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LokeshPalani
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Added the missed files in the pdfviewer platform interface
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‎packages/syncfusion_flutter_pdfviewer_platform_interface/example/lib/main.dart

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import 'package:flutter/material.dart';
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import 'package:syncfusion_flutter_pdfviewer/pdfviewer.dart';
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void main() {
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runApp(MaterialApp(
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title: 'Syncfusion PDF Viewer Demo for Web',
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theme: ThemeData(
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useMaterial3: false,
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),
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home: const HomePage(),
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));
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}
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/// Represents Homepage for Navigation
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class HomePage extends StatefulWidget {
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const HomePage({Key? key}) : super(key: key);
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@override
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_HomePage createState() => _HomePage();
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}
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class _HomePage extends State<HomePage> {
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final GlobalKey<SfPdfViewerState> _pdfViewerKey = GlobalKey();
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@override
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void initState() {
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super.initState();
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('Syncfusion Flutter PDF Viewer'),
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actions: <Widget>[
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IconButton(
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icon: const Icon(
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Icons.bookmark,
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color: Colors.white,
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),
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onPressed: () {
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_pdfViewerKey.currentState?.openBookmarkView();
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},
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),
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],
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),
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body: SfPdfViewer.network(
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'https://cdn.syncfusion.com/content/PDFViewer/flutter-succinctly.pdf',
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key: _pdfViewerKey,
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),
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);
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}
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}

‎packages/syncfusion_flutter_pdfviewer_platform_interface/lib/pdfviewer_platform_interface.dart

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export 'src/pdfviewer_platform_interface.dart';

‎packages/syncfusion_flutter_pdfviewer_platform_interface/lib/src/method_channel_pdfviewer.dart

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import 'dart:async';
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import 'package:flutter/services.dart';
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import 'package:syncfusion_pdfviewer_platform_interface/pdfviewer_platform_interface.dart';
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class MethodChannelPdfViewer extends PdfViewerPlatform {
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final MethodChannel _channel = MethodChannel('syncfusion_flutter_pdfviewer');
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/// Initializes the PDF renderer instance in respective platform by loading the PDF from the provided byte information.
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/// If success, returns page count else returns error message from respective platform
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@override
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Future<String?> initializePdfRenderer(
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Uint8List documentBytes, String documentID) async {
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return _channel.invokeMethod('initializePdfRenderer', <String, dynamic>{
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'documentBytes': documentBytes,
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'documentID': documentID
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});
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}
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/// Gets the height of all pages in the document.
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@override
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Future<List?> getPagesHeight(String documentID) async {
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return _channel.invokeMethod('getPagesHeight', documentID);
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}
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/// Gets the width of all pages in the document.
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@override
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Future<List?> getPagesWidth(String documentID) async {
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return _channel.invokeMethod('getPagesWidth', documentID);
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}
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/// Gets the image's bytes information of the specified page.
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@override
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Future<Uint8List?> getImage(
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int pageNumber, double currentScale, String documentID) async {
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return _channel.invokeMethod<Uint8List>('getImage', <String, dynamic>{
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'index': pageNumber,
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'scale': currentScale,
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'documentID': documentID
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});
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}
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/// Gets the image's bytes information of the specified portion of the page
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@override
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Future<Uint8List?> getTileImage(int pageNumber, double currentScale, double x,
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double y, double width, double height, String documentID) async {
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return _channel.invokeMethod<Uint8List>('getTileImage', <String, dynamic>{
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'pageNumber': pageNumber,
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'scale': currentScale,
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'x': x,
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'y': y,
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'width': width,
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'height': height,
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'documentID': documentID
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});
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}
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/// Closes the PDF document.
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@override
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Future<void> closeDocument(String documentID) async {
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return _channel.invokeMethod('closeDocument', documentID);
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}
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}

‎packages/syncfusion_flutter_pdfviewer_platform_interface/lib/src/pdfviewer_platform_interface.dart

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library syncfusion_pdfviewer_platform_interface;
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import 'dart:async';
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import 'dart:typed_data';
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import 'package:plugin_platform_interface/plugin_platform_interface.dart';
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import 'package:syncfusion_pdfviewer_platform_interface/src/method_channel_pdfviewer.dart';
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/// The interface that implementations of syncfusion_flutter_pdfviewer must implement.
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///
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/// Platform implementations should extend this class rather than implement it as `syncfusion_flutter_pdfviewer`
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/// does not consider newly added methods to be breaking changes. Extending this class
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/// (using `extends`) ensures that the subclass will get the default implementation, while
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/// platform implementations that `implements` this interface will be broken by newly added
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/// [PdfViewerPlatform] methods
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abstract class PdfViewerPlatform extends PlatformInterface {
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/// Constructs a PdfViewerPlatform.
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PdfViewerPlatform() : super(token: _token);
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static PdfViewerPlatform _instance = MethodChannelPdfViewer();
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static final Object _token = Object();
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/// The default instance of [PdfViewerPlatform] to use.
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///
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/// Defaults to [MethodChannelPdfViewer]
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static PdfViewerPlatform get instance => _instance;
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/// Platform-specific plugins should set this with their own platform-specific
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/// class that extends [PdfViewerPlatform] when they register themselves.
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static set instance(PdfViewerPlatform instance) {
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PlatformInterface.verifyToken(instance, _token);
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_instance = instance;
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}
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/// Initializes the PDF renderer instance in respective platform by loading the PDF from the specified path.
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///
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/// If success, returns page count else returns error message from respective platform
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Future<String?> initializePdfRenderer(
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Uint8List documentBytes, String documentID) async {
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throw UnimplementedError(
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'initializePdfRenderer() has not been implemented.');
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}
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/// Gets the height of all pages in the document.
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Future<List?> getPagesHeight(String documentID) async {
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throw UnimplementedError('getPagesHeight() has not been implemented.');
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}
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/// Gets the width of all pages in the document.
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Future<List?> getPagesWidth(String documentID) async {
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throw UnimplementedError('getPagesWidth() has not been implemented.');
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}
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/// Gets the image's bytes information of the specified page.
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Future<Uint8List?> getImage(
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int pageNumber, double scale, String documentID) async {
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throw UnimplementedError('getImage() has not been implemented.');
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}
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/// Gets the image's bytes information of the specified portion of the page.
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Future<Uint8List?> getTileImage(int pageNumber, double scale, double x,
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double y, double width, double height, String documentID) async {
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throw UnimplementedError('getTileImage() has not been implemented.');
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}
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/// Closes the PDF document.
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Future<void> closeDocument(String documentID) async {
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throw UnimplementedError('closeDocument() has not been implemented.');
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}
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}

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