Flutter screen to pdf

by

Flutter Screen to PDF

To convert a Flutter screen to a PDF, you will need to use a combination of Flutter plugins and libraries.

Step 1: Setup Dependencies

In your Flutter project’s pubspec.yaml file, add the following dependencies:

dependencies:
  pdf: ^3.6.0
  flutter_html_to_pdf: ^2.1.0
  path_provider: ^2.0.2

Step 2: Create PDF Content

To create the content for your PDF, you can use the pdf package. This package provides tools and utilities for generating PDF files.

For example, you can create a PDF document with a simple text paragraph:

import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart' as pw;

Future generatePdfContent() async {
  final pdf = pw.Document();
  
  pdf.addPage(
    pw.Page(
      build: (pw.Context context) {
        return pw.Center(
          child: pw.Text('Hello, PDF!'),
        );
      },
    ),
  );
  
  return pdf;
}

Step 3: Convert Flutter Screen to HTML

Next, you will need to convert your Flutter screen to HTML. You can use the flutter_html_to_pdf package for this purpose.

For example, you can convert a Flutter widget tree to HTML:

import 'package:flutter/material.dart';
import 'package:flutter_html_to_pdf/flutter_html_to_pdf.dart';

Future generateHtmlContent() async {
  final htmlContent = await FlutterHtmlToPdf.convert(
    buildWidget: () => YourWidget(),
  );

  return htmlContent;
}

Step 4: Save HTML to PDF

Finally, you can save the generated HTML content as a PDF file using the path_provider package.

import 'package:path_provider/path_provider.dart';

Future savePdf(String htmlContent) async {
  final pdf = await FlutterHtmlToPdf.convertFromHtmlContent(htmlContent);
  final directory = await getTemporaryDirectory();
  final filePath = '${directory.path}/example.pdf';
  final file = File(filePath);
  await file.writeAsBytes(pdf.save());
  
  return filePath;
}

Now, you can use the savePdf method to convert your Flutter screen to PDF and save it to a file.

Example Usage

You can create a button in your Flutter screen that triggers the PDF generation and saving process:

ElevatedButton(
  onPressed: () async {
    final htmlContent = await generateHtmlContent();
    final filePath = await savePdf(htmlContent);
    
    print('PDF saved at $filePath');
  },
  child: Text('Save as PDF'),
),

Leave a comment