Answer by Kiran Bhoraniya for URL Validation function improving

-(BOOL)validateUrl{//    NSString *urlRegEx =  @"((?:http|https)://)?(www\\.)[\\w\\d\\-_]+\\.\\w{2,3}(\\.\\w{2})?(/(?<=/)(?:[\\w\\d\\-./_]+)?)?";    NSString *urlRegEx =  @"((?:http|https)://)?(www\\.)[\\w\\d\\-_]+\\.\\w{2,3}(\\.\\w{2})?(/(?<=/)(?:[\\w\\d\\-./_]+)?)?";    NSPredicate *urlTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", urlRegEx];    if ([urlTest evaluateWithObject: self] == YES) {        NSLog(@"URL is valid!");    } else {        NSLog(@"URL is not valid!");    }    return [urlTest evaluateWithObject:self];}