react-native-zebra-bluetooth-printer

Getting started

$ npm install @greeendev/react-native-zebra-bluetooth-printer --save

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$ react-native link @greeendev/react-native-zebra-bluetooth-printer

Note : For react-native > 0.59, don't use above command it uses auto-linking.

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#### iOS

1. In XCode, in the project navigator, right click Libraries ➜ Add Files to [your project's name]
2. Go to node_modules ➜ react-native-zebra-bluetooth-printer and add RNZebraBluetoothPrinter.xcodeproj
3. In XCode, in the project navigator, select your project. Add libRNZebraBluetoothPrinter.a to your project's Build Phases ➜ Link Binary With Libraries
4. Run your project (Cmd+R)<

#### Android

1. Open up android/app/src/main/java/[...]/MainActivity.java
- Add import com.reactlibrary.RNZebraBluetoothPrinterPackage; to the imports at the top of the file
- Add new RNZebraBluetoothPrinterPackage() to the list returned by the getPackages() method
2. Append the following lines to android/settings.gradle:
``
include ':react-native-zebra-bluetooth-printer'
project(':react-native-zebra-bluetooth-printer').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-zebra-bluetooth-printer/android')
`
3. Insert the following lines inside the dependencies block in android/app/build.gradle:
`
compile project(':react-native-zebra-bluetooth-printer')
`

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`



`

Usage

RNZebraBluetoothPrinter

RNZebraBluetoothPrinter is a module for Bluetooth management and supports print functionality for zebra bluetooth printers ( only ble devices ).
It includes features like bluetooth enable/disable, pair/unpair a BLE/Bluetooth device, scan for nearby bluetooth devices and printing using bluetooth.
`javascript
import RNZebraBluetoothPrinter from 'react-native-zebra-bluetooth-printer';

`
1. isEnabledBluetooth == > async function, check the status of bluetooth service in the bluetooth client(mobile phone) .Returns true if already enabled, false if not enabled.
`javascript
RNZebraBluetoothPrinter.isEnabledBluetooth().then((res) => {
//do something with res
})
`
2. enableBluetooth == > async function,
Android: requests for bluetooth on/off permission on the android device.
iOS: resolves to nil.

`javascript
RNZebraBluetoothPrinter.enableBluetooth().then((res) => {
//do something with res
})
`

3. disableBluetooth == > async function,
Android: disables bluetooth if bluetooth is switched on.
iOS: simply resolves by nil.
`javascript
RNZebraBluetoothPrinter.disableBluetooth().then((res) => {
//do something with res
})
`
4. scanDevices == > async function, scans for available nearby bluetooth devices for a specific period of time.
`javascript
RNZebraBluetoothPrinter.scanDevices().then((deviceArray) => {
//do something with res
})
`
5. pairedDevices == > async function,
Android: returns already paired devices.
iOS: resolves to nil.
`javascript
RNZebraBluetoothPrinter.pairedDevices().then((deviceArray) => {
//do something with deviceArray
})
`
6. connectDevice == > async function, for both android and iOS
`javascript
RNZebraBluetoothPrinter.connectDevice(deviceAddress).then((res) => {
//do something with res
//for android, device address is mac address
//for iOS, device address is a long string like 0C347F9F-2881-9CCB-43B0-205976944626
})
`
7. unpairDevice == > async function,
Android: unpair/disconnect a paired device from paired device list.
`javascript
RNZebraBluetoothPrinter.unpairDevice(deviceAddress).then((res) => {
//do something with res
})
`
iOS: function resolves to nil.
8. print == > async function, prints specific zpl string from a zebra printer for both android and iOS. CPCL strings can also be printed using this for Android.

For example :
`javascript
const zpl = "^XA^FX Top section with company logo, name and address.^CF0,60^FO50,50^GB100,100,100^FS^ FO75,75 ^ FR ^ GB100, 100, 100 ^ FS^ FO88, 88 ^ GB50, 50, 50 ^ FS ^XZ";

`
Android
`javascript
RNZebraBluetoothPrinter.print(deviceAddress,zpl).then((res) => {
//do something with res
})
`
iOS
`javascript
RNZebraBluetoothPrinter.print(zpl).then((res)=>{
//do something with res
})
``