# iOS开发之OCR光学识别储蓄卡以及信用卡

语言：zh-CN
原文：[iOS开发之OCR光学识别储蓄卡以及信用卡](<https://allluckly.cn/ocr/back>)
中文：[中文 HTML](<https://allluckly.cn/ocr/back>)
English: [English HTML](<https://allluckly.cn/en/journal/2015-12-07-ocr-for-debit-and-credit-cards-in-ios-development/>)
发布于: 2015-12-07T00:00:00+08:00
内容更新于: 2015-12-07T00:00:00+08:00
署名：[Bison](<https://allluckly.cn/about/>)

围绕扫描卡号的需求介绍 card.io SDK 的导入、链接参数、代理设置和识别回调，并给出 Objective-C 与 Swift 示例；正文说明此次选用的是信用卡识别方案。

原文署名 Bison，保留原发布时的内容。

**阅读前** 这是 2015–2017 年间的技术记录，本次整理未重新运行验证示例。原文注明 Xcode 7.1，并明确所选方案用于扫描信用卡。

> "iOS技术分享,iOS开发,iOS开发技巧,iOS开发博客" Bison

最近由于公司需要一个扫描银行卡获取卡号的功能，网上找了很多相关的资料，完全扫描银行卡  
 获取卡号信息的都是价格贵的不得了的，而且仅仅只是授权而已，在此咱退而求次，找到一个可  
 以扫描信用卡的第三方框架，给大家伙分享一下，只能扫描信用卡……o.0。  
 框架的名字叫`CardIO`  
 [下载地址](<https://github.com/AllLuckly/card.io-iOS-SDK>)  
 在这里主要给大家演示一下怎么集成的，各位看官可得注意咯！  
 我的xcode是7.1版本的，首先是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`  
 再在TARGETS—Build Settings—Other Linker Flags中添加`-ObjC`和`-lc++`

然后在我们需要调用的`VC`中导入头文件  
 `#import "CardIO.h"`  
 `#import "CardIOPaymentViewControllerDelegate.h"`  
 加上代理`CardIOPaymentViewControllerDelegate`

然后是实现的方法

## OC版

```css
- (void)viewDidLoad {
    [super viewDidLoad];

    [CardIOUtilities preload];
}

//开始调用扫描
- (IBAction)begin:(id)sender {

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

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


//取消扫描
- (void)userDidCancelPaymentViewController:(CardIOPaymentViewController *)scanViewController

{


    [scanViewController dismissViewControllerAnimated:YES completion:nil];

}

//扫描完成
-(void)userDidProvideCreditCardInfo:(CardIOCreditCardInfo *)info inPaymentViewController:(CardIOPaymentViewController *)scanViewController

{

    //扫描结果
    NSLog(@"Received card info. Number: %@, expiry: %02i/%i, cvv: %@.", info.redactedCardNumber, info.expiryMonth, info.expiryYear, info.cvv);

    [scanViewController dismissViewControllerAnimated:YES completion:nil];

}
```

## SWIFT版

```css
import UIKit

class ViewController: UIViewController, CardIOPaymentViewControllerDelegate {

@IBOutlet weak var resultLabel: UILabel!
override func viewDidLoad() {
    super.viewDidLoad()
    
    CardIOUtilities.preload()
}

//开始调用扫描
@IBAction func scanCard(sender: AnyObject) {
    let cardIOVC = CardIOPaymentViewController(paymentDelegate: self)
    cardIOVC.modalPresentationStyle = .FormSheet
    presentViewController(cardIOVC, animated: true, completion: nil)
}
//取消扫描
func userDidCancelPaymentViewController(paymentViewController: CardIOPaymentViewController!) {
    resultLabel.text = "user canceled"
    paymentViewController?.dismissViewControllerAnimated(true, completion: nil)
}
//扫描完成
func userDidProvideCreditCardInfo(cardInfo: CardIOCreditCardInfo!, inPaymentViewController paymentViewController: CardIOPaymentViewController!) {
    if let info = cardInfo {
        let str = NSString(format: "Received card info.\n Number: %@\n expiry: %02lu/%lu\n cvv: %@.", info.redactedCardNumber, info.expiryMonth, info.expiryYear, info.cvv)
        resultLabel.text = str as String
    }
        paymentViewController?.dismissViewControllerAnimated(true, completion: nil)
    }  
}
```

到此就大功告成了，老外封装的东西还是非常给力的，希望可以找到扫描银行卡比较好用的第三方。  
 最终的效果，识别的非常准确哦

![1](<https://allluckly.cn/images/backing.png>)

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