iOS - Card Identification 銀行卡號識別

1、CardIO 識別

• 框架 GitHub 下載地址

• 配置

  • 1、把框架整個拉進自己的工程，然后在 TARGETS => Build Phases => Link Binary With Libraries 里邊分別加入下面這幾個框架。

    	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 + 系統中使用相機需要在 Info.plist 中添加 Privacy - Camera Usage Description，並設置其值。

    

  • 4、在我們需要調用的文件中導入

    	// 導入頭文件
    	#import "CardIO.h"
    	#import "CardIOPaymentViewControllerDelegate.h
    
    	// 遵守協議
    	<CardIOPaymentViewControllerDelegate>
    

• 開始掃描銀行卡

  	[CardIOUtilities preload];
  
  	CardIOPaymentViewController *scanViewController = [[CardIOPaymentViewController alloc] initWithPaymentDelegate:self];
  
  	[self presentViewController:scanViewController animated:YES completion:nil];
  

• 取消掃描

  	// CardIOPaymentViewControllerDelegate 協議方法
  	- (void)userDidCancelPaymentViewController:(CardIOPaymentViewController *)paymentViewController {
  	    
  		[[[UIAlertView alloc] initWithTitle:@"User cancelled sca" 
  		                            message:nil  
  		                           delegate:nil 
  		                  cancelButtonTitle:@"確定" otherButtonTitles:nil, nil] show];
  	    
  		[self dismissViewControllerAnimated:YES completion:nil];
  	}
  

• 掃描完成

  	// CardIOPaymentViewControllerDelegate 協議方法
  	- (void)userDidProvideCreditCardInfo:(CardIOCreditCardInfo *)cardInfo inPaymentViewController:(CardIOPaymentViewController *)paymentViewController {
  	    
  	    // 獲取掃描結果
  	    
  	    // cardNumber 是掃描的銀行卡號，顯示的是完整號碼，而 redactedCardNumber 只顯示銀行卡后四位，前面的用 * 代替了，返回的銀行卡號都沒有空格
  	
  	    NSString *redactedCardNumber = cardInfo.cardNumber;     // 卡號
  	    NSUInteger expiryMonth = cardInfo.expiryMonth;          // 月
  	    NSUInteger expiryYear = cardInfo.expiryYear;            // 年
  	    NSString *cvv = cardInfo.cvv;                           // CVV 碼
  	    
  	    // 顯示掃描結果
  	    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:@"確定" otherButtonTitles:nil, nil] show];
  	    
  	    [self dismissViewControllerAnimated:YES completion:nil];
  	}
  

  	// 對銀行卡號進行每隔四位加空格處理，自定義方法
  	- (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