react-native-scanner-zebra-enhanced

react-native-scanner-zebra-enhanced

• In this package IOS is working perfectly with the latest SDK, but Android part based on the latest SDK needs to be implemented. Any Contribution are welcome!*

Installing for both React Native | Expo

npm install react-native-scanner-zebra-enhanced

yarn add react-native-scanner-zebra-enhanced

npx expo install react-native-scanner-zebra-enhanced

Mostly automatic installation

react-native link react-native-scanner-zebra-enhanced

Official Zebra SDK

• IOS Zebra SDK
• Android Zebra SDK

Methods:

• setEnabled(isEnabled): Enable or disable active scanners (Trigger pull and release barcode scanning)
• getActiveScanners(callback): Returns the list of active scanners in callback function

Usage

import useZebraScanner from 'react-native-scanner-zebra'

// Called when barcode is scanned
const onScan = useCallback((barcode, scannerId) => {
  // Handle the barcode
}, [])

// Called when scanner event occurred
const onEvent = useCallback((event, scannerId) => {
  // Handle the event
}, [])

const { setEnabled, getActiveScanners } = useZebraScanner(onScan, onEvent)

React native | Expo Example

import React, { useState, useCallback, useEffect } from 'react'
import {
  SafeAreaView,
  ScrollView,
  StyleSheet,
  View,
  Text,
  TouchableOpacity
} from 'react-native'
import useZebraScanner from 'react-native-scanner-zebra-enhanced'

interface IEventBarcode {
  code: string
  scannerId: number
}

interface IEvent {
  name: string
  scannerId: number
}

interface IEventState {
  barcode: IEventBarcode | null
  events: IEvent[]
}

const ZebraBarcodeScannerDemo = ({}) => {
  const [state, setState] = useState<IEventState>({
    barcode: null,
    events: []
  })

  const onScan = useCallback(
    (code, scannerId) => {
      console.log(`-=>Scan: code:${code} , scannerId:${scannerId}`)
      setState((prevState) => {
        return { ...prevState, barcode: { code, scannerId } }
      })
    },
    [setState]
  )

  const onEvent = useCallback(
    (name, scannerId) => {
      console.log('-=>Event', name, scannerId)
      setState((prevState) => {
        prevState.events.unshift({ name, scannerId })
        return { ...prevState }
      })
    },
    [setState]
  )

  const { setEnabled, getActiveScanners } = useZebraScanner(onScan, onEvent)

  const onPullTriggerScanning = useCallback(() => {
    setEnabled(true)
  }, [setEnabled])

  const onReleaseTriggerScanning = useCallback(() => {
    setEnabled(false)
  }, [setEnabled])

  useEffect(() => {
    getActiveScanners((scanners) => {
      console.log('Active scanners', scanners)
    })
  }, [getActiveScanners])

  return (
    <SafeAreaView style={styles.wrapper}>
      <View style={styles.container}>
        <Text style={styles.title}>Zebra Scanner Demo</Text>
        <View style={styles.headingRow}>
          <Text style={styles.heading}>Actions:</Text>
        </View>
        <View style={styles.actions}>
          <TouchableOpacity onPress={onPullTriggerScanning}>
            <View style={styles.button}>
              <Text style={styles.buttonLabel}>Trigger Scanners</Text>
            </View>
          </TouchableOpacity>
          <TouchableOpacity onPress={onReleaseTriggerScanning}>
            <View style={styles.button}>
              <Text style={styles.buttonLabel}>Release Scanners</Text>
            </View>
          </TouchableOpacity>
        </View>
        <View style={styles.headingRow}>
          <Text style={styles.heading}>Barcode:</Text>
        </View>
        {state.barcode !== null && (
          <View style={styles.event}>
            <Text style={styles.eventName}>Code: {state.barcode.code}</Text>
            <Text style={styles.eventData}>
              Scanner: {`${state.barcode.scannerId}`}
            </Text>
          </View>
        )}
        <View style={styles.headingRow}>
          <Text style={styles.heading}>Events:</Text>
        </View>
        <ScrollView
          style={styles.eventList}
          contentContainerStyle={styles.eventListContent}
        >
          {state.events.map((event) => (
            <View style={[styles.event, styles.eventRow]}>
              <Text style={styles.eventName}>Event: {event.name}</Text>
              <Text style={styles.eventData}>
                Scanner: {`${event.scannerId}`}
              </Text>
            </View>
          ))}
        </ScrollView>
      </View>
    </SafeAreaView>
  )
}

export default ZebraBarcodeScannerDemo

const styles = StyleSheet.create({
  wrapper: {
    width: '100%',
    height: '100%'
  },
  container: {
    flex: 1,
    flexDirection: 'column',
    alignItems: 'stretch',
    paddingTop: 20,
    paddingRight: 20,
    paddingLeft: 20,
    paddingBottom: 20,
    width: '100%',
    height: '100%'
  },
  title: {
    height: 30,
    fontSize: 20,
    fontWeight: 'bold',
    textAlign: 'center',
    margin: 10,
    color: '#202020'
  },
  headingRow: {
    width: '100%',
    height: 30
  },
  heading: {
    fontSize: 18,
    fontWeight: 'bold',
    textAlign: 'left',
    color: '#202020'
  },
  event: {
    width: '100%',
    flexDirection: 'row',
    alignItems: 'center',
    height: 40
  },
  eventRow: {
    borderBottomWidth: 1,
    borderBottomColor: '#ddd',
    paddingRight: 10,
    paddingLeft: 10
  },
  eventName: {
    width: '49%',
    fontSize: 16,
    textAlign: 'left'
  },
  eventData: {
    width: '49%',
    fontSize: 16,
    textAlign: 'left'
  },
  eventList: {
    flexGrow: 1,
    width: '100%'
  },
  eventListContent: {
    flex: 1,
    flexDirection: 'column'
  },
  actions: {
    paddingTop: 10,
    width: '100%',
    flexDirection: 'row',
    height: 60,
    justifyContent: 'flex-start'
  },
  button: {
    justifyContent: 'center',
    borderRadius: 5,
    borderColor: '#ddd',
    borderWidth: 1,
    height: 40,
    paddingRight: 10,
    paddingLeft: 10,
    width: 180,
    marginRight: 10
  },
  buttonLabel: {
    fontSize: 18,
    textAlign: 'center'
  }
})