BarcodeScanner is a simple and beautiful wrapper around the camera with barcode-capturing functionality and a great user experience. To start capturing just instantiate BarcodeScannerViewController, set the needed delegates and present it. While the user sees a nice loading animation you can perform some background task, for example, make a network request to fetch product info based on the code. When the task is done you have 3 options to proceed. We styled BarcodeScanner to make it look nice...