SwiftQRCode

$ gem install cocoapods

platform :ios, '8.0'
use_frameworks!

pod 'SwiftQRCode'

$ pod install

import SwiftQRCode

let scanner = QRCode()

override func viewDidLoad() {
    super.viewDidLoad()

    scanner.prepareScan(view) { (stringValue) -> () in
        println(stringValue)
    }
    scanner.scanFrame = view.bounds
}

override func viewDidAppear(animated: Bool) {
    super.viewDidAppear(animated)

    // start scan
    scanner.startScan()
}

// generate qrcode
iconView.image = QRCode.generateImage("Hello SwiftQRCode", avatarImage: UIImage(named: "avatar"), avatarScale: 0.3)

#import "QRCodeDemoObjc-Swift.h"

@property (nonatomic, strong) QRCode *scanner;

- (void)viewDidLoad {
    [super viewDidLoad];

    // alloc and prepare for scan
    self.scanner = [[QRCode alloc] init];
    [self.scanner prepareScan:self.view completion:^(NSString * __nonnull stringValue) {
        NSLog(@"%@", stringValue);
    }];
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];

    // start scan
    [self.scanner startScan];
}

// generate qrcode
[QRCode generateImage:@"Hello SwiftQRCode" avatarImage:[UIImage imageNamed:@"avatar.jpg"] avatarScale:0.25];