Flutter Web How to Convert Uint8List to File

Question

I am having trouble on converting Uint8List image to File on flutter web since dart:io is not supported on the web, i need it to be file in order to upload it to FirebaseStorage, is there any workaround for this ? thankyou

Middle

Answer 1

Since dart:io isn't avalible on web, you can use the universal_io package.

Add it to your pubspec.yaml.

import 'package:universal_io/io.dart';

File createFileFromBytes(Uint8List bytes) => File.fromRawPath(bytes);

Tholos

isnt dart : io not supported on flutter-web? – Middle

Yes, you are right. dart:io isn't avalibe on web, but you can use the universal_io package. – Tholos

ah thankyou i dont know that package exist, will accept your answer after i tried it – Middle

Okay, here is the package on pub: pub.dev/packages/universal_io – Tholos

For me, this returns Error: FormatException: Unexpected extension byte (at offset 0). There are several similar issues reported and the author has yet to reply to any of them. – Popham

This is not the answer, this uses the Uint8List as the file path, not the actual contents – Unscrupulous

Error: FormatException: Missing extension byte (at offset 402) Any solution? – Privileged