# react-native-barcodescanner

**Repository Path**: neo0820/react-native-barcodescanner

## Basic Information

- **Project Name**: react-native-barcodescanner
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-10-18
- **Last Updated**: 2021-10-18

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# react-native-barcodescanner - not maintained anymore - use react-native-camera

Version 0.4.0 of [react-native-camera](https://github.com/lwansbrough/react-native-camera) includes barcode scanning for android as well. I recommend using it for barcode and QR scanning as you can use the same library both for iOS and android and the implementation is more robust than this one.

## Old README

A barcode scanner component for react native android. The library uses https://github.com/zxing/zxing to decode the barcodes.

### React Native dependencies

- Version 0.1.4 for React Native <=0.18
- Version 1.x.x for React Native >=0.19
- Version 3.x.x for React Native >=0.25

### Installation

```bash
npm i --save react-native-barcodescanner
```

### Link it to your android project

You can link it simply by running `react-native link`.

#### Manual linking

* In `android/settings.gradle`

  ```gradle
  ...
  include ':react-native-barcodescanner', ':app'
  project(':react-native-barcodescanner').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-barcodescanner/android')
  ```

* In `android/app/build.gradle`

  ```gradle
  ...
  dependencies {
      ...
      compile project(':react-native-barcodescanner')
  }
  ```

* register module (in MainApplication.java)

  Add the following **import** statement:
  ```Java
  import com.eguma.barcodescanner.BarcodeScannerPackage;
  ```

  ...and then add `BarcodeScannerPackage` to exported package list *(MainApplication.java#getPackages)*:

  ```Java
  public class MainApplication extends Application implements ReactApplication {
      // (...)

      @Override
      protected List<ReactPackage> getPackages() {
        return Arrays.<ReactPackage>asList(
          new MainReactPackage(),
          new BarcodeScannerPackage()
        );
      }
  }
  ```

## Usage

```javascript
import React, {
  AppRegistry,
  Component,
} from 'react-native';
import BarcodeScanner from 'react-native-barcodescanner';

class BarcodeScannerApp extends Component {
  constructor(props) {
    super(props);

    this.state = {
      torchMode: 'off',
      cameraType: 'back',
    };
  }

  barcodeReceived(e) {
    console.log('Barcode: ' + e.data);
    console.log('Type: ' + e.type);
  }

  render() {
    return (
      <BarcodeScanner
        onBarCodeRead={this.barcodeReceived}
        style={{ flex: 1 }}
        torchMode={this.state.torchMode}
        cameraType={this.state.cameraType}
      />
    );
  }
}

AppRegistry.registerComponent('BarcodeScannerApp', () => BarcodeScannerApp);
```

## Example

Try the included [BarcodeScanner example](https://github.com/ideacreation/react-native-barcodescanner/tree/master/Examples/BarcodeScanner) yourself:

```sh
git clone git@github.com:ideacreation/react-native-barcodescanner.git
cd react-native-barcodescanner/Examples/BarcodeScanner
npm install
react-native run-android

```

To test the example you can scan the barcodes in the [Testcodes.pdf](https://github.com/ideacreation/react-native-barcodescanner/tree/master/Examples/Testcodes.pdf) file.

## Properties

#### `onBarCodeRead`

Will call the specified method when a barcode is detected in the camera's view.
Event contains `data` (barcode value) and `type` (barcode type).
The following barcode types can be recognised:

```java
BarcodeFormat.UPC_A
BarcodeFormat.UPC_E
BarcodeFormat.EAN_13
BarcodeFormat.EAN_8
BarcodeFormat.RSS_14
BarcodeFormat.CODE_39
BarcodeFormat.CODE_93
BarcodeFormat.CODE_128
BarcodeFormat.ITF
BarcodeFormat.CODABAR
BarcodeFormat.QR_CODE
BarcodeFormat.DATA_MATRIX
BarcodeFormat.PDF_417
```

#### `torchMode`

Values:
`on`,
`off` (default)

Use the `torchMode` property to specify the camera torch mode.

#### `cameraType`

Values:
`back` (default),
`front`

Use the `cameraType` property to specify the camera to use. If you specify the front camera, but the device has no front camera the back camera is used.

### Viewfinder

The viewfinder is a child react component of the barcodescanner component. if you don't need the viewfinder (e.g. because you want your own child components to render) or you want your own viewfinder you can disable it with `showViewFinder={false}`.

The following properties can be used to style the viewfinder:

`viewFinderBackgroundColor`,
`viewFinderBorderColor`,
`viewFinderBorderWidth`,
`viewFinderBorderLength`,
`viewFinderShowLoadingIndicator`,
`viewFinderHeight`,
`viewFinderWidth`,

All color values are strings (e.g. '#eee' or 'rgba(0, 0, 0, 0.3)', default: 'white'). `viewFinderHeight` (default: 200), `viewFinderWidth` (default: 200), `viewFinderBorderWidth` (default: 2) and `viewFinderBorderLength` (default: 30) are numbers, `viewFinderShowLoadingIndicator` is either `true` or `false` (default) and shows a ActivityIndicator centered in the viewfinder.