This article explains how to export a text content, json list or object in an flutter application to the device. See the following image for a preview.

Here we used the following code:
import 'dart:convert';
import 'package:share_plus/share_plus.dart';
import 'package:path_provider/path_provider.dart';
import 'dart:io';
import 'package:intl/intl.dart';Future convertStringToFileShare(BuildContext context, String imputListAsString) async {…
This article is to show you the basic operations to convert JSON objects in dart flutter.
JSON Object to String
import 'dart:convert';
After the import, you can add the following code or wrap it around a function.
const data = {'text': 'foo', 'value': 2, 'status': false};
final String jsonString = jsonEncode(data);
print(jsonString);// Output
//…