检查有效的电话号码

Question

我有一个输入电话号码的文本字段，用户必须按确定按钮。

然后我编写了一些函数来检查输入的数字是有效数字还是 10 位数字。而且我不想添加国家代码。我有单独的。

但是当我按下 OK 按钮时，它会给我 uialert - 包括我自己的号码在内的所有号码的错误号码。我不知道我错过了什么代码？

    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()
        }
  }

更新：

 @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

试试这个。

对 String 进行扩展。

斯威夫特 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
        }
    }
}

旧 Swift 版本

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
        }
    }
}

用法：

override func viewWillAppear(animated: Bool) {

//Sample check
let phoneString = "8888888888"

let phoneNumberValidator = phoneString.isPhoneNumber
print(phoneNumberValidator)

}

Answer 2

斯威夫特 3

对于那些想要phone number to have a minimum of 10 characters 的人，请使用以下代码（修改后的@Alvin George 代码）

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
        }
    }
} 

用法

ooverride func viewDidLoad() {
    super.viewDidLoad()

    //Example
    let phoneNumberString = "8500969696"

    let phoneNumberValidation = phoneNumberString.isPhoneNumber
    print(phoneNumberValidation) 
    // Prints: true

}

Answer 3

试试这个印度 10 位数手机号码验证

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

修改了 Swift 4 的 @Alvin George 代码，该代码也只接受 10 位电话号码：

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

轻松验证印度 10 位数手机号码

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

修改@A.G 的答案以更新到 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
        }
    }
}