flutter_pdf_viewer 0.0.7 flutter_pdf_viewer: ^0.0.7 copied to clipboard
A native Pdf viewer for flutter based on Pdfium Android
import 'dart:typed_data';
import 'package:flutter/material.dart';
import 'package:flutter_pdf_viewer/main.dart';
void main() {
runApp(new MyApp());
PdfViewer.enableAnalytics(Duration(milliseconds: 500));
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
home: new Scaffold(
appBar: new AppBar(
title: const Text('Flutter PDF Viewer'),
),
body: new Center(
child: ListView(
children: [
FromAsset(),
FromUrl(),
FromBytes(),
AnalyticsView(),
],
),
),
),
);
}
}
var choices = [
'default',
'nightMode: true',
'enableSwipe: false',
'swipeHorizontal: true',
'autoSpacing: true',
'pageFling: true',
'pageSnap: true',
'enableImmersive: true',
'autoPlay: true',
'slideshow',
'XOR encrypted',
];
class FromAsset extends StatefulWidget {
List<DropdownMenuItem> get items {
List<DropdownMenuItem> items = [];
for (int i = 0; i < choices.length; i++) {
items.add(
DropdownMenuItem(child: Text(choices[i]), value: i),
);
}
return items;
}
@override
FromAssetState createState() {
return new FromAssetState();
}
}
class FromAssetState extends State<FromAsset> {
int _value = 0;
@override
Widget build(BuildContext context) {
String prefix = _value == 10 ? "xor_" : "";
return Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Padding(
padding: const EdgeInsets.all(10.0),
child: DropdownButton(
value: _value,
items: widget.items,
onChanged: (value) {
setState(() {
_value = value;
});
},
),
),
RaisedButton(
child: Text("loadAsset()"),
onPressed: () {
PdfViewer.loadAsset(
'assets/${prefix}test.pdf',
config: PdfViewerConfig(
nightMode: _value == 1,
swipeHorizontal: _value == 3 || _value == 9,
autoSpacing: _value == 4 || _value == 9,
pageFling: _value == 5 || _value == 9,
pageSnap: _value == 6 || _value == 9,
enableImmersive: _value == 7,
autoPlay: _value == 8,
videoPages: [
VideoPage.fromAsset(
8,
"assets/${prefix}buck_bunny.mp4",
xorDecryptKey: _value == 10 ? "test" : null,
),
],
xorDecryptKey: _value == 10 ? "test" : null),
);
},
),
],
);
}
}
class FromUrl extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: RaisedButton(
onPressed: () async {
Scaffold.of(context).showSnackBar(
SnackBar(
content: Text('Downloading...'),
duration: Duration(days: 24),
),
);
String filePath = await downloadAsFile(
'https://mozilla.github.io/pdf.js/web/compressed.tracemonkey-pldi-09.pdf',
);
Scaffold.of(context).hideCurrentSnackBar();
print('Downloaded - $filePath');
PdfViewer.loadFile(filePath);
},
child: Text('loadFile(downloadAsFile(cache: true))'),
),
);
}
}
class FromBytes extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: RaisedButton(
onPressed: () async {
Scaffold.of(context).showSnackBar(
SnackBar(
content: Text('Downloading...'),
duration: Duration(days: 24),
),
);
Uint8List bytes = await downloadAsBytes(
'https://mozilla.github.io/pdf.js/web/compressed.tracemonkey-pldi-09.pdf',
);
print('Downloaded as bytes');
Scaffold.of(context).hideCurrentSnackBar();
PdfViewer.loadBytes(bytes);
},
child: Text('loadBytes(downloadAsBytes())'),
),
);
}
}
class AnalyticsView extends StatefulWidget {
@override
_AnalyticsViewState createState() => _AnalyticsViewState();
}
class _AnalyticsViewState extends State<AnalyticsView> {
Map _analytics = {};
@override
Widget build(BuildContext context) {
return Container(
child: Column(
children: <Widget>[
RaisedButton(
child: Text("getAnalytics(null)"),
onPressed: () async {
Map records = await PdfViewer.getAnalytics(null);
setState(() => _analytics = records);
},
),
] +
_analytics.keys
.map((page) => Text("$page - ${_analytics[page]}"))
.toList(),
),
);
}
}