Before I found an app that could make Wallet passes for my store cards, I used this page to have the QR/barcodes only a swipe away on my lock screen.
Took screenshots from the store’s apps, added them to individual albums and then added the Photos widget, selecting the album per widget.
You could also stack them to be able to just swipe between the codes. This may even work better to avoid scanning the code next to the one you meant to scan.
Before I found an app that could make Wallet passes for my store cards, I used this page to have the QR/barcodes only a swipe away on my lock screen.
Took screenshots from the store’s apps, added them to individual albums and then added the Photos widget, selecting the album per widget.
You could also stack them to be able to just swipe between the codes. This may even work better to avoid scanning the code next to the one you meant to scan.