Answers for "websites with flutter and relase"

3

flutter build for web

flutter build web
Posted by: Guest on November-23-2020
0

view document in browser flutter web

import 'package:flutter/material.dart';
import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart' as pw;
import 'package:universal_html/html.dart' as html;

class PdfDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final pdf = pw.Document();
    pdf.addPage(pw.Page(
        pageFormat: PdfPageFormat.a4,
        build: (pw.Context context) {
          return pw.Center(
            child: pw.Text("Hello World"),
          );
        }));
    final bytes = pdf.save();
    final blob = html.Blob([bytes], 'application/pdf');

    return Scaffold(
      appBar: AppBar(),
      body: Center(
        child: Column(
          children: <Widget>[
            RaisedButton(
              child: Text("Open"),
              onPressed: () {
                final url = html.Url.createObjectUrlFromBlob(blob);
                html.window.open(url, "_blank");
                html.Url.revokeObjectUrl(url);
              },
            ),
            RaisedButton(
              child: Text("Download"),
              onPressed: () {
                final url = html.Url.createObjectUrlFromBlob(blob);
                final anchor =
                    html.document.createElement('a') as html.AnchorElement
                      ..href = url
                      ..style.display = 'none'
                      ..download = 'some_name.pdf';
Posted by: Guest on August-09-2020

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