檢查有效的電話號碼

Question

我有一個文本字段用於輸入電話號碼，用戶必須按OK按鈕。

然後我寫一些函數來檢查輸入的數字是有效數字還是10位數字。我不想添加國家代碼。我分開了。

但是，當我按OK按鈕它給我uialert - 錯誤的號碼，包括我自己的號碼在內的所有號碼。我不知道我錯過了什麼代碼？

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() 
     } 
    } 

更新時間：

@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

試試這個。

對String進行擴展。

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: 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 
     } 
    } 
} 

舊版夫特版本

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

夫特3

對於那些希望使用phone number to have a minimum of 10 characters誰下面的代碼（由@Alvin喬治代碼）

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 
     } 
    } 
} 

使用

ooverride func viewDidLoad() { 
    super.viewDidLoad() 

    //Example 
    let phoneNumberString = "8500969696" 

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

}