Using external QR code libraries through CHT Extension Lib

[Jennifer_Quesada]

@jkuester

I cannot remember off the top of my head if the barcode widget actually works with CHT/Enekto…

This is part of the ODK Collect app, and sadly not included in Enketo.

@jkuester

Another thing I remember being mentioned was using the android-app-launcher to pop into a separate app to collect the QR code info and then bring that back to the form.

Correct, the Android App Launcher is a form widget that opens third-party apps with public Android’s intents.

@iesmail

I therefore used another scanner app (com.gamma.scan) and updated the example xls on line 53. While clicking the “Launch App” button, the scanner app did not open.

The third-party app defines how other apps interact with it by using public intents. Imagine Intents like something to configure that allows communication between 2 parties. This configuration relies entirely on the third-party app.

I suggest to find an open source app, then it’s easier to look at their code and find the intent configuration. Another option is to contact com.gamma.scan team and get that information from them. Because these are third-party apps, I recommend to also check their privacy policy to make sure they fit to your project needs.