如何使用ionic web应用程序检测与系统连接的打印机

npm install -g @ionic/cli

ionic start printerApp blank

cd printerApp
ionic platform add android

ionic cordova plugin add cordova-plugin-printer

import { Component } from '@angular/core';
import { Printer } from '@ionic-native/printer/ngx';

@Component({
  selector: 'app-home',
  templateUrl: 'home.page.html',
  styleUrls: ['home.page.scss'],
})
export class HomePage {

  constructor(private printer: Printer) {}

  checkPrinter() {
    this.printer.isAvailable().then((isAvailable: boolean) => {
      if (isAvailable) {
        console.log('Printer is available');
      } else {
        console.log('Printer is not available');
      }
    }).catch((error: any) => {
      console.error('Error checking printer availability', error);
    });
  }

}

ionic build
ionic cordova run android