Feat barcode scanner #3
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…t from homescreen onPress 'Scan Barcode'
…o barcodeScanner screen
…nPress to lightBlue
…ode/:barcode, dispatch to reducer
…tting up navigation functionality
…ctMessage, add validations and loading screen in preview
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As a user I want to be able to scan a barcode of a product and get recipes containing this product.
I implemented expo's BarCodeScanner which gives you the type and data. Data contains the actual barcode number, which I needed to send to the backend, in order to search Open Food Facts API for the correct item. Then in the response we get the item's name and labels.
Those labels I then set to the labels you can choose from on the preview screen (this label will be searched with for recipes). Except not every product has labels, in those cases you can search for recipes with the item's name. If there are no labels and no name, a message will be send. And for now, that message will pop up as an alert.
I added another button on the preview screen so that you are now able to go back to either camera or barcode scanner (instead of having to go back to the homepage, to be able to select the other one.)
To make everything work fine with each other, going back and forth I had to add several validations on the camera, preview and barcodeScanner screens.
And I also added colours in a separate folder so I can use them globally now.