react-native-printer-pt220

React Native Module For PT-220 Thermal Printer

Installation

npm i react-native-printer-pt220

iOS Configuration

Initial Setup

Open your project's Info.plist and add the following lines inside the outermost <dict> tag:

<key>NSBluetoothPeripheralUsageDescription</key>
<string>Need Bluetooth</string>
<key>NSBluetoothAlwaysUsageDescription</key>
<string>Need Bluetooth</string>

Setup For Printing Images

You can import images using asset catalog in Xcode.

Android Configuration

Initial Setup

None

Setup For Printing Images

You can import drawables with resource manager in Android Studio.

Usage

import * as React from 'react';

import { StyleSheet, View, Button, Platform } from 'react-native';
import { ptConnect, ptSetPrinter, ptPrintText, ptPrintImage, PT_ALIGN_CENTER, ptInit } from 'react-native-printer-pt220';

export default function App() {

  const [result, setResult] = React.useState<string>();
  const printerName = 'PT-220';

  React.useEffect(() => {

    if(Platform.OS === 'ios') {
      ptInit();
      setTimeout(() => {
        console.log('Connecting...');
        ptConnect(printerName).then(setResult);
      }, 2000);
    } else {
      // call connect right away
      console.log('Connecting...');
      ptConnect(printerName).then(setResult);
    }
  }, []);

  return (
    <View style={styles.container}>
      <Button title='Test Print' onPress={() => {
        ptSetPrinter(PT_ALIGN_CENTER)
        .then(ret => {
          console.log(ret);
          console.log('Set printer to align center');

          ptPrintText('React Native Module Test...\n\n')
          .then(pret => {
            console.log(pret);
            console.log('Text printed...');

            ptPrintImage('react_native_logo')
            .then(pret2 => {
              console.log(pret2);
              console.log('Image printed...');
            })
            .catch(pe2 => {
              console.log(pe2);
            });

          })
          .catch(pe => {
            console.log(pe);
          });

        })
        .catch(e => {
          console.log(e);
        });

      }} />
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
  box: {
    width: 60,
    height: 60,
    marginVertical: 20,
  },
});