I'm having a bit trouble saving an array of strings to userDefaults. I have an Array of strings declaired in a class, with a property observer ment to sync to userDefaults. Furthermore, I want the array to be limited to a maximum of 5 Strings.
let userDefaults = NSUserDefaults.standardUserDefaults()
var suggestions: [String]! {
didSet {
var arrayEnd = suggestions.count
if arrayEnd >= 5 {
arrayEnd = 4
}
let newArray = Array(suggestions[0...arrayEnd])
userDefaults.setObject(newArray, forKey: "suggestions")
userDefaults.synchronize()
}
}
func getSuggestionData() {
if userDefaults.valueForKey("suggestions") != nil {
self.suggestions = userDefaults.valueForKey("suggestions") as? [String]
}
}
override func viewDidLoad() {
super.viewDidLoad()
getSuggestionData()
suggestions.insert("someString", atIndex: 0)
}
}
When i run this i get:
fatal error: unexpectedly found nil while unwrapping an Optional value
on the line where I try to insert a new object to the array. I have tried following the approach in this thread, but it didn't save anything to the list.
I'm new to swift, and optional-types aren't my strong side, maybe someone know what's wrong?