Check the valid phone number - ios

Question

I have one text field for enter the phone number and user have to press OK button.
Then I write some function to check whether entered number is valid number or 10 digit number. And I don't want to add country code. That I have separately.
But when I press OK button its give me uialert - wrong number for all number including my own number. I don't know any code I missed?
func validate(value: String) -> Bool {
let PHONE_REGEX = "^\\d{3}-\\d{3}-\\d{4}$"
var phoneTest = NSPredicate(format: "SELF MATCHES %#", PHONE_REGEX)
var result = phoneTest.evaluateWithObject(value)
return result
}
#IBAction func confirmAction(sender: AnyObject) {
if validate(phoneNumber.text!)
{
print("Validate EmailID")
let phone = countryCode.text! + phoneNumber.text!
UserNetworkInterface().generateSms(phone, onCompletion: nil)
performSegueWithIdentifier("ConfirmSmsCode", sender: self)
}
else
{
print("invalide EmailID")
let alert = UIAlertView()
alert.title = "Message"
alert.message = "Enter Valid Contact Number"
alert.addButtonWithTitle("Ok")
alert.delegate = self
alert.show()
}
}
Updated :
#IBAction func confirmAction(sender: AnyObject) {
if let phoneNumberValidator = phoneNumber.isPhoneNumber
{
print("Validate EmailID")
let phone = countryCode.text! + phoneNumber.text!
UserNetworkInterface().generateSms(phone, onCompletion: nil)
performSegueWithIdentifier("ConfirmSmsCode", sender: self)
}
else
{
print("invalide EmailID")
let alert = UIAlertView()
alert.title = "Message"
alert.message = "Enter Valid Contact Number"
alert.addButtonWithTitle("Ok")
alert.delegate = self
alert.show()
phoneNumber.text = ""
}
// Number valid
}

Answer 1

Try this.
Make an extension to String.
Swift 4
extension String {
var isPhoneNumber: Bool {
do {
let detector = try NSDataDetector(types: NSTextCheckingResult.CheckingType.phoneNumber.rawValue)
let matches = detector.matches(in: self, options: [], range: NSRange(location: 0, length: self.count))
if let res = matches.first {
return res.resultType == .phoneNumber && res.range.location == 0 && res.range.length == self.count
} else {
return false
}
} catch {
return false
}
}
}
Older Swift Versions
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
}
}
}
Usage:
override func viewWillAppear(animated: Bool) {
//Sample check
let phoneString = "8888888888"
let phoneNumberValidator = phoneString.isPhoneNumber
print(phoneNumberValidator)
}

Answer 2

Swift 3
For those of you who would like the phone number to have a minimum of 10 characters use the below code (Amended #Alvin George code)
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 && self.characters.count == 10
} else {
return false
}
} catch {
return false
}
}
}
Usage
ooverride func viewDidLoad() {
super.viewDidLoad()
//Example
let phoneNumberString = "8500969696"
let phoneNumberValidation = phoneNumberString.isPhoneNumber
print(phoneNumberValidation)
// Prints: true
}

Answer 3

Try this for Indian 10 digit mobile number validation
var isValidMobileNo: Bool {
let PHONE_REGEX = "^[7-9][0-9]{9}$";
let phoneTest = NSPredicate(format: "SELF MATCHES %#", PHONE_REGEX)
let result = phoneTest.evaluate(with: self)
return result
}

Answer 4

Amended #Alvin George code for Swift 4 that also accepts only 10 digit phone numbers:
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.count))
if let res = matches.first {
return res.resultType == .phoneNumber && res.range.location == 0 && res.range.length == self.count && self.count == 10
} else {
return false
}
} catch {
return false
}
}
}

Answer 5

Easy validation for Indian 10 digit mobile number
func isValidPhone(testStr:String) -> Bool {
let phoneRegEx = "^[6-9]\\d{9}$"
var phoneNumber = NSPredicate(format:"SELF MATCHES %#", phoneRegEx)
return phoneNumber.evaluate(with: testStr)
}

Answer 6

Modifying #A.G's answer to update to Swift 5:
extension String {
func isValidPhone() -> Bool {
do {
let detector = try NSDataDetector(types: NSTextCheckingResult.CheckingType.phoneNumber.rawValue)
let matches = detector.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 false
}
} catch {
return false
}
}
}