| 1 | # expo-barcode-scanner
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| 2 |
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| 3 | Allows scanning variety of supported barcodes both as standalone module and as extension for expo-camera. It also allows scanning barcodes from existing images.
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| 4 |
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| 5 | # API documentation
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| 6 |
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| 7 | - [Documentation for the master branch](https://github.com/expo/expo/blob/master/docs/pages/versions/unversioned/sdk/bar-code-scanner.md)
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| 8 | - [Documentation for the latest stable release](https://docs.expo.io/versions/latest/sdk/bar-code-scanner/)
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| 9 |
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| 10 | # Installation in managed Expo projects
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| 11 |
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| 12 | For managed [managed](https://docs.expo.io/versions/latest/introduction/managed-vs-bare/) Expo projects, please follow the installation instructions in the [API documentation for the latest stable release](https://docs.expo.io/versions/latest/sdk/bar-code-scanner/).
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| 13 |
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| 14 | # Installation in bare React Native projects
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| 15 |
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| 16 | For bare React Native projects, you must ensure that you have [installed and configured the `expo` package](https://docs.expo.dev/bare/installing-expo-modules/) before continuing.
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| 17 |
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| 18 | ### Add the package to your npm dependencies
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| 19 |
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| 20 | ```
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| 21 | expo install expo-barcode-scanner
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| 22 | ```
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| 23 |
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| 24 | ### Configure for iOS
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| 25 |
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| 26 | Add `NSCameraUsageDescription` and `NSMicrophoneUsageDescription` key to your `Info.plist`:
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| 27 |
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| 28 | ```xml
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| 29 | <key>NSCameraUsageDescription</key>
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| 30 | <string>Allow $(PRODUCT_NAME) to use the camera</string>
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| 31 | <key>NSMicrophoneUsageDescription</key>
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| 32 | <string>Allow $(PRODUCT_NAME) to use the microphone</string>
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| 33 | ```
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| 34 |
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| 35 | Run `npx pod-install` after installing the npm package.
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| 36 |
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| 37 | ### Configure for Android
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| 38 |
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| 39 | This package automatically adds the `CAMERA` permission to your app.
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| 40 |
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| 41 | ```xml
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| 42 | <!-- Added permissions -->
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| 43 | <uses-permission android:name="android.permission.CAMERA" />
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| 44 | ```
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| 45 |
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| 46 | # Contributing
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| 47 |
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| 48 | Contributions are very welcome! Please refer to guidelines described in the [contributing guide](https://github.com/expo/expo#contributing).
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