QRScan
二维码/条形码扫描
简书：http://www.jianshu.com/p/7af1c18c32e4
效果图
图是用itool实施桌面录制的，看起来会很卡顿
使用方法
- (IBAction)btnScanClick:(id)sender {
QRScanViewController *vc = [[QRScanViewController alloc] init];
vc.delegate = self;
vc.hidesBottomBarWhenPushed = YES;
[self showViewController:vc sender:nil];
}
//扫描结果回调
- (void)qrScanResult:(NSString *)result viewController:(QRScanViewController *)qrScanVC
{
}