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IDProjectCategoryView StatusLast Update
0007289Talerwallet (Android App)public2022-11-04 19:52
Reportersebasjm Assigned Togrote Resolution deadline
ImplementerReviewer 
Release signed byDeployed by 
VerifierCommunicator 
Data protection authority notification requiredNo  
CSIRT notification requiredNo  
Estimated effort (hours)Actual effort (hours)0 
Fast-trackNo
Work packagenone
PrioritynormalSeverityminorReproducibilityhave not tried
Status closedResolutionfixed 
Product Versiongit (master) 
Target Version0.9Fixed in Version0.9 
Summary0007289: can't read qr codes with inverted colors
Descriptionblack background and white squares don't work with the qr scan.

other qr scanners are able to read the qr
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grote

2022-08-17 18:54

reporter   ~0019015

Our scanning library allows us to request an inverted scan: https://github.com/journeyapps/zxing-android-embedded/blob/40260272fcff4f14181803495e7d370c23e35db7/zxing-android-embedded/src/com/google/zxing/client/android/Intents.java#L218

However, how do we know whether we need to scan an inverted code beforehand?

grote

2022-08-17 18:55

reporter   ~0019016

I hit send too fast. There's actually a MIXED_SCAN mode which should help.

grote

2022-08-17 19:16

reporter   ~0019017

Implemented in https://git.taler.net/taler-android.git/commit/?id=48b609b653180b1145b2103097837e514e58364d

sebasjm could you check if this works for you now? I inverted a code with GIMP and could scan that.

sebasjm

2022-08-19 13:06

developer   ~0019019

it worked!

Issue History

Date ModifiedUsernameFieldChange
2022-07-24 14:10sebasjmNew Issue
2022-07-24 14:10sebasjmStatusnew => assigned
2022-07-24 14:10sebasjmAssigned To => grote
2022-08-17 18:54groteNote Added: 0019015
2022-08-17 18:55groteNote Added: 0019016
2022-08-17 19:16groteNote Added: 0019017
2022-08-19 13:06sebasjmStatusassigned => informing
2022-08-19 13:06sebasjmResolutionopen => fixed
2022-08-19 13:06sebasjmNote Added: 0019019
2022-10-20 08:47Christian GrothoffFixed in Version => 0.9
2022-10-20 08:48Christian GrothoffTarget Versiongit (master) => 0.9
2022-11-04 19:52Christian GrothoffStatusinforming => closed