Barcodes and QR codes can be useful features in many types of apps from social apps like WeChat and Venmo to connect friends together or location-based games like scavenger hunts. The Barcode Scanner component uses the camera to read any barcode or QR code.
The Barcode Scanner is among the easiest components to set-up and use. After adding the component to your app, you can connect it with a button and a label like the blocks below.
value from scanned barcode/QR code
barcode or QR code
If user cancelled action, returns true; else returns false
If error, returns error; else returns null
In most cases you'll use the default back camera in your mobile device but you also have the option to specify the front camera in certain cases.