ios - 货币数字的格式

Question

我创建了一个小型货币转换器。缺点我不知道如何给它一个带有千位分隔符的格式。例如，结果是 10 000 000。 10 如果您能给我建议，我将非常感谢。下面是我的代码

class ChangeViewController: UIViewController {

@IBOutlet weak var usdamount: UITextField!

@IBOutlet weak var label: UILabel!



var noImput = "Merci de saisir une valeur"

var currencynum = Int()


override func viewDidLoad() {
    super.viewDidLoad()

    label.text = ""

    // Do any additional setup after loading the view.

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
// rejet du clavier
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?){
    view.endEditing(true)
    super.touchesBegan(touches, with: event)
}

@IBAction func currency(_ sender: UISegmentedControl) {


    switch sender.selectedSegmentIndex{
    case 0:
        currencynum = 0
        break
    case 1:
        currencynum = 1
        break
    default:
        break
    }
}

@IBAction func convert(_ sender: AnyObject) {

    if usdamount.text == "" {
        label.text = noImput

    } else {
        let num = Int(usdamount.text!)
    switch currencynum {

    case 0:
        let convertednum = Double(num!) * 14500
        label.text = "\(num!) Euro(s) = \(convertednum) Rupiah(s)"
        break
    case 1:
        let convertednum = Double(num!) * 0.000067
        label.text = "\(num!) Rupiah = \(convertednum) Euros"
        break
    default:
        break
    }
            }
}


}

Answer 1

Hello swift 已经有适合您情况的货币 UI 样式

SWIFT 3

 let amount = Int(usdamount.text!)
 let numberFormatter = NumberFormatter()
 numberFormatter.currencyCode = "USD"   
 numberFormatter.numberStyle = NumberFormatter.Style.currency 
 let newValue = numberFormatter.string(from: NSNumber(value: amount!))
 print(newValue)

SWIFT 2

 let amount = Int(usdamount.text!)
 let numberFormatter = NSNumberFormatter()
 numberFormatter.currencyCode = "EUR"
 numberFormatter.numberStyle = NSNumberFormatterStyle.CurrencyStyle
 let newValue  = numberFormatter.stringFromNumber(amount)!
 print(newValue)