iOS - Card Identification 银行卡号识别

1、CardIO 识别

框架 GitHub 下载地址

配置

1、把框架整个拉进自己的工程，然后在 TARGETS => Build Phases => Link Binary With Libraries 里边分别加入下面这几个框架。

Accelerate.framework
MobileCoreServices.framework
CoreMedia.framework
AudioToolbox.framework
AVFoundation.framework

2、在TARGETS => Build Settings => Other Linker Flags 中添加 -ObjC 和 -lc++ 。



3、在 iOS8 + 系统中使用相机需要在 Info.plist 中添加 Privacy - Camera Usage Description，并设置其值。



4、在我们需要调用的文件中导入

// 导入头文件
#import "CardIO.h"
#import "CardIOPaymentViewControllerDelegate.h

// 遵守协议
<CardIOPaymentViewControllerDelegate>

开始扫描银行卡

[CardIOUtilities preload];

CardIOPaymentViewController *scanViewController = [[CardIOPaymentViewController alloc] initWithPaymentDelegate:self];

[self presentViewController:scanViewController animated:YES completion:nil];

取消扫描

// CardIOPaymentViewControllerDelegate 协议方法
- (void)userDidCancelPaymentViewController:(CardIOPaymentViewController *)paymentViewController {

[[[UIAlertView alloc] initWithTitle:@"User cancelled sca"
message:nil
delegate:nil
cancelButtonTitle:@"确定" otherButtonTitles:nil, nil] show];

[self dismissViewControllerAnimated:YES completion:nil];
}

扫描完成

// CardIOPaymentViewControllerDelegate 协议方法
- (void)userDidProvideCreditCardInfo:(CardIOCreditCardInfo *)cardInfo inPaymentViewController:(CardIOPaymentViewController *)paymentViewController {

// 获取扫描结果

// cardNumber 是扫描的银行卡号，显示的是完整号码，而 redactedCardNumber 只显示银行卡后四位，前面的用 * 代替了，返回的银行卡号都没有空格

NSString *redactedCardNumber = cardInfo.cardNumber;     // 卡号
NSUInteger expiryMonth = cardInfo.expiryMonth;          // 月
NSUInteger expiryYear = cardInfo.expiryYear;            // 年
NSString *cvv = cardInfo.cvv;                           // CVV 码

// 显示扫描结果
NSString *msg = [NSString stringWithFormat:@"Number: %@\n\n expiry: %02lu/%lu\n\n cvv: %@", [self dealCardNumber:redactedCardNumber], expiryMonth, expiryYear, cvv];
[[[UIAlertView alloc] initWithTitle:@"Received card info" message:msg  delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil] show];

[self dismissViewControllerAnimated:YES completion:nil];
}

// 对银行卡号进行每隔四位加空格处理，自定义方法
- (NSString *)dealCardNumber:(NSString *)cardNumber {

NSString *strTem = [cardNumber stringByReplacingOccurrencesOfString:@" " withString:@""];
NSString *strTem2 = @"";

if (strTem.length % 4 == 0) {

NSUInteger count = strTem.length / 4;
for (int i = 0; i < count; i++) {
NSString *str = [strTem substringWithRange:NSMakeRange(i * 4, 4)];
strTem2 = [strTem2 stringByAppendingString:[NSString stringWithFormat:@"%@ ", str]];
}

} else {

NSUInteger count = strTem.length / 4;
for (int j = 0; j <= count; j++) {

if (j == count) {
NSString *str = [strTem substringWithRange:NSMakeRange(j * 4, strTem.length % 4)];
strTem2 = [strTem2 stringByAppendingString:[NSString stringWithFormat:@"%@ ", str]];
} else {
NSString *str = [strTem substringWithRange:NSMakeRange(j * 4, 4)];
strTem2 = [strTem2 stringByAppendingString:[NSString stringWithFormat:@"%@ ", str]];
}
}
}

return strTem2;
}

效果