Guida Introduttiva
Copy a setup prompt with the install steps and the full markdown guide for this plugin.
Set up this Capacitor plugin in the project.
Use the package manager already used by the project.
Install these package(s): `@capgo/capacitor-printer`
Run the required Capacitor sync/update step after installation.
Read this markdown guide for the full setup steps: https://raw.githubusercontent.com/Cap-go/website/refs/heads/main/apps/docs/src/content/docs/it/docs/plugins/printer/getting-started.mdx
Use that guide for platform-specific steps, native file edits, permissions, config changes, imports, and usage setup.
If that guide references other docs pages, read them too.
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Installa il pacchetto
Terminal window npm i @capgo/capacitor-printerTerminal window pnpm add @capgo/capacitor-printerTerminal window yarn add @capgo/capacitor-printerTerminal window bun add @capgo/capacitor-printer -
Sincronizza con i progetti nativi
Terminal window npx cap syncTerminal window pnpm cap syncTerminal window yarn cap syncTerminal window bunx cap sync
Utilizzo
Section titled “Utilizzo”Importa il plugin e stampa vari tipi di contenuto:
import { Printer } from '@capgo/capacitor-printer';
// Print HTML contentconst printHTML = async () => { await Printer.print({ content: '<h1>Hello World</h1><p>This is a test print.</p>', name: 'test-print' });};
// Print a PDF fileconst printPDF = async () => { await Printer.print({ content: 'file:///path/to/document.pdf', name: 'my-document' });};
// Print an imageconst printImage = async () => { await Printer.print({ content: 'file:///path/to/image.jpg', name: 'my-image' });};Riferimento API
Section titled “Riferimento API”print(options)
Section titled “print(options)”Apre la finestra di stampa nativa con il contenuto specificato.
interface PrintOptions { content: string; // HTML string, file URI, or base64 data name?: string; // Print job name orientation?: 'portrait' | 'landscape'; grayscale?: boolean; // Print in grayscale (default: false)}
await Printer.print(options);canPrint()
Section titled “canPrint()”Verifica se la stampa è disponibile sul dispositivo.
const { value } = await Printer.canPrint();console.log('Printing available:', value);Esempio Completo
Section titled “Esempio Completo”import { Printer } from '@capgo/capacitor-printer';import { Filesystem, Directory } from '@capacitor/filesystem';
export class PrintService { async checkPrintAvailability(): Promise<boolean> { const { value } = await Printer.canPrint(); return value; }
async printHTML(htmlContent: string, jobName: string = 'Document') { try { const canPrint = await this.checkPrintAvailability(); if (!canPrint) { throw new Error('Printing not available on this device'); }
await Printer.print({ content: htmlContent, name: jobName, orientation: 'portrait' }); } catch (error) { console.error('Print failed:', error); throw error; } }
async printDocument(filePath: string, jobName?: string) { await Printer.print({ content: filePath, name: jobName || 'Document' }); }
async printReceipt(receiptData: any) { const html = ` <!DOCTYPE html> <html> <head> <style> body { font-family: Arial, sans-serif; padding: 20px; } .header { text-align: center; margin-bottom: 20px; } .item { display: flex; justify-content: space-between; margin: 10px 0; } .total { font-weight: bold; font-size: 1.2em; margin-top: 20px; padding-top: 10px; border-top: 2px solid #000; } </style> </head> <body> <div class="header"> <h2>Receipt</h2> <p>Date: ${new Date().toLocaleDateString()}</p> </div> ${receiptData.items.map((item: any) => ` <div class="item"> <span>${item.name}</span> <span>$${item.price.toFixed(2)}</span> </div> `).join('')} <div class="total"> <div class="item"> <span>Total:</span> <span>$${receiptData.total.toFixed(2)}</span> </div> </div> </body> </html> `;
await this.printHTML(html, 'Receipt'); }
async printFromURL(url: string) { // Download the file first const response = await fetch(url); const blob = await response.blob(); const reader = new FileReader();
return new Promise((resolve, reject) => { reader.onloadend = async () => { try { await Printer.print({ content: reader.result as string, name: 'Downloaded Document' }); resolve(true); } catch (error) { reject(error); } }; reader.onerror = reject; reader.readAsDataURL(blob); }); }}Utilizzo Avanzato
Section titled “Utilizzo Avanzato”Stampa con Stili Personalizzati
Section titled “Stampa con Stili Personalizzati”const printStyledDocument = async () => { const html = ` <!DOCTYPE html> <html> <head> <style> @page { size: A4; margin: 2cm; } body { font-family: 'Times New Roman', serif; line-height: 1.6; } h1 { color: #333; border-bottom: 2px solid #333; padding-bottom: 10px; } .content { margin-top: 20px; } </style> </head> <body> <h1>Professional Document</h1> <div class="content"> <p>This is a professionally styled document ready for printing.</p> </div> </body> </html> `;
await Printer.print({ content: html, name: 'Styled Document', orientation: 'portrait' });};Stampa di Tabelle
Section titled “Stampa di Tabelle”const printTable = async (data: any[]) => { const tableRows = data.map(row => ` <tr> <td>${row.id}</td> <td>${row.name}</td> <td>${row.value}</td> </tr> `).join('');
const html = ` <!DOCTYPE html> <html> <head> <style> table { width: 100%; border-collapse: collapse; } th, td { border: 1px solid #ddd; padding: 8px; text-align: left; } th { background-color: #f2f2f2; font-weight: bold; } </style> </head> <body> <table> <thead> <tr> <th>ID</th> <th>Name</th> <th>Value</th> </tr> </thead> <tbody> ${tableRows} </tbody> </table> </body> </html> `;
await Printer.print({ content: html, name: 'Data Table' });};Stampa di Immagini
Section titled “Stampa di Immagini”const printImageWithDetails = async (imagePath: string, title: string) => { const html = ` <!DOCTYPE html> <html> <head> <style> body { text-align: center; padding: 20px; } h2 { margin-bottom: 20px; } img { max-width: 100%; height: auto; } </style> </head> <body> <h2>${title}</h2> <img src="${imagePath}" alt="${title}" /> </body> </html> `;
await Printer.print({ content: html, name: title });};Migliori Pratiche
Section titled “Migliori Pratiche”- Verifica Disponibilità: Controlla sempre se la stampa è disponibile prima di tentare di stampare
- Contenuto Valido: Assicurati che l’HTML sia ben formato e che i percorsi dei file siano validi
- Nomi dei Lavori: Usa nomi descrittivi per i lavori di stampa per aiutare gli utenti a identificarli
- Stili: Usa CSS inline o stili incorporati per un output di stampa coerente
- Gestione Errori: Avvolgi le chiamate di stampa in blocchi try-catch per il feedback dell’utente
Risoluzione dei Problemi
Section titled “Risoluzione dei Problemi”Problemi Comuni
Section titled “Problemi Comuni”Finestra di stampa non appare: Verifica che la stampa sia disponibile con canPrint() Contenuto non stampa: Verifica che l’HTML sia valido e che i percorsi dei file siano corretti Immagini non appaiono: Assicurati che i percorsi delle immagini siano assoluti e che i file siano accessibili Problemi di stile: Usa le regole CSS @page e testa l’output di stampa