flutter_pdfview 1.0.0+2

flutter_pdfview: ^1.0.0+2 copied to clipboard

example/lib/main.dart

import 'dart:async';
import 'dart:io';

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

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

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String pathPDF = "";

  @override
  void initState() {
    super.initState();
    createFileOfPdfUrl().then((f) {
      setState(() {
        pathPDF = f.path;
        print(pathPDF);
      });
    });
  }

  Future<File> createFileOfPdfUrl() async {
    // final url =
    // "https://berlin2017.droidcon.cod.newthinking.net/sites/global.droidcon.cod.newthinking.net/files/media/documents/Flutter%20-%2060FPS%20UI%20of%20the%20future%20%20-%20DroidconDE%2017.pdf";
    final url = "https://pdfkit.org/docs/guide.pdf";
    final filename = url.substring(url.lastIndexOf("/") + 1);
    var request = await HttpClient().getUrl(Uri.parse(url));
    var response = await request.close();
    var bytes = await consolidateHttpClientResponseBytes(response);
    String dir = (await getApplicationDocumentsDirectory()).path;
    File file = new File('$dir/$filename');
    await file.writeAsBytes(bytes);
    return file;
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter PDF View',
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(title: const Text('Plugin example app')),
        body: Center(child: Builder(
          builder: (BuildContext context) {
            return RaisedButton(
                child: Text("Open PDF"),
                onPressed: () {
                  if (pathPDF != null) {
                    Navigator.push(
                      context,
                      MaterialPageRoute(
                          builder: (context) => PDFScreen(pathPDF)),
                    );
                  }
                });
          },
        )),
      ),
    );
  }
}

class PDFScreen extends StatelessWidget {
  final String pathPDF;
  final Completer<PDFViewController> _controller =
      Completer<PDFViewController>();
  PDFScreen(this.pathPDF);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Document"),
        actions: <Widget>[
          IconButton(
            icon: Icon(Icons.share),
            onPressed: () {},
          ),
        ],
      ),
      body: PDFView(
        filePath: pathPDF,
        swipeHorizontal: true,
        autoSpacing: false,
        pageFling: false,
        onViewCreated: (PDFViewController pdfViewController) {
          _controller.complete(pdfViewController);
        },
        onPageChanged: (int page) {
          print('page change: $page');
        },
      ),
      floatingActionButton: FutureBuilder<PDFViewController>(
        future: _controller.future,
        builder: (context, AsyncSnapshot<PDFViewController> snapshot) {
          if (snapshot.hasData) {
            return FloatingActionButton.extended(
              label: Text("Go to 16"),
              onPressed: () async {
                await snapshot.data.setPage(16);
              },
            );
          }

          return Container();
        },
      ),
    );
  }
}