main() async {
List letters = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k"];
File file = new File("Letters.txt");
for (int i = 0; i < 10; i++) {
await file.writeAsString("${letters[i]}", mode: FileMode.append);
}
}
Future<File> get _localFile async {
final path = await _localPath;
return File('$path/counter.txt');
}
Future<String> get _localPath async {
final directory = await getApplicationDocumentsDirectory();
return directory.path;
}