如何在flutter中重命名图像拾取器中的图像？

import 'package:image_picker/image_picker.dart';

Future<void> pickAndRenameImage() async {
  final picker = ImagePicker();
  final pickedFile = await picker.getImage(source: ImageSource.gallery);
  
  if (pickedFile != null) {
    // 获取选择的图像文件路径
    String imagePath = pickedFile.path;
    
    // 重命名图像文件
    String renamedImagePath = 'new_image_name.jpg'; // 替换为你想要的新文件名
    
    // 使用Flutter的文件操作API来重命名图像文件
    final renamedImage = await pickedFile.copy(renamedImagePath);
    
    // 打印新文件路径
    print('Renamed image path: ${renamedImage.path}');
  }
}

FlatButton(
  onPressed: () {
    pickAndRenameImage();
  },
  child: Text('选择并重命名图像'),
),