iOSBarCodes #系统的条码扫描 二维码和条形码 ###调用: MHScanViewController *scanVC = [[MHScanViewController alloc] init]; scanVC.rebackData = ^(NSString *retStr) { NSLog(@"回传过来的的扫面结果%@", retStr); }; [self presentViewController:scanVC animated:YES completion:nil];