Ngx-scanner: Does not scan on some android phones

[lawrencetaur]

Firstly, thank you for this great piece of work! We had trouble getting instascan to work on iOS and this has solved our problem.

But, I tested this on a Pixel 2 and Mi A1 it does not work all the time. Strangely, instascan works well on Chrome Android.

What's weird is ngx-zxing works on a Nexus 5 and an old Vivo phone with Android 4.2

Under https://github.com/werthdavid/ngx-zxing#performance you mentioned, "Auto-focus can cause lags in detection as the camera adjusts focus." Is there a fixed-focus option available?

Not sure what is causing this issue.

[odahcam]

What version of the lib are you using?

[lawrencetaur]

^0.3.4

[odahcam]

Please test with v1.0.0-dev :)

[lawrencetaur]

No matching version found for [email protected]

I tried the following in package.json
^1.0.0-dev
^v1.0.0-dev
v1.0.0-dev
v1.0.0-dev.b3ec02

Still could not find the version. Even tried 'npm i https://github.com/werthdavid/ngx-zxing/tree/v1.0.0-dev.b3ec02' and 'npm i https://github.com/werthdavid/ngx-zxing/tree/v1.0.0-dev'

[werthdavid]

Yes, sorry we're currently doing lots of refactoring... the package would be

@zxing/[email protected]

[werthdavid]

@lawrencetaur concerning your question with autofocus: I made an follow-up issue (#40) for that

[lawrencetaur]

Works well on Ionic with 'ionic serve' but throws the following error when built for production:
`Running app-scripts build: --prod
[19:02:15] build prod started ...
[19:02:15] clean started ...
[19:02:15] clean finished in 7 ms
[19:02:15] copy started ...
[19:02:15] deeplinks started ...
[19:02:15] deeplinks finished in 75 ms
[19:02:15] ngc started ...
[19:02:21] typescript error
Error encountered resolving symbol values statically. Calling function 'ɵmakeDecorator', function calls are
not supported. Consider replacing the function or lambda with a reference to an exported function, resolving
symbol NgModule in
/home/clarity/Desktop/dev/qrcodescan-test/node_modules/@zxing/ngx-scanner/node_modules/@angular/core/core.d.ts,
resolving symbol NgxZxingModule in
/home/clarity/Desktop/dev/qrcodescan-test/node_modules/@zxing/ngx-scanner/zxing-ngx-scanner.d.ts, resolving
symbol NgxZxingModule in
/home/clarity/Desktop/dev/qrcodescan-test/node_modules/@zxing/ngx-scanner/zxing-ngx-scanner.d.ts

Error: The Angular AoT build failed. See the issues above
at /home/clarity/Desktop/dev/qrcodescan-test/node_modules/@ionic/app-scripts/dist/aot/aot-compiler.js:237:55
at step (/home/clarity/Desktop/dev/qrcodescan-test/node_modules/@ionic/app-scripts/dist/aot/aot-compiler.js:32:23)
at Object.next (/home/clarity/Desktop/dev/qrcodescan-test/node_modules/@ionic/app-scripts/dist/aot/aot-compiler.js:13:53)
at fulfilled (/home/clarity/Desktop/dev/qrcodescan-test/node_modules/@ionic/app-scripts/dist/aot/aot-compiler.js:4:58)
at
[19:02:21] copy finished in 6.44 s`

@zxing/[email protected] <- this is the package I have used

[odahcam]

So, are you using Ionic?

[lawrencetaur]

Yes. Ionic 3.9

[odahcam]

Nice, but unfortunately is not my area. Probably is the deploy type we're using that generates that problem. Do you have any extra info?

[werthdavid]

Don't have any ionic experience either...
Can you use the sources of this component so it maybe prints more helpful output?

[lawrencetaur]

Master branch works well on an Ionic 3.9 PWA! Thank you!

[odahcam]

[lock[bot]]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.