 
 extension CBPinEntryView: UITextFieldDelegate {
     @objc func textfieldChanged(_ textField: UITextField) {
-        let complete: Bool = textField.text!.characters.count == length
+        let complete: Bool = textField.text!.count == length
         delegate?.entryChanged(complete)
     }
 

            button.layer.borderColor = entryBorderColour.cgColor
        }

        let deleting = (range.location == textField.text!.characters.count - 1 && range.length == 1 && string == "")

        if string.characters.count > 0 && !Scanner(string: string).scanInt(nil) {
            return false
        }

        let oldLength = textField.text!.characters.count
        let replacementLength = string.characters.count
        let rangeLength = range.length

        let newLength = oldLength - rangeLength + replacementLength

    @objc private func didPressCodeButton(_ sender: UIButton) {
        errorMode = false
        
        let entryIndex = textField.text!.count + 1
        for button in entryButtons {
            button.layer.borderColor = entryBorderColour.cgColor

