Comments (4)
Hey Kasper - MTBBarcodeScanner is built on top of Apple's AVFoundation, so it should work with all devices.
Are you scanning with the front or back camera? In some cases, the front camera has too low of a resolution to scan the barcode accurately. This is usually on iPads, though.
You may try dropping down a level and implementing the AVFoundation scanning directly. The MTBBarcodeScanner.m file will give you a good idea on how to do this. If the problem still exists there, you may try tweaking some settings (autoFocusRangeRestriction
, focusPointOfInterest
, etc) and seeing if that improves the situation. If you do encounter settings that work better, please report back so I can incorporate them into this library.
If AVFoundation doesn't work, you'll want to submit a bug report to Apple detailing the steps you took.
I only have an iPhone 5, 5S, and 6+ to test with, but I haven't seen this issue on any of them. Could you send over the barcodes you're using, as well as information about which camera?
Thanks!
from mtbbarcodescanner.
I have now tried something that seems too simple but does work. Could it really be that the solution is to place the barcode a bit below the center of the iphone's screen? I thought the iphone could scan the barcode no matter where it was placed on the camera view.
from mtbbarcodescanner.
Yes it should work anywhere on the screen. You may try using AVFoundation directly and seeing if the problem persists. Or tweaking the settings in your local copy of MTBBarcodeScanner.m
from mtbbarcodescanner.
I was able to try this on a few iPhone 6's and haven't seen the issue. If you have a way to reproduce this, please let me know and I will reopen!
from mtbbarcodescanner.
Related Issues (20)
- Only works with iOS10+ after recent changes HOT 2
- Impossible to read CODABAR barcode HOT 1
- Disable rotation HOT 1
- Initial camera setting HOT 1
- Warnings HOT 4
- Call stopScanning crash in viewDidDisappear HOT 4
- Flutter + Xcode 8.0: 3 errors, 9 warnings HOT 1
- Catalyst Support? HOT 4
- Maximum of read multiple codes HOT 3
- Problem configurating scanner with QR and Barcode HOT 5
- output becomes Garbled text HOT 8
- Crash NSInvalidArgumentException *** -[AVCaptureMetadataOutput setMetadataObjectTypes:] Unsupported type found - use -availableMetadataObjectTypes HOT 3
- when barcode data increased it is difficult to read Code.. HOT 1
- UIView preview has issues during orientation changes HOT 6
- Define Barcodetype in Swift HOT 3
- Camera Unfreeze method not working on. HOT 3
- Unrecognized Barcode Style HOT 1
- Camera unfreeze is corrupting flash HOT 3
- Getting the bytes raw HOT 1
- It's crashing on iPad and iPhone after you try to scan QR code. HOT 2
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from mtbbarcodescanner.