get(key) as? NSData {
            return NSKeyedUnarchiver.unarchiveObjectWithData(data)
        } else {
            return nil
        }
    }
    
    func archive (object: AnyObject, key: SaveManagerKeys) {
        let data = NSKeyedArchiver.archivedDataWithRootObject(object)
        save (data, key: key)
    }
    
    
    // MARK: Helpers
    
    func standard () -> NSUserDefaults {
        return NSUserDefaults.standardUserDefaults()
    }
    
    func sync () {
        standard().synchronize()
    }
}