NSTextCheckingResult for phone numbers

Question

Can someone tell me why this evaluates every time to true?!

The input is: jkhkjhkj. It doesn\'t matter what I type into the phone field. It\'s

Answer 1

You are using the class incorrectly. NSTextCheckingResult is the result of a text checking that is done by NSDataDetector or NSRegularExpression. Use NSDataDetector instead:

NSError *error = NULL;
NSDataDetector *detector = [NSDataDetector dataDetectorWithTypes:NSTextCheckingTypePhoneNumber error:&error];

NSRange inputRange = NSMakeRange(0, [phone length]);
NSArray *matches = [detector matchesInString:phone options:0 range:inputRange];

// no match at all
if ([matches count] == 0) {
    return NO;
}

// found match but we need to check if it matched the whole string
NSTextCheckingResult *result = (NSTextCheckingResult *)[matches objectAtIndex:0];

if ([result resultType] == NSTextCheckingTypePhoneNumber && result.range.location == inputRange.location && result.range.length == inputRange.length) {
    // it matched the whole string
    return YES;
}
else {
    // it only matched partial string
    return NO;
}