search

bcgov / bc-wallet-mobile

BC Wallet to hold Verifiable Credentials
Apache License 2.0
61 stars 48 forks source link

QR Code scanner screen is black when using "back" function in Android #2070

Open krobinsonca opened 3 months ago

krobinsonca commented 3 months ago

Description of problem

QR code scanner screen is black when using the "back" function in Android. Use case is that I scanned a QR code, but scanned the wrong one. Android users often click "back" go to a previous screen when they did something by mistake. (Confirmed by @loneil)

Expected behavior

QR code scanner screen uses the camera function (to scan a QR code)

Steps to reproduce

  1. Open QR code scanner
  2. Scan a valid QR code for a proof (I used Dev ACM vc-authn)
  3. Click the "back" navigation button
  4. QR code scanner screen shows again but picture is black and cannot scan another QR code

Screenshots and/or log output

Environment

Build #: 1760

Android Device Model: Samsung Galaxy S23 Ultra

iOS Device Model:

Workaround

Don't use back button, instead use Home button and relaunch QR code scanner

Severity

jleach commented 1 week ago

I don't think this is an issue any longer. There is no "back" button on the proof screen nay longer, just "cancel" and "home" if you can not fulfill the proof or "accept", "decline" and "home" if you can. Verified in 1.0.21. I also tried the hardware back gesture on a Pixel 7a and it is not enabled. Maybe we need an actual hardware button?

loneil commented 1 week ago

I can still reproduce this on 1.0.21 1932 with my Pixel 8 and the back gesture:

https://github.com/user-attachments/assets/0a80513c-0dd8-4843-af4a-f331ef4e7702

al-rosenthal commented 1 day ago

On a OnePlus 10 Pro I was able to reproduce the issue with version 1.0.20 (from the play store) but I am unable to reproduce this bug with version 1.0.21