Camera flickering when changing state

Expo SDK
1

I’m using SDK 34 with the latest android expo client.

I’m having an issue when intermittently the camera causes heavy flickering when it’s being unmounted. This only lasts about half a second but the flickering could possibly be dangerous with someone who suffers from epilepsy.

My code inside render() looks like this

if(scanning){
    return <Camera
               onBarCodeScanned={this.barcodeScanned}
               style={styles.scanner}
               barCodeScannerSettings={{
                   barCodeTypes: [BarCodeScanner.Constants.BarCodeType.qr],
                }}
            >
            </Camera>
} else {
    return <View></View>

The flickering happens roughly half the time. I have a button with absolute position that I use to toggle whether the camera is turned on or not.

Anyone have any ideas what could be causing this?

2

Hi

Could you make a minimal snack that reproduces the problem?

Off hand I don’t see why it would do that based on the code you posted.

3

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