Validate phone number ios

Question

I need to validate an international phone number.

I know its difficult to validate an international phone number, so I'm going to keep it simple:

+ or 00 then 6-14 numbers

My current code using a regex isn't working for some reason which I can't work out. It just says that it cannot open the regex and crashes.

Here is my current code:

NSString *phoneRegex = @"^[\+(00)][0-9]{6,14}$"; NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", phoneRegex];  BOOL phoneValidates = [phoneTest evaluateWithObject:phoneNumber]; 

Where am I going wrong?

Thanks!

Answer 1

NSString *phoneRegex = @"^((\\+)|(00))[0-9]{6,14}$"; 

This way is bit better. Your code will work as well if you escape the "\".

Answer 2

Copy & Paste method to validate phone numbers:

- (BOOL)validatePhone:(NSString *)phoneNumber {     NSString *phoneRegex = @"^((\\+)|(00))[0-9]{6,14}$";     NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", phoneRegex];      return [phoneTest evaluateWithObject:phoneNumber]; } 

or Open source Library for validating Phone Numbers

https://github.com/iziz/libPhoneNumber-iOS