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androidreact-nativebuildexpobarcode-scanner

Expo's BarCodeScanner crashes when sacaning using the build

App crashes when scanning a barcode using Expo's BarCodeScanner

I am very new to programming and expo, so I apologize in advance for the lack of precision.
I made an application using Expo 34.0.1 where I use expo’s expo-barcode-scanner. The app works perfectly on expo start; however, when I run expo build:android the scanning fails. The camera opens but as soon as a code is scanned, the app restarts.

(I didn’t test it on IOS)

"expo": "^34.0.1",
"react-native": "https://github.com/expo/react-native/archive/sdk-34.0.0.tar.gz",
"sdkVersion": "33.0.0",

import { BarCodeScanner } from 'expo-barcode-scanner';
import * as Permissions from 'expo-permissions';

<BarCodeScanner
        onBarCodeScanned={this.handleBarCodeScanned}
        style={StyleSheet.absoluteFill}
>
</BarCodeScanner>

I expect it to work as in development but instead the app restarts as soon as a code is scanned

Thank you!

Solution

  • The issue is from how your permission is set. You need to check where your permission is being called from. I have mine being called from componentWillMount()