how to diable flutter for web
flutter config --no-enable-webhow to diable flutter for web
flutter config --no-enable-webflutter web
$ flutter channel beta
$ flutter upgrade
$ flutter config --enable-webflutter web
flutter channel beta
flutter upgrade
flutter config --enable-webview 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';
html.document.body.children.add(anchor);
anchor.click();
html.document.body.children.remove(anchor);
html.Url.revokeObjectUrl(url);
},
),
],
mainAxisAlignment: MainAxisAlignment.center,
),
),
);
}
}Copyright © 2021 Codeinu
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