Phonegap-plugin-barcodescanner: Camera cannot focus due to wrong aspect ratio since plugin 6.0.5

[Style117]

Expected Behaviour

This Screenshot shows the Plugin on the same smartphone in version 4.1.0. Scanning of barcodes and QR-codes works fine.

Actual Behaviour

This Screenshot shows the Plugin in version 6.0.5. It looks like the plugin calculates the wrong screen resolution. The camera does not focus and the aspect ratio is wrong (drawn-out). It is impossible to scan Barcodes like this. QR-Codes are scanned very fast.

Platform and Version (eg. Android 5.0 or iOS 9.2.1)

Android 5.1.1

(Android) What device vendor (e.g. Samsung, HTC, Sony...)

Samsung Galaxy Grand Prime (SM-G531F)

Cordova CLI version and cordova platform version

6.4.0

Plugin version

phonegap-plugin-barcodescanner 6.0.5 "BarcodeScanner"

[gczudowski]

I see the same issue on the same device (Samsung grand prime). Plugin v6.0.4. The phone keeps trying to focus, but the image is blurred all the time when you put the barcode inside the square. It works fine when you increase the distance between the barcode and the phone.
The grand prime is not the only phone with the issue.

Any idea what might be the cause of it?

[gczudowski]

A way out of this situation would be to remove the grey area and only show the red line so that the users don't think they need to put the phone very close for the app to scan the code properly.

Could we have the option in the config to disable the greyed out area?

[jstoup111]

Any status on this?

[wcalderw]

We are seeing the same problem on different phone depending on the quality of the camera.
However if we use the xing bar code scanner (i'm assuming that the plugin also uses the xing library) on the same phone with the same bar code it scans fine. So our conclusion is that this is a problem with the barcode plugin and not the hardware/phone.
https://play.google.com/store/apps/details?id=com.google.zxing.client.android&hl=en

[briebug]

I am seeing the same issue using my Samsung Galaxy Tab 4 with Cordova CLI 6.4.0 and phonegap-plugin-barcodescanner 6.0.5. The plugin is unable to focus and scan any barcodes. I've attempted multiple different lighting scenarios as well as distance from the barcode.

I have downloaded ZXing Test and Barcode Scanner from the Play Store and both work fine. I am able to consistently scan barcodes.

I downgraded phonegap-plugin-barcodescanner to 6.0.2 and I am now able to scan barcodes again. It looks like there were several big changes to the android source that could impact the performance.

For now, I am using ionic plugin add [email protected] as a workaround. I deleted my platforms directory, add the plugin and then add my platforms:

rm -fr platforms
ionic plugin add [email protected]
ionic platform add android
ionic platform add ios

ionic run android --device

[Style117]

I do not see any difference on the Samsung Grand Prime with plugin version 6.0.2. The problem still occurs.

[gczudowski]

@Style117 I agree. the problem is present on 6.0.2 as well. Anyone found a fix that could be applied?

[sebmaniac]

I am also having this issue (latest Cordova on Android). I tried several different versions, no luck. This is an absolute blocker!

[briebug]

At risk of sounding dumb, did you remove both platforms and plugins?

ionic platform rm ios
ionic platform rm android
rm -fr platforms
rm -fr plugins
ionic plugin add [email protected] --save

ionic prepare

We have tested this on multiple devices and found it to work. The key was removing platforms and plugins so that ionic could update everything properly.

[sebmaniac]

I am not using ionic, just plain cordova. But I'll give it a try.

On 20 Jan 2017, at 01:35, Jesse Sanders [e-mail] wrote:

At risk of sounding dumb, did you remove both platforms and plugins?

ionic platform rm ios
ionic platform rm android
rm -fr platforms
rm -fr plugins
ionic plugin add [email protected] --save

ionic prepare
We have tested this on multiple devices and found it to work. The key was removing platforms and plugins so that ionic could update everything properly.

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[briebug]

@sebmaniac - it shouldn't matter if you are using just cordova... Ionic is just a wrapper around cordova. Just replace ionic with cordova in the example I gave and it should work.

[sebmaniac]

I just tried it, no luck. It is not working with 6.0.2., even after removing the entire plugins and platform.

From: Jesse Sanders [mailto:[email protected]]
Sent: Friday, January 20, 2017 2:15 PM
To: phonegap/phonegap-plugin-barcodescanner
Cc: sebmaniac; Mention
Subject: Re: [phonegap/phonegap-plugin-barcodescanner] Camera cannot focus due to wrong aspect ratio since plugin 6.0.5 (#392)

@sebmaniac https://github.com/sebmaniac - it shouldn't matter if you are using just cordova... Ionic is just a wrapper around cordova. Just replace ionic with cordova in the example I gave and it should work.

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[sebmaniac]

Any news on this? Are the developers addressing this issue?

[EddyVerbruggen]

FYI this developer doesn't have a device that replicates the issue. My Nexus 6P and Samsung PRO8 behave just fine (correct aspect ratio's). Perhaps someone else with a 'problematic' device can take a look?

[javierlopeza]

Any news on this? I'm having the same issue.

[gczudowski]

Hi everybody. I'm trying to work on this issue. I need some help on reproducing this issue more often (it happens very rarely on my Grand Prime). any movies or screenshots presenting the issue would be helpful.
@Style117 how do you know it is connected with wrong aspect ratio? aspect ratio of what?

[Style117]

@gczudowski I dont know if its connected to the wrong aspect ratio. But if you compare the two screenshots its all squeezed together.

[douglasevaristo]

any news? i have the same problem :(

[khayargoli]

Any news?

[ming-k]

Here's a video of the aspect ratio problem on Samsung Galaxy Mega 5.8 (GT-I9152) trying to scan a QR Code.

barcode.m4v.zip

[wcalderw]

BarCodeSF550.avi.zip

Here's a video of the barcode failing. You'll notice that the 3rd and 4th time it scans the wrong number.

[gczudowski]

Hey guys, thanks for the movies. I was able to solve this issue. Enjoy

[EddyVerbruggen]

Hey guys (especially those of you that experienced this issue),

Can you please give the latest version from GitHub's master branch a spin? It includes the changes @gczudowski made today. Like I said before I can't test them, I was only able to check for regression issues on my devices.

[Style117]

Hi, the error is fixed on my Grand Prime.

I tested it with:
cordova CLI: 6.4.0
Ionic CLI Version: 2.1.14
Ionic App Lib Version: 2.1.7

@gczudowski thanks for the update. 👍

[ming-k]

The fix is confirmed on Samsung Galaxy Mega 5.8 (GT-I9152), thank you @gczudowski :thumbsup:

[MUmer1124]

Hi Guys. Any update is this issue is fixed?
I facing same issue using [email protected].
I also downgrade version 6.0.2 & 6.0.5 but no luck.

[wcalderw]

Was fixed several months ago. I know we verified the fix here.

On Oct 2, 2017 05:31, "MUmer1124" [e-mail] wrote:

Hi Guys. Any update is this issue is fixed?
I facing same issue using [email protected].
I also downgrade version 6.0.2 & 6.0.5 but no luck.

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