String to Phone Number format on iOS

Question

In my app, I have a string like:

"3022513240"

I want to convert this like:

(302)-251-3240

How can I solve this?

Answer 1

Here is a Swift extension that formats strings into phone numbers for 10 digit numbers.

extension String {    
    public func toPhoneNumber() -> String {
        return stringByReplacingOccurrencesOfString("(\\d{3})(\\d{3})(\\d+)", withString: "($1) $2-$3", options: .RegularExpressionSearch, range: nil)
    }
}

For example:

let number = "1234567890"
let phone = number.toPhoneNumber()
print(phone)
// (123) 456-7890

Updated to Swift 3.0:

extension String {
    public func toPhoneNumber() -> String {
        return self.replacingOccurrences(of: "(\\d{3})(\\d{3})(\\d+)", with: "($1) $2-$3", options: .regularExpression, range: nil)
    }
}

Answer 2

I would do this way:

Example:

 NSMutableString *stringts = [NSMutableString stringWithString:self.ts.text];
 [stringts insertString:@"(" atIndex:0];
 [stringts insertString:@")" atIndex:4];
 [stringts insertString:@"-" atIndex:5];
 [stringts insertString:@"-" atIndex:9];
 self.ts.text = stringts;

Hope this helps...

Answer 3

Swift 4.2

extension String {
public func toPhoneNumber() -> String {
    return self.replacingOccurrences(of: "(\\d{3})(\\d{3})(\\d+)", with: "$1-$2-$3", options: .regularExpression, range: nil)
}}

Result

Answer 4

Swift 4.2

Handles 10 and 11 digit phone numbers that may or may not already have formatting or non-digit characters in the string.

Will handle:

• 1234567890, 12345678901, 123 456 7890, 123-456-7890, (123) 456-7890, 1-234-567-8901

Result:

• (999)-999-9999
• 1(999)-999-9999

Code:

extension String {

    /// Handles 10 or 11 digit phone numbers
    ///
    /// - Returns: formatted phone number or original value
    public func toPhoneNumber() -> String {
        let digits = self.digitsOnly
        if digits.count == 10 {
            return digits.replacingOccurrences(of: "(\\d{3})(\\d{3})(\\d+)", with: "($1)-$2-$3", options: .regularExpression, range: nil)
        }
        else if digits.count == 11 {
            return digits.replacingOccurrences(of: "(\\d{1})(\\d{3})(\\d{3})(\\d+)", with: "$1($2)-$3-$4", options: .regularExpression, range: nil)
        }
        else {
            return self
        }
    }

}

extension StringProtocol {

    /// Returns the string with only [0-9], all other characters are filtered out
    var digitsOnly: String {
        return String(filter(("0"..."9").contains))
    }

}

Example:

let num = "1234567890"
let formatted = num.toPhoneNumber()
// Formatted is "(123)-456-7890"

Answer 5

You can use this way

NSError *aError = nil;
NBPhoneNumber *myNumber1 = [phoneUtil parse:@"6766077303" defaultRegion:@"AT" error:&aError];
if (aError == nil)
{
    NSLog(@"isValidPhoneNumber ? [%@]", [phoneUtil isValidNumber:myNumber1] ? @"YES":@"NO");
    NSLog(@"E164          : %@", [phoneUtil format:myNumber1 numberFormat:NBEPhoneNumberFormatE164]);
    NSLog(@"INTERNATIONAL : %@", [phoneUtil format:myNumber1 numberFormat:NBEPhoneNumberFormatINTERNATIONAL]);
    NSLog(@"NATIONAL      : %@", [phoneUtil format:myNumber1 numberFormat:NBEPhoneNumberFormatNATIONAL]);
    NSLog(@"RFC3966       : %@", [phoneUtil format:myNumber1 numberFormat:NBEPhoneNumberFormatRFC3966]);
}
else
{
    NSLog(@"Error : %@", [aError localizedDescription]);
}

Answer 6

You may use a regex like (\d{3})(\d{3})(\d{4}) and replace input matching the pattern with ($1)-$2-$3

Answer 7

You could use RMPhoneFormat library for formatting phone numbers. The formatting should replicate what you would see in the Contacts app for the same phone number.

Answer 8

This is the simple and easy

-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
   if (string.length) {
       if (textField.text.length<=13) {
           if (textField.text.length==3) {
               NSString *tempStr=[NSString stringWithFormat:@"(%@)- ",textField.text];
               textField.text=tempStr;
           } else if (textField.text.length==8) {
               NSString *tempStr=[NSString stringWithFormat:@"%@-",textField.text];
               textField.text=tempStr;
           }
       } else {
           return NO;
       }
   }
   return YES;
}

Answer 9

Lookup RMPhoneFormat, its great I used it.

Answer 10

I used the SHSPhoneNumberFormatter to do this so I don't have to change the type or subclass my UITextField

To set it up:

let phoneNumberFormatter = SHSPhoneNumberFormatter()
phoneNumberFormatter.setDefaultOutputPattern("(###) ###-####")

Listen for the UITextFieldTextDidChangeNotification and run the following:

let phoneDict = phoneNumberFormatter.valuesForString(phoneTextField.text) 
phoneTextField.text = phoneDict["text"] as? String

Answer 11

Here is a code to convert string to phone number format

Swift 3

func PhoneNumberFormate( str : NSMutableString)->String{
        str.insert("(", at: 0)
        str.insert(")", at: 4)
        str.insert("-", at: 8)
        return str as String
    }

to use

let nsMutableString = NSMutableString(string: "3022513240")
let strModify = self.PhoneNumberFormate(str: nsMutableString)

Answer 12

NSString* formatPhoneNumber(NSString* phoneNumber, NSString *mask) {
    // Remove any non-numeric characters from the phone number string
    NSString* strippedNumber = [[phoneNumber componentsSeparatedByCharactersInSet:
                                [[NSCharacterSet decimalDigitCharacterSet] invertedSet]]
                               componentsJoinedByString:@""];
    // Check if the phone number is the correct length
    if (strippedNumber.length != [mask componentsSeparatedByString:@"X"].count) {
        return phoneNumber;
    }
    // Initialize a string for the formatted phone number
    NSString* formattedNumber = mask;
    int i = 0;
    // Iterate through the mask, replacing "X" with corresponding digits
    for (NSUInteger j = 0; j < formattedNumber.length; j++) {
        if ([formattedNumber characterAtIndex:j] == 'X') {
            formattedNumber = [formattedNumber stringByReplacingCharactersInRange:NSMakeRange(j, 1) withString:[strippedNumber substringWithRange:NSMakeRange(i, 1)]];
            i++;
        }
    }
    return formattedNumber;
}