Formatage du numéro de téléphone dans Swift

Question

Je suis en train de formater mon texte texte une fois que l'utilisateur commence à taper le numéro de téléphone dans le format suivant: 0 (555) 444 66 77 et tout fonctionne correctement, mais une fois que je reçois le numéro sur le serveur, je l'obtiens comme ceci 05554446677 Alors, pourriez-vous me dire comment je peux modifier est-ce dans le même format une fois que je l'ai reçu du serveur?

Mon code une fois que je commence à taper:

func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {

    if textField == phoneNumberTextField{
        var newString = (textField.text as NSString).stringByReplacingCharactersInRange(range, withString: string)
        var components = newString.componentsSeparatedByCharactersInSet(NSCharacterSet.decimalDigitCharacterSet().invertedSet)

        var decimalString = "".join(components) as NSString
        var length = decimalString.length
        var hasLeadingOne = length > 0 && decimalString.characterAtIndex(0) == (1 as unichar)

        if length == 0 || (length > 11 && !hasLeadingOne) || length > 12{
            var newLength = (textField.text as NSString).length + (string as NSString).length - range.length as Int

            return (newLength > 11) ? false : true
        }
        var index = 0 as Int
        var formattedString = NSMutableString()

        if hasLeadingOne{
            formattedString.appendString("1 ")
            index += 1
        }

        if (length - index) > 1{
            var zeroNumber = decimalString.substringWithRange(NSMakeRange(index, 1))
            formattedString.appendFormat("%@ ", zeroNumber)
            index += 1
        }
        if (length - index) > 3{
            var areaCode = decimalString.substringWithRange(NSMakeRange(index, 3))
            formattedString.appendFormat("(%@) ", areaCode)
            index += 3
        }
        if (length - index) > 3{
            var prefix = decimalString.substringWithRange(NSMakeRange(index, 3))
            formattedString.appendFormat("%@ ", prefix)
            index += 3
        }
        if (length - index) > 3{
            var prefix = decimalString.substringWithRange(NSMakeRange(index, 2))
            formattedString.appendFormat("%@ ", prefix)
            index += 2
        }

        var remainder = decimalString.substringFromIndex(index)
        formattedString.appendString(remainder)
        textField.text = formattedString as String
        return false
    }else{
        return true
    }
}

Answer 1

Les manipulations avec des caractères dans String ne sont pas très simples. Vous avez besoin de suivre:

Swift 2.1

let s = "05554446677"
let s2 = String(format: "%@ (%@) %@ %@ %@", s.substringToIndex(s.startIndex.advancedBy(1)),
    s.substringWithRange(s.startIndex.advancedBy(1) ... s.startIndex.advancedBy(3)),
    s.substringWithRange(s.startIndex.advancedBy(4) ... s.startIndex.advancedBy(6)),
    s.substringWithRange(s.startIndex.advancedBy(7) ... s.startIndex.advancedBy(8)),
    s.substringWithRange(s.startIndex.advancedBy(9) ... s.startIndex.advancedBy(10))
)

Swift 2.0

let s = "05554446677"
let s2 = String(format: "%@ (%@) %@ %@ %@", s.substringToIndex(advance(s.startIndex, 1)),
    s.substringWithRange(advance(s.startIndex, 1) ... advance(s.startIndex, 3)),
    s.substringWithRange(advance(s.startIndex, 4) ... advance(s.startIndex, 6)),
    s.substringWithRange(advance(s.startIndex, 7) ... advance(s.startIndex, 8)),
    s.substringWithRange(advance(s.startIndex, 9) ... advance(s.startIndex, 10))
)

Le code sera imprimé 0 (555) 444 66 77

Answer 2

Swift 3 & 4

Cette solution supprime tous les caractères non numériques avant d'appliquer le formatage. Il renvoie nil si le numéro de téléphone source ne peut pas être formaté en fonction d'hypothèses.

Swift 4

La solution Swift 4 explique que le caractère obsolète de CharacterView et Sting deviennent une collection de caractères comme le est CharacterView.

import Foundation

func format(phoneNumber sourcePhoneNumber: String) -> String? {
    // Remove any character that is not a number
    let numbersOnly = sourcePhoneNumber.components(separatedBy: CharacterSet.decimalDigits.inverted).joined()
    let length = numbersOnly.count
    let hasLeadingOne = numbersOnly.hasPrefix("1")

    // Check for supported phone number length
    guard length == 7 || length == 10 || (length == 11 && hasLeadingOne) else {
        return nil
    }

    let hasAreaCode = (length >= 10)
    var sourceIndex = 0

    // Leading 1
    var leadingOne = ""
    if hasLeadingOne {
        leadingOne = "1 "
        sourceIndex += 1
    }

    // Area code
    var areaCode = ""
    if hasAreaCode {
        let areaCodeLength = 3
        guard let areaCodeSubstring = numbersOnly.substring(start: sourceIndex, offsetBy: areaCodeLength) else {
            return nil
        }
        areaCode = String(format: "(%@) ", areaCodeSubstring)
        sourceIndex += areaCodeLength
    }

    // Prefix, 3 characters
    let prefixLength = 3
    guard let prefix = numbersOnly.substring(start: sourceIndex, offsetBy: prefixLength) else {
        return nil
    }
    sourceIndex += prefixLength

    // Suffix, 4 characters
    let suffixLength = 4
    guard let suffix = numbersOnly.substring(start: sourceIndex, offsetBy: suffixLength) else {
        return nil
    }

    return leadingOne + areaCode + prefix + "-" + suffix
}

extension String {
    /// This method makes it easier extract a substring by character index where a character is viewed as a human-readable character (grapheme cluster).
    internal func substring(start: Int, offsetBy: Int) -> String? {
        guard let substringStartIndex = self.index(startIndex, offsetBy: start, limitedBy: endIndex) else {
            return nil
        }

        guard let substringEndIndex = self.index(startIndex, offsetBy: start + offsetBy, limitedBy: endIndex) else {
            return nil
        }

        return String(self[substringStartIndex ..< substringEndIndex])
    }
}

Swift 3

import Foundation

func format(phoneNumber sourcePhoneNumber: String) -> String? {

    // Remove any character that is not a number
    let numbersOnly = sourcePhoneNumber.components(separatedBy: CharacterSet.decimalDigits.inverted).joined()
    let length = numbersOnly.characters.count
    let hasLeadingOne = numbersOnly.hasPrefix("1")

    // Check for supported phone number length
    guard length == 7 || length == 10 || (length == 11 && hasLeadingOne) else {
        return nil
    }

    let hasAreaCode = (length >= 10)
    var sourceIndex = 0

    // Leading 1
    var leadingOne = ""
    if hasLeadingOne {
        leadingOne = "1 "
        sourceIndex += 1
    }

    // Area code
    var areaCode = ""
    if hasAreaCode {
        let areaCodeLength = 3
        guard let areaCodeSubstring = numbersOnly.characters.substring(start: sourceIndex, offsetBy: areaCodeLength) else {
            return nil
        }
        areaCode = String(format: "(%@) ", areaCodeSubstring)
        sourceIndex += areaCodeLength
    }

    // Prefix, 3 characters
    let prefixLength = 3
    guard let prefix = numbersOnly.characters.substring(start: sourceIndex, offsetBy: prefixLength) else {
        return nil
    }
    sourceIndex += prefixLength

    // Suffix, 4 characters
    let suffixLength = 4
    guard let suffix = numbersOnly.characters.substring(start: sourceIndex, offsetBy: suffixLength) else {
        return nil
    }

    return leadingOne + areaCode + prefix + "-" + suffix
}

extension String.CharacterView {
    /// This method makes it easier extract a substring by character index where a character is viewed as a human-readable character (grapheme cluster).
    internal func substring(start: Int, offsetBy: Int) -> String? {
        guard let substringStartIndex = self.index(startIndex, offsetBy: start, limitedBy: endIndex) else {
            return nil
        }

        guard let substringEndIndex = self.index(startIndex, offsetBy: start + offsetBy, limitedBy: endIndex) else {
            return nil
        }

        return String(self[substringStartIndex ..< substringEndIndex])
    }
}

Exemple

func testFormat(sourcePhoneNumber: String) -> String {
    if let formattedPhoneNumber = format(phoneNumber: sourcePhoneNumber) {
        return "'\(sourcePhoneNumber)' => '\(formattedPhoneNumber)'"
    }
    else {
        return "'\(sourcePhoneNumber)' => nil"
    }
}

print(testFormat(sourcePhoneNumber: "1 800 222 3333"))
print(testFormat(sourcePhoneNumber: "18002223333"))
print(testFormat(sourcePhoneNumber: "8002223333"))
print(testFormat(sourcePhoneNumber: "2223333"))
print(testFormat(sourcePhoneNumber: "18002223333444"))
print(testFormat(sourcePhoneNumber: "Letters8002223333"))

Exemple de sortie

'1 800 222 3333' => '1 [phone]'

'18002223333' => '1 [phone]'

'8002223333' => '[phone]'

'2223333' => '222-3333'

'18002223333444' => nil

'Letters8002223333' => '[phone]'

Answer 3

Swift 4

let s = "05554446677"
let s2 = String(format: "%@ (%@) %@ %@ %@",
    s.substring(to: s.index(s.startIndex, offsetBy: 1)),
    s.substring(with: s.index(s.startIndex, offsetBy: 1) ..< s.index(s.startIndex, offsetBy: 4)),
    s.substring(with: s.index(s.startIndex, offsetBy: 4) ..< s.index(s.startIndex, offsetBy: 7)),
    s.substring(with: s.index(s.startIndex, offsetBy: 7) ..< s.index(s.startIndex, offsetBy: 9)),
    s.substring(with: s.index(s.startIndex, offsetBy: 9) ..< s.index(s.startIndex, offsetBy: 11))
    )

Mais cela ne fonctionne pas si les caractères de chaîne comptent plus ou moins que 11

Dactylographie masquée

private func formattedNumber(number: String) -> String {
    let cleanPhoneNumber = number.components(separatedBy: CharacterSet.decimalDigits.inverted).joined()
    let mask = "+X (XXX) XXX-XXXX"

    var result = ""
    var index = cleanPhoneNumber.startIndex
    for ch in mask {
        if index == cleanPhoneNumber.endIndex {
            break
        }
        if ch == "X" {
            result.append(cleanPhoneNumber[index])
            index = cleanPhoneNumber.index(after: index)
        } else {
            result.append(ch)
        }
    }
    return result
}

Appelez la fonction ci-dessus à partir de la méthode de délégué UITextField:

func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
    textField.text = formattedNumber(number: textField.text!)
    return true
}

Donc, ça marche mieux.

"" => ""
"0" => "+0"
"412" => "+4 (12"
"12345678901" => "[phone]"

Answer 4

Vous pouvez utiliser cette bibliothèque https://github.com/luximetr/AnyFormatKit

Exemple 

let textInputController = TextInputController()

let textInput = TextInputField() // or TextInputView or any TextInput
textInputController.textInput = textInput // setting textInput

let formatter = TextInputFormatter(textPattern: "### (###) ###-##-##", prefix: "+12")
textInputController.formatter = formatter // setting formatter

Il suffit de définir votre textField sur textInputController pour formater le texte avec le motif que vous avez défini.

Answer 5

Solution vraiment simple:

extension String {
    func applyPatternOnNumbers(pattern: String, replacmentCharacter: Character) -> String {
        var pureNumber = self.replacingOccurrences( of: "[^0-9]", with: "", options: .regularExpression)
        for index in 0 ..< pattern.count {
            guard index < pureNumber.count else { return pureNumber }
            let stringIndex = String.Index(encodedOffset: index)
            let patternCharacter = pattern[stringIndex]
            guard patternCharacter != replacmentCharacter else { continue }
            pureNumber.insert(patternCharacter, at: stringIndex)
        }
        return pureNumber
    }
}

Usage:

guard let text = textField.text else { return }
textField.text = text.applyPatternOnNumbers(pattern: "+# (###) ###-####", replacmentCharacter: "#")

Answer 6

Swift 3 mais devrait aussi pouvoir être traduit en Swift 4

1. La gestion des erreurs

   enum PhoneNumberFormattingError: Error {
       case wrongCharactersInPhoneNumber
       case phoneNumberLongerThanPatternAllowes
   }
   

2. Créer des motifs

   enum PhoneNumberFormattingPatterns: String {
       case mobile = "+xx (yxx) xxxxxxxxxxx"
       case home = "+xx (yxxx) xxxx-xxx"
   }
   

3. Insérer une fonction

   /**
        Formats a phone-number to correct format
        - Parameter pattern: The pattern to format the phone-number.
        - Example:
           - x: Says that this should be a digit.
           - y: Says that this digit cannot be a "0".
           - The length of the pattern restricts also the length of allowed phone-number digits.
               - phone-number: "[phone]"
               - pattern: "+xx (yxx) xxxxxxxxxxx"
               - result: "[phone]"
   
        - Throws:
           - PhoneNumberFormattingError
               - wrongCharactersInPhoneNumber: if phone-number contains other characters than digits.
               - phoneNumberLongerThanPatternAllowes: if phone-number is longer than pattern allows.
        - Returns:
           - The formatted phone-number due to the pattern.
        */
   extension String {
       func vpToFormattedPhoneNumber(withPattern pattern: PhoneNumberFormattingPatterns) throws -> String {
           let phoneNumber = self.replacingOccurrences(of: "+", with: "")
           var retVal: String = ""
           var index = 0
           for char in pattern.rawValue.lowercased().characters {
               guard index < phoneNumber.characters.count else {
                   return retVal
               }
   
               if char == "x" {
                   let charIndex = phoneNumber.index(phoneNumber.startIndex, offsetBy: index)
                   let phoneChar = phoneNumber[charIndex]
                   guard "0"..."9" ~= phoneChar else {
                       throw PhoneNumberFormattingError.wrongCharactersInPhoneNumber
                   }
                   retVal.append(phoneChar)
                   index += 1
               } else if char == "y" {
                   var charIndex = phoneNumber.index(phoneNumber.startIndex, offsetBy: index)
                   var indexTemp = 1
                   while phoneNumber[charIndex] == "0" {
                       charIndex = phoneNumber.index(phoneNumber.startIndex, offsetBy: index + indexTemp)
                       indexTemp += 1
                   }
   
                   let phoneChar = phoneNumber[charIndex]
                   guard "0"..."9" ~= phoneChar else {
                       throw PhoneNumberFormattingError.wrongCharactersInPhoneNumber
                   }
                   retVal.append(phoneChar)
                   index += indexTemp
               } else {
                   retVal.append(char)
               }
           }
   
           if phoneNumber.endIndex > phoneNumber.index(phoneNumber.startIndex, offsetBy: index) {
               throw PhoneNumberFormattingError.phoneNumberLongerThanPatternAllowes
           }
   
           return retVal
       }
   }
   

4. Usage

   let phoneNumber = "[phone]"
   let phoneNumber2 = "4343211234567"
   
   do {
       print(try phoneNumber.vpToFormattedPhoneNumber(withPattern: .mobile))
       print(try phoneNumber2.vpToFormattedPhoneNumber(withPattern: .home))
   } catch let error as PhoneNumberFormattingError {
       switch error {
       case .wrongCharactersInPhoneNumber:
           print("wrong characters in phone number")
       case .phoneNumberLongerThanPatternAllowes:
           print("too long phone number")
       default:
           print("unknown error")
       }
   } catch {
       print("something other went wrong")
   }
   
   // output: [phone]
   // output: [phone]
   

Answer 7

Swift 4

Créer cette fonction et appeler un événement de champ de texte Modification modifiée

private func formatPhone(_ number: String) -> String {
    let cleanNumber = number.components(separatedBy: CharacterSet.decimalDigits.inverted).joined()
    let format: [Character] = ["X", "X", "X", "-", "X", "X", "X", "-", "X", "X", "X", "X"]

    var result = ""
    var index = cleanNumber.startIndex
    for ch in format {
        if index == cleanNumber.endIndex {
            break
        }
        if ch == "X" {
            result.append(cleanNumber[index])
            index = cleanNumber.index(after: index)
        } else {
            result.append(ch)
        }
    }
    return result
}

Answer 8

Il y a un certain nombre de bonnes réponses ici, mais j’ai adopté une approche complètement différente et je pensais partager au cas où cela aiderait.

Pour commencer, j'ai divisé les étapes de formatage et les composants en leurs propres responsabilités. 

Le format du numéro de téléphone peut généralement être décomposé en types de format local, national ou international qui varient en fonction de la longueur de la chaîne. 

J'ai défini les types:

/// Defines the three different types of formatting phone numbers use
///
/// - local: Numbers used locally.
/// - domestic: Numbers used locally including area codes.
/// - international: Numbers used internationally with country codes.
public enum PhoneFormatType {
    case local
    case domestic
    case international
}

Puis défini les séparateurs disponibles pour formater une chaîne de numéro de téléphone:

// Defines separators that are available for use in formatting
// phone number strings.
public enum PhoneFormatSeparator {
    case hyphen
    case plus
    case space
    case parenthesisLH
    case parenthesisRH
    case slash
    case backslash
    case pipe
    case asterisk

    public var value: String {
        switch self {
        case .hyphen: return "-"
        case .plus: return "+"
        case .space: return " "
        case .parenthesisLH: return "("
        case .parenthesisRH: return ")"
        case .slash: return "/"
        case .backslash: return "\\"
        case .pipe: return "|"
        case .asterisk: return "*"
        }
    }
}

Ensuite, j'ai défini des règles de formatage qui spécifient l'index (dans une chaîne de numéro de téléphone) où les séparateurs tels que +, -, etc. sont insérés.

// defines the separators that should be inserted in a phone number string
// and the indexes where they should be applied
public protocol PhoneNumberFormatRule {

    // the index in a phone number where this separator should be applied
    var index: Int { get set }

    // the priority in which this rule should be applied. Sorted in inverse, 0 is highest priority, higher numbers are lower priority
    var priority: Int { get set }

    // the separator to use at this index
    var separator: PhoneFormatSeparator { get set }
}

/// Default implementation of PhoneNumberFormatRule
open class PNFormatRule: PhoneNumberFormatRule {
    public var index: Int
    public var priority: Int
    public var separator: PhoneFormatSeparator

    public init(_ index: Int, separator: PhoneFormatSeparator, priority: Int = 0) {
        self.index = index
        self.separator = separator
        self.priority = priority
    }
}

Avec ceux-ci définis, j'ai créé des ensembles de règles qui associent des règles à un type de format donné. 

/// Defines the rule sets associated with a given phone number type.
/// e.g. international/domestic/local
public protocol PhoneFormatRuleset {

    /// The type of phone number formatting to which these rules apply
    var type: PhoneFormatType { get set }

    /// A collection of rules to apply for this phone number type.
    var rules: [PhoneNumberFormatRule] { get set }

    /// The maximum length a number using this format ruleset should be. (Inclusive)
    var maxLength: Int { get set }
}

Avec tout défini de cette manière, vous pouvez configurer rapidement des ensembles de règles pour convenir au format souhaité.

Voici un exemple de jeu de règles qui définit 3 règles pour une chaîne de numéro de téléphone au format trait d'union généralement utilisée aux États-Unis:

    // Formats phone numbers:
    //  .local: 123-4567
    //  .domestic: 123-456-7890
    //  .international: [phone]
    static func usHyphen() -> [PhoneFormatRuleset] {
        return [
            PNFormatRuleset(.local, rules: [
                PNFormatRule(3, separator: .hyphen)
                ], maxLength: 7),
            PNFormatRuleset(.domestic, rules: [
                PNFormatRule(3, separator: .hyphen),
                PNFormatRule(6, separator: .hyphen)
                ], maxLength: 10),
            PNFormatRuleset(.international, rules: [
                PNFormatRule(0, separator: .plus),
                PNFormatRule(1, separator: .space),
                PNFormatRule(4, separator: .hyphen),
                PNFormatRule(7, separator: .hyphen)
                ], maxLength: 11)
        ]
    }

Le (pas si) lourd travail de la logique de formatage se passe ici:

// formats a string using the format rule provided at initialization
public func format(number: String) -> String {

    // strip non numeric characters
    let n = number.components(separatedBy: CharacterSet.decimalDigits.inverted).joined()

    // bail if we have an empty string, or if no ruleset is defined to handle formatting
    guard n.count > 0, let type = type(for: n.count), let ruleset = ruleset(for: type) else {
        return n
    }

    // this is the string we'll return
    var formatted = ""

    // enumerate the numeric string
    for (i,character) in n.enumerated() {

        // bail if user entered more numbers than allowed for our formatting ruleset
        guard i <= ruleset.maxLength else {
            break
        }

        // if there is a separator defined to be inserted at this index then add it to the formatted string
        if let separator = ruleset.separator(for: i) {
            formatted+=separator
        }

        // now append the character
        formatted+="\(character)"
    }

    return formatted
} 

J'ai créé un framework avec un exemple de projet que vous pouvez consulter ici: https://github.com/appteur/phoneformat

Voici comment cela fonctionne lorsque vous tapez:

 

Je l'ai également mis en place pour que vous puissiez simplement l'importer avec des cocoapodes.

pod 'SwiftPhoneFormat', '1.0.0'

Alors utilisez-le:

import SwiftPhoneFormat

var formatter = PhoneFormatter(rulesets: PNFormatRuleset.usParethesis())
let formatted = formatter.format(number: numberString)

Answer 9

var formattedPhone = phone
if phone.count == 11 {
    let firstChar = phone[..<phone.index(phone.startIndex, offsetBy: 1)]
    if firstChar == "1" {
        formattedPhone = String(format: "(%@) %@-%@",
                                            String(phone[phone.index(phone.startIndex, offsetBy: 1)..<phone.index(phone.startIndex, offsetBy: 4)]),
                                            String(phone[phone.index(phone.startIndex, offsetBy: 4) ..< phone.index(phone.startIndex, offsetBy: 7)]),
                                            String(phone[phone.index(phone.startIndex, offsetBy: 7) ..< phone.index(phone.startIndex, offsetBy: 11)]))
       }
 }

Answer 10

C'est l'extension qui remplira votre exigence:

 extension String {
 func convertToInternationalFormat() -> String {
    let isMoreThanTenDigit = self.count > 10
    _ = self.startIndex
    var newstr = ""
    if isMoreThanTenDigit {
        newstr = "\(self.dropFirst(self.count - 10))"
    }
    else if self.count == 10{
        newstr = "\(self)"
    }
    else {
        return "number has only \(self.count) digits"
    }
    if  newstr.count == 10 {
        let internationalString = "(\(newstr.dropLast(7))) \(newstr.dropLast(4).dropFirst(3)) \(newstr.dropFirst(6).dropLast(2)) \(newstr.dropFirst(8))"
        newstr = internationalString
    }
    return newstr
 }
 }

INPUT :
var str1 = "9253248954"
var str2 = "[phone]"
var str3 = "19253248954"

OUTPUT :
str1.convertToInternationalFormat() // "(925) 324 89 54"
str2.convertToInternationalFormat() // "(925) 324 89 54"
str3.convertToInternationalFormat() // "(925) 324 89 54"