Files Files

main.dart

import 'dart:convert';
import 'dart:io';

import 'package:flutter/material.dart';
import 'package:path/path.dart';
import 'package:path_provider/path_provider.dart';

void main() {
  runApp(
    MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Screen(),
    ),
  );
}

Future<String> getPath() async {
  final folder = await getApplicationDocumentsDirectory();
  return folder.path;
}

void createFile() async {
  String path = await getPath();
  // File file = File("$path/codes.txt");
  // file.create();
  File file = File("$path/books.txt");
  // file.writeAsString("Go to school");
  file.writeAsString("\nGo to hell", mode: FileMode.append);
  file.writeAsString("مدرستي قبيحة", mode: FileMode.append, encoding: utf8);
}

void readFromFile() async {
  String path = await getPath();
  File file = File("$path/books.txt");
  String data = await file.readAsString();
  print(data);
}

void deleteFile() async {
  String path = await getPath();
  File file = File("$path/codes.txt");
  file.delete();
}

void createFolder() async {
  String path = await getPath();
  Directory dir = Directory("$path/songs");
  dir.create();
}

void deleteFolder() async {
  String path = await getPath();
  Directory dir = Directory("$path/songs");
  if (await dir.exists()) {
    dir.delete(recursive: true);
  }
}

void listFilesInFolder() async {
  String path = await getPath();
  Directory dir = Directory("$path/books");
  dir.list(recursive: true).forEach((element) async{
    String fileName = basename(element.path);
    bool directory = await isDirectory(element.path);
    print("$fileName -> ${directory ? "Folder" : "File"}");
  });
}

Future<bool> isDirectory(String path) async{
  return await Directory(path).exists();
}

class Screen extends StatelessWidget {
  const Screen({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Test file"),
      ),
      body: Center(
        child: Column(
          children: [
            ElevatedButton(
              onPressed: () {
                createFolder();
              },
              child: Text("Create Folder"),
            ),
            ElevatedButton(
              onPressed: () {
                listFilesInFolder();
              },
              child: Text("List files in Folder"),
            ),
            ElevatedButton(
              onPressed: () {
                deleteFolder();
              },
              child: Text("Delete Folder"),
            ),
            ElevatedButton(
              onPressed: () {
                createFile();
              },
              child: Text("Create file"),
            ),
            ElevatedButton(
              onPressed: () {
                readFromFile();
              },
              child: Text("Read file"),
            ),
            ElevatedButton(
              onPressed: () {
                deleteFile();
              },
              child: Text("Delete file"),
            ),
          ],
        ),
      ),
    );
  }
}