String to Phone Number format on iOS

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)    }}

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...

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]);}