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