CODEWITHSUNDEEP
swift
skhiomura
skhiomura

Reputation: 67

Swift Storing information in a constant and keeping it there

Hello I am currently doing a project where the user types something in a textfield, and presses a button, where whatever the user types in the textfield appears as part of the alertbody of a notification. To do this I save the textfield.text as a variable and then use string interpolation to include it into the alertbody. The problem is that the time in which I fire the notifications change every week, so I have to make new notifications. And I still want to use whatever the user typed into the textfield. But since the textfield.text was saved inside a function, I do not think that it will be stored outside the function. This is what my code looks like so far

override func viewDidLoad() {
 super.viewDidLoad()
 timer = NSTimer.scheduledTimerWithTimeInterval(604800, target: self,selector:Selector("repeater"), userInfo: nil, repeats: true)
 }

savedtext:String!    

@IBAction func setNotification{
textfield.text = savedtext
 //set notifications and other stuff here
}
//outside the function savedtext should not have the textfield's info
func repeater{
//setting notification
}

Sorry if my question is a bit difficult to understand Any help is appreciated

Upvotes: 0

Views: 61

Answers (1)

FruitAddict
FruitAddict

Reputation: 2032

I'd use NSUserDefaults here, it will persist your data in a key-value map, even after the user or system kills the app. The code would look like this

let ALERT_MESSAGE_KEY : String = "myAlertMsgKey"

@IBAction func setNotification{
   let defaults = NSUserDefaults.standardUserDefaults()
   defaults.setValue(textfield.text , forKey: ALERT_MESSAGE_KEY) 
   NSUserDefaults.standardUserDefaults().synchronize()
  //set notifications and other stuff here
}

and in repeater function:

func repeater {
   let defaults = NSUserDefaults.standardUserDefaults()
   let alertMessage = defaults.valueForKey(ALERT_MESSAGE_KEY) as? String ?? "No message saved"
}

You could also use Core Data for this, but it would be an overkill for something so simple

Upvotes: 3

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