Phone Number Formatter

UITextField and NSFormatter subclasses for formatting phone numbers. Allow different formats for different countries(patterns). Caret positioning works excellent. Swift 4.
If you need ObjC support use - https://github.com/Serheo/SHSPhoneComponent/

Installation

Carthage

github "Serheo/PhoneNumberFormatter"

CocoaPods

pod "SwiftPhoneNumberFormatter"

Getting Started

Default Format

textField.config.defaultConfiguration = PhoneFormat(defaultPhoneFormat: "(###) ###-##-##")

All input strings will be parsed in that way. Example: +1 (123) 123-45-67

Prefix Format

You can set prefix on all inputs:

textField.config.defaultConfiguration = PhoneFormat(defaultPhoneFormat: "(###) ###-##-##")
textField.prefix = "+7 "

Multiple Formats

textField.config.defaultConfiguration = PhoneFormat(defaultPhoneFormat: "##########")
textField.prefix = nil
let custom1 = PhoneFormat(phoneFormat: "+# (###) ###-##-##", regexp: "^7[0-689]\\d*$")
textField.config.add(format: custom1)

let custom2 = PhoneFormat(phoneFormat: "+### ###-##-##", regexp: "^380\\d*$")
textField.config.add(format: custom2)

Multiple Formats with prefix

textField.config.defaultConfiguration = PhoneFormat(defaultPhoneFormat: "### ### ###")
textField.prefix = "+7 "

let custom1 = PhoneFormat(phoneFormat: "(###) ###-##-##", regexp: "^1\\d*$")
textField.config.add(format: custom1)

let custom2 = PhoneFormat(phoneFormat: "(###) ###-###", regexp: "^2\\d*$")
textField.config.add(format: custom2)

Listening to changes

To be notified of changes on the textField input add a textDidChangeBlock closure

textField.textDidChangeBlock = { field in
  if let text = field?.text, text != "" {
      print(text)
  } else {
      print("No text")
  }

Attempting to listen to changes through other means will likely fail (e.g., implementing UITextFieldDelegate's textField:shouldChangeCharactersIn:range:).

Requirements

iOS 9+ Swift 4

License

PhoneNumberFormatter is available under the MIT license. See the LICENSE file for more info.