CODEWITHSUNDEEP
flutterdartpdfprinting
Jungwon
Jungwon

Reputation: 996

Fix flutter printing pacakge UI

I am trying to print a PDF from flutter. I pubget the printing package via pub.dev.

https://pub.dev/packages/printing

enter image description here

After running the app following the example, press the printer icon button to move the screen.

enter image description here enter image description here

I'm trying to fix the Save as PDF part shown above. I couldn't find the UI part even if I searched along the class.

I noticed that the view is switched through the _print method of the PdfPreview class, but after that, I couldn't find where to make the UI and make it work.

Do you know a dart file or class that makes UI?

main.dart

import 'dart:typed_data';

import 'package:flutter/material.dart';
import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart' as pw;
import 'package:printing/printing.dart';
import 'package:http/http.dart' as http;

Future<void> main() async {
  runApp(MyApp('Printing Demo'));
}

class MyApp extends StatelessWidget {
  MyApp(this.title, {Key? key}) : super(key: key);

  final String title;

  PdfDocument? _doc;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(title: Text(title)),
        body: PdfPreview(
          build: (format) => _generatePdf(format, title),
        ),
      ),
    );
  }

  Future<Uint8List> _generatePdf(PdfPageFormat format, String title) async {
    final pdf = pw.Document(version: PdfVersion.pdf_1_5, compress: true);
    final font = await PdfGoogleFonts.nunitoExtraLight();

    pdf.addPage(
      pw.Page(
        pageFormat: format,
        build: (context) {
          return pw.Column(
            children: [
              pw.SizedBox(
                width: double.infinity,
                child: pw.FittedBox(
                  child: pw.Text(title, style: pw.TextStyle(font: font)),
                ),
              ),
              pw.SizedBox(height: 20),
              pw.Flexible(child: pw.FlutterLogo())
            ],
          );
        },
      ),
    );

    return pdf.save();
  }
}

Upvotes: 0

Views: 1558

Answers (1)

Kozubi
Kozubi

Reputation: 539

You cant change printing view - is handled by system. I belive this is how this package works - it sends data to another Intenet

Upvotes: 1

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