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