iOS实现支付宝或微信扫描银行卡号信息
随着人的懒的助长及人的聪明程度提高，慢慢忘记笔，习惯了键盘操作或手写，慢慢我们进入扫描识别的都市里，
今天当你体验微信及支付宝扫描识别银行卡号方便准确性特别高；
github 上提供的资料有，
https://github.com/card-io/card.io-iOS-SDK
https://github.com/paypal/PayPal-iOS-SDK 等
如果是xcode5或者更新的版本，只需要添加下面的库
* AVFoundation
* AudioToolbox
* CoreMedia
* MobileCoreServices
并且保证Build Settings里面这两项都是YES：
* Enable Modules (C and Objective-C)
*Link Frameworks Automatically
2、在TARGETS-Build Settings添加 -lc++到Other Linker Flags
（3）使用
我是把它作为一个viewController类使用
代码：
导入
<code><span>#import <span>"CardIO.h"</span></span> <span>#import <span>"CardIOPaymentViewControllerDelegate.h"</span></span> - (<span>void</span>)viewWillAppear:(<span>BOOL</span>)animated { [<span>super</span> viewWillAppear:animated]; [CardIOUtilities preload]; } <span>//开始扫描</span> - (<span>IBAction</span>)scanCard:(<span>id</span>)sender { CardIOPaymentViewController *scanViewController = [[CardIOPaymentViewController alloc] initWithPaymentDelegate:<span>self</span>]; [<span>self</span> presentViewController:scanViewController animated:<span>YES</span> completion:<span>nil</span>]; } 下面是代理方法 <span>//取消扫描</span> - (<span>void</span>)userDidCancelPaymentViewController:(CardIOPaymentViewController *)scanViewController { <span>NSLog</span>(@<span>"User canceled payment info"</span>); <span>// Handle user cancellation here...</span> [scanViewController dismissViewControllerAnimated:<span>YES</span> completion:<span>nil</span>]; } <span>//扫描完成</span> -(<span>void</span>)userDidProvideCreditCardInfo:(CardIOCreditCardInfo *)info inPaymentViewController:(CardIOPaymentViewController *)scanViewController { <span>//扫描结果</span> <span>//CardIOCreditCardInfo *info里面包含了银行卡的一些信息，如info.cardNumber是扫描的银行卡号，现实的是完整号码，而info.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</span> 可以用下面注释的方法来加空格 <span>// NSString *strTem = [info.cardNumber stringByReplacingOccurrencesOfString:@" " withString:@""];</span> <span>// NSString *strTem2 = @"";</span> <span>// if (strTem.length % 4 == 0)</span> <span>// {</span> <span>// int count = strTem.length / 4;</span> <span>// for (int i = 0; i < count; i++)</span> <span>// {</span> <span>// NSString *str = [strTem substringWithRange:NSMakeRange(i * 4, 4)];</span> <span>// strTem2 = [strTem2 stringByAppendingString:[NSString stringWithFormat:@"%@ ", str]];</span> <span>// }</span> <span>// }</span> <span>// else</span> <span>// {</span> <span>// int count = strTem.length / 4;</span> <span>// for (int j = 0; j <= count; j++)</span> <span>// {</span> <span>// if (j == count)</span> <span>// {</span> <span>// NSString *str = [strTem substringWithRange:NSMakeRange(j * 4, strTem.length % 4)];</span> <span>// strTem2 = [strTem2 stringByAppendingString:[NSString stringWithFormat:@"%@ ", str]];</span> <span>// }</span> <span>// else</span> <span>// {</span> <span>// NSString *str = [strTem substringWithRange:NSMakeRange(j * 4, 4)];</span> <span>// strTem2 = [strTem2 stringByAppendingString:[NSString stringWithFormat:@"%@ ", str]];</span> <span>// }</span> <span>// }</span> <span>// }</span> <span>NSLog</span>(@<span>"Received card info. Number: %@, expiry: %02i/%i, cvv: %@."</span>, info<span>.redactedCardNumber</span>, info<span>.expiryMonth</span>, info<span>.expiryYear</span>, info<span>.cvv</span>); <span>// Use the card info...</span> [scanViewController dismissViewControllerAnimated:<span>YES</span> completion:<span>nil</span>]; } </code><div> </div>
iOS实现支付宝或微信扫描银行卡号信息
原文：http://www.cnblogs.com/zero-zql/p/4729992.html