ResultType.fileNotFound

[YemaneZewdu]

Hi @crazecoder,

Isn't it possible to open files from the assets folder? It isn't accessing anything. I have added their path to the pubsec.yaml file but getting fileNotFound error. I am using an Android phone.

In my pubsec.yaml file: assets: - assets/MezmurGitsawe.pdf - assets/1.jpg

Error message: I/flutter (15303): type=ResultType.fileNotFound message=the assets/1.jpg file is not exists

Thank you

[matpag]

You can just copy the file in the internal memory, then open that file.

Something like this:

static Future<File> getAssetByName(String sourceName) async {
  var sampleData = await rootBundle.load("assets/$sourceName");
  final path = await _localPath;
  var file = File('$path/$sourceName');
  file = await file.writeAsBytes(sampleData.buffer.asUint8List());
  return file;
}

static Future<String> get _localPath async {
  final directory = await getApplicationDocumentsDirectory();
  return directory.path;
}

//then in your code
var file = await getAssetByName("hello.pdf");
OpenFile.open(file.path, type: "application/pdf");

[YemaneZewdu]

Thanks a lot for your reply, @matpag. I got this error after trying the code. Do you have any suggestions?

I have imported dart:io' and path provider libraries. I tried to debug it and saw that the error is thrown on the last line, OpenFile.open(file.path, type: "application/pdf");. All the other lines worked fine.

Thanks!

[ERROR:flutter/lib/ui/ui_dart_state.cc(157)] PlatformException(error, Attempt to invoke virtual method 'android.content.res.XmlResourceParser android.content.pm.ProviderInfo.loadXmlMetaData(android.content.pm.PackageManager, java.lang.String)' on a null object reference, null)

[matpag]

You are probably passing a wrong name to the getAssetByName() method Remember that if your file is at assets/hello/hello.pdf you need to call the method in this way: getAssetByName("hello/hello.pdf")

Then remember that you need to add all the folders in the pubspec.yaml

Like:

flutter:
  //...
  assets:
    - assets/
    - assets/hello/

[YemaneZewdu]

Thank you for the quick response. I tried it on an android phone and it is working. I hope it will also work on iOS, right?

Thank you!!