CDZQRScanningViewController

Easy QR code scanning on iOS 7.

Installation

Add the dependency to your Podfile:

platform :ios
pod 'CDZQRScanningViewController'
...

Run pod install to install the dependencies.

Usage

#import "CDZQRScanningViewController.h", then:

// assume this text field is defined elsewhere:
UITextField *field = self.someTextField;

[field becomeFirstResponder];

// create the scanning view controller and a navigation controller in which to present it:
CDZQRScanningViewController *scanningVC = [CDZQRScanningViewController new];
UINavigationController *scanningNavVC = [[UINavigationController alloc] initWithRootViewController:scanningVC];

// configure the scanning view controller:
scanningVC.resultBlock = ^(NSString *result) {
    field.text = result;
    [scanningNavVC dismissViewControllerAnimated:YES completion:nil];
};
scanningVC.cancelBlock = ^() {
    [scanningNavVC dismissViewControllerAnimated:YES completion:nil];
};
scanningVC.errorBlock = ^(NSError *error) {
    // todo: show a UIAlertView orNSLog the error
    [scanningNavVC dismissViewControllerAnimated:YES completion:nil];
};

// present the view controller full-screen on iPhone; in a form sheet on iPad:
scanningNavVC.modalPresentationStyle = UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone ? UIModalPresentationFullScreen : UIModalPresentationFormSheet;
[self presentViewController:scanningNavVC animated:YES completion:nil];

If you don't want to present the scanner in its own modal UIViewController, use view controller containment to embed it in your own view controller, instead of presenting it inside a nav controller as in this example.

Other features

Tap and hold on the live video view for 0.25 seconds to activate the device's flashlight for use in low-light.

Why use this instead of ZBarSDK?

• smaller surface area
• easier to use
• less configuration
• less impact on your code
• much smaller, thanks to new APIs in iOS 7
• MIT license instead of GPL

Requirements

CDZQRScanningViewController requires iOS 7+.

License

MIT. See LICENSE included in this repo.

Developer

Chris Dzombak

• chris.dzombak.name
• [email protected]
• t@cdzombak
• a@dzombak