Int To String Swift

Question

I have made a counter and i have managed to save and load that data. The problem is that the "var counter = 0" so when i press the counter up (+1) instead of going to the next number, it goes back to 0 because the variable is set to 0. heres my code

class ReminderClass: NSViewController {


@IBOutlet var Count: NSTextField!

  override func viewDidLoad() {
    readStats()
    super.viewDidLoad()

}

func readStats() -> (NSString?){
    let location = NSString(string:"location to my file").stringByExpandingTildeInPath
    let fileContent = try? NSString(contentsOfFile: location, encoding: NSUTF8StringEncoding)
    print(fileContent)
    Count.stringValue = (fileContent?.stringByExpandingTildeInPath)!
    fileContent?.stringByReplacingOccurrencesOfString(Count.stringValue, withString: Count.stringValue)
    return fileContent
}

var counter = 0 //thats the problem
var counterfind = ""

@IBAction func PlusOne(sender: AnyObject) {
    counter = counter + 1
    Count.stringValue = NSString(format: "%i", counter) as String
}

@IBAction func MinusOne(sender: AnyObject) {
    counter = counter - 1
    Count.stringValue = NSString(format: "%i", counter) as String
}

@IBAction func save(sender: AnyObject) {
    print(Count.stringValue)
    let data = NSString(string:Count.stringValue)
    let destPath = "path to my file"
    _ = NSFileManager.defaultManager()
    do {
        try data.writeToFile(destPath, atomically: true, encoding: NSUTF8StringEncoding)
    } catch let error as NSError {
        print("Error: \(error)")
    }

    print(counter)
    self.view.window?.close()

}

Answer 1

Thank you all for helping me with the small issue I was having with my first mac application. I managed to figure out the problem. This is now my code :

class ReminderClass: NSViewController {




@IBOutlet var Count: NSTextField!

  override func viewDidLoad() {
    readStats()
    super.viewDidLoad()

}



func readStats() -> (NSString?){
    let location = NSString(string:"path-to-file").stringByExpandingTildeInPath
    let fileContent = try? NSString(contentsOfFile: location, encoding: NSUTF8StringEncoding)
    print(fileContent)
    Count.stringValue = (fileContent?.stringByExpandingTildeInPath)!
    fileContent?.stringByReplacingOccurrencesOfString(Count.stringValue, withString: Count.stringValue)
    return fileContent
}



    @IBAction func PlusOne(sender: AnyObject) {
    let counter : String = Count.stringValue
    var num : Int? = Int(counter)
    num = num! + 1
    Count.stringValue = NSString(format: "%i", num!) as String
    }

@IBAction func MinusOne(sender: AnyObject) {
    let counter : String = Count.stringValue
    var num : Int? = Int(counter)
    num = num! - 1
    Count.stringValue = NSString(format: "%i", num!) as String
    }


@IBAction func save(sender: AnyObject) {
    print(Count.stringValue)
    let data = NSString(string:Count.stringValue)
    let destPath = "path-to-file"
    _ = NSFileManager.defaultManager()
    do {
        try data.writeToFile(destPath, atomically: true, encoding: NSUTF8StringEncoding)
    } catch let error as NSError {
        print("Error: \(error)")
    }

    self.view.window?.close()

}

Thank you all again! :)

Answer 2

Try setting var counter = Int()

Answer 3

Try using this var counter :Int! = 0