CODEWITHSUNDEEP
iosxcode
mdehghani
mdehghani

Reputation: 551

adding comma separator for numbers,every third digit while typing

i'm trying to add a comma separator for every third digit that user enters in textfield right away while typing for iOS app using swift 4.0 and Xcode 9. so far i've added these lines of code to my viewdidload method:

     self.mainTextField.delegate = self

  self.mainTextField(self, action: #selector(self.textFieldDidChange(textField:)), for: .editingChanged)

ive also added this function to my view controller:

func textFieldDidChange(textField: UITextField) {
        if textField == self.mainTextField {

            // Some locales use different punctuations.
            var textFormatted = textField.text?.replacingOccurrences(of: ",", with: "")
            textFormatted = textFormatted?.replacingOccurrences(of: ".", with: "")

            let numberFormatter = NumberFormatter()
            numberFormatter.numberStyle = .decimal
            if let text = textFormatted, let textAsInt = Int(text) {
                textField.text = numberFormatter.string(from: NSNumber(value: textAsInt))
            }
        }
    }

but i keep receiving this error from Xcode : Cannot call value of non-function type 'UITextField' on this line:

self.mainTextField(self, action: #selector(self.textFieldDidChange(textField:)), for: .editingChanged)

Upvotes: 0

Views: 637

Answers (1)

Alexander Gaidukov
Alexander Gaidukov

Reputation: 759

You forgot the method name addTarget. Instead of 

self.mainTextField(self, action: #selector(self.textFieldDidChange(textField:)), for: .editingChanged)

use

self.mainTextField.addTarget(self, action: #selector(self.textFieldDidChange(textField:)), for: .editingChanged)

Upvotes: 0

Related Questions