+ (BOOL)isMobileNumber:(NSString *)mobileNumber

{

  //手机号以13， 15，18开头，八个 \d 数字字符

  NSString *phoneRegex = @"^((13[0-9])|(15[^4,\\D])|(18[0,0-9]))\\d{8}$";

  NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];

  return [phoneTest evaluateWithObject:mobileNumber]; 

}

/**

 * 身份证号

 * @param NSString 身份证号字符串

 * @return 是否身份证号

 * d{14} 14位数字

 */

+ (BOOL) validateIdentityCard: (NSString *)identityCard

{

   BOOL flag;

  if (identityCard.length <= 0) {

    flag = NO;

    return flag;

  }

  NSString *regex2 = @"^(\\d{14}|\\d{17})(\\d|[xX])$";

  NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];

  return [identityCardPredicate evaluateWithObject:identityCard];

}

/**

 * 精确验证身份证号

 * @param IdentityNum 身份证号 

 * @return 是否是身份证号

 */

+(BOOL)isValidWithIdentityNum:(NSString *)IdentityNum{

  //先正则匹配

  //......

  

  //计算最后一位余数

  NSArray *arrExp = [NSArray arrayWithObjects:@"7", @"9", @"10", @"5", @"8", @"4", @"2", @"1", @"6", @"3", @"7", @"9", @"10", @"5", @"8", @"4", @"2", nil];

  NSArray *arrVaild = [NSArray arrayWithObjects:@"1", @"0", @"X", @"9", @"8", @"7", @"6", @"5", @"4", @"3", @"2", nil];

  

  long sum = 0;

  for (int i = 0; i < (IdentityNum.length -1); i++) {

    NSString * str = [IdentityNum substringWithRange:NSMakeRange(i, 1)];

    sum += [str intValue] * [arrExp[i] intValue];

  }

  

  int idx = (sum % 11);

  if ([arrVaild[idx] isEqualToString:[IdentityNum substringWithRange:NSMakeRange(IdentityNum.length - 1, 1)]]) {

    return YES;

  }else{

    return NO;

  }

  return YES;

}

/**

 * 验证邮箱

 *

 * @param email 邮箱字符串

 *

 * @return 是否邮箱

 *

 * [A-Z0-9a-z] 表示 A-Z 与 0-9 与 a-z 任意一个

 * {2,4}    表示 字符位大于2个，小于4个

 */

+ (BOOL) validateEmail:(NSString *)email

{

  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:email];

}

/**

 * 用户名验证

 *

 * @param NSString 用户名字符串

 *

 * @return 是否用户名

 * {6,20} 6到20位

 */

+ (BOOL) validateUserName:(NSString *)name

{

  NSString *userNameRegex = @"^[A-Za-z0-9]{6,20}+$";

  NSPredicate *userNamePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",userNameRegex];

  BOOL B = [userNamePredicate evaluateWithObject:name];

  return B;

}

/**

 * 密码认证

 *

 * @param NSString 密码字符串

 *

 * @return 是否密码

 * {6,20} 6到20位

 */

+ (BOOL) validatePassword:(NSString *)passWord

{

  NSString *passWordRegex = @"^[a-zA-Z0-9]{6,20}+$";

  NSPredicate *passWordPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",passWordRegex];

  return [passWordPredicate evaluateWithObject:passWord];

}

/**

 * 验证昵称

 *

 * @param NSString 昵称字符串

 *

 * @return 是否昵称

 * {4,8} 4到8位

 */

+ (BOOL) validateNickname:(NSString *)nickname

{

  NSString *nicknameRegex = @"^[\u4e00-\u9fa5]{4,8}$";

  NSPredicate *passWordPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",nicknameRegex];

  return [passWordPredicate evaluateWithObject:nickname];

}

/**

 * 4位验证码

 *

 * @param verifyCode 验证码

 *

 * @return 是否是验证码

 */

+ (BOOL) validateVerifyCode:(NSString *)verifyCode

{

  BOOL flag;

  if (verifyCode.length <= 0) {

    flag = NO;

    return flag;

  }

  NSString *regex2 = @"^(\\d{4})$";

  NSPredicate *verifyCodePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];

  return [verifyCodePredicate evaluateWithObject:verifyCode];

}