heic_to_jpg 0.1.1

With this library you can convert HEIC/HEIF file to JPEG image easily

example/lib/main.dart

import 'dart:io';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'dart:async';

import 'package:heic_to_jpg/heic_to_jpg.dart';
import 'package:path_provider/path_provider.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String heicUrl = 'https://filesamples.com/samples/image/heic/sample1.heic';
  String jpeg;
  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    File heicFile = await _downloadFile(heicUrl, 'a.heic');
    String tmp  = await HeicToJpg.convert(heicFile.path);
    setState(() {
      jpeg = tmp;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: (jpeg != null && jpeg.isNotEmpty)? Image.file(File(jpeg)) : Text('No Image'),
        ),
      ),
    );
  }

  static var httpClient = new HttpClient();
Future<File> _downloadFile(String url, String filename) async {
  var request = await httpClient.getUrl(Uri.parse(url));
  var response = await request.close();
  var bytes = await consolidateHttpClientResponseBytes(response);
  String dir = (await getTemporaryDirectory()).path;
  File file = new File('$dir/$filename');
  await file.writeAsBytes(bytes);
  return file;
}
}