Flutter file word readable - flutter

Question

I want to write a file with flutter, that has got the same function as WORLD_READABLE in android. So i want tha this file can be read by all the applications.
More clear: i have an app A that write hello.txt i want that another app B can read this file. How i should set my file? There is a parameter of some function in the package path_provider?
I seen the package path_provider and File class, but i didn't find something.
I have already tried by access direct to file from app B, but is not world readable.

Answer 1

Something like this should work and make sure you use the latest path_provider dependency. getExternalStorageDirectory() does the trick!
//Write file from App 1
import 'dart:io';
import 'package:path_provider/path_provider.dart';
Future<void> writeToFile(String data) async {
final directory = await getExternalStorageDirectory();
final file = File('${directory.path}/hello.txt');
await file.writeAsString(data);
}
//Read the written file from App 2
import 'dart:io';
import 'package:path_provider/path_provider.dart';
Future<String> readFromFile() async {
final directory = await getExternalStorageDirectory();
final file = File('${directory.path}/hello.txt');
return file.readAsString();
}