Camera cannot focus the QR code in HuaWei Device

[Tomme-wong]

When open the scanner, the camera cannot focus the QR code.

• Device 1: Huawei nova 5T
• Device 2: Huawei kirin 980

Is there any setting or config i can try?

[ROBERT-MCDOWELL]

focusMode: "continuous"

[Tomme-wong]

focusMode: "continuous"

html5QrCode
.start(
camera,
config,

is this config put into camera camera setting or config object?
I tested both, it doesn't work.

Also i tested the
html5QrCode.applyVideoConstraints({focusMode: "continuous"})
seems not working too.

[ROBERT-MCDOWELL]

I use it it in the scanner config where you put all settings like qrbox etc...
here is my whole config
{fps: 8, qrbox: {width: 250, height: 250}, rememberLastUsedCamera: true, disableFlip: true, aspectRatio: 1, facingMode: {exact: "environment"}, focusMode: "continuous", supportedScanTypes: [Html5QrcodeScanType.SCAN_TYPE_CAMERA,Html5QrcodeScanType.SCAN_TYPE_FILE] , formatsToSupport: [Html5QrcodeSupportedFormats.QR_CODE], showTorchButtonIfSupported: true, useBarCodeDetectorIfSupported: true, showZoomSliderIfSupported: true, defaultZoomValueIfSupported: 2}

[Topiya]

I use it it in the scanner config where you put all settings like qrbox etc... here is my whole config {fps: 8, qrbox: {width: 250, height: 250}, rememberLastUsedCamera: true, disableFlip: true, aspectRatio: 1, facingMode: {exact: "environment"}, focusMode: "continuous", supportedScanTypes: [Html5QrcodeScanType.SCAN_TYPE_CAMERA,Html5QrcodeScanType.SCAN_TYPE_FILE] , formatsToSupport: [Html5QrcodeSupportedFormats.QR_CODE], showTorchButtonIfSupported: true, useBarCodeDetectorIfSupported: true, showZoomSliderIfSupported: true, defaultZoomValueIfSupported: 2}

@ROBERT-MCDOWELL
showZoomSliderIfSupported and defaultZoomValueIfSupported options are not working when we use html5QrCode.start().
It is working only with html5QrcodeScanner.render()

Does above options working for you with html5QrCode.start() ?

[ROBERT-MCDOWELL]

I use only html5QrcodeScanner, which is built on top of the html5Qrcode class so you should find the equivalent in the docs

[OrchardRX]

Hello, have you resolved Huawei's inability to focus? I have also encountered this problem. May I ask how you can solve it