如何将Flutter上的查看pdf文件保存到设备的Local Storage？

dependencies:
  flutter_pdfview: ^1.0.0

import 'package:flutter/material.dart';
import 'package:flutter_pdfview/flutter_pdfview.dart';

class PDFScreen extends StatelessWidget {
  final String pdfPath;

  PDFScreen({required this.pdfPath});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('PDF Viewer'),
      ),
      body: PDFView(
        filePath: pdfPath,
      ),
    );
  }
}

dependencies:
  path_provider: ^2.0.2

import 'package:path_provider/path_provider.dart';

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

import 'dart:io';
import 'package:path/path.dart' as path;

Future<void> savePDFToLocalStorage(String pdfPath) async {
  final localPath = await getLocalPath();
  final fileName = path.basename(pdfPath);
  final localFile = File('$localPath/$fileName');

  if (!await localFile.exists()) {
    final bytes = File(pdfPath).readAsBytesSync();
    await localFile.writeAsBytes(bytes);
  }
}

savePDFToLocalStorage('path/to/pdf/file.pdf');