iOS開發之OCR光學識別儲蓄卡以及信用卡

Bison發表於2016-08-30

最近由於公司需要一個掃描銀行卡獲取卡號的功能，網上找了很多相關的資料，完全掃描銀行卡
獲取卡號資訊的都是價格貴的不得了的，而且僅僅只是授權而已，在此我們退而求次，找到一個可
以掃描信用卡的第三方框架，給大傢伙分享一下，只能掃描信用卡……o.0。
框架的名字叫CardIO
下載地址
在這裡主要給大家演示一下怎麼整合的，各位看官可得注意咯！
我的xcode是7.1版本的，首先是把框架整個拉進自己的工程，然後在
TARGETS—Build Phases—Link Binary With Libraries
裡邊分別加入下面這幾個框架
Accelerate.framework
MobileCoreServices.framework
CoreMedia.framework
AudioToolbox.framework
AVFoundation.framework
再在TARGETS—Build Settings—Other Linker Flags中新增-ObjC和-lc++

然後在我們需要呼叫的VC中匯入標頭檔案#import "CardIO.h"和#import "CardIOPaymentViewControllerDelegate.h"
加上代理CardIOPaymentViewControllerDelegate

然後是實現的方法

OC版

- (void)viewDidLoad {
    [super viewDidLoad];

    [CardIOUtilities preload];
}

//開始呼叫掃描
- (IBAction)begin:(id)sender {

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

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


//取消掃描
- (void)userDidCancelPaymentViewController:(CardIOPaymentViewController *)scanViewController

{


    [scanViewController dismissViewControllerAnimated:YES completion:nil];

}

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

{

    //掃描結果
    NSLog(@"Received card info. Number: %<a href="http://www.jobbole.com/members/uz441800">@,</a> expiry: %02i/%i, cvv: %@.", info.redactedCardNumber, info.expiryMonth, info.expiryYear, info.cvv);

    [scanViewController dismissViewControllerAnimated:YES completion:nil];

}

- (void)viewDidLoad {

[super viewDidLoad];

[CardIOUtilities preload];

}

//開始呼叫掃描

- (IBAction)begin:(id)sender {

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

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

}

//取消掃描

- (void)userDidCancelPaymentViewController:(CardIOPaymentViewController *)scanViewController

{

[scanViewController dismissViewControllerAnimated:YES completion:nil];

}

//掃描完成

-(void)userDidProvideCreditCardInfo:(CardIOCreditCardInfo *)info inPaymentViewController:(CardIOPaymentViewController *)scanViewController

{

//掃描結果

NSLog(@"Received card info. Number: %<a href="http://www.jobbole.com/members/uz441800">@,</a> expiry: %02i/%i, cvv: %@.", info.redactedCardNumber, info.expiryMonth, info.expiryYear, info.cvv);

[scanViewController dismissViewControllerAnimated:YES completion:nil];

}

SWIFT版

import UIKit

class ViewController: UIViewController, CardIOPaymentViewControllerDelegate {

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

    CardIOUtilities.preload()
}

//開始呼叫掃描
@IBAction func scanCard(sender: AnyObject) {
    let cardIOVC = CardIOPaymentViewController(paymentDelegate: self)
    cardIOVC.modalPresentationStyle = .FormSheet
    presentViewController(cardIOVC, animated: true, completion: nil)
}
//取消掃描
func userDidCancelPaymentViewController(paymentViewController: CardIOPaymentViewController!) {
    resultLabel.text = "user canceled"
    paymentViewController?.dismissViewControllerAnimated(true, completion: nil)
}
//掃描完成
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)
    }  
}

import UIKit

class ViewController: UIViewController, CardIOPaymentViewControllerDelegate {

@IBOutlet weak var resultLabel: UILabel!

override func viewDidLoad() {

super.viewDidLoad()

CardIOUtilities.preload()

}

//開始呼叫掃描

@IBAction func scanCard(sender: AnyObject) {

let cardIOVC = CardIOPaymentViewController(paymentDelegate: self)

cardIOVC.modalPresentationStyle = .FormSheet

presentViewController(cardIOVC, animated: true, completion: nil)

}

//取消掃描

func userDidCancelPaymentViewController(paymentViewController: CardIOPaymentViewController!) {

resultLabel.text = "user canceled"

paymentViewController?.dismissViewControllerAnimated(true, completion: nil)

}

//掃描完成

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，老外封裝的東西還是非常給力的，希望可以找到掃描銀行卡比較好用的第三方。
最終的效果，識別的非常準確哦