Swift 中的电子邮件和电话验证
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【中文标题】Swift 中的电子邮件和电话验证【英文标题】：Email & Phone Validation in Swift 【发布时间】：2015-03-15 21:51:34 【问题描述】：我正在使用以下代码进行电话号码验证。但我收到以下错误。我无法继续进行。帮助我们继续前进。
class PhoneNumberValidation: Validation
let PHONE_REGEX = "^\\d3-\\d3-\\d4$"
func validate(value: String) -> (Bool, ValidationErrorType)
if let phoneTest = NSPredicate(format: "SELF MATCHES %@", PHONE_REGEX)
if phoneTest.evaluateWithObject(value)
return (true, .NoError)
return (false, .PhoneNumber)
return (false, .PhoneNumber)
错误：swift:15:28：条件绑定中的绑定值必须是可选类型
【问题讨论】：
我在您的代码中看不到明显的错误。使用哪个 Xcode 版本？错误发生在哪一行？ – 当然最好贴一个不依赖其他类的例子，这样我们就可以直接把你的代码贴到Xcode里面找问题了。 看来您使用的是过时的 Xcode 版本。更新到 Xcode 6.1.1，你的问题就消失了。 【参考方案1】：是的，您的错误在 XCode 6.1 下方
这个错误是因为if条件必须Bool返回类型，但是在你的if条件返回类型是NSPredicate所以你得到错误swift：条件绑定中的绑定值必须是可选类型的你可以解决如下。
var phoneTest = NSPredicate(format: "SELF MATCHES %@", PHONE_REGEX)
if phoneTest.evaluateWithObject(value)
return (true, .NoError)
return (false, .PhoneNumber)
Swift 中的电子邮件验证。
func isValidEmail(testStr:String) -> Bool
print("validate emilId: \(testStr)")
let emailRegEx = "^(?:(?:(?:(?: )*(?:(?:(?:\\t| )*\\r\\n)?(?:\\t| )+))+(?: )*)|(?: )+)?(?:(?:(?:[-A-Za-z0-9!#$%&’*+/=?^_'|~]+(?:\\.[-A-Za-z0-9!#$%&’*+/=?^_'|~]+)*)|(?:\"(?:(?:(?:(?: )*(?:(?:[!#-Z^-~]|\\[|\\])|(?:\\\\(?:\\t|[ -~]))))+(?: )*)|(?: )+)\"))(?:@)(?:(?:(?:[A-Za-z0-9](?:[-A-Za-z0-9]0,61[A-Za-z0-9])?)(?:\\.[A-Za-z0-9](?:[-A-Za-z0-9]0,61[A-Za-z0-9])?)*)|(?:\\[(?:(?:(?:(?:(?:[0-9]|(?:[1-9][0-9])|(?:1[0-9][0-9])|(?:2[0-4][0-9])|(?:25[0-5]))\\.)3(?:[0-9]|(?:[1-9][0-9])|(?:1[0-9][0-9])|(?:2[0-4][0-9])|(?:25[0-5]))))|(?:(?:(?: )*[!-Z^-~])*(?: )*)|(?:[Vv][0-9A-Fa-f]+\\.[-A-Za-z0-9._~!$&'()*+,;=:]+))\\])))(?:(?:(?:(?: )*(?:(?:(?:\\t| )*\\r\\n)?(?:\\t| )+))+(?: )*)|(?: )+)?$"
let emailTest = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
let result = emailTest.evaluateWithObject(testStr)
return result
使用电子邮件验证：
if isValidEmail("kirit@gmail.com")
print("Validate EmailID")
else
print("invalide EmailID")
Swift 中的电话号码验证
func validate(value: String) -> Bool
let PHONE_REGEX = "^\\d3-\\d3-\\d4$"
let phoneTest = NSPredicate(format: "SELF MATCHES %@", PHONE_REGEX)
let result = phoneTest.evaluate(with: value)
return result
【讨论】：
您使用的是哪个 Xcode 版本？这不能在我的 Xcode 6.1.1 或 6.2beta3 中编译。 – 如果您解释他的代码中的错误，而不是简单地发布您的代码，OP 也会从您的回答中受益更多。 您的回答没有解释为什么 OP 的代码会出现编译器错误。 在“f let phoneTest = NSPredicate(format: "SELF MATCHES %@", PHONE_REGEX) ------------ 条件绑定中的绑定值附近出现错误是可选类型”... 听起来像 NSPredicate init 函数不返回可选值。谁能证实这一点？如果不是，您不需要（实际上您不能）将该值绑定到 if-let 条件中。 请注意，let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,4" 不适用于大多数长度超过 4 个字符的新自定义 TLD。您可以使用 let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2," 更新它，因此 TLD 没有最大长度限制【参考方案2】：
以下代码适用于 xcode 6.3 beta
func isValidEmail(testStr:String) -> Bool
let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,4"
let range = testStr.rangeOfString(emailRegEx, options:.RegularExpressionSearch)
let result = range != nil ? true : false
return result
使用方法：
例如。
if isValidEmail(email.text) == false
//your code here
【讨论】：
或者简单的 !isValidEmail(testStr: email.text) //code here 【参考方案3】：Swift 3.0 到 5.0 更新解决方案：
//MARK:- Validation Extension-
extension String
//To check text field or String is blank or not
var isBlank: Bool
get
let trimmed = trimmingCharacters(in: CharacterSet.whitespaces)
return trimmed.isEmpty
//Validate Email
var isEmail: Bool
do
let regex = try NSRegularExpression(pattern: "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,", options: .caseInsensitive)
return regex.firstMatch(in: self, options: NSRegularExpression.MatchingOptions(rawValue: 0), range: NSMakeRange(0, self.count)) != nil
catch
return false
var isAlphanumeric: Bool
return !isEmpty && range(of: "[^a-zA-Z0-9]", options: .regularExpression) == nil
//validate Password
var isValidPassword: Bool
do
let regex = try NSRegularExpression(pattern: "^[a-zA-Z_0-9\\-_,;.:#+*?=!§$%&/()@]+$", options: .caseInsensitive)
if(regex.firstMatch(in: self, options: NSRegularExpression.MatchingOptions(rawValue: 0), range: NSMakeRange(0, self.characters.count)) != nil)
if(self.characters.count>=6 && self.count<=20)
return true
else
return false
else
return false
catch
return false
使用电子邮件验证：
if(txtEmail.isEmail)
Swift 2.0 解决方案
将这些行粘贴到代码中的任何位置。（或在您的常量文件中）
extension String
//To check text field or String is blank or not
var isBlank: Bool
get
let trimmed = stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())
return trimmed.isEmpty
//Validate Email
var isEmail: Bool
do
let regex = try NSRegularExpression(pattern: "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,", options: .CaseInsensitive)
return regex.firstMatchInString(self, options: NSMatchingOptions(rawValue: 0), range: NSMakeRange(0, self.count)) != nil
catch
return false
//validate PhoneNumber
var isPhoneNumber: Bool
let charcter = NSCharacterSet(charactersInString: "+0123456789").invertedSet
var filtered:NSString!
let inputString:NSArray = self.componentsSeparatedByCharactersInSet(charcter)
filtered = inputString.componentsJoinedByString("")
return self == filtered
【讨论】：
这是不正确的。因为它接受像 "!sd@gh" 这样的字符串作为正确的电子邮件地址。 您可以在一行中重写最后一次电话检查，而无需拆分和加入return self.rangeOfCharacterFromSet(NSCharacterSet(charactersInString: "+0123456789").invertedSet) == nil
@AbbasAngouti 请改进我同意这个问题的答案。我也会检查我的空闲时间。
@AbbasAngouti 我改进了电子邮件验证正则表达式，请检查。
还是不正确，如果你输入 "!sd@gh.com" 它返回 true【参考方案4】：
File-New-File.Make 一个名为 AppExtension 的 Swift 类。添加以下内容。
extension UIViewController
func validateEmailAndGetBoolValue(candidate: String) -> Bool
let emailRegex = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,6"
return NSPredicate(format: "SELF MATCHES %@", emailRegex).evaluateWithObject(candidate)
Use:
var emailValidator:Bool?
self.emailValidator = self.validateEmailAndGetBoolValue(resetEmail!)
print("emailValidator : "+String(self.emailValidator?.boolValue))
Use a loop to alternate desired results.
OR
extension String
//Validate Email
var isEmail: Bool
do
let regex = try NSRegularExpression(pattern: "^[a-zA-Z0-9.!#$%&'*+/=?^_`|~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]0,61[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]0,61[a-zA-Z0-9])?)*$", options: .CaseInsensitive)
return regex.firstMatchInString(self, options: NSMatchingOptions(rawValue: 0), range: NSMakeRange(0, self.characters.count)) != nil
catch
return false
Use:
if(resetEmail!.isEmail)
AppController().requestResetPassword(resetEmail!)
self.view.makeToast(message: "Sending OTP")
else
self.view.makeToast(message: "Please enter a valid email")
【讨论】：
【参考方案5】：为了多样化的另一种解决方案..
public extension String
public var validPhoneNumber:Bool
let types:NSTextCheckingType = [.PhoneNumber]
guard let detector = try? NSDataDetector(types: types.rawValue) else return false
if let match = detector.matchesInString(self, options: [], range: NSMakeRange(0, characters.count)).first?.phoneNumber
return match == self
else
return false
//and use like so:
if "16465551212".validPhoneNumber
print("valid phone number")
【讨论】：
validPhoneNumber 的结果将始终返回“true”。它只是创建一个 phoneNumber 类型的 NSTextCheckingResult，所以比较总是正确的。我认为您打算尝试使用 NSDataDetector。 谢谢@EPage_Ed，你是 100% 正确的！我已经更新以反映预期的实现。谢谢！【参考方案6】：也许是 Swift 2 中更好的手机验证器：
extension String
var isPhoneNumber: Bool
do
let detector = try NSDataDetector(types: NSTextCheckingType.PhoneNumber.rawValue)
let matches = detector.matchesInString(self, options: [], range: NSMakeRange(0, self.characters.count))
if let res = matches.first
return res.resultType == .PhoneNumber && res.range.location == 0 && res.range.length == self.characters.count
else
return false
catch
return false
【讨论】：
对于 Swift 4.2 var isPhoneNumber: Bool do 让检测器 = 尝试 NSDataDetector(types: NSTextCheckingResult.CheckingType.phoneNumber.rawValue) 让匹配 = 检测器.matches(in: self, options: [], range: NSMakeRange(0, self.count)) if let res = matches.first return res.resultType == .phoneNumber && res.range.location == 0 && res.range.length == self.count else 返回错误 捕捉 返回错误 Swift 5 var isValidPhone : Bool do 让检测器 = 尝试 NSDataDetector(types: NSTextCheckingResult.CheckingType.phoneNumber.rawValue) 让匹配 = 检测器.matches(in: self, options: [], range : NSMakeRange(0, self.count)) if let res = matches.first return res.resultType == .phoneNumber && res.range.location == 0 && res.range.length == self.count else return错误 捕捉 返回错误 【参考方案7】：斯威夫特 3：
private func validate(phoneNumber: String) -> Bool
let charcterSet = NSCharacterSet(charactersIn: "+0123456789").inverted
let inputString = phoneNumber.components(separatedBy: charcterSet)
let filtered = inputString.joined(separator: "")
return phoneNumber == filtered
【讨论】：
这只是验证您拥有所有数字而不是有效的电话号码【参考方案8】：Kirit Modi 关于 Swift 3 电子邮件验证的回应：
func isValidEmail(testStr:String) -> Bool
let emailRegEx = "^(?:(?:(?:(?: )*(?:(?:(?:\\t| )*\\r\\n)?(?:\\t| )+))+(?: )*)|(?: )+)?(?:(?:(?:[-A-Za-z0-9!#$%&’*+/=?^_'|~]+(?:\\.[-A-Za-z0-9!#$%&’*+/=?^_'|~]+)*)|(?:\"(?:(?:(?:(?: )*(?:(?:[!#-Z^-~]|\\[|\\])|(?:\\\\(?:\\t|[ -~]))))+(?: )*)|(?: )+)\"))(?:@)(?:(?:(?:[A-Za-z0-9](?:[-A-Za-z0-9]0,61[A-Za-z0-9])?)(?:\\.[A-Za-z0-9](?:[-A-Za-z0-9]0,61[A-Za-z0-9])?)*)|(?:\\[(?:(?:(?:(?:(?:[0-9]|(?:[1-9][0-9])|(?:1[0-9][0-9])|(?:2[0-4][0-9])|(?:25[0-5]))\\.)3(?:[0-9]|(?:[1-9][0-9])|(?:1[0-9][0-9])|(?:2[0-4][0-9])|(?:25[0-5]))))|(?:(?:(?: )*[!-Z^-~])*(?: )*)|(?:[Vv][0-9A-Fa-f]+\\.[-A-Za-z0-9._~!$&'()*+,;=:]+))\\])))(?:(?:(?:(?: )*(?:(?:(?:\\t| )*\\r\\n)?(?:\\t| )+))+(?: )*)|(?: )+)?$"
let emailTest = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
let result = emailTest.evaluate(with: testStr)
return result
【讨论】：
【参考方案9】：电话正则表达式仅适用于 ّIran 电话号码
func isValidPhone(phone: String) -> Bool
let PHONE_REGEX = "^09[0-9'@s]9,9$"
let phoneTest = NSPredicate(format: "SELF MATCHES %@", PHONE_REGEX)
let result = phoneTest.evaluate(with: phone)
return result
【讨论】：
【参考方案10】：为 Swift 3 更新
extension String
var isPhoneNumber: Bool
do
let detector = try NSDataDetector(types: NSTextCheckingResult.CheckingType.phoneNumber.rawValue)
let matches = detector.matches(in: self, options: [], range: NSMakeRange(0, self.characters.count))
if let res = matches.first
return res.resultType == .phoneNumber && res.range.location == 0 && res.range.length == self.characters.count
else
return false
catch
return false
【讨论】：
【参考方案11】：您可以创建单独的类进行验证，如下所示：
enum AIValidationRule: Int
case
EmptyCheck,
MinMaxLength,
FixedLength,
EmailCheck,
UpperCase,
LowerCase,
SpecialCharacter,
DigitCheck,
WhiteSpaces,
None
let ValidationManager = AIValidationManager.sharedManager
func validateTextField(txtField:AITextField, forRule rule:AIValidationRule, withMinimumChar minChar:Int, andMaximumChar maxChar:Int) -> (isValid:Bool, errMessage:String, txtFieldWhichFailedValidation:AITextField)?
switch rule
case .EmptyCheck:
return (txtField.text?.characters.count == 0) ? (false,"Please enter \(txtField.placeholder!.lowercased())",txtField) : nil
case .MinMaxLength:
return (txtField.text!.characters.count < minChar || txtField.text!.characters.count > maxChar) ? (false,"\(txtField.placeholder!) should be of \(minChar) to \(maxChar) characters",txtField) : nil
case .FixedLength:
return (txtField.text!.characters.count != minChar) ? (false,"\(txtField.placeholder!) should be of \(minChar) characters",txtField) : nil
case .EmailCheck:
return (!(txtField.text?.isValidEmail())!) ? (false,"Please enter valid email",txtField) : nil
case .UpperCase:
return ((txtField.text! as NSString).rangeOfCharacter(from: NSCharacterSet.uppercaseLetters).location == NSNotFound) ? (false,"\(txtField.placeholder!) should contain atleast one uppercase letter",txtField) : nil
case .LowerCase:
return ((txtField.text! as NSString).rangeOfCharacter(from: NSCharacterSet.lowercaseLetters).location == NSNotFound) ? (false,"\(txtField.placeholder!) should contain atleast one lowercase letter",txtField) : nil
case .SpecialCharacter:
let symbolCharacterSet = NSMutableCharacterSet.symbol()
symbolCharacterSet.formUnion(with: NSCharacterSet.punctuationCharacters)
return ((txtField.text! as NSString).rangeOfCharacter(from: symbolCharacterSet as CharacterSet).location == NSNotFound) ? (false,"\(txtField.placeholder!) should contain atleast one special letter",txtField) : nil
case .DigitCheck:
return ((txtField.text! as NSString).rangeOfCharacter(from: NSCharacterSet(charactersIn: "0123456789") as CharacterSet).location == NSNotFound) ? (false,"\(txtField.placeholder!) should contain atleast one digit letter",txtField) : nil
case .WhiteSpaces:
return (txtField.text!.containsAdjacentSpaces() || txtField.text!.isLastCharcterAWhiteSpace()) ? (false,"\(txtField.placeholder!) seems to be invalid",txtField) : nil
case .None:
return nil
func validateTextField(txtField:AITextField, forRules rules:[AIValidationRule]) -> (isValid:Bool, errMessage:String, txtFieldWhichFailedValidation:AITextField)?
return validateTextField(txtField: txtField, forRules: rules, withMinimumChar: 0, andMaximumChar: 0)
func validateTextField(txtField:AITextField, forRules rules:[AIValidationRule], withMinimumChar minChar:Int, andMaximumChar maxChar:Int) -> (isValid:Bool, errMessage:String, txtFieldWhichFailedValidation:AITextField)?
var strMessage:String = ""
for eachRule in rules
if let result = validateTextField(txtField: txtField, forRule: eachRule, withMinimumChar: minChar, andMaximumChar: maxChar)
if(eachRule == AIValidationRule.EmptyCheck)
return result
else
strMessage += "\(strMessage.characters.count == 0 ? "" : "\n\n") \(result.errMessage)"
return strMessage.characters.count > 0 ? (false,strMessage,txtField) : nil
【讨论】：
【参考方案12】：使用 Swift 3
func validate(value: String) -> Bool
let PHONE_REGEX = "^\\d3-\\d3-\\d4$"
let phoneTest = NSPredicate(format: "SELF MATCHES %@", PHONE_REGEX)
let result = phoneTest.evaluate(with: value)
return result
【讨论】：
【参考方案13】：斯威夫特 3 验证电子邮件
class func validateEmail(email: String) -> Bool
let emailRegex = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,6"
return NSPredicate(format: "SELF MATCHES %@", emailRegex).evaluate(with: email)
电话号码验证
class func validatePhoneNumber(value: String) -> Bool
let PHONE_REGEX = "^\\d3-\\d3-\\d4$"
let phoneTest = NSPredicate(format: "SELF MATCHES %@", PHONE_REGEX)
let result = phoneTest.evaluate(with: value)
return result
【讨论】：
一个非常好的电话号码被拒绝了。【参考方案14】：适用于 Swift 3.0 及更高版本
var isPhoneNumber: Bool
let allowedCharacters = CharacterSet(charactersIn: "+0123456789").inverted
let inputString = components(separatedBy: allowedCharacters)
let filtered = inputString.joined(separator: "")
return self == filtered
【讨论】：
什么是components？【参考方案15】：
为 Swift 更新：
以下代码用于电子邮件、姓名、手机和密码验证；
// Name validation
func isValidName(_ nameString: String) -> Bool
var returnValue = true
let mobileRegEx = "[A-Za-z]2" // "^[A-Z0-9a-z.-_]5$"
do
let regex = try NSRegularExpression(pattern: mobileRegEx)
let nsString = nameString as NSString
let results = regex.matches(in: nameString, range: NSRange(location: 0, length: nsString.length))
if results.count == 0
returnValue = false
catch let error as NSError
print("invalid regex: \(error.localizedDescription)")
returnValue = false
return returnValue
// password validation
func isValidPassword(_ PasswordString: String) -> Bool
var returnValue = true
let mobileRegEx = "[A-Za-z0-9.-_@#$!%&*]5,15$" // "^[A-Z0-9a-z.-_]5$"
do
let regex = try NSRegularExpression(pattern: mobileRegEx)
let nsString = PasswordString as NSString
let results = regex.matches(in: PasswordString, range: NSRange(location: 0, length: nsString.length))
if results.count == 0
returnValue = false
catch let error as NSError
print("invalid regex: \(error.localizedDescription)")
returnValue = false
return returnValue
// email validaton
func isValidEmailAddress(_ emailAddressString: String) -> Bool
var returnValue = true
let emailRegEx = "[A-Z0-9a-z.-_]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,3"
do
let regex = try NSRegularExpression(pattern: emailRegEx)
let nsString = emailAddressString as NSString
let results = regex.matches(in: emailAddressString, range: NSRange(location: 0, length: nsString.length))
if results.count == 0
returnValue = false
catch let error as NSError
print("invalid regex: \(error.localizedDescription)")
returnValue = false
return returnValue
// mobile no. validation
func isValidPhoneNumber(_ phoneNumberString: String) -> Bool
var returnValue = true
// let mobileRegEx = "^[789][0-9]9,11$"
let mobileRegEx = "^[0-9]10$"
do
let regex = try NSRegularExpression(pattern: mobileRegEx)
let nsString = phoneNumberString as NSString
let results = regex.matches(in: phoneNumberString, range: NSRange(location: 0, length: nsString.length))
if results.count == 0
returnValue = false
catch let error as NSError
print("invalid regex: \(error.localizedDescription)")
returnValue = false
return returnValue
//如何使用？
let isFullNameValid = isValidName("ray")
if isFullNameValid
print("Valid name...")
else
print("Invalid name...")
【讨论】：
【参考方案16】：斯威夫特 4.1。
func isValidPhone(phone: String) -> Bool
let phoneRegex = "^[0-9]6,14$";
let valid = NSPredicate(format: "SELF MATCHES %@", phoneRegex).evaluate(with: phone)
return valid
func isValidEmail(candidate: String) -> Bool
let emailRegex = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,"
var valid = NSPredicate(format: "SELF MATCHES %@", emailRegex).evaluate(with: candidate)
if valid
valid = !candidate.contains("..")
return valid
【讨论】：
【参考方案17】：Swift 4.2 和 Xcode 10.1
//For mobile number validation
func isValidPhone(phone: String) -> Bool
let phoneRegex = "^((0091)|(\\+91)|0?)[6789]1\\d9$";
let valid = NSPredicate(format: "SELF MATCHES %@", phoneRegex).evaluate(with: phone)
return valid
//For email validation
func isValidEmail(candidate: String) -> Bool
let emailRegex = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,4"
var valid = NSPredicate(format: "SELF MATCHES %@", emailRegex).evaluate(with: candidate)
if valid
valid = !candidate.contains("..")
return valid
这样使用
//Button Action
@IBAction func onClickRegrBtn(_ sender: UIButton)
//Check net connection here
let networkReachability = Reachability.forInternetConnection()
let networkStatus:Int = (networkReachability?.currentReachabilityStatus())!.rawValue
if networkStatus == NotReachable.rawValue
let msg = SharedClass.sharedInstance.noNetMsg
SharedClass.sharedInstance.alert(view: self, title: "", message: msg)//Display alert message
else
let mobileTrimmedString = mobileNoTF.text?.trimmingCharacters(in: .whitespaces) //Trim white spaces
if mobileTrimmedString != ""
if isValidPhone(phone: mobileTrimmedString!) == false
SharedClass.sharedInstance.alert(view: self, title: "", message: "Please enter valid mobile number")
else
UserDefaults.standard.set(mobileTrimmedString, forKey: "mobile") //setObject
sendMobileNumber()//Call function...
else
mobileNoTF.text = ""
//Call alert function
SharedClass.sharedInstance.alert(view: self, title: "", message: "Please enter mobile number")
【讨论】：
【参考方案18】：Swift 4+
您可以使用简化的regex "^[6-9]\\d9$"
^ #Match the beginning of the string
[6-9] #Match a 6, 7, 8 or 9
\\d #Match a digit (0-9 and anything else that is a "digit" in the regex engine)
9 #Repeat the previous "\d" 9 times (9 digits)
$ #Match the end of the string
From Reference
印度 10 位移动验证（可以以 6、7、8、9 开头）-
extension String
var isValidContact: Bool
let phoneNumberRegex = "^[6-9]\\d9$"
let phoneTest = NSPredicate(format: "SELF MATCHES %@", phoneNumberRegex)
let isValidPhone = phoneTest.evaluate(with: self)
return isValidPhone
用法：-
print("9292929292".isValidContact)//true
print("5454545454".isValidContact)//false
邮箱验证可以查看this
【讨论】：
电话号码验证不起作用我尝试使用“7982391667” @DilipTiwariprint("7982391667".isValidContact) returns true 工作正常
不，兄弟它不工作，你能分享你如何使用文本字段【参考方案19】：
“验证电子邮件”-Swift 4 的解决方案： 创建这个类：
import Foundation
public class EmailAddressValidator
public init()
public func validateEmailAddress(_ email: String) -> Bool
let emailTest = NSPredicate(format: "SELF MATCHES %@", String.emailValidationRegEx)
return emailTest.evaluate(with: email)
private extension String
static let emailValidationRegEx = "(?:[\\pL0-9!#$%\\&'*+/=?\\^_`|~-]+(?:\\.[\\pL0-9!#$%\\&'*+/=?\\^_`|" +
"~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\" +
"x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[\\pL0-9](?:[a-" +
"z0-9-]*[\\pL0-9])?\\.)+[\\pL0-9](?:[\\pL0-9-]*[\\pL0-9])?|\\[(?:(?:25[0-5" +
"]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.)3(?:25[0-5]|2[0-4][0-9]|[01]?[0-" +
"9][0-9]?|[\\pL0-9-]*[\\pL0-9]:(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21" +
"-\\x5a\\x53-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])+)\\])"
并像这样使用它：
let validator = EmailAddressValidator()
let isValid = validator.validateEmailAddress("testmail@testmail.com")
【讨论】：
【参考方案20】：斯威夫特 4 和斯威夫特 5：
func isValidPhone(phone: String) -> Bool
let phoneRegex = "^[0-9+]0,1+[0-9]5,16$"
let phoneTest = NSPredicate(format: "SELF MATCHES %@", phoneRegex)
return phoneTest.evaluate(with: phone)
func isValidEmail(email: String) -> Bool
let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]2,64"
let emailTest = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
return emailTest.evaluate(with: email)
+1994423565 - 有效 ++1994423565 - 无效 01994423565 - 有效 001994423565 - 有效 something@example.com - 有效 something@.com - 无效
【讨论】：
123456 是一个有效数字。为什么？
@Hemang 这很简单，因为在正则表达式中为数字，这个“^[0-9+]0,1”部分是 ^ - 仅检查字符串开始 [0-9+] - 字符我们是允许的（所以允许所有数字和 + 号）0,1 - 我们正在寻找的允许字符数，所以它可以为零，所以加号不是必需的......实际上我什至会更新这个答案通过电话的下一个正则表达式： "^[+]?+[0-9]5,16$" 所以我们只检查字符串开头是否有加号，？这里与 0,1 相同【参考方案21】：
iksnae 很棒的答案的更新版本。它不是正则表达式，但我认为它是验证所有国家/地区电话号码的最佳解决方案，因为它足够聪明地知道该国家/地区的电话分机代码是否有效。
extension String
public var validPhoneNumber: Bool
let types: NSTextCheckingResult.CheckingType = [.phoneNumber]
guard let detector = try? NSDataDetector(types: types.rawValue) else return false
if let match = detector.matches(in: self, options: [], range: NSMakeRange(0, self.count)).first?.phoneNumber
return match == self
else
return false
print("\("+96 (123) 456-0990".validPhoneNumber)") //returns false, smart enough to know if country phone code is valid as well ?
print("\("+994 (123) 456-0990".validPhoneNumber)") //returns true because +994 country code is an actual country phone code
print("\("(123) 456-0990".validPhoneNumber)") //returns true
print("\("123-456-0990".validPhoneNumber)") //returns true
print("\("1234560990".validPhoneNumber)") //returns true
【讨论】：
嗨，哪个输入不准确？ NSDataDetector 在电话号码方面不准确，大多数情况下它会为无效号码返回 true 感谢指正。那么你认为哪一个是最好的答案呢？ ?以上是关于Swift 中的电子邮件和电话验证的主要内容，如果未能解决你的问题，请参考以下文章
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