Invoking barcode scanner causes application crash on latest NativeScript ios platform (8.1.0)

When the barcode scanner is invoked, the application crashes on ios with the latest nativescript runtime.

NativeScript Info

✔ Component nativescript has 8.1.1 version and is up to date. ✔ Component @nativescript/core has 8.1.1 version and is up to date. ✔ Component @nativescript/ios has 8.1.0 version and is up to date.

Steps

• Create an example application with the barcode scanner implemented.
• configure beepOnScan to false.
• Invoke the barcode scanner.

The crash has something to do with the _addVolumeObserver.

Stack

2021-09-10 14:08:28.074065-0400 someapp[844:112105] 58 0x101978e68 tns::Tasks::Drain() + 104 2021-09-10 14:08:28.074274-0400 someapp[844:112105] 59 0x101973088 +[NativeScript start:] + 572 2021-09-10 14:08:28.074308-0400 someapp[844:112105] 60 0x100e877a0 main + 676 2021-09-10 14:08:28.074339-0400 someapp[844:112105] 61 0x186469cf8 <redacted> + 4 2021-09-10 14:08:28.074359-0400 someapp[844:112105] JavaScript stack trace: 2021-09-10 14:08:28.103018-0400 someapp[844:112105] at _addVolumeObserver (file:///app/vendor.js:146876:32)

Temporary fix:

        if (scanner['_observer']) {
            scanner['_observer']['_owner'] = undefined;
            scanner['_observer'] = undefined;
        }

[bmacdonald]

@tdhman It’s pretty gross and I am not proud of it, but you need to configure beepOnScan = false. Then create an instance of the barcode scanner class. Apply the properties to the class. I am using an angular service which wraps the scanner, but you don’t have to do that. The reason it works is because there is an _addVolumeObserver method which will return if there is no _observer. This is intended to be a temporary hack. Hopefully, @EddyVerbruggen can possibly take a look.

        config.beepOnScan = false;
        const scanner =  new BarcodeScanner();
        if (scanner['_observer']) {
            scanner['_observer']['_owner'] = undefined;
            scanner['_observer'] = undefined;
        }
        return scanner.scan(config);

[grigala]

@EddyVerbruggen any update on this one?