/
pdf_viewer_page.dart
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/
pdf_viewer_page.dart
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import 'dart:async';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter_pdfview/flutter_pdfview.dart';
import 'package:path/path.dart';
class PDFViewerPage extends StatefulWidget {
final File file;
const PDFViewerPage({
Key key,
@required this.file,
}) : super(key: key);
@override
_PDFViewerPageState createState() => _PDFViewerPageState();
}
class _PDFViewerPageState extends State<PDFViewerPage> {
PDFViewController controller;
int pages = 0;
int indexPage = 0;
@override
Widget build(BuildContext context) {
final name = basename(widget.file.path);
final text = '${indexPage + 1} of $pages';
return Scaffold(
appBar: AppBar(
title: Text(name),
actions: pages >= 2
? [
Center(child: Text(text)),
IconButton(
icon: Icon(Icons.chevron_left, size: 32),
onPressed: () {
final page = indexPage == 0 ? pages : indexPage - 1;
controller.setPage(page);
},
),
IconButton(
icon: Icon(Icons.chevron_right, size: 32),
onPressed: () {
final page = indexPage == pages - 1 ? 0 : indexPage + 1;
controller.setPage(page);
},
),
]
: null,
),
body: PDFView(
filePath: widget.file.path,
// autoSpacing: false,
// swipeHorizontal: true,
// pageSnap: false,
// pageFling: false,
onRender: (pages) => setState(() => this.pages = pages),
onViewCreated: (controller) =>
setState(() => this.controller = controller),
onPageChanged: (indexPage, _) =>
setState(() => this.indexPage = indexPage),
),
);
}
}