iphone - 在 iPhone 中验证电子邮件

Question

我实现了以下代码。它接受任何类型的邮件 ID。示例:abc@xyz.com。但我想接受完美的邮件 ID。例如:abc@gmail.com、abc@yahoo.com。谁能指导如何做到这一点。

- (BOOL) validateEmail: (NSString *) candidate {
    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"; 
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex]; 

    return [emailTest evaluateWithObject:candidate];
}

提前致谢

Answer 1

试试这段代码:

- (BOOL) validateEmail: (NSString *) candidate {
    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"; 
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex]; 

    BOOL result = [emailTest evaluateWithObject:candidate];
    if(result)
    {
        NSSet *domains= [NSSet setWithObjects:@"yahoo.com",@"yahoo.co.in",@"yahoo.co.au",@"yahoo.co.nz",@"gmail.com",@"rediffmail.com",.........., nil];
        NSArray *arrayObjects = [domains allObjects];
        BOOL results = NO;
              for(int i = 0;i<[arrayObjects count];i++)
              {
                  if([emailTest rangeOfString:[arrayObjects objectAtIndex:i]].location != NSNotFound)
                  {
                      results = YES;
                      break;
                  }
              }
          return results;
    }
    else
    {
        return NO;
    } 
    return [emailTest evaluateWithObject:candidate];
}

希望一切都好

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