Book Reader App

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Online PDF Book Reader App Using Flutter

In this guide, you’ll learn how to create an online PDF book reader app using Flutter. This app will allow users to view PDF books from a URL.

1. Setup and Project Creation

To start, ensure Flutter is installed on your system. Create a new Flutter project with the following command:

flutter create pdf_reader_app

2. Adding Dependencies

Open your pubspec.yaml file and add the following dependency to include the PDF rendering package:

dependencies:
  flutter:
    sdk: flutter
  flutter_pdfview: ^1.0.4+2

3. Designing the User Interface

Replace the code in lib/main.dart with the following to set up the user interface:

import 'package:flutter/material.dart';
import 'package:flutter_pdfview/flutter_pdfview.dart';

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

class PDFReaderApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'PDF Reader App',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: PDFViewPage(),
    );
  }
}

class PDFViewPage extends StatefulWidget {
  @override
  _PDFViewPageState createState() => _PDFViewPageState();
}

class _PDFViewPageState extends State<PDFViewPage> {
  final String pdfUrl = 'http://www.africau.edu/images/default/sample.pdf';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Online PDF Book Reader'),
      ),
      body: PDFView(
        filePath: pdfUrl,
        enableSwipe: true,
        swipeHorizontal: true,
        autoSpacing: false,
        pageFling: true,
      ),
    );
  }
}

Explanation

  • PDFReaderApp: The root widget initializing the MaterialApp.
  • PDFViewPage: A StatefulWidget that displays the PDF reader.
  • PDFView: A widget from flutter_pdfview used to render the PDF.

User Interface Components

  • A PDFView widget is used to display the PDF file.
  • The app bar to provide a title for the app.

Run the App

To run the app, use the flutter run command. You can also run the app in Visual Studio Code by pressing F5.