jv_easy_pdf_viewer 1.1.0

A Flutter plugin that provides a simple and customizable PDF viewer for Android and iOS.

example/lib/main.dart

import 'package:jv_easy_pdf_viewer_example/with_progress.dart';
import 'package:flutter/material.dart';
import 'package:jv_easy_pdf_viewer/jv_easy_pdf_viewer.dart';

void main() => runApp(App());

class App extends StatelessWidget {
  const App({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(home: MyApp());
  }
}

class MyApp extends StatefulWidget {
  const MyApp({super.key, this.progressExample = false});

  final bool progressExample;

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  bool _isLoading = true;
  late PDFDocument document;

  @override
  void initState() {
    super.initState();
    loadDocument();
  }

  loadDocument() async {
    document = await PDFDocument.fromAsset('assets/sample.pdf');

    setState(() => _isLoading = false);
  }

  changePDF(value) async {
    setState(() => _isLoading = true);
    if (value == 1) {
      document = await PDFDocument.fromAsset('assets/sample2.pdf');
    } else if (value == 2) {
      document = await PDFDocument.fromURL(
        "https://www.africau.edu/images/default/sample.pdf",

        /* cacheManager: CacheManager(
          Config(
            "customCacheKey",
            stalePeriod: const Duration(days: 2),
            maxNrOfCacheObjects: 10,
          ),
        ), */
      );
    } else {
      document = await PDFDocument.fromAsset('assets/sample.pdf');
    }
    setState(() => _isLoading = false);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      drawer: Drawer(
        child: Column(
          children: <Widget>[
            SizedBox(height: 36),
            ListTile(
              title: Text('Load from Assets'),
              onTap: () {
                changePDF(1);
              },
            ),
            ListTile(
              title: Text('Load from URL'),
              onTap: () {
                changePDF(2);
              },
            ),
            ListTile(
              title: Text('Restore default'),
              onTap: () {
                changePDF(3);
              },
            ),
            ListTile(
              title: Text('With Progress'),
              onTap: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(builder: (context) => WithProgress()),
                );
              },
            ),
          ],
        ),
      ),
      appBar: AppBar(title: const Text('PDFViewer')),
      body: Center(
        child: _isLoading
            ? Center(child: CircularProgressIndicator())
            : PDFViewer(
                document: document,
                lazyLoad: false,
                zoomSteps: 1,
                numberPickerConfirmWidget: const Text("Confirm"),
                //uncomment below line to preload all pages
                // lazyLoad: false,
                // uncomment below line to scroll vertically
                // scrollDirection: Axis.vertical,

                //uncomment below code to replace bottom navigation with your own
                /* navigationBuilder:
                      (context, page, totalPages, jumpToPage, animateToPage) {
                    return ButtonBar(
                      alignment: MainAxisAlignment.spaceEvenly,
                      children: <Widget>[
                        IconButton(
                          icon: Icon(Icons.first_page),
                          onPressed: () {
                            jumpToPage()(page: 0);
                          },
                        ),
                        IconButton(
                          icon: Icon(Icons.arrow_back),
                          onPressed: () {
                            animateToPage(page: page - 2);
                          },
                        ),
                        IconButton(
                          icon: Icon(Icons.arrow_forward),
                          onPressed: () {
                            animateToPage(page: page);
                          },
                        ),
                        IconButton(
                          icon: Icon(Icons.last_page),
                          onPressed: () {
                            jumpToPage(page: totalPages - 1);
                          },
                        ),
                      ],
                    );
                  }, */
              ),
      ),
    );
  }
}