Not able to open pdf from localstorage by using PdfDocument.openFile(path) - Flutter
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Try this!
import 'dart:io';
import 'dart:typed_data';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:native_pdf_renderer/native_pdf_renderer.dart';
class Test extends StatefulWidget {
_Test createState() => _Test();
}
class _Test extends State<Test> {
bool? isLoaded = false;
Uint8List? theImage;
File? file;
@override
void initState() {
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Test"),
centerTitle: true,
),
body: Container(child: mainWid(context)),
floatingActionButton: FloatingActionButton(
onPressed: () async {
getFile();
},
child: Icon(Icons.add),
),
);
}
Widget mainWid(BuildContext context) {
return isLoaded == true
? Center(
child: Image(
image: MemoryImage(theImage!),
),
)
: CircularProgressIndicator();
}
Future<void> getFile() async {
FilePickerResult? result = await FilePicker.platform.pickFiles();
file = File(result!.files.single.path.toString());
var fileType = file!.path.split(".").last;
if (fileType == "pdf") {
getImage(file);
}
}
Future<void> getImage(File? file) async {
final doc = await PdfDocument.openFile(file!.path);
final page = await doc.getPage(1);
final pageImage = await page.render(width: page.width, height: page.height);
isLoaded = true;
theImage = pageImage!.bytes;
setState(() {});
}
}
Author by
John
Updated on January 01, 2023Comments
-
John over 1 year
I need to a open pdf file from the local storage, here i use native_pdf_renderer: ^3.1.0 package for this purpose. As per the documentation, using the method
PdfDocument.openFile('path/to/file/on/device')
will fetch file from local storage. But In my case it doesn't work, show's an errorPlatformException (PlatformException(PDF_RENDER, Can't open file, null, null))
. The other methodsPdfDocument.openAsset('assets/sample.pdf')
andPdfDocument.openData(uint8Data)
work's fine. How can this be made to work?FilePickerResult result = await FilePicker.platform.pickFiles( allowMultiple: false, ); File doc = File(result.files.single.path); PdfPageImage thePdfThumbNail = await getSinglePageImage(doc.path); ... Future<PdfPageImage> getSinglePageImage(String path) async { PdfDocument newDoc = await PdfDocument.openFile(path); final page = await newDoc.getPage(1); final pageImage = await page.render( width: page.width, height: page.height, format: PdfPageFormat.JPEG, ); return pageImage; }