Flutter:在图片包中，如何将copyCrop()返回的裁剪图片保存到path中？

dependencies:
  image_picker: ^0.8.4+4
  path_provider: ^2.0.5

import 'package:image_picker/image_picker.dart';
import 'package:path_provider/path_provider.dart';
import 'dart:io';

final picker = ImagePicker();
final image = await picker.pickImage(source: ImageSource.gallery);

if (image != null) {
  final croppedImage = await ImageCropper.cropImage(
    sourcePath: image.path,
    aspectRatio: CropAspectRatio(ratioX: 1, ratioY: 1),
    compressQuality: 100,
    maxWidth: 500,
    maxHeight: 500,
    compressFormat: ImageCompressFormat.jpg,
    androidUiSettings: AndroidUiSettings(
      toolbarTitle: 'Crop Image',
      toolbarColor: Colors.deepOrange,
      toolbarWidgetColor: Colors.white,
      initAspectRatio: CropAspectRatioPreset.original,
      lockAspectRatio: false,
    ),
  );

  if (croppedImage != null) {
    final directory = await getApplicationDocumentsDirectory();
    final imagePath = '${directory.path}/cropped_image.jpg';
    final File newImage = await croppedImage.copy(imagePath);
    // 保存成功，newImage即为保存的裁剪图片
  }
}