iOS 身份证验证

- （void）onClickButton:(id) sender{

if (tmp_txt.text.length == 15 || tmp_txt.text.length == 18) {                

                NSString *emailRegex = @"^[0-9]*$";

                NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];

                bool sfzNo = [emailTest evaluateWithObject:[tmp_txt.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]];

                

                if (tmp_txt.text.length == 15) {

                    if (!sfzNo) {

                        [self HUDShow:@"请输入正确的身份证号" delay:1.5];                       

                        return NO;

                    }

                }

                else if (tmp_txt.text.length == 18) {                    

                    bool sfz18NO = [Global checkIdentityCardNo:tmp_txt.text];

                    if (!sfz18NO) {

                        [self HUDShow:@"请输入正确的身份证号" delay:1.5];                       

                        return NO;

                    }

                }

            }else{

                [self HUDShow:@"请输入正确的身份证号" delay:1.5];               

                return NO;

            }

}







#pragma mark - 身份证识别

+(BOOL)checkIdentityCardNo:(NSString*)cardNo

{

    if (cardNo.length != 18) {

        return  NO;

    }

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

    NSDictionary* checkCodeDic = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:@"1",@"0",@"X",@"9",@"8",@"7",@"6",@"5",@"4",@"3",@"2", nil]  forKeys:[NSArray arrayWithObjects:@"0",@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10", nil]];

    

    NSScanner* scan = [NSScanner scannerWithString:[cardNo substringToIndex:17]];

    

    int val;

    BOOL isNum = [scan scanInt:&val] && [scan isAtEnd];

    if (!isNum) {

        return NO;

    }

    int sumValue = 0;

    

    for (int i =0; i<17; i++) {

        sumValue+=[[cardNo substringWithRange:NSMakeRange(i , 1) ] intValue]* [[codeArray objectAtIndex:i] intValue];

    }

    

    NSString* strlast = [checkCodeDic objectForKey:[NSString stringWithFormat:@"%d",sumValue%11]];

    

    if ([strlast isEqualToString: [[cardNo substringWithRange:NSMakeRange(17, 1)]uppercaseString]]) {

        return YES;

    }

    return  NO;

}