+(BOOL)ValidateEmail:(NSString*)email {
? ? NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
? ? NSPredicate*emailTest = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@", emailRegex];
? ? return[emailTestevaluateWithObject:email];
}
