flutter_cached_pdfview

flutter_cached_pdfview

A package to show Native PDF View for iOS and Android, support Open from a different resource like Path, Asset or Url and Cache it.

📖 Read the case study — how this package is built and maintained — and the step-by-step usage guide by the author.

Support = [ Android , IOS and WEB(soon) ];

• Open Pdf From Path(local file)
• Open Pdf From Asset
• Open Pdf From URl and Cache it
• Display horizontally or vertically
• Drag and zoom
• Double tap for zoom
• Support password protected pdf
• Jump to a specific page in the pdf

---

Setup

iOS

Opt-in to the embedded views preview by adding a boolean property to the app's Info.plist file with the key io.flutter.embedded_views_preview and the value YES.

iOS (only support> 11.0) you need to add this line in your ios/Podfile

platform :ios, '11.0'

ready-made in the Example

Import it

Now in your Dart code, you can use:

import 'package:flutter_cached_pdfview/flutter_cached_pdfview.dart';

Options

Name	Android	iOS	Default
defaultPage	✅	✅	0
onViewCreated	✅	✅	null
onRender	✅	✅	null
onPageChanged	✅	✅	null
onError	✅	✅	null
onPageError	✅	❌	null
onLinkHandle	✅	✅	null
gestureRecognizers	✅	✅	null
filePath	✅	✅
fitPolicy	✅	❌	FitPolicy.WIDTH
enableSwipe	✅	✅	true
swipeHorizontal	✅	✅	false
password	✅	✅	null
nightMode	✅	❌	false
autoSpacing	✅	✅	true
pageFling	✅	✅	true
pageSnap	✅	❌	true
preventLinkNavigation	✅	✅	false
bockgroundColor	✅	✅	null

Controller Options

Name	Description	Parameters	Return
getPageCount	Get total page count	-	Future<int>
getCurrentPage	Get current page	-	Future<int>
setPage	Go to/Set page	int page	Future<bool>

Example

from Asset

       PDF(
        enableSwipe: true,
        swipeHorizontal: true,
        autoSpacing: false,
        pageFling: false,
        backgroundColor: Colors.grey,
        onError: (error) {
          print(error.toString());
        },
        onPageError: (page, error) {
          print('$page: ${error.toString()}');
        },
        onPageChanged: (int page, int total) {
          print('page change: $page/$total');
        },
      ).fromAsset('assets/pdf/file-example.pdf'),

cached From Url

      PDF(
        swipeHorizontal: true,
      ).cachedFromUrl('https://ontheline.trincoll.edu/images/bookdown/sample-local-pdf.pdf'),

with placeholder until pdfFile download and errorWidget if there are problem

      PDF().cachedFromUrl(
             'https://ontheline.trincoll.edu/images/bookdown/sample-local-pdf.pdf',
             placeholder: (progress) => Center(child: Text('$progress %')),
             errorWidget: (error) => Center(child: Text(error.toString())),
           )

For production usage

If you use proguard, you should include this line [ready-made in the Example].

-keep class com.shockwave.**

Dependencies

Flutter

flutter_pdfview

flutter_cache_manager

Android (only support >= api 20)

AndroidPdfViewer

iOS (only support> 11.0)

PDFKit

Video

Developer

• Abdelrahman Saed