kmpdfkit_demo/example/lib/utils/file_util.dart

// Copyright © 2014-2024 PDF Technologies, Inc. All Rights Reserved.
//
// THIS SOURCE CODE AND ANY ACCOMPANYING DOCUMENTATION ARE PROTECTED BY INTERNATIONAL COPYRIGHT LAW
// AND MAY NOT BE RESOLD OR REDISTRIBUTED. USAGE IS BOUND TO THE ComPDFKit LICENSE AGREEMENT.
// UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS SUBJECT TO CIVIL AND CRIMINAL PENALTIES.
// This notice may not be removed from this file.

import 'dart:io';

import 'package:compdfkit_flutter/compdfkit.dart';
import 'package:flutter/material.dart';

Future<File> extractAsset(BuildContext context, String assetPath,
    {bool shouldOverwrite = true, String prefix = ''}) async {
  final bytes = await DefaultAssetBundle.of(context).load(assetPath);
  final list = bytes.buffer.asUint8List();

  final tempDir = await ComPDFKit.getTemporaryDirectory();
  final tempDocumentPath = '${tempDir.path}/$prefix$assetPath';
  final file = File(tempDocumentPath);

  if (shouldOverwrite || !file.existsSync()) {
    await file.create(recursive: true);
    file.writeAsBytesSync(list);
  }
  return file;
}