銀行卡號自動識別

1、CardIO識別

1.1 、CaedIO SDK下載

下載地址

1.2、使用方法

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>

1.3、主要方法

1、開始掃描銀行卡

[CardIOUtilities preload];

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

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

2、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];
}

3、完成掃描

 // 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];
    }

4、銀行卡信息處理

// 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;
    }